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The Study on New Super Setting Returder of Concrete

Wang Li jiu, Zhang Tie min, Liu Jun, Xie Feng qin, Ji Tong guo (Dalian Univ,of Technol.,116024,China)〔  
? The paper studies the new kinds of super setting retarder that composites with fluosilicate,aluminosilicate、transition element compeund.The setting time over 42 hours and it's proposed that the compressive strength is greatly improved and strengthened.The mircrostructure of the hardening cement admixed with supper setting retarder is described by SEM,and the super setting principles in also discussed.The paper also show the vast vistas of super setting retardes's application on the practical concrete project. 〔
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