ORCID Profile
0000-0002-4651-1215
Current Organisations
University of New South Wales
,
University of Technology Sydney
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Research Topics
In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Top 5 Research Topics
ANZSRC Field of Research (FoR)
Structural Engineering | Civil Engineering | Construction Materials | Structural engineering | Civil engineering | Urban and Regional Planning not elsewhere classified | Construction Engineering | Construction materials |
ANZSRC Socio-Economic Objective (SEO)
Cement and Concrete Materials | Civil Construction Design | Metals (e.g. Composites, Coatings, Bonding) | Solar-Thermal Electric Energy | Civil Construction Processes | Environmentally Sustainable Construction not elsewhere classified | Environmentally Sustainable Manufacturing not elsewhere classified | Cement Products and Concrete Materials
Related Links
Publications
Recent studies on mechanical properties of recycled aggregate concrete in China—A review
Publisher: Springer Science and Business Media LLC
Date: 20-03-2012
COMPARATIVE ANALYSIS ON INTERNATIONAL CONSTRUCTION AND DEMOLITION WASTE MANAGEMENT POLICIES AND LAWS FOR POLICY MAKERS IN CHINA
Publisher: Vilnius Gediminas Technical University
Date: 23-01-2023
Abstract: In the current age of enhanced environmental awareness, transformation to sustainable management in the construction sector is needed. China currently produces the largest amount of construction and demolition (C& D) waste around the world, but the average recovery rate of the waste was only about 5% in 2017. In order to investigate problems in current C& D waste management in China, a cross-national comparative analysis is conducted among China and seven selected countries (Japan, South Korea, Germany, Italy, Austria, the Netherlands and the United Kingdom), to compare legal texts of national policies and laws which relate to C& D waste management and are currently being used. Through the comparison, problems in management of C& D waste in China are investigated. The problems could be concluded to: (a) inadequate guidance on recycling, (b) lack of market incentives in utilising recycled materials, (c) incomplete knowledge of stakeholders’ responsibilities, (d) lack of penalty for other stakeholders, and (e) inefficient supervision system. By understanding these problems, this paper further provides recommendations to enhance the performance of C& D waste management in China.
Influence of aggregate spatial distribution of concrete against projectile penetration
Publisher: IOP Publishing
Date: 08-11-2018
Impact performances of steel tube-confined recycled aggregate concrete (STCRAC) after exposure to elevated temperatures
Publisher: Elsevier BV
Date: 02-2018
A critical review on phase change materials (PCM) for sustainable and energy efficient building: Design, characteristic, performance and application
Publisher: Elsevier BV
Date: 04-2022
Effect of incompatibility between healing agent and cement matrix on self-healing performance of intelligent cementitious composite
Publisher: IOP Publishing
Date: 30-09-2020
Abstract: Encapsulation-based intelligent self-healing cementitious composite with a potential of crack self-healing and closure is promising to recovery concrete from damage and improve the durability and serviceability of infrastructures. The efficiency of self-healing concrete were investigated, but limited studies have been conducted on effect of incompatibility between the self-healing agent and cement matrix on the cracking behaviour and recovery efficiency of crack-healed concrete. In this study, a coupled experimental and numerical investigations were adopted to understand the cracking behaviours of crack-healed cementitious composites using traction–separation law by extended finite element method (XFEM). Firstly, experimental investigation was conducted to characterize the properties and parameters of cement matrix and healing agent-crack interface to calibrate the traction–separation law. Then, various parameters of healing agent, cement matrix, and their interface on the performance of crack-healed cementitious composite was numerically analysed. The results indicate that to achieve excellent self-healing performance, it is vital to consider the incompatibility between healing agent and cement matrix in the design of intelligent self-healing cementitious composites.
Degradation prediction of recycled aggregate concrete under sulphate wetting–drying cycles using BP neural network
Publisher: Elsevier BV
Date: 12-2022
A novel cohesive zone model for predicting the interface bonding behaviours of the ballastless track of high-speed railway
Publisher: Elsevier BV
Date: 07-2022
Mechanical behaviors of CFRP-confined sustainable geopolymeric recycled aggregate concrete under both static and cyclic compressions
Publisher: Elsevier BV
Date: 11-2020
Property degradation of seawater sea sand cementitious mortar with GGBFS and glass fiber subjected to elevated temperatures
Publisher: Elsevier BV
Date: 07-2021
Hydration of Portland cement with seawater toward concrete sustainability: Phase evolution and thermodynamic modelling
Publisher: Elsevier BV
Date: 04-2023
Nano/micromechanical characterisation and image analysis on the properties and heterogeneity of ITZs in geopolymer concrete
Publisher: Elsevier BV
Date: 02-2022
Mechanical Properties and Durability of Sustainable Concrete Containing Various Industrial Solid Wastes
Publisher: SAGE Publications
Date: 06-08-2021
DOI: 10.1177/03611981211031236
Abstract: Benefits of replacing ordinary Portland cement with industrial solid wastes are promising for reducing cement production and solving environmental problems associated with industrial solid wastes. In this study, an experimental investigation was conducted to evaluate the performance of sustainable concrete containing different industrial solid wastes (e.g., waste glass, coal gangue, fly ash, and slag), with the attention on the mechanical strength, chloride transport property, and pore structure characteristics. Three water to binder ratios (i.e., 0.38, 0.48, and 0.65) and three replacement levels (i.e., 10%, 20%, and 30%) were considered in this work. The test results show that regardless of the content and type of industrial solid wastes, the inclusion of industrial solid wastes generally exerts a negative influence on the mechanical properties, especially under high water to binder ratios. However, acceptable mechanical strength can still be achieved in these sustainable concretes. In addition, the inclusion of industrial solid wastes could enhance the chloride diffusion resistance of concrete, and also the concrete with waste glass powder showed the best performance. Furthermore, the incorporation of industrial solid wastes has a refinement effect on the microstructure of the matrix, manifesting as decreased cumulative pore volume and compacted microstructural morphology.
