粉煤灰
粉煤灰
분매회
COAL ASH CHINA
2012年
6期
6-9
,共4页
混凝土%粉煤灰%氯离子%电通量%龄期
混凝土%粉煤灰%氯離子%電通量%齡期
혼응토%분매회%록리자%전통량%령기
concrete%fly ash%chloride ion%coulomb electric flux%curing age
系统概括和总结了影响混凝土氯离子电通量的因素及粉煤灰对电通量的改善机理,研究了低水灰比下不同粉煤灰掺量的混凝土氯离子电通量随龄期的变化规律,探讨了氯离子电通量最小时对应的粉煤灰掺量问题.结果表明,随着龄期的增长,氯离子电通量降低,改善效果与粉煤灰掺量有关.<28 d 龄期,电通量与粉煤灰掺量无明显规律;>56 d 龄期,电通量随着粉煤掺量的增加而减小;粉煤灰掺量对电通量的影响规律与水灰比、龄期有关.
繫統概括和總結瞭影響混凝土氯離子電通量的因素及粉煤灰對電通量的改善機理,研究瞭低水灰比下不同粉煤灰摻量的混凝土氯離子電通量隨齡期的變化規律,探討瞭氯離子電通量最小時對應的粉煤灰摻量問題.結果錶明,隨著齡期的增長,氯離子電通量降低,改善效果與粉煤灰摻量有關.<28 d 齡期,電通量與粉煤灰摻量無明顯規律;>56 d 齡期,電通量隨著粉煤摻量的增加而減小;粉煤灰摻量對電通量的影響規律與水灰比、齡期有關.
계통개괄화총결료영향혼응토록리자전통량적인소급분매회대전통량적개선궤리,연구료저수회비하불동분매회참량적혼응토록리자전통량수령기적변화규률,탐토료록리자전통량최소시대응적분매회참량문제.결과표명,수착령기적증장,록리자전통량강저,개선효과여분매회참량유관.<28 d 령기,전통량여분매회참량무명현규률;>56 d 령기,전통량수착분매참량적증가이감소;분매회참량대전통량적영향규률여수회비、령기유관.
The influence factors of fly ash on chloride coulomb electric flux of concrete was summarized and discussed, and its improvement mechanism was also introduced. The influence of fly ash on the performance of resistance to chloride ion penetration of concrete, as well as the electric flux of concrete at early age and long age were investigated. The minimum electric flux corresponding to content of fly ash was also discussed. It is shown that the electric flux decreased with the curing age increased for all samples, and the improvement effect varied with fly ash content. It is found that less than 28d age, there is no regular relation between electric flux and fly ash content. More than 56d age, electric flux decreased with fly ash content increased. In addition, the maximal addition volume of fly ash is related with the water cement ratio and curing age.
