【摘 要】
：
Activation of theslag cement was performed using a composite activator. Experimental resultsshow that the performance of the cement is remarkably improved. The
论文部分内容阅读
Activation of theslag cement was performed using a composite activator. Experimental resultsshow that the performance of the cement is remarkably improved. The fineness and specific surface area of the ce-ment are increased by 23.7% and 1.4% , and 3d flexural strength and compressive strength are enhanced by20.9% and 22.9% , respectively. Microstructure and phase composition of the hydrates were analysed by X- raydiffraction(XRD) and scanning electron microscopy(SEM). The results indicate that Ca( OH)2 in the hydratesdecrease obviously. The morphology of the other hydrates appears to be flocculent, with a dense structure. The im-provements of the properties is related to the microstructural changes.
其他文献
通过田间小区试验,研究了施用化肥对下辽河平原稻田土壤线虫群落组成产生的影响。结果表明,共获得15科、19属,其中绕线属、小杆属、垫刃属为优势属。线虫总数、食细菌线虫、
主要运用温和电泳和蛋白印迹技术检测了暗培养4天脱绿的衣藻y-1细胞以及转绿后y-1细胞光系统Ⅰ的核心色素蛋白复合物(CPⅠ)和核心叶绿素脱辅基蛋白PsaA/B.暗培养衣藻细胞中,P
目的 观察c9,t11-CLA及t10,c12-CLA干预后,大鼠骨髓细胞过氧化物酶体增殖物激活受体2(PPARγ2)及核因子(NF)-κB活化受体配体(RANKL)、碱性磷酸酶(ALP)、骨保护素(OPG)、NF-
八一镇—邛多江公路是西藏东南部的重要国防交通线,也是藏东公路南环线的主要环节,在全长438km里程中约有400km穿行于雅鲁藏布江河谷。公路自1972年投入运营以来,因雅鲁藏布
对4种三倍体杨树核型进行了比较分析,三倍体毛白杨核型为:2n=3x=57=1M+31m+10sm+15st;三倍体I-214为:2n=3x=57=2M+33m(2SAT)+10sm(1SAT)+10st(3SAT)+2t;三倍体武黑1号为:2n=3
用非等温DSC和TG,在2,4,6,8 K·min-1四个不同的线性升温速率下,研究了分析纯硝酸铵(AN)、工业AN以及分析纯AN和NaNO3混合物的热分解动力学.结果表明,在反应深度为0.0～0.4区间
In MH/Ni high power battery production, a large percent of batteries were found with an open circuit voltage lower than 1.18 V after formation, open circuit vol
按照(火用)平衡分析模型对某城市污水处理厂的二级处理系统进行了研究,结合(火用)效率指标考察了其能量质的变化和损耗.通过这种分析,可以从根本上明确(火用)损耗发生的位置
The open voltage of batteries shows different status after MH-Ni batteries are stored for a period of time.Some batteries with 0, 0.9 ～ 1.1V and above 1.1 V were
通过现场采样及室内测试,分析了广东大宝山地区酸性金属矿长期污染水稻田的土壤特性,研究了重金属 Cu、 Pb、 Zn、 Cd的全量与 DTPA浸提态含量的相互关系.结果表明,除 Pb外,