Numerical modelling of plastic–damage response and crack propagation in RAC under uniaxial loading
Publisher: Thomas Telford Ltd.
Date: 05-2018
Abstract: In order to better understand the failure mechanism of recycled aggregate concrete (RAC), a numerical study on modelled recycled aggregate concrete (MRAC) was conducted to investigate the plastic–damage response and crack propagation under uniaxial loading. In the numerical model, the nanoscale mechanical properties and the thickness of the interfacial transition zones (ITZs) were obtained based on advanced nanoindentation. The constitutive relationships of new and old cement mortars and corresponding ITZs were developed using plastic–damage constitutive relationships. The effects of the relative mechanical properties between new and old cement mortars on the failure pattern and stress–strain response of MRAC were investigated. After calibration and verification with the uniaxial compression test, the numerical model was found to be able to reveal the failure pattern and stress–strain curves of MRAC under uniaxial tension. The results showed that microcracks usually first appear around the weak new and old ITZs, and then propagate into the new and old cement mortars. With an increase in the relative strength between new and old cement mortars, the microcrack initiation locations gradually shifted from the new ITZs to the old ITZs. Therefore, the numerical results can provide insight into the modification of RAC using mix design optimisation and ITZ enhancement.
Piezoresistive behaviours of cement-based sensor with carbon black subjected to various temperature and water content
Publisher: Elsevier BV
Date: 12-2019
Piezoresistivity deterioration of smart graphene nanoplate/cement-based sensors subjected to sulphuric acid attack
Publisher: Elsevier BV
Date: 02-2020
Chloride-binding capacity of cement-GGBFS-nanosilica composites under seawater chloride-rich environment
Publisher: Elsevier BV
Date: 08-2022
Comparison on the properties of ITZs in fly ash-based geopolymer and Portland cement concretes with equivalent flowability
Publisher: Elsevier BV
Date: 05-2021
Structural behavior of glubam I-joists
Publisher: Elsevier BV
Date: 11-2019
Compressive performance of fiber reinforced polymer encased recycled concrete with nanoparticles
Publisher: Elsevier BV
Date: 09-2021
A review study on encapsulation-based self-healing for cementitious materials
Publisher: Wiley
Date: 03-09-2019
Failure behaviour and damage evolution of multi-recycled aggregate concrete under triaxial compression
Publisher: Elsevier BV
Date: 11-2023
Effects of graphene oxide on early-age hydration and electrical resistivity of Portland cement paste
Publisher: Elsevier BV
Date: 04-2017
Performance enhancement of recycled concrete aggregate – A review
Publisher: Elsevier BV
Date: 2016
A review on corrosion detection and protection of existing reinforced concrete (RC) structures
Publisher: Elsevier BV
Date: 03-2022
On 4R Principle in the Rehabilitation of Concrete Historic Buildings
Publisher: Trans Tech Publications, Ltd.
Date: 10-2010
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.133-134.985
Abstract: vThe 4R principle refers to reduce, reuse, recycle and regeneration, which should be implemented in the process of concrete treatment. In terms of the special micro-structural properties and self-repairing capacity, concrete is one kind of regenerative construction materials. Through proper handlings, self-repairing (crack close-up) of concrete cracks is possible in the concrete hydration damaged region. Due to the effect of heterogeneous nucleation and subsequent crystal growth of calcium hydroxide, a better bonding strength forms interlocking the new and old concrete interfaces. A proposal on the relationship between the self-repairing, regeneration function of concrete and the rehabilitation of historic buildings is suggested, this is based on the formed process of the bonding strength of the interfaces and the function on concrete repairing. Besides the constitution and features of the microstructure of concrete, the relationship between the micro-structure and the macro-mechanical property is also investigated in this paper
Investigation on dynamic mechanical properties of fly ash/slag-based geopolymeric recycled aggregate concrete
Publisher: Elsevier BV
Date: 03-2020
Using graphene oxide to improve physical property and control ASR expansion of cement mortar
Publisher: Elsevier BV
Date: 11-2021
Interfacial transition zones in recycled aggregate concrete with different mixing approaches
Publisher: Elsevier BV
Date: 10-2012
Sulfate attack resistance of sustainable concrete incorporating various industrial solid wastes
Publisher: Elsevier BV
Date: 05-2019
Effects of interfacial transition zones on the stress–strain behavior of modeled recycled aggregate concrete
Publisher: Elsevier BV
Date: 10-2013
Investigation on early-age hydration, mechanical properties and microstructure of seawater sea sand cement mortar
Publisher: Elsevier BV
Date: 07-2020
Piezoresistivity of smart carbon nanotubes (CNTs) reinforced cementitious composite under integrated cyclic compression and impact
Publisher: Elsevier BV
Date: 06-2020
Self-sensing capabilities of cement-based sensor with layer-distributed conductive rubber fibres
Publisher: Elsevier BV
Date: 2020
Numerical investigation on interface crack initiation and propagation behaviour of self-healing cementitious materials
