Analyzing the Filling Ability Property of Self-Compacting Concrete Using Fly Ash and Superplasticizer

Abstract

Self-compacting concrete (SCC) is an innovative concrete which can flow and consolidate under its own weight without any vibration. It can also resist segregation. This kind of concrete is durable and environment friendly. Deformability and stability are also the major characteristics of self-compacting concrete. To achieve such properties, it is essential to develop a method for mix design of SCC. The cost of concrete can be minimized by substituting cement with material like fly ash. Properties of materials have effect on the flow behavior of SCC. Hence it is vital to determine the right quantities of material such that the concrete can flow without segregation. This paper presents an experimental course of actions for the investigation of filling ability property of self-compacting concrete. Nine trial mixes have been conducted in order to upgrade the flow value as well as flow time and the interaction between fine aggregate, coarse aggregate, cement, fly ash as well as superplasticizer has been closely observed. The high flowability is attained by exchanging cement with fly ash at different percentages along with varying superplasticizer content. Flowability is a means for a concrete’s filling ability which is determined in terms of spread of slump flow by using a slump flow test. The viscosity, measured indirectly by T500 test by visually observing the time required at which concrete spreads. Guidelines given by EFNARC are followed here.