Study on Mechanical Properties of Nylon Fibred Reactive Powder Concrete

Abstract

In recent year, there are many types of concrete were used in construction purpose. The reactive powder concrete is one of them. Reactive Powder Concrete (RPC) is a developing composite material that will allow the concrete industry to optimize material use, generate economic benefits, and build structures that are strong, durable, and sensitive to environment. At such a level of strength, the coarse aggregate becomes the weakest link in concrete. In order to increase the compressive strength of concrete even further, the only way is to remove the coarse aggregate. This philosophy has been employed in Reactive Powder Concrete (RPC). RPC is composed of very fine powders (cement, sand, quartz powder and silica fume), steel fibres (optional) and super-plasticizer. The super-plasticizer, used at its optimal dosage, decreases the water to cement ratio (w/c) while improving the workability of the concrete. A very dense matrix is achieved by optimizing the granular packing of the dry fine powders. This compactness gives RPC ultra-high strength and durability. Textile fibre concrete is a type of concrete in which textile fibre is added by various amount in concrete mix to improve its strength and other characteristics.