Publisher: Elsevier BV
Date: 08-2019
Pore shape analysis using centrifuge driven metal intrusion: Indication on porosimetry equations, hydration and packing
Publisher: Elsevier BV
Date: 11-2017
Self-sensing performance of cement-based sensor with carbon black and polypropylene fibre subjected to different loading conditions
Publisher: Elsevier BV
Date: 11-2022
Effects of graphene oxide aggregates on hydration degree, sorptivity, and tensile splitting strength of cement paste
Publisher: Elsevier BV
Date: 09-2017
Maximum likelihood estimation for nanoindentation on sodium aluminosilicate hydrate gel of geopolymer under different silica modulus and curing conditions
Publisher: Elsevier BV
Date: 10-2020
Effects of nano-particles on failure process and microstructural properties of recycled aggregate concrete
Publisher: Elsevier BV
Date: 07-2017
Shear behavior degradation and failure pattern of reinforced concrete beam with chloride-induced stirrup corrosion
Publisher: SAGE Publications
Date: 14-06-2019
Abstract: Reinforcement corrosion exhibits an adverse effect on the shear strength of reinforced concrete structures. In order to investigate the effects of chloride-induced corrosion of reinforcing steel on the shear behavior and failure pattern of reinforced concrete beams, a total of 24 reinforced concrete beams with different concrete strength grades and arrangements of stirrups were fabricated, among which 22 beams were subjected to accelerated corrosion to achieve different degrees of reinforcement corrosion. The failure pattern, crack propagation, load–displacement response, and ultimate strength of these beams were investigated under a standard four-point loading test in this study. Extensive comparative analysis was conducted to investigate the effects of the concrete strength, shear span-to-depth ratio, and stirrup type on the shear behavior of the corroded reinforced concrete beams. The results show that increasing the stirrup yielding strength is more effective in improving the shear strength of corroded reinforced concrete beams than that of concrete compressive strength. In terms of three types of stirrups, the shear strength of the beams with deformed HRB-335 is least sensitive to stirrup corrosion, followed by the beams with smooth HPB-235 and the beams with deformed HRB-400. The effect of the different stirrups on the shear strength depends on the corrosion degree of stirrup and shear span-to-depth ratio of the beam. The predicted results of shear strength of corroded reinforced concrete beams by a proposed analytical model are well consistent with the experimental results.
Effects of pipe diameter, curing age and exposure temperature on chloride diffusion of concrete with embedded PVC pipe
Publisher: Elsevier BV
Date: 10-2022
Effect of load distribution on the behaviour of RC beams strengthened in flexure with near-surface mounted (NSM) FRP
Publisher: Elsevier BV
Date: 2022
Behavior of glass and carbon FRP tube encased recycled aggregate concrete with recycled clay brick aggregate
Publisher: Elsevier BV
Date: 11-2016
Deterioration of concrete under coupled aggressive actions associated with load, temperature and chemical attacks: A comprehensive review
Publisher: Elsevier BV
Date: 03-2022
Development of High-Performance Self-Compacting Concrete Applied as the Filling Layer of High-Speed Railway
Publisher: American Society of Civil Engineers (ASCE)
Date: 02-2018
Performance Enhancement of Permeable Asphalt Mixtures With Recycled Aggregate for Concrete Pavement Application
Publisher: Frontiers Media SA
Date: 16-09-2020
Mitigation Effect of Waste Glass Powders on Alkali–Silica Reaction (ASR) Expansion in Cementitious Composite
Publisher: Springer Science and Business Media LLC
Date: 20-11-2018
Influence of Parent Concrete Properties on Compressive Strength and Chloride Diffusion Coefficient of Concrete with Strengthened Recycled Aggregates
Publisher: MDPI AG
Date: 16-10-2020
DOI: 10.3390/MA13204631
Abstract: Parent concrete coming from a wide range of sources can result in considerable differences in the properties of recycled coarse aggregate (RCA). In this study, the RCAs were obtained by crushing the parent concrete with water-to-cement ratios (W/Cparent) of 0.4, 0.5 and 0.6, respectively, and were strengthened by carbonation and nano-silica slurry wrapping methods. It was found that when W/Cparen was 0.3, 0.4 and 0.5, respectively, compared with the mortar in the untreated RCA, the capillary porosity of the mortar in the carbonated RCA decreased by 19%, 16% and 30%, respectively the compressive strength of concrete containing the carbonated RCA increased by 13%, 11% and 13%, respectively the chloride diffusion coefficient of RAC (DRAC) containing the nano-SiO2 slurry-treated RCA decreased by 17%, 16% and 11% and that of RAC containing the carbonated RCA decreased by 21%, 25% and 26%, respectively. Regardless of being strengthened or not, both DRAC and porosity of old mortar in RCAs increased with increasing W/Cparent. For different types of RCAs, DRAC increased obviously with increasing water absorption of RCA. Finally, a theoretical model of DRAC considering the water absorption of RCA was established and verified by experiments, which can be used to predict the DRAC under the influence of different factors, especially the water absorption of RCA.
