Status and development of EPS granules concrete modification
EPS granules concrete is an environmental-friendly and lightweight cement.granules concrete modification techniques can improve the strength and performance of EPS granules concrete.First,it divides the techniques into two categories:EPS granules modifica-tion and cementitious material modification,respectively,and discusses the characteristics,cons and pros of those modification techniques in detail.Second,based on the discussion of those modification techniques,it propose a composite modification method that can take ad-vantage of both EPS granules modification and cementitious material modification.Finally,the shortcoming of the existing techniques are presented,and the future development is advised.The conclusions are as follows.particle modification techniques include chemical modifi-cation,sand coating and shelling coating.Cementitious material modification includes fiber modification,admixture method and additives method.Composite modification can effectively improve the strength,but is complex and needs further research.In the future,nanoparticle modification,EPS ceramic modification,and phase change material are the costly trend of modification techniques,where it is urgent to re-duce costs.It can provide a reference for the development of high-performance EPS granules concrete,which has certain reference value.
EPS granules concreteEPS granules modificationcementitious material modificationcomposite modification
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