Research and Application Progress of Straw

High performance concrete is widely used in research and Engineering, the research progress of high performance concrete admixture is very rapid. The straw ash base contains a large amount of silica, it has certain pozzolanic activity, it is an excellent material to replace some cement and reduce the amount of cement used. However, the residual carbon particles and alkali metals in the straw ash affect the performance of the ash based mixture. In this paper, the effects of pretreatment on straw ash base and the effect of pretreatment on the mechanical properties of concrete were discussed by literature review. The results show that the pretreated straw ash base has better performance, and the prepared high performance concrete also has better properties. Therefore, straw ash as a concrete admixture has broad development areas.