Study on the failure mechanism of geopolymeric recycled concrete using digital image correlation method
Publisher: Informa UK Limited
Date: 10-03-2021
Novel empirical model for predicting residual flexural capacity of corroded steel reinforced concrete beam
Publisher: Springer Science and Business Media LLC
Date: 13-07-2020
Dynamic increased reinforcing effect of graphene oxide on cementitious nanocomposite
Publisher: Elsevier BV
Date: 05-2019
Sustainable regenerated binding materials (RBM) utilizing industrial solid wastes for soil and aggregate stabilization
Publisher: Elsevier BV
Date: 12-2020
Recycling of raw water treatment sludge in cementitious composites: effects on heat evolution, compressive strength and microstructure
Publisher: Elsevier BV
Date: 10-2020
Strain monitoring for a bending concrete beam by using piezoresistive cement-based sensors
Publisher: Elsevier BV
Date: 04-2018
Effects of Annealing and Training on NiTi Alloy Ring for Clamping Device
Publisher: Informa UK Limited
Date: 17-12-2015
Effects of nano-silica and nano-limestone on flowability and mechanical properties of ultra-high-performance concrete matrix
Publisher: Elsevier BV
Date: 10-2015
Performance of asphalt mortar with recycled concrete powder under different filler-to-asphalt weight ratios
Publisher: Elsevier BV
Date: 07-2023
Self-sensing cement-based sensors with superhydrophobic and self-cleaning capacities after silane-based surficial treatments
Publisher: Elsevier BV
Date: 12-2022
Multifunctional cementitious composites with integrated self-sensing and hydrophobic capacities toward smart structural health monitoring
Publisher: Elsevier BV
Date: 04-2021
Advances in multifunctional cementitious composites with conductive carbon nanomaterials for smart infrastructure
Publisher: Elsevier BV
Date: 04-2022
Piezoresistive performance of hydrophobic cement-based sensors under moisture and chloride-rich environments
Publisher: Elsevier BV
Date: 02-2022
Review on designs and properties of multifunctional alkali-activated materials (AAMs)
Publisher: Elsevier BV
Date: 03-2019
Modification of Magnesium Oxysulfate Cement by Incorporating Weak Acids
Publisher: American Society of Civil Engineers (ASCE)
Date: 09-2018
Simulation Study on the Stress Distribution in Modeled Recycled Aggregate Concrete under Uniaxial Compression
Publisher: American Society of Civil Engineers (ASCE)
Date: 04-2013
Durability of Sustainable Construction Materials with Solid Wastes
Publisher: Springer Singapore
Date: 04-09-2019
Properties of interfacial transition zones in recycled aggregate concrete tested by nanoindentation
Publisher: Elsevier BV
Date: 03-2013
An improved VOF-DEM model for soil-water interaction with particle size scaling
Publisher: Elsevier BV
Date: 12-2020
Hydration mechanism and early frost resistance of calcium sulfoaluminate cement concrete
Publisher: Elsevier BV
Date: 04-2020
Influence of Nanolimestone on the Hydration, Mechanical Strength, and Autogenous Shrinkage of Ultrahigh-Performance Concrete
Publisher: American Society of Civil Engineers (ASCE)
Date: 2016
Structural Behaviour of Composite Members with Recycled Aggregate Concrete — An Overview
Publisher: SAGE Publications
Date: 06-2015
DOI: 10.1260/1369-4332.18.6.919
Abstract: A series of investigations on structural behaviour, durability, fire-resistance and seismic performance of composite members with recycled aggregate concrete (RAC) have been carried out in the past 10 years (2005–2014). This paper is consisted of three parts: the first part introduces and discusses the research progress in regard to the structural behaviour of RAC filled steel tubular columns and beams the second part concentrates on the structural behaviour of steel-reinforced RAC members, including columns, beams, shear walls and slabs and the third part focuses on the long-term performance of composite members with RAC, involving fire resistance, durability and seismic performance. It seems that RAC composite members with different replacement ratios of recycled coarse aggregate have slightly lower or similar structural behaviour compared to that of normal concrete composite members. Review results reveal that it is feasible to apply steel-RAC composite members as structural applications. This intensive review provides a reasonable knowledge of the structural behaviour of steel-RAC composite members, and recommends further investigations on the failure mechanics and durability of steel-RAC composite members which are needed to promote safe and economic application in the future.
