摘要
对不同干湿循环次数后的棉花秸秆纤维水泥土进行了无侧限抗压实验和扫描电镜分析,结果表明:干湿循环的过程中纤维在水泥土强度的提高和降低的过程中均发挥了一定的作用;对于纤维加筋水泥土,在养护早期(7 d左右)进行一段时间的干湿循环可以有效加速水泥的水化反应,缩短养护时间。
The application of fiber cement soil has been studied,but there are few reports on its strength change and mechanism under external wet and dry conditions.In this paper,the cotton straw fiber cement soil after different number of wet and dry cycles is subjected to unconfined compression and scanning electron microscopy.The conclusions are as follows:during the wet-dry cycle,the fiber plays a certain role in the increase and decrease of the strength of the cement soil;for the fiber-reinforced cement soil,dry and wet for a period of time in the early curing period(about 7 days),the circulation can effectively accelerate the hydration reaction of the cement and shorten the curing time.
作者
李永彬
殷勇
刘铁
Li Yongbin;Yin Yong;Liu Tie(Yancheng Institute of Technology,Yancheng,Jiangsu 224001,China;East China Regional Company of Galaxy Real Estate,Nanjing,Jiangsu 210000,China)
出处
《绿色科技》
2020年第12期191-194,共4页
Journal of Green Science and Technology
基金
江苏省交通运输厅公路局项目(编号:2017-28)
盐都区科技成果转化项目2018年35号
江苏省住房和城乡建设厅科技项目(编号:2019ZD001027)。
关键词
棉花秸秆纤维
加筋土
干湿循环
纤维降解
cotton straw fiber
reinforced soil
dry-wet cycle
fiber degradation
