玻纤增强水泥在提升渠道式水泥切割连续墙抗弯刚度中的运用  

The Application of Glass Fiber Reinforced Cement in Improving the Flexural Rigidity of Channel Cement Cutting Continuous Wall

作　　者：宋永娜 冯春绚 于春红 Song Yongna;Feng Chunxuan;Yu Chunhong(Qingdao Metro Line 1 Co.,Ltd.,Qingdao 266000,China;Beijing Zhongchang Engineering Consulting Co.,Ltd.,Beijing 100021,China)

机构地区：[1]青岛市地铁一号线有限公司,青岛266000 [2]北京中昌工程咨询有限公司,北京100021

出　　处：《粘接》2021年第7期128-132,共5页Adhesion

摘　　要：玻璃纤维增强水泥是近些年来科研人员开发出来的一种新型的复合材料,它具有许多传统建筑用的水泥基体所不具备的优点,如抗弯、抗拉、质轻以及抗冲击等等,文章针对不同摻量的玻璃纤维增强水泥进行了建模分析,通过外加荷载使材料试件发生破坏,进而分析了其破坏的全过程,对各组试件的弯曲韧性、应变能进行了对比研究,最后发现当玻璃纤维增强水泥中的玻璃纤维摻量增加时,其抗弯强度会显著提高,且材料韧性大大增强,由此不难发现,当用更高玻璃纤维摻量的GRC制作建筑构件时,建筑构件的抗弯刚度也会更高,由此得出结论采用玻璃纤维摻量更高的增强水泥制成的连续墙的弯曲刚度更强。Glass fiber reinforced cement is a new type of composite material developed by researchers in recent years.It has many advantages that the traditional cement matrix for building does not have,such as bending resistance,tensile strength,light weight and iMPact resistance,etc.,in this paper,we model and analyze the glass fiber reinforced cement with different dosage,and make the material test pieces break through the external load,and then the whole process of its destruction was analyzed.The bending toughness and strain energy of each group of specimens were coMPared and researched.Finally,it was found that when the content of glass fiber in the glass fiber reinforced cement increases,the flexural strength will be significantly improved,and the material toughness will be greatly enhanced.Therefore,it is not difficult to find that when the GRC with higher content of glass fiber is used to make building components,the flexural rigidity of building components will be significantly improved,which leads to the conclusion that a continuous wall made of reinforced cement with a higher content of glass fiber has stronger flexural rigidity.

关 键 词：玻璃纤维增强水泥 抗弯刚度 弯曲韧性 多相复合材料 

分 类 号：TQ172[化学工程—水泥工业] TU528.58+1[化学工程—硅酸盐工业]