Investigation on effect of aggregate on three non-destructive testing properties of concrete subjected to sulfuric acid attack
Publisher: Elsevier BV
Date: 07-2016
Durability deterioration of concrete under marine environment from material to structure: A critical review
Publisher: Elsevier BV
Date: 03-2021
Effect of chloride-induced corrosion on the bond behaviors between steel strands and concrete
Publisher: Springer Science and Business Media LLC
Date: 06-2021
Mechanical properties and piezoresistive performances of intrinsic graphene nanoplate/cement-based sensors subjected to impact load
Publisher: Elsevier BV
Date: 04-2022
Effects of silica fume on physicochemical properties and piezoresistivity of intelligent carbon black-cementitious composites
Publisher: Elsevier BV
Date: 10-2020
Fracture behaviours of sustainable multi-recycled aggregate concrete under combined compression-shear loading
Publisher: Elsevier BV
Date: 08-2023
Texture synthesis: A novel method for generating digital models with heterogeneous diversity of rock materials and its CGM verification
Publisher: Elsevier BV
Date: 02-2021
Piezoresistivity of Carbon Black/Cement-Based Sensor Enhanced with Polypropylene Fibre
Publisher: Springer International Publishing
Date: 05-09-2021
Effects of environmental actions, recycled aggregate quality and modification treatments on durability performance of recycled concrete
Publisher: Elsevier BV
Date: 11-2020
Enhanced mechanical properties and durability of coal gangue reinforced cement-soil mixture for foundation treatments
Publisher: Elsevier BV
Date: 09-2019
Advanced progress in recycling municipal and construction solid wastes for manufacturing sustainable construction materials
Publisher: Elsevier BV
Date: 05-2020
Investigation on physicochemical and piezoresistive properties of smart MWCNT/cementitious composite exposed to elevated temperatures
Publisher: Elsevier BV
Date: 09-2020
Experimental and numerical studies on impact behaviors of recycled aggregate concrete-filled steel tube after exposure to elevated temperature
Publisher: Elsevier BV
Date: 12-2017
Uniaxial compressive behaviors of fly ash/slag-based geopolymeric concrete with recycled aggregates
Publisher: Elsevier BV
Date: 11-2019
Heavy metals immobilization of ternary geopolymer based on nickel slag, lithium slag and metakaolin
Publisher: Elsevier BV
Date: 07-2023
Failure processes of modeled recycled aggregate concrete under uniaxial compression
Publisher: Elsevier BV
Date: 11-2012
Multifunctional cementitious composites with integrated self-sensing and self-healing capacities using carbon black and slaked lime
Publisher: Elsevier BV
Date: 07-2022
Performance deterioration of sustainable recycled aggregate concrete under combined cyclic loading and environmental actions
Publisher: Informa UK Limited
Date: 22-05-2020
Effect of microlimestone on properties of self-consolidating concrete with manufactured sand and mineral admixture
Publisher: Springer Science and Business Media LLC
Date: 12-2020
The role and interaction of superplasticizer and emulsifier in fresh cement asphalt emulsion paste through rheology study
Publisher: Elsevier BV
Date: 10-2016
Effect of layer-distributed carbon nanotube (CNT) on mechanical and piezoresistive performance of intelligent cement-based sensor
Publisher: IOP Publishing
Date: 05-10-2020
Abstract: Agglomerated carbon nanotube (CNT) powder was scattered into a cement paste layer-by-layer to form layer-distributed CNT composite (LDCC) as intelligent cement-based sensor. The characteristic of the CNT agglomerations and its effect on the mechanical and piezoresistive properties of cement paste were investigated in this study, and the results were compared with those of uniformly-dispersed CNT composites (UDCC). Based on the statistics of CNT agglomerations, it was found that the sizes of agglomerations varied from several to dozens of micrometres. The larger sized agglomerations with poorer roundness exhibited a higher possibility to cause the pores or voids accompanied with stress concentration when subjected to external forces. Hence, it is necessary to control the agglomeration sizes to reduce the porosity with edges and corners. The UDCC reached the highest compressive strength, followed by the plain cement paste and then LDCC. The mechanical strength of LDCC decreased with the increase of CNT layers. The piezoresistivity occurred in both the UDCC and LDCC, with the former possessing stable and repeatable performance. In addition, the strain-sensing ability of LDCC with moderate CNT layers presented similar sensing efficiency and repeatability to that of UDCC. The related results provide insight into the intelligent cement-based sensors with layer-distributed CNT and agglomerations, which can improve the efficiency and effectively reduce the cost for practical application.
Editorial: Intelligent Concrete, New Functionalities and Nanotechnology
Publisher: Frontiers Media SA
Date: 18-02-2022
Micromechanical Numerical Modelling on Compressive Failure of Recycled Concrete using Discrete Element Method (DEM)
Publisher: MDPI AG
Date: 29-09-2020
DOI: 10.3390/MA13194329
Abstract: This paper investigates the failure processes of recycled aggregate concrete by a model test and numerical simulations. A micromechanical numerical modeling approach to simulate the progressive cracking behavior of the modeled recycled aggregate concrete, considering its actual meso-structures, is established based on the discrete element method (DEM). The determination procedure of contact microparameters is analyzed, and a series of microscopic contact parameters for different components of modeled recycled aggregate concrete (MRAC) is calibrated using nanoindentation test results. The complete stress–strain curves, cracking process, and failure pattern of the numerical model are verified by the experimental results, proving their accuracy and validation. The initiation, growth, interaction, coalescence of microcracks, and subsequent macroscopic failure of the MRAC specimen are captured through DEM numerical simulations and compared with digital image correlation (DIC) results. The typical cracking modes controlled by meso-structures of MRAC are concluded according to numerical observations. A parameter study indicates the dominant influence of the macroscopic mechanical behaviors from the shear strength of the interfacial transition zones (ITZs).
