State of art of mix design theory of reactive powder concrete

The mix proportion of the reactive powder concrete (RPC) dominates its mechanical properties. It is essentially to understand the mix design theory in order to study RPC structures deeply and widen its application. This paper firstly reviewed the mix design theory of the cement-based composites and analysed the critical parameters which had been identified affect the performance of RPC. At present, the mix proportion design of RPC is mainly based on the test method, the semi empirical and semi theoretical formula method and the programming calculation method. But the test method and programming calculation method can not directly predict the strength. Based on the analysis of typical semi empirical and semi theoretical formula, the accuracy of LCPC formula is more accurate, which can be used as a simple strength prediction formula. But the method has not considered the influence of steel fiber content and curing system on the strength.