硅灰/耐碱玻璃纤维-聚丙烯混杂纤维ECC力学特性研究  

Research on ECC Mechanical Characterization of Silica Fume/Alkali-Resistant Glass Fiber-Polypropylene BlendsFiber

作　　者：马立军[1] 张博超 苟维光 张云龙[1] MA Lijun;ZHANG Bochao;GOU Weiguang;ZHANG Yunlong(Jilin Jianzhu University,Changchun Jilin 130118,China;Jilin Jianda Engineering&Technical Services Co.,Ltd.,Changchun Jilin 130012,China)

机构地区：[1]吉林建筑大学,吉林长春130118 [2]吉林省建大工程技术服务有限公司,吉林长春130012

出　　处：《北方建筑》2025年第1期47-52,共6页Northern Architecture

基　　金：吉林省科学技术厅重点研发项目(20230203036SF)。

摘　　要：为了降低工程水泥基复合材料施工成本,本研究以价格相对较低的耐碱玻璃纤维等比例替代聚丙烯纤维,并通过调整硅灰掺量,探讨活性粉末对工程水泥基复合材料性能的影响。通过抗压、抗折和劈拉等试验,研究了不同混杂纤维配比对工程水泥基复合材料性能的影响。研究结果表明:当硅灰掺量为15%时,工程水泥基材料的力学性能提升最为显著,但与硅灰掺量为10%相比,其提升幅度相对较小。因此,在实际使用中,硅灰掺量为10%是最佳选择。当聚丙烯纤维和耐碱玻璃纤维混杂比例为1∶1时,工程水泥基材料的抗压强度最高,而当聚丙烯纤维与耐碱玻璃纤维的混杂比例为1∶3时,其抗折强度和劈裂抗拉强度最高。本研究结果可为后续工程应用提供参考依据。In order to reduce the construction cost of engineering cementitious composites,this study replaces polypropylene fibres with relatively low-priced alkali-resistant glass fibres in equal proportions,and explores the effect of activated powder on the properties of engineering cementitious composites by adjusting the amount of silica fume blending.The effect of different blended fibre ratios on the performance of engineered cementitious composites was investigated by compression test,flexural test and split tensile test.The results of the study show that the mechanical properties of engineered cementitious materials are most significantly improved at 15%silica fume dosing,but the improvement is relatively small compared to 10%silica fume dosing.Therefore,in practice,10%silica fume dosage is the best choice.The compressive strength of the engineered cementitious materials was highest when the mixing ratio of polypropylene fibres and alkali-resistant glass fibres was 1:1,while the flexural strength and split tensile strength were highest when the mixing ratio of polypropylene fibres and alkali-resistant glass fibres was 1:3.The results of this study can provide a reference basis for subsequent engineering applications.

关 键 词：耐碱玻璃纤维 聚丙烯纤维 工程水泥基复合材料 硅灰 

分 类 号：TU528.572[建筑科学—建筑技术科学]