粉煤灰共掺椰壳纤维增韧水泥基材料性能研究  

Study on Properties of Cement-Based Materials with Coir Fiber and Fly Ash

作　　者：黄小琴[1] 文鑫 董奕凌 吴加富 郝普 Huang Xiaoqin;Wen Xin;Dong Yiling

机构地区：[1]三亚学院,海南三亚572011

出　　处：《江苏建材》2023年第3期40-42,共3页Jiangsu Building Materials

基　　金：椰壳纤维增韧轻质水泥基新型复合材料设计与开发研究:海南省高等学校科学研究项目(Hnky2022-42);椰壳纤维增强轻质水泥基复合材料研究:三亚市院地合作项目(2016YD18)。

摘　　要：以水泥、粉煤灰和砂为基体、加入椰壳纤维,制备椰壳纤维增韧水泥基复合材料。研究粉煤灰替代率、椰壳纤维长度对椰壳纤维增韧水泥基复合材料密度、吸水率、含水率、抗压强度以及抗折强度的影响。结果表明:随着椰壳纤维长度的增加,粉煤灰部分替代水泥的椰壳纤维增韧水泥基复合材料的抗折强度不断升高,长纤维的加入有明显增韧作用;较低粉煤灰替代率的椰壳纤维增韧水泥基复合材料的整体密度、抗压强度和抗折强度较高。With cement,fly ash,and sand as substrates,coconut husk fibers are appended to develop coconut husk fiber fortified cement-based composite materials.This paper probes into impacts of fly ash replacement percentage and coconut husk fiber length on properties of the composite materials like density,water absorption,moisture content,compressive strength,and flexural strength.Findings reveal that with increasing coconut husk fiber length,the flexural strength of coconut husk fiber toughened cement-based composite materials where fly ash partly replaces cement persists ascending,and long fiber addition produces an evident strengthening effect.The total density,compressive strength,and flexural strength of coconut husk fiber fortified cement-based composite materials with lower fly ash replacement ratio are superior.

关 键 词：椰壳纤维 纤维长度 水泥基体 粉煤灰 综合性能 

分 类 号：TU502[建筑科学—建筑技术科学]