硅酸盐通报2024,Vol.43Issue(1):147-157,11.
FRP筋与海水海砂混凝土界面粘结性能研究进展
Research Progress of Interfacial Bond Properties Between FRP Bars and Seawater Sea-Sand Concrete
摘要
Abstract
The use of seawater and sea-sand for replacing river water and river sand in the production of seawater sea-sand concrete(SWSSC)can effectively solve the problems of high transportation costs of construction material and long delivery time for islands and reefs,marine and harbor engineering structure construction.However,corrosion of steel bars is exacerbated by the use of ordinary steel bars and seawater sand concrete in marine structures.In recent years,the application of fiber-reinforced polymer(FRP)reinforcement instead of ordinary steel bars in SWSSC can effectively solve the problem of chloride-induced steel corrosion in SWSSC.In this paper,the degradation law of the interfacial bond performance between FRP reinforcement and SWSSC was summarized.The failure mechanisms of bond strength of FRP reinforcement-concrete under different environments were analyzed.The effects of fiber type,embedding length,reinforcement diameter,surface type of FRP reinforcement and compressive strength of concrete on interfacial bond performance were discussed.Furthermore,the existing bond-slip constitutive models were further summarized.This review can provide a scientific basis for practical application of FRP reinforcement in SWSSC.关键词
海水海砂混凝土/FRP筋/破坏模式/粘结性能/本构模型Key words
seawater sea-sand concrete/FRP bar/failure mode/bond property/constitutive model分类
建筑与水利引用本文复制引用
孔令艳,刘树昌,鲍玖文,尹相振,曹银龙,崔祎菲..FRP筋与海水海砂混凝土界面粘结性能研究进展[J].硅酸盐通报,2024,43(1):147-157,11.基金项目
NSCF-山东省联合基金(U2106219) (U2106219)
山东省高等学校青年创新团队计划(2021KJ019) (2021KJ019)