Investigations on fly ash concrete for pavements

Abstract

The work reported through this paper is an experimental work conducted on High Performance concrete (HPC) with super plasticizer with the aim to report its suitability for concrete pavements. In this study, the effect of varying proportions of fly ash (30% and 40%) on compressive strength of high performance concrete has been evaluated. The mix designs studied were- M30, M40 and M50 to compare the effect of fly ash addition on the properties of these concrete mixes. In all nine concrete mixes have been designed, three as conventional concretes for three grades under discussion and six as HPC with fly ash with varying percentages of fly ash. The concrete mix designing has been done in accordance with Indian standard recommended guidelines i.e. IS: 10262:1982. All the concrete mixes have been studied in terms of compressive strength and flexural strength at 7 days, 28 days and 90 days. All the materials used have been kept same throughout the study to get a perfect comparison of values of results.