Bond Properties and Experimental Methods of Textile Reinforced Concrete

Textile reinforced concrete(TRC,for short)allows the low size production and offers a high effectiveness of the reinforcement by using continuous roving instead of short-chopped fibers.However, whether textiles can cooperate with concrete very well depends on the bond between them.In this paper,the bonding mechanism that the stress was transferred from fine concrete to textile was analyzed,and the influences of the initial bond length of textile,the surface treatment of textile,the strength and workability of concrete as well as the level of prestressing force on bond behavior were investigated on the basis of pull-out tests.The results reveal that with initial bond length increasing,the maximum pull force increases,and increasing concrete strength and improving workability of concrete matrix,epoxy resin impregnating and sand covering of textile as well as prestressing textile can obviously increase the bond strength between the textile and concrete.