Hydration characteristics of Portland cement paste with phosphorus slag powder incorporated and hydration kinetics was investigated with SEM, X-ray diffraction, DTA-TG and calorimeter Ⅱ80. Results showed that phosphorus slag powder could reduce total amount of hydration products yet had little influence on the type of hydration products. The total amount of heat of hydration was decreased by 49.11% and the final setting was postponed by 2.28 h when phosphorus slag powder substituted 35% Portland cement by mass. The accelerating stage of this composite paste was controlled by catalysis, decreasing stage controlled by both catalysis and diffusion while stabilizing stage by diffusion alone. Hydration resistance and activation energy were reduced and hydration speed was accelerated.
参考文献
| [1] | Dongxu L.;Jinlin S. .The influence of admixtures on the properties of phosphorous slag cement[J].Cement and Concrete Research,2000(7):1169-1173. |
| [2] | Caijun Shi;Jueshi Qian .High performance cementing materials from industrial slags - a review[J].Resources, Conservation and Recycling,2000(3):195-207. |
| [3] | LUN Yunxia,ZilOU Mingkai,CAI Xiao,XU Fang.Methods for Improving Volume Stability of Steel Slag as Fine Aggregate[J].武汉理工大学学报（材料科学版）（英文版）,2008(05):737-742. |
| [4] | 任书霞,张光磊,要秉文,李仕群.改性硅酸盐水泥的水化动力学研究[J].硅酸盐通报,2008(03):444-450. |
| [5] | 阎培渝,郑峰.水泥基材料的水化动力学模型[J].硅酸盐学报,2006(05):555-559. |
| [6] | WANG Jiachun,YAN Peiyu,YU Hongfa.Apparent Activation Energy of Concrete in Early Age Determined by Adiabatic Test[J].武汉理工大学学报（材料科学版）（英文版）,2007(03):537-541. |
| [7] | 刘飚,翟国芳,李仕群,张宁,王伟,胡佳山.硅酸盐与磷铝酸盐复合水泥水化动力学的研究[J].建筑材料学报,2008(03):259-265. |
| [8] | KANG Jingfu,WANG Xiufen.Effects of GH Admixture on the Early Strength of Fly Ash Concrete and Mortar[J].武汉理工大学学报（材料科学版）（英文版）,2008(05):755-760. |
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