INVESTIGATION ON STRENGTH PROPERTIES OF HIGH PERFORMANCE CONCRETE BY USING GGBS AND CRUSHED ROCK POWDER

Abstract

In the engineering industry, the improvement of existing materials allow for technological advancement and the construction of more reliable structures without over design. A High performance concrete is something which demands much higher performance from concrete as compared to performance expected from routing concrete. Use of chemical admixtures reduces the water content, thereby reducing the porosity within the hydrated cement paste. Mineral admixtures also called as cement replacement material (CRM) such as fly ash, rice husk ash, ground granulated blast furnace slag ,Met kaolin, silica fume are more commonly used in the development of High-performance mixes, act as pozzolanic materials as well as fine fillers, thereby the microstructure of hardened cement matrix becomes denser and strong. High performance concrete (HPC), a widely utilized material in heavy structural constructions. This paper gives the characteristics of HPC, the study of influence of water-binder ratio and the influence of strength.
High performance concrete (HPC) is a concrete meeting special combinations of performance and uniformity and normal mixing. This leads to examine the admixtures to improve to improve the performance of the concrete. On the other side, cost of concrete is attributed to the cost of its ingredients which is scarce and expensive, this leading to usage of economically alternative materials in the production. This requirements is drawn the attention of investigators to explore new replacements of ingredients of concrete.
This paper deals with the effective utilization of waste material in concrete production as a partial replacement for Cement and sand. The cement has been replaced by GGBS in the range of30%, 40% and 50% by weight of cement, crushed rock powder as sand in the range of 5%, 15% and 25% by weight of cement for M40grademix.