Mixed Mode Torsion-Shear-Bending Failure in SFRC Elements . In 2017 and 2018 the Australian Standards for the design of concrete bridges and structures were released; these are some of the first in the world, to include design procedures for steel fibre reinforced concrete (SFRC) in a comprehensive way. While rules have been introduced for shear and bending of SFRC girders, the rules exclude the use fibres to carry torsional moments. This study investigates the torsion-bending-shear interaction ....Mixed Mode Torsion-Shear-Bending Failure in SFRC Elements . In 2017 and 2018 the Australian Standards for the design of concrete bridges and structures were released; these are some of the first in the world, to include design procedures for steel fibre reinforced concrete (SFRC) in a comprehensive way. While rules have been introduced for shear and bending of SFRC girders, the rules exclude the use fibres to carry torsional moments. This study investigates the torsion-bending-shear interaction performance of SFRC members. The study will provide vital data needed for for adoption by engineers and Standards bodies.Read moreRead less
Functionally Graded Ultra High Perfomance Concete Structure under Flexure. This project aims to develop a novel multilayer functionally graded concrete structure that is a mixture of normal strength concrete and ultra high performance concrete with the mixing ratio varying in a layer-wise manner, offering a highly cost-effective structural design solution with significantly improved safety and durability over conventional concrete structures. The expected outcomes include the innovative design, ....Functionally Graded Ultra High Perfomance Concete Structure under Flexure. This project aims to develop a novel multilayer functionally graded concrete structure that is a mixture of normal strength concrete and ultra high performance concrete with the mixing ratio varying in a layer-wise manner, offering a highly cost-effective structural design solution with significantly improved safety and durability over conventional concrete structures. The expected outcomes include the innovative design, experimental data on the static and dynamic structural behaviour, development of reliable simulation techniques and optimal design procedures for the proposed structure with greatly reduced material costs. The project will have huge benefits to Australian civil engineering industry and national economy.
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Damage Tolerance Approach in Designing and Maintaining Truck Trailers. This project aims to develop a damage tolerance approach in designing and maintaining truck trailers. Combined with field test and computational simulation, machine learning will be used to generate loading spectrums. Following the damage tolerance philosophy, a mature approach in aerospace industry, the fatigue crack growth and the fatigue life will be predicted. In addition, structural optimisation will be applied in traile ....Damage Tolerance Approach in Designing and Maintaining Truck Trailers. This project aims to develop a damage tolerance approach in designing and maintaining truck trailers. Combined with field test and computational simulation, machine learning will be used to generate loading spectrums. Following the damage tolerance philosophy, a mature approach in aerospace industry, the fatigue crack growth and the fatigue life will be predicted. In addition, structural optimisation will be applied in trailer design. This project expects to revolutionize the design and maintenance practices in Australian truck trailer industry. It should provide significant benefits, such as prolonging the life cycle of truck trailers, reducing the tare weight and increasing operating profit, to both trailer producers and users.Read moreRead less
Improving road network operations under non-recurrent events. This project aims to develop an innovative approach for improving Road Network Operations (RNO) under non-recurrent events through analysis of big data and images. The outcomes of this project can not only improve the mobility of people, but also provide improved safety outcomes for all users of the transport network. It will help optimise traffic control strategies and traffic designs, reduce the maintenance cost for road infrastruc ....Improving road network operations under non-recurrent events. This project aims to develop an innovative approach for improving Road Network Operations (RNO) under non-recurrent events through analysis of big data and images. The outcomes of this project can not only improve the mobility of people, but also provide improved safety outcomes for all users of the transport network. It will help optimise traffic control strategies and traffic designs, reduce the maintenance cost for road infrastructure and improve quality of life.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE190100646
Funder
Australian Research Council
Funding Amount
$408,000.00
Summary
Active rheology control of fresh concrete using responsive additives. This project aims to investigate innovative techniques for Active Rheology Control (ARC) of concretes using responsive additives interacting with externally applied electromagnetic or temperature signals. ARC is a new concept which will revolutionise concrete pumping by overcoming limitations such as frequent pipe blockages. ARC will also be useful to solve the major barrier faced by 3D concrete printing (3DCP) from becoming a ....Active rheology control of fresh concrete using responsive additives. This project aims to investigate innovative techniques for Active Rheology Control (ARC) of concretes using responsive additives interacting with externally applied electromagnetic or temperature signals. ARC is a new concept which will revolutionise concrete pumping by overcoming limitations such as frequent pipe blockages. ARC will also be useful to solve the major barrier faced by 3D concrete printing (3DCP) from becoming a practical way of construction. 3DCP is an emerging idea for construction but a major barrier is that concrete needs to flow during pumping and extrusion but become stiff soon after placement. This project will explore ARC for achieving the “flow-on-demand” desired by both concrete pumping and 3DCP applications.Read moreRead less
