ORCID Profile
0000-0002-4393-6728
Current Organisations
Beirut Arab University
,
University of Wolverhampton
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Publisher: Emerald
Date: 16-08-2013
Abstract: The first paper, entitled “The perception of tenants in the refurbishment of tower blocks” ( Facilities , Vol. 31, No. 3/4), argued that refurbishment was the best option that a local authority could undertake to improve tower blocks. The study also found that refurbishment maintained local communities by keeping families together and sustained the environment. This paper aims to present and examine similar views from the contractor's and landlord's representatives on several aspects affecting the refurbishment process A literature review is used to identify the perceived problems and benefits of refurbishment. A qualitative approach comprising semi structured interviews and questionnaires was used to collect data from three contractors or service providers of the refurbishment process and two landlords' representatives, namely the clerk of works drawn from the housing association. The s le data are analysed using frequency analysis and content analysis. Refurbishment as opposed to demolition was identified as a viable option for achieving sustainability. There were some ergent views among the respondents concerning the achievements to be gained from refurbishments. The project managers identified “client satisfaction”, and “within budget and time”. The senior site manager chose “a better way of life” and “improved security”. The quantity surveyor opted for “profit‐oriented”, finally, “provision of decent homes at affordable prices” was identified by the senior clerk of works. The knowledge of the council funding mechanisms for refurbishment works among the respondents ranged from adequate to ideal. The contractor's representatives exhibited limited knowledge. The findings of the study provide practical value for contractor's and landlord's (housing association) representatives within the construction industry confronted with the decision of whether to undertake some refurbishment works. Some lessons learned could also improve the housing stock or asset management strategies for the landlord's representatives. The paper is original in the sense that it identifies how the contractor's and landlord's (housing association) representatives as drawn from different professional background rate the reasons, benefits, and practicalities of undertaking refurbishment works of tower blocks or high rise buildings. The study also provides some insights on the contractor's and landlord's (housing association) representative's knowledge and awareness of sustainable development, and councils' funding mechanisms for undertaking refurbishment works.
Publisher: Emerald
Date: 22-02-2013
Publisher: CRC Press
Date: 03-09-2008
Publisher: Informa UK Limited
Date: 27-01-2022
Publisher: MDPI AG
Date: 29-10-2020
DOI: 10.3390/ENVIRONMENTS7110096
Abstract: The behavior of reinforced concrete beams containing fibers made of waste plastic straws (WPSs) under the three point bending test is examined. The effect of WPS fiber addition on the compressive and split tensile strength is reported. Four concrete mixes were prepared. The control mix PS-0 had a proportion of 1 cement: 1 sand: 2 coarse aggregate and a water cement ratio of 0.4. In the other three mixes PS-0.5, PS-1.5 and PS-3, 0%, 0.5%, 1.5% and 3% of WPS fiber (by volume) was added respectively. The results show that at 0.5% WPS, there is slight increase in compressive strength. However, beyond 0.5% addition, a decrease in compressive strength is observed. The split tensile strength shows a systematic increase with the addition of WPS fibers. The reinforced concrete beams containing WPS fibers show higher ductility as demonstrated by the larger ultimate tensile strain and ductility index (Δu/Δy). There is a tendency to have more fine cracks with the presence of WPS fibers.
Publisher: Emerald
Date: 05-06-2007
DOI: 10.1108/17260530710833202
Abstract: The purpose of this paper is to investigate the antecedents and benefits of 3D and 4D modelling as a construction planning tool in the construction process, and examine why it is not being implemented throughout the construction industry. A survey of the literature, questionnaire survey, and a case study including interviews and observations were used to conduct the study. The findings are investigated using appropriate statistical tests. This study shows that using 4D modelling will benefit the industry once the lack of confidence amongst contractors, design teams and clients has been overcome. Eventually design teams will provide 3D models, but in the interim contractors wishing to receive the benefits of this technology are using modellers to produce these 3D models which planners can then manipulate to display their construction schedule as a 4D model. Attitude, lack of continuity of similar work, and lack of knowledge rather than cost of producing 4D models are identified as the main barriers impacting on the deployment of this technology among the construction planners. The preferred mode of communicating 3D and 4D awareness was via presentation, whereas the least ranked was through articles. The cross‐sectional data would make it difficult to generalise the findings. This technology will provide many benefits to the planning role, resulting in a much more thoroughly planned project which will in turn improve health and safety, shorten contract periods, improve quality and reduce costs. Furthermore, the results have provided a new series of issues and concepts that can help to develop the technology further. The paper explains how this technology can benefit the planning role. The deployment of the technology results in costs reduction during the construction period and impacts on the securing of future work. The paper stresses that the planner should be involved in the process of adding the 4D modelling to a 3D model.
Publisher: Elsevier BV
Date: 02-2020
Location: United Kingdom of Great Britain and Northern Ireland
Location: United Kingdom of Great Britain and Northern Ireland
Location: United Kingdom of Great Britain and Northern Ireland
Location: United Kingdom of Great Britain and Northern Ireland
Location: United Kingdom of Great Britain and Northern Ireland
Location: United Kingdom of Great Britain and Northern Ireland
No related grants have been discovered for Jamal Khatib.