An Investigation on Utilization of Marble Dust and Rice Husk Ash as Replacement of Cement by Addition of Sisal Fibre

Abstract

Marble waste is one of the most abundant waste materials produced every year. A total of 64trillion tonnes of quarry waste are produced every year. To minimize the waste produced from quarry its byproducts are being used in construction industries. As another major source of wastes, agro based industrial wastes are also utilized in building materials. Rice husk ash is a byproduct obtained after inceneration process and it is a cementitious material. In this investigation marble dust and rice husk ash are used as a replacement for cement. The marble dust is replaced in varying proportions such as 0%,10%,15%,20%,30% in a total replacement of 30% of cement, where in each proportions the remaining percentage is filled by Rice husk ash. Marble dust contains more than 50% of silica oxide in it. Hence the structure built with marble dust are stronger and more durable. Index property and engineering property of the admixtures and materials used were obtained in the laboratory. Along with these admixtures’ sisal fibre with aspect ratio 100 is added as reinforcing agent. It is added in proportion of 0.1% and the additives were also included. The results of the test specimen on 7,14 and 28 days tests are noted down. The compressive strength of the concrete is obtained by using compressive testing machine (CTM), as well as rebound hammer. The test results for destructive and non destructive test results were compared with each other.