Self consolidating concrete mix
Concrete in general consists of cement, water, and aggregates and if not designed and controlled properly, it can adversely affect the structural performance of RC structures due to its heterogeneous nature.One of the most important properties of concrete is its compressive strength.Self-Consolidating Concrete Mix (BOM #110768) is a dry, preblended, one-component, self-consolidating, cementious, polymer-modified concrete mix containing coarse aggregate, silica fume, and an integral migrating corrosion inhibitor.Designed for application thickness minimum of 1" and maximum thickness of 8".
Due to the high workability requirement, guidelines associated with the design of SCC recommended the use of chemical admixtures such as high-range water reducer (HRWR) and viscosity modifying admixtures (VMA) with minimum water content varying between 0.37 and 0.4 (EFNARC ).
However, most of the mixes satisfied SCC fresh properties requirements, including mixes with up to 50 % RAP.
Moreover, several mixes satisfied compressive strength requirement for pavements and bridges, those mixes included relatively high percentages of SCMs and RAP.
One of the relatively new techniques to address concrete placement in congested RC members is using self-consolidating concrete (SCC).
It is a highly workable concrete that can easily flow through heavily RC sections without the need for mechanical vibration.