Mechanical Strengths and Microstructures of Recycled Aggregate Concrete Incorporating Nanoparticles
Publisher: ASTM International
Date: 25-04-2018
DOI: 10.1520/ACEM20160078
Mechanical performance of CFRP-confined sustainable geopolymeric recycled concrete under axial compression
Publisher: Elsevier BV
Date: 12-2020
Fatigue models for airfield concrete pavement: Review and discussion
Publisher: CRC Press
Date: 25-11-2021
An empirical model for the shear strength of corroded reinforced concrete beam
Publisher: Elsevier BV
Date: 11-2018
Prediction of engineering properties of fly ash-based geopolymer using artificial neural networks
Publisher: Springer Science and Business Media LLC
Date: 13-12-2019
Early-age shrinkage development of ultra-high-performance concrete under heat curing treatment
Publisher: Elsevier BV
Date: 2017
Effects of saturation degrees, freezing-thawing, and curing on geotechnical properties of lime and lime-cement concretes
Publisher: Elsevier BV
Date: 04-2019
Synergistic Effects of Polypropylene and Glass Fiber on Mechanical Properties and Durability of Recycled Aggregate Concrete
Publisher: Springer Science and Business Media LLC
Date: 28-07-2020
DOI: 10.1186/S40069-020-00411-2
Abstract: To better understand the synergistic effects of combined fibers on mechanical properties and durability of recycled aggregate concrete (RAC), different types of fibers with various lengths and mass ratios were adopted in this study. Experimental investigations were conducted to study the 28-day compressive strength and strength loss after exposed to salt-solution freeze–thaw cycles and the coupled action of mechanical loading and salt-solution freeze–thaw cycles. The microstructure was also characterized to evaluate the mechanism of this synergistic effect. To determine the effectiveness of the combined fibers on improving the mechanical properties and durability of RAC, the synergistic coefficient was proposed and applied for various combinations of fibers. The results indicate that the incorporation of fibers slightly decreased the 28-day compressive strength of RAC, but combining different sizes and types of fibers can mitigate this negative effect. Moreover, the incorporation of fibers greatly improves the freeze–thaw resistance of RAC. The combining different fibers exhibited a synergistic effect on the enhancement in properties of RAC, which could not be predicted with only one simplistic rule of fibre mixtures. In addition, microstructural characterization shows that the bonding strength of the interfacial transition zone (ITZ) between the fiber and cement matrix is mainly determined by the chemical bonding force which is due to the hydration reaction between fiber surface and cement matrix.
Utilising CO2 technologies for recycled aggregate concrete: A critical review
Publisher: Elsevier BV
Date: 07-2020
Effects of Nanoalumina and Graphene Oxide on Early-Age Hydration and Mechanical Properties of Cement Paste
Publisher: American Society of Civil Engineers (ASCE)
Date: 09-2017
Comparative investigation on nanomechanical properties of hardened cement paste
Publisher: Springer Science and Business Media LLC
Date: 22-03-2015
Self-healing efficiency and crack closure of smart cementitious composite with crystalline admixture and structural polyurethane
Publisher: Elsevier BV
Date: 11-2020
Applying grid nanoindentation and maximum likelihood estimation for N-A-S-H gel in geopolymer paste: Investigation and discussion
Publisher: Elsevier BV
Date: 09-2020
Investigation on effect of nanosilica dispersion on the properties and microstructures of fly ash-based geopolymer composite
Publisher: Elsevier BV
Date: 05-2021
Development of novel ultra-high performance concrete: From material to structure
Publisher: Elsevier BV
Date: 03-2017
Effects of graphene oxide agglomerates on workability, hydration, microstructure and compressive strength of cement paste
Publisher: Elsevier BV
Date: 08-2017
Conductivity and piezoresistivity of nano-carbon black (NCB) enhanced functional cement-based sensors using polypropylene fibres
Publisher: Elsevier BV
Date: 07-2020
Piezoresistivity enhancement of functional carbon black filled cement-based sensor using polypropylene fibre
Publisher: Elsevier BV
Date: 08-2020
Autogenous and total shrinkage of limestone calcined clay cement (LC3) concretes
Publisher: Elsevier BV
Date: 2022
Progress in manufacture and properties of construction materials incorporating water treatment sludge: A review
Publisher: Elsevier BV
Date: 06-2019
Experimental Investigation on Quantitative Nanomechanical Properties of Cement Paste
Publisher: American Concrete Institute
Date: 04-2015
DOI: 10.14359/51686986
Performance deterioration of fly ash/slag-based geopolymer composites subjected to coupled cyclic preloading and sulfuric acid attack
Publisher: Elsevier BV
Date: 10-2021
Development of piezoresistive cement-based sensor using recycled waste glass cullets coated with carbon nanotubes
Publisher: Elsevier BV
Date: 09-2021
Deep learning for efficient stochastic analysis with spatial variability
Publisher: Springer Science and Business Media LLC
Date: 30-08-2022
Investigation on dispersion of graphene oxide in cement composite using different surfactant treatments
Publisher: Elsevier BV
Date: 02-2018
Reinforcement effects of polyvinyl alcohol and polypropylene fibers on flexural behaviors of sulfoaluminate cement matrices
Publisher: Elsevier BV
Date: 04-2018
A novel optimised self-learning method for compressive strength prediction of high performance concrete
Publisher: Elsevier BV
Date: 09-2018
Intrinsic graphene/cement-based sensors with piezoresistivity and superhydrophobicity capacities for smart concrete infrastructure