Shrinkage, cracking, self-healing and corrosion in blended cement concrete. This project aims to investigate the effects of binder quantity and composition on early-age cracking in Australian concretes caused by restrained shrinkage, the subsequent self-healing capability of the cracks, and the possibility of detrimental early chloride induced steel reinforcement corrosion, particularly in marine locations. This project will focus on concrete mix designs and the blends of cement, fly-ash and bla ....Shrinkage, cracking, self-healing and corrosion in blended cement concrete. This project aims to investigate the effects of binder quantity and composition on early-age cracking in Australian concretes caused by restrained shrinkage, the subsequent self-healing capability of the cracks, and the possibility of detrimental early chloride induced steel reinforcement corrosion, particularly in marine locations. This project will focus on concrete mix designs and the blends of cement, fly-ash and blast furnace slag that are prescribed in the revised version of the concrete bridge standard for the most severe exposure. This project will lead to a significant improvement in the serviceability and durability of concrete structures in severe environments.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE210100986
Funder
Australian Research Council
Funding Amount
$425,775.00
Summary
Blast Resistant Interlocking Brick Walls Using Engineered Waste Materials. This project aims to develop a next-generation building system integrated with robotic construction, using intelligent interlocking block units with hazard resistance, and sustainable engineered recycled plastic waste materials. It spans from discovery of using recycled waste materials to development of analysis and design methods for a new interlocking structure, as well as mitigation measures for blast resistance. The s ....Blast Resistant Interlocking Brick Walls Using Engineered Waste Materials. This project aims to develop a next-generation building system integrated with robotic construction, using intelligent interlocking block units with hazard resistance, and sustainable engineered recycled plastic waste materials. It spans from discovery of using recycled waste materials to development of analysis and design methods for a new interlocking structure, as well as mitigation measures for blast resistance. The successful implementation of this project will result in a technically, financially and environmentally sound structure form for the next-generation of robotic construction. This should lead to a revolution in construction that will substantially improve construction efficiency, quality and affordability.Read moreRead less
HyPoCrete: Hydrogen storage using an innovative concrete composite system. This project aims to develop an innovative polymer concrete composite system for the safe and efficient storage of hydrogen. New knowledge is expected to be generated on the novel use of polymer and concrete materials in hydrogen storage technologies. The expected outcomes include a new class of prefabricated, modular storage system that is highly efficient and low cost. The scalability and resilience of the system will b ....HyPoCrete: Hydrogen storage using an innovative concrete composite system. This project aims to develop an innovative polymer concrete composite system for the safe and efficient storage of hydrogen. New knowledge is expected to be generated on the novel use of polymer and concrete materials in hydrogen storage technologies. The expected outcomes include a new class of prefabricated, modular storage system that is highly efficient and low cost. The scalability and resilience of the system will be achieved by using concrete, a material widely used in the construction industry for its mechanical performance, durability and affordability. This should provide significant benefits in fostering the hydrogen economy by providing an efficient and resilient storage system for industrial quantities of hydrogen.Read moreRead less
Investigating the Pumpability and Extrudability of Concrete for 3D Printing. The project aims to develop a new rheological model for 3D printable concrete for construction. 3D concrete printing is an innovative and promising construction technique, but the main impediment to progress is lack of suitable material technology. In this study, a new stress and time dependent flow model will be formulated and implemented as a computational model. The model will facilitate the study of the effect of di ....Investigating the Pumpability and Extrudability of Concrete for 3D Printing. The project aims to develop a new rheological model for 3D printable concrete for construction. 3D concrete printing is an innovative and promising construction technique, but the main impediment to progress is lack of suitable material technology. In this study, a new stress and time dependent flow model will be formulated and implemented as a computational model. The model will facilitate the study of the effect of different concrete formulations, pumping and printer parameters on the primary printing properties, namely, pumpability, extrudability and buildability. The new model will also enable active control and modification of rheological parameters on-the-fly during large-scale printing, which is not currently possible.Read moreRead less
Innovative composite systems with enhanced resilience to extreme loads. The rapidly increasing global population (projected to be 9.8 billion by 2050) and global urbanisation have created a demand for the construction industry, thereby increasing the pressure on our planet’s limited resources for the construction industry. This high demand can yield detrimental effects to the environment due to the high carbon footprint of conventional construction materials, and is amplified by the threat of ac ....Innovative composite systems with enhanced resilience to extreme loads. The rapidly increasing global population (projected to be 9.8 billion by 2050) and global urbanisation have created a demand for the construction industry, thereby increasing the pressure on our planet’s limited resources for the construction industry. This high demand can yield detrimental effects to the environment due to the high carbon footprint of conventional construction materials, and is amplified by the threat of accidental or deliberate extreme loadings to buildings, which can trigger fatal progressive collapse events. The proposed project aims to develop an innovative structural system with that possesses superior structural resilience to extreme loads and progressive collapse using lightweight eco-friendly materials. Read moreRead less