SELF-COMPACTING CONCRETE - AN ADVANCED MATERIAL IN CONSTRUCTION TECHNIQUES

Concrete is a widely-used construction component. its widespread use and specifications like durability, quality, compactness and optimization has led researchers to enhance its quality more and turn it into a more revolutionary material which will save time, material and will be eco-friendly, which is nowadays very important. Self-compacting concrete or high strength self-consolidating concrete (S.C.C) is a very fluid concrete and a homogenous mixture that solves most of the problems related to ordinary concrete. Besides, S.C.C gets compacted under its own weight and there is no need for an internal vibrator for the body of the mould. This specification helps the execution of construction components under high compression of reinforcement. high-strength self-consolidating concrete containing high-volumes of fly ash. In this study, Portland cement was replaced by Class C fly ash in the range of 35 to 55 % by the mass of cement. The results of fresh and hardened properties of concrete show that the use of high-volumes of class C fly ash in Self-Consolidating concrete drastically reduces the requirements for superplasticizer (HRWRA) and viscosity modifying agent (VMA) compared with the normal dosage for such admixtures in self-consolidating concrete.