Publisher: Elsevier BV
Date: 2022
A comprehensive review on self-sensing graphene/cementitious composites: A pathway toward next-generation smart concrete
Publisher: Elsevier BV
Date: 05-2022
An overview of study on recycled aggregate concrete in China (1996–2011)
Publisher: Elsevier BV
Date: 06-2012
Durability of recycled aggregate concrete under coupling mechanical loading and freeze-thaw cycle in salt-solution
Publisher: Elsevier BV
Date: 02-2018
Corrigendum to “Effects of graphene oxide agglomerates on workability, hydration, microstructure and compressive strength of cement paste” [Constr. Build. Mater. 145 (2017) 402–410]
Publisher: Elsevier BV
Date: 08-2018
Mechanical and Conductive Properties of Smart Cementitious Composites with Conductive Rubber Crumbs
Publisher: Engineered Science Publisher
Date: 2020
DOI: 10.30919/ESMM5F711
Structural response monitoring of concrete beam under flexural loading using smart carbon black/cement-based sensors
Publisher: IOP Publishing
Date: 04-05-2020
Study on shape-stabilised paraffin-ceramsite composites with stable strength as phase change material (PCM) for energy storage
Publisher: Elsevier BV
Date: 07-2023
Current progress on nanotechnology application in recycled aggregate concrete
Publisher: Informa UK Limited
Date: 23-12-2018
An experimental study of aggregate shape effect on dynamic compressive behaviours of cementitious mortar
Publisher: Elsevier BV
Date: 10-2021
Crack Propagation in Recycled Aggregate Concrete under Uniaxial Compressive Loading
Publisher: American Concrete Institute
Date: 2012
DOI: 10.14359/51683920
Physicochemical and Piezoresistive properties of smart cementitious composites with graphene nanoplates and graphite plates
Publisher: Elsevier BV
Date: 06-2021
Integrated self-sensing and self-healing cementitious composite with microencapsulation of nano-carbon black and slaked lime
Publisher: Elsevier BV
Date: 2021
Performance evaluation of asphalt binder and mixture modified by pre-treated crumb rubber
Publisher: Elsevier BV
Date: 2023
Sustainable High-Performance Hydraulic Concrete
Publisher: MDPI AG
Date: 09-01-2022
DOI: 10.3390/SU14020695
Abstract: Concrete has always been indispensable as a material for the engineering and construction of hydraulic structures (e [...]
Novel experimental and numerical investigations on bonding behaviour of crack interface in smart self-healing concrete
Publisher: IOP Publishing
Date: 25-06-2020
Numerical Discrete-Element Method Investigation on Failure Process of Recycled Aggregate Concrete
Publisher: American Society of Civil Engineers (ASCE)
Date: 2019
Empirical model of corrosion rate for steel reinforced concrete structures in chloride-laden environments
Publisher: SAGE Publications
Date: 27-06-2018
Abstract: The corrosion rate of reinforcing steel is an important factor to determine the corrosion propagation of reinforced concrete structures in the chloride-laden environments. Since the corrosion rate of reinforcing steel is affected by several coupled parameters, the efficient prediction of which remains challenging. In this study, a total of 156 experimental data on corrosion rate from the literature were collected and compared. Seven empirical models for predicting the corrosion rate were reviewed and investigated using the collected experimental data. Based on the investigations, a new empirical model is proposed for predicting the corrosion rate in corrosion-affected reinforced concrete structures considering parameters including concrete resistivity, temperature, relative humidity, corrosion duration and concrete chloride content. The comparison between the experimental data and those predicted using the new empirical model demonstrates that the new model gives a good prediction of the corrosion rate. Furthermore, the uncertainty and probability characteristics of these empirical models are also investigated. It is found that the probability distributions of the model errors can be described as lognormal, normal, Weibull or Gumbel distributions. As a result, the new empirical model can provide an efficient prediction of the corrosion rate of reinforcing steel, and the model error analysis results can be utilized for reliability-based service life prediction of reinforced concrete structures under chloride-laden environments.
Utilization of recycled aggregate in geopolymer concrete development: A case study
Publisher: Elsevier
Date: 2021
Improving industrial drying process of recycled fine aggregates as a means of carbonation to improve the mechanical properties and plastic shrinkage of self-leveling mortar
Publisher: Elsevier BV
Date: 11-2023
Effect of chloride ingress on self-healing recovery of smart cementitious composite incorporating crystalline admixture and MgO expansive agent
Publisher: Elsevier BV
Date: 2021
Phase transformation and microstructure of in-situ concrete after 20-year exposure to harsh mining environment: A case study
Publisher: Elsevier BV
Date: 12-2023
Research progress in advanced nanomechanical characterization of cement-based materials
Publisher: Elsevier BV
Date: 11-2018
A comprehensive review on performance of cementitious and geopolymeric concretes with recycled waste glass as powder, sand or cullet
Publisher: Elsevier BV
Date: 09-2021
Application of intrinsic cement-based sensor for traffic detections of human motion and vehicle speed
Publisher: Elsevier BV
Date: 11-2022
Efficient reliability analysis considering uncertainty in random field parameters: Trained neural networks as surrogate models
Publisher: Elsevier BV
Date: 08-2021
Effects of the hydration reactivity of ultrafine magnesium oxide on cement-based materials
Publisher: Thomas Telford Ltd.
