养护制度对预应力高强度混凝土管桩脆性及耐久性的影响  

Effect of curing way on brittleness and durability of prestress high concrete pipe piles

作　　者：王成启[1] 王春明 周郁兵 张宜兵 

机构地区：[1]中交上海三航科学研究院有限公司,上海200032 [2]中交第三航务工程局有限公司南京分公司,江苏南京210011

出　　处：《混凝土》2014年第10期131-133,144,共4页Concrete

摘　　要：试验研究了常压蒸养护和高压蒸汽养护工艺生产的预应力高强度混凝土管桩混凝土的脆性和耐久性。研究结果表明,常压蒸养预应力高强度混凝土管桩混凝土的脆性小于高压蒸养混凝土;常压蒸养预应力高强度混凝土管桩混凝土抗氯盐侵蚀性能和抗冻性等耐久性高于高压蒸养混凝土。采用常压蒸养生产预应力高强度混凝土管桩有利于预应力高强度混凝土管桩的抗锤击性能,适用于北方冻融和海洋环境。The brittleness and durability of prestress high concrete pipe piles on non-steam autoclaved and steam autoclaved were experimentally studied.Experimental results showed that the brittleness of non-steam autoclaved concrete was less than steam autoclaved concrete＇s.Moreover,the chlorine-resistant and frost-resistance properties of non-steam autoclaved concrete were better than steam autoclaved concrete＇s.prestress high concrete pipe piles on non-steam autoclaved excels in anti hammer,it was applicable in freeze-thaw and chlorine circumstance.

关 键 词：养护 常压蒸养 高压蒸养 脆性 耐久性 

分 类 号：TU528.064[建筑科学—建筑技术科学]