SELF-COMPACTING HIGH STRENGTH RECYCLED AGGREGATE CONCRETE FOR SUSTAINABLE CONSTRUCTION
Concrete for sustainable construction of civil engineering infrastructures is required to use a reduced amount of environmentally unfriendly Portland cement. The sustainability of concrete is increased when the energy and manpower needs on placing of concrete are minimized. With an intension of improving both the environmental and economical sustainability, an experimental investigation on the production and properties of high-strength selfcompacting concrete mixes with reduced cement content and using recycled concrete coarse aggregate. The binder materials used is a combination of Portland cement and very-fine ground granulated blast furnace slag and the coarse aggregate was either natural or recycled concrete. The compressive strength, tensile strength, modulus of elasticity and chloride permeability for the high strength concrete mixes were determined using standard tests at various ages. The results showed that high strength self-compacting concrete with about 30% cement replacement with ultra fine slag can be produced and the use of recycled concrete aggregate reduced the strengths, elastic modulus and increased chloride permeability.
Rasiah Sriravindrarajah Chng Xian Ming Pek Qia Quan
School of Civil & Environmental Engineering,Nanyang Technological University,Singapore School of Civ School of Civil & Environmental Engineering,Nanyang Technological University,Singapore
国际会议
厦门
英文
709-714
2011-10-28（万方平台首次上网日期，不代表论文的发表时间）