混凝土与水泥制品
混凝土與水泥製品
혼응토여수니제품
CHINA CONCRETE AND CEMENT PRODUCTS
2014年
2期
9-12
,共4页
徐仁崇%陈茜%苏艺凡%刘光锐%徐少杰
徐仁崇%陳茜%囌藝凡%劉光銳%徐少傑
서인숭%진천%소예범%류광예%서소걸
自密实混凝土%大掺量矿物掺合料%抗压强度%氯离子渗透性能
自密實混凝土%大摻量礦物摻閤料%抗壓彊度%氯離子滲透性能
자밀실혼응토%대참량광물참합료%항압강도%록리자삼투성능
Self-compacting concrete%High volume of mineral admixtures%Compressive strength%Permeability of chloride ion
采用大掺量矿物掺合料配制C30~C60自密实混凝土，并对自密实混凝土的工作性能、强度及抗氯离子渗透性能进行研究。结果表明，增加胶凝材料用量可以改善混凝土的自密实性能，采用大掺量矿物掺合料替代水泥保证混凝土粉体总量，是配制中低强度自密实混凝土的方法之一；大掺量矿物掺合料自密实混凝土的抗压强度和抗氯离子渗透性能随龄期的增长不断提高，大矿物掺合料自密实混凝土的抗压强度和抗氯离子渗透性能评价应以56d龄期为准。
採用大摻量礦物摻閤料配製C30~C60自密實混凝土，併對自密實混凝土的工作性能、彊度及抗氯離子滲透性能進行研究。結果錶明，增加膠凝材料用量可以改善混凝土的自密實性能，採用大摻量礦物摻閤料替代水泥保證混凝土粉體總量，是配製中低彊度自密實混凝土的方法之一；大摻量礦物摻閤料自密實混凝土的抗壓彊度和抗氯離子滲透性能隨齡期的增長不斷提高，大礦物摻閤料自密實混凝土的抗壓彊度和抗氯離子滲透性能評價應以56d齡期為準。
채용대참량광물참합료배제C30~C60자밀실혼응토，병대자밀실혼응토적공작성능、강도급항록리자삼투성능진행연구。결과표명，증가효응재료용량가이개선혼응토적자밀실성능，채용대참량광물참합료체대수니보증혼응토분체총량，시배제중저강도자밀실혼응토적방법지일；대참량광물참합료자밀실혼응토적항압강도화항록리자삼투성능수령기적증장불단제고，대광물참합료자밀실혼응토적항압강도화항록리자삼투성능평개응이56d령기위준。
C30~C60 self-compacting concrete (SCC) is made by a high volume of mineral admixtures. The workabili-ty, strength and the penetration resistance of chloride ions performance of SCC are investigated. The results show that in-creasing the proportion of binding material can improve the self compacting performance of concrete, and using large amount of mineral admixture as substitution of cement is a way of making mid-low strength SCC. The compressive strength and penetration resistance of chloride ions performance of SCC with a large proportion of mineral admixtures are improved continually with the increase of curing period, and should be evaluated by the age of 56d.