Date: 11-2017
Abstract: The size of magnesium oxide may greatly affect its behaviour in cement-based materials (CBMs), and this has not been fully investigated. The reactivity of ultrafine magnesium oxide (UFM) of size 40 nm to 20 μm was assessed, and its effects on the compressive strength and volume stability of cement mortar were investigated. The results showed that the hydration of UFM followed the first-order reaction mode in the first 3 d and then slowed down due to the alteration of the reaction to the diffusion-controlled mode. UFM contributed to an increase in compressive strength and a decrease in shrinkage of CBMs at the very early age, but hindered the hydration of cement at later ages, coarsened the microstructure, and decreased the later-age shrinkage to a much smaller extent than normal light-burnt magnesium oxide. The relatively high hydration reactivity of UFM may contribute to the formation of a more compact gel structure around cement particles at the very early age, which may hinder the reaction of cement at later ages, thus leading to the slowed property gain of CBMs at later ages. The findings from this study may help in the selection of magnesium oxide types for achieving a desired CBM with certain properties.
Synthesis of Quaternary Hydrotalcite-Carbon Nanotube Composite and Its Sulfate Adsorption Performance in Cement Paste
Publisher: American Society of Civil Engineers (ASCE)
Date: 11-2023
Challenges in current construction and demolition waste recycling: A China study
Publisher: Elsevier BV
Date: 12-2020
Effect of slag on the mechanical properties and bond strength of fly ash-based engineered geopolymer composites
Publisher: Elsevier BV
Date: 05-2019
Nanoindentation on micromechanical properties and microstructure of geopolymer with nano-SiO2 and nano-TiO2
Publisher: Elsevier BV
Date: 03-2020
A Review on Durability of Alkali-activated System from Sustainable Construction Materials to Infrastructures
Publisher: Engineered Science Publisher
Date: 2020
DOI: 10.30919/ESMM5F204
Mechanical behavior of recycled aggregate concrete-filled steel tube stub columns after exposure to elevated temperatures
Publisher: Elsevier BV
Date: 08-2017
Effects of nanoparticle on the dynamic behaviors of recycled aggregate concrete under impact loading
Publisher: Elsevier BV
Date: 12-2016
Dispersion of graphene oxide agglomerates in cement paste and its effects on electrical resistivity and flexural strength
Publisher: Elsevier BV
Date: 09-2018
High temperature resistance of fly ash/GGBFS-based geopolymer mortar with load-induced damage
Publisher: Springer Science and Business Media LLC
Date: 08-2020
Effect of Cyclic Loading Deterioration on Concrete Durability: Water Absorption, Freeze-Thaw, and Carbonation
Publisher: American Society of Civil Engineers (ASCE)
Date: 09-2018
Nanoscratch on mechanical properties of interfacial transition zones (ITZs) in fly ash-based geopolymer composites
Publisher: Elsevier BV
Date: 09-2021
Microstructure and thermal analysis of APS nano PYSZ coated aluminum alloy piston
Publisher: Elsevier BV
Date: 2020
Physical-mechanical properties of fly ash/GGBFS geopolymer composites with recycled aggregates
Publisher: Elsevier BV
Date: 11-2019
Development of sustainable concrete incorporating seawater: A critical review on cement hydration, microstructure and mechanical strength
Publisher: Elsevier BV
Date: 08-2021
Piezoresistive behaviours of carbon black cement-based sensors with layer-distributed conductive rubber fibres
Publisher: Elsevier BV
Date: 11-2019
A lightweight composite bridge deck system
Publisher: CRC Press
Date: 27-05-2014
DOI: 10.1201/B17063-215
Mechanical properties of multi-recycled aggregate concrete under combined compression-shear loading
Publisher: Elsevier BV
Date: 2023
Mechanical strength and self-sensing capacity of smart cementitious composite containing conductive rubber crumbs
Publisher: SAGE Publications
Date: 05-05-2020
Abstract: The effects of conductive rubber crumbs on the mechanical properties and self-sensing capacities of cementitious composites are investigated in this study. The rubberized cementitious composites with five different contents of conductive rubber crumbs are incorporated, ranging from 0%, 10%, 20%, 30% and 40% by mass of fine aggregate. Under the uniaxial cyclic compression, all the conductive rubber crumbs–filled cement composites exhibit excellent repeatability of piezoresistivity. The mortar with 20% conductive rubber crumbs at a water-to-binder ratio of 0.42 displayed the best piezoresistive sensitivity. Based on the relative positions of conductive rubber crumbs in the rubberized cement mortar, three conductive mechanisms were proposed for the conductive rubber crumbs, including complete isolation state, neighbouring state and the contact state. The isolation state plays a dominant role when the content of the conductive rubber crumbs is low, in which the piezoresistive behaviour is mainly controlled by the resistivity changes in cement matrix. In the neighbouring state, pores or voids in the gaps between nearby conductive rubber crumbs make the conductive rubber crumbs easier to connect, thus decreasing the resistivity under uniaxial compression. As for the contact state, the decreased contact resistance and the absence of sand between conductive rubber crumbs lead to higher resistivity changes under cyclic compression. The related results indicate that conductive rubber crumbs in cement mortar have application potentials for structural health monitoring.
CO2 concrete and its practical value utilising living lab methodologies
Publisher: Elsevier BV
Date: 07-2021
Electrical resistivity and mechanical properties of cementitious composite incorporating conductive rubber fibres
Publisher: IOP Publishing
Date: 07-2019
Piezoresistive properties of cement-based sensors: Review and perspective
Publisher: Elsevier BV
Date: 04-2019
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