发明名称 RAPID HARDENING, ULTRA-HIGH EARLY STRENGTH PORTLAND-TYPE CEMENT COMPOSITIONS, NOVEL CLINKERS AND METHODS FOR THEIR MANUFACTURE
摘要 <p>Clinkered materials containing high concentrations of {(C,K,N,M)4 (A,F,Mn,P,T,S)3 C1, S)} (crystal X), and {C2S)3 (CS)3 C(f,C1)} or C10S3S3(f,c1) (crystal Y), and/or {C5S2S) (crystal Z). The methods include the steps of forming a mixture of raw material containing CaO, MgO, A12O3, Fe2O3, TiO2, Mn2O5, SiO2, SO3, Na2O, K2O, P2O5 and F, respectively designated C, M, A, F, T, Mn, S, S, N, K, P and f, and heating said mixture to an elevated temperature between 900 °C and 1,200 °C. Final mixtures comprising these clinkers and hydraulic or portland type cement are made to produce cement compositions having crystal X concentrations of approximately 5 % to 35 % by weight, crystal Y concentrations of approximately 5 % to 40 % by weight, and/or crystal Z concentrations of approximately 5 % to 40 % by weight, with the remainder being hydraulic or portland type cement.</p>
申请公布号 WO2000063131(A1) 申请公布日期 2000.10.26
申请号 US2000007433 申请日期 2000.03.21
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