As a new type of green environmental protection building materials,plant fiber reinforced cement-based composites have been favored by many researchers,but there are still many problems.Three main problems in the study of plant fiber reinforced cement-based composites were summarized,namely,the high water absorption of plant fiber,the deterioration of plant fiber and the anticoagulation effect of plant fiber in cement-based composites.The main causes of these problems were analyzed.The common modification methods were listed and the corresponding modification mechanism and research status were described in detail.In the end,the research prospect of plant fiber reinforced cement-based composites was prospected,which provides reference for the resource utilization of plant fiber in the future.
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