A study on the effect of water-reducing admixtures on the high strength of concrete / Mohd. Hizard Abd. Rani

Increasing demands for good quality concrete with better durability properties has focus interest on high strength concrete. Most countries have their own programmes to develop high strength concrete. Strength is primarily a function of the porosity of the cementing matrix, the lower the porosity .the higher the strength will be.Thus to achieve very high strength concrete ,the porosity of the paste and the water to binder ratio must be reduced as much as possible^ the same time complete compaction must be maintained . Concrete is a composite material and many variations are possible when choosing its two major components, their deformation properties and the adhesion between the paste and aggregate surface.