Gammon Construction Limited
SCA 2020 Contractor in RMAA Works- Silver Award
These complex A&A works were carried out during live use of the existing building. The project adopted slab saw cut, a quiet and pollution-minimising method during demolition, which greatly boosted the recycling rate. Low-carbon concrete and B5 biodiesel were utilized in the project to reduce the carbon footprint; while DfMA was applied to reduce energy consumption and waste generation through off-site pre-fabrication of structural steel works.
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Shortened construction time, reduced waste generation and energy consumption by fabricating all structural steel works off-site and adopting bolt and nut connection instead of traditional welding for most trusses.
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Used environmentally-friendly materials like B5 biodiesel and concrete with CIC Green Product Certification; avoided timber use with permanent Bondek formwork. Besides a concrete sensor was applied to measure the change with data upload to cloud for quality monitoring and analysis.
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BIM was applied in design and coordination. The model was fed into Computer Numerical Control machine in curtain wall production, which ensured high accuracy and controlled wastage within 2%.