Experimental Investigation on Hempcrete

Abstract

Concrete is an important construction material consisting of cement, sand and aggregate such as gravel or crushed rock, mixed with water. The most commonly used cement is Portland cement. The cement and water form a paste or gel which coast the sand and aggregate. When the cement has chemically reacted with the water, it hardens and binds the whole mix together; Fine and coarse aggregate make up the bulk of a concrete mixture. Manufactured sand is an alternative for river sand. Due to fast growing construction industry, the demand for sand has increased tremendously; causing deficiency of suitable river sand is most part of the word. Plain cement concrete is good at providing reasonable compressive strength but it tends to be brittle is nature and is weak in tensile strength and minimum resistance to cracking, poor toughness to overcome the concrete. In the present study of Hempfibre are used with conventional concrete. The combining of fibre s, often called hybridization. There is a growing awareness of the advantages of the advantages of fibre reinforcement techniques of construction all over the world. In the recent time there is a growing interest on the use of various type of fibre in structural applications. Experimental and analysis of results were conducted to study the compressive, tensile and flexural behavior of composite concrete with varying percentage of fibres added to it. The M20 grade of concrete is adopted with varying percentage of fibres ranging from 0.2%, 0.4%, 0.6%, and 0.8% on different characteristic of fibre are used in all construction.