Study On Mechanical Properties Of Reactive Powder Concrete

In light of basic composition of Reactive Powder Concrete (RPC),mainly studied are the influence and amelioration effect of polymer on the behaviors of RPC through indoor tests according to the status quo and problems of RPC at home and abroad.Composite high performance cement-based materials is the main way, composite materials are generally used for engineering materials will be distributed in another kind of material, in order to enhance the performance of certain purpose. The former is called a reinforced material, the latter known as the substrate.For concrete, steel reinforced material is the most important, in addition, Composite fiber-reinforced cement-based materials is the most widely used in recent years, the fastest growing of a new reinforced material. The three main roles lie in fiber strength, toughness and resistance to split.Hybrid fiber-reinforced cement-based composite materials is used two or more fibers with different properties and different scales, so that the performance of different scales and levels complement each other, to achieve the purpose of creating high-performance concrete.In this paper, two species different raw material of slag and the fly ash compounds RPC; And the steel fiber, the glass fiber, polypropylene fiber by the way of alone incorporation and mutual miscellaneous which combines the sample, in the mechanical properties test of compressive strength and bending strength. Then collect the data of tests, do analysis and comparison between each other and compare the conclusion of study given by the other literatures, and study the enhanced function of the steel fiber, the glass fiber and the polypropylene fiber to the plain RPC.At present the research work of RPC mechanical properties which incorporation of fiber, the aspect of literature which correlation for enhanced RPC mechanical properties by incorporation of alone fiber or the combination fiber. This paper mainly study on the RPC mechanical properties for incorporation of different raw material and fiber, as possible as obtained should used in practical engineering construction, economy and practical which has optimal combining ratio of RPC.