长江科学院院报2012，Vol.29Issue(3)：59-61,71,4.
喷射混凝土的室内检测方法及性能试验研究
Study on Indoor Test Methods and Performance of Shotcrete
摘要
Abstract
By using self-designed indoor test method, the performance of shotcrete were studied by blending nano-additive and crude fiber. The results showed that inorganic nano-additive and crude fiber could improve the com-pressive strength, flexural toughness and crack resistance of shotcrete. Axial bond strength of shotcrete with adjacent rock was larger than 1.0MPa either by doping nano-additive only or both nano-additive and crude fiber. The resilience rates of shotcrete with two mix proportions were 23% and 20% , and the shotcreting thickness were 22cm and 25 cm. Doping both nano-additive and crude fiber can increase the cohesiveness and lower the resilience rate of shotcrete. The self-designed methods can also be used to compare the construction performance of different shotcrete. However, due to limitations of space and test equipment, the resilience rate in indoor test were higher than that in site test. The above test methods and results provided reference for indoor study of shotcrete and the development of technical standards.关键词
喷射混凝土/合成粗纤维/力学性能/与围岩粘结强度/回弹率Key words
shotcrete/crude synthesis fiber/mechanical properties/bond strength with adjacent rock/resilience rate分类
建筑与水利引用本文复制引用
汪在芹,石妍,李家正,闫小虎..喷射混凝土的室内检测方法及性能试验研究[J].长江科学院院报,2012,29(3):59-61,71,4.基金项目
水利部公益性行业科研专项资金项目(200901066) （200901066）
中央级公益性科研院所基本科研业务费(CKSF2011018/CL) （CKSF2011018/CL）
