Sustainable Ultra High Performance Cementitious For Rapid Urbanization and Carbon Neutral Mega Construction Projects

The cement concrete industries globally produced about 4.2 billion tons (required processing energy 1,400kWh/ton) and produce 30 billion tons concrete and contribute about 7%global warming effects. Global rapid urbanization, energy demand in buildings will increase 50%, while existing global building floor area 220 billion m² is expected to double by 2050, driving energy demand and related GHG emissions for construction. Thus, the shortcoming of innovative and sustainable cement concrete to bring together the building and construction industry to facilitate the global transition towards for low-emission, energy-efficient buildings to achieving the common objective of limiting global warming to well-below 2 Celsius (2°C). The objective in this study is to use the biomass and industrial waste to produce the Sustainable Ultra High Performance Cementitious (SUHPC) for Carbon Neutral Cement Concrete (CNCC). SUHPC was produced by biohybrid- mechano-chemical activation method. SUHPC performance was evaluated in OPC mortar by replace the OPC from dosage 5% to 100% Mortar prism strength with SUHPC at low dosage series increased the early strength but at high dosage series enhanced the early and ultimate strength of OPC. The produced SUHPC concrete quality strength is performed at high performance concrete (HPC) upto ultra high performance concrete (UHPC) level. The innovative SUHPC has proven here to be useful sustainable technology, increased productivity, durability and social economy benefits for Malaysian and abroad cement concrete plants for some rapid urbanization mega infrastructure projects such as Mega Railway Sleeper KV-Double Track MRT Project, Mega Tunnelling Pahang Water Transfer Projects (PWTP), Mass Rapid Transit (MRT) Project, Sarawak Hydropower Murum Dam and general construction projects. Embodied energy and CO2 emission reduced > 85% and reduced non-renewable materials approaching carbon neutral cement concrete. SUHPC is suitable for rapid urbanization and carbon neutral mega construction projects to provide the innovative sustainable construction materials development and future resilient construction.