An experimental study on concrete with partial replacement of fine aggregate by vermiculite and silica fume as a mineral admixture

Abstract

Concrete is the single most widely used construction material in the world. Concrete is used in such large amounts because it is simply, a remarkably good building material. Aggregates generally occupy 60 to 80 percent of the volume of concrete and greatly influence its properties, mix proportions and economy. Use of vermiculite in concrete, enhances the shrinkage and crack resistance, fire resistance and reduces environmental impact and also reduces the cost. Important characteristics of a good quality aggregate include resistance to abrasion, resistance to freeze/thaw action, resistance to sulfates, correct shape and surface texture, proper gradation, density, and compressive and flexural strength. The main purpose of the research is to study the strength parameters such as compressive strength, split tensile & flexural strength of concrete using vermiculite as partial replacement with 10%, 20% and 30% by weight and silica fume (SF) as adding of 5%, 7.5% and 10% by weight of cement. The main aim of this study is to make economical and eco-friendly concrete.