Steel Reinforced Reactive Powder Concrete

Athulya Sugathan

Quartz powder, Reactive Powder Concrete, silica fume, steel fibers and super plasticizer.

RPC is an emerging technology that lends a new dimension to the term “high performance concrete”. It has immense potential in construction due to superior mechanical and durability properties than conventional high performance concrete, and could even replace steel in some applications. The development of RPC is based on the application of some basic principles to achieve enhanced homogeneity, very good workability, high compaction, improved microstructure and high ductility. RPC has an ultra-dense microstructure, giving advantage of waterproofing and durability characteristics. It could, therefore be a suitable choice for industrial and nuclear waste storage facilities. This paper presents the experimental procedure for the design of self-compacting Reactive Powder Concrete, in which we proposed the mix proportion with the globally acceptance result of all tests and the carried out test are slump flow test and V-funnel test. The mix consists of 85%of cement,15% of silica fume(as a cement replacement material), Fine aggregate(river sand), Quartz powder ,4% superplastizer and varying percentage of steel fibres. The compressive strength, split tensile strength and flexural strength was checked on the 3-day, 7-day and 28-day and results are indicating that the proposed mix can produce self-compacting reactive powder concrete (Ultra High Performance Concrete)with higher quality. Ultra High-performance concretes are made with carefully selected high-quality ingredients and optimized mixture designs; these are batched, mixed, placed, compacted and cured to the highest industry standards. Typically, such concretes will have a low water-cementing materials ratio of 0.20 to 0.45. Super Plasticizers are usually used to make these concretes fluid and workable. Ultra High-performance concrete almost always has a higher strength than high performance concrete.