首页期刊信息编委及顾问期刊发行联系方式使用帮助留言板ENGLISH
位置:首页 >> 正文
2CaSO4·K2SO4 复盐对硅酸盐水泥熟料烧成及水化的影响
作者:黄黎明1 2 杨正宏1 2 宋文娟1 2 李好新1 2 
单位:1. 同济大学材料科学与工程学院 上海 201804 2. 同济大学 先进土木工程材料教育部重点实验室 上海 201804 
关键词:硫酸钾钙复盐 高温烧成 矿物成分 晶型 水化性能 
分类号:TQ172
出版年,卷(期):页码:2017,45(11):0-0
DOI:10.14062/j.issn.0454-5648.2017.11.09
摘要:
通过高温合成2CaSO4·K2SO4 复盐,再将其以不同掺量掺入CaCO3、SiO2、Al2O3 和Fe2O3 组成的水泥生料中,在1 450 ℃
煅烧至水泥熟料中f-CaO 小于1%。研究了2CaSO4·K2SO4 复盐对水泥熟料高温烧成过程、矿物组成与结构及水化性能的影响。
结果表明:2CaSO4·K2SO4 降低了CaCO3 起始分解温度,改变了熟料的熔融液相性质,增加了液相量,降低了矿物的最低共
熔温度;2CaSO4·K2SO4 提高了熟料中C3S 含量,降低了C3A 和C4AF 含量,烧成熟料中C2S 晶型主要为β 型,也存在少量γ
型,2CaSO4·K2SO4 使C3S 晶型由R 型向M1 型转变,但晶型不随掺量改变。复盐的掺入缩短了熟料水化的诱导期,促使第二
水化放热峰最大值提前出现,2CaSO4·K2SO4 掺量增加抑制了熟料前期和后期水化性能,提高了中期水化放热速率。
The 2CaSO4•K2SO4 was firstly synthesized via high temperature reaction, and then mixed with CaCO3, SiO2, Al2O3 and
Fe2O3 as cement raw materials. Those raw materials were sintered at 1 450 °C. Influence of 2CaSO4•K2SO4 on the sintering process,
mineral composition and polymorphs, and hydration properties of sintered clinker was investigated. The results show that the
2CaSO4•K2SO4 reduces the initial decomposition temperature of CaCO3, improves the melt liquid phase properties of raw materials,
increases the content of formed liquid phase and reduces the minimum eutectic temperature of raw materials. The 2CaSO4•K2SO4
increases the content of C3S and reduces the contents of C3A and C4AF in the clinker. The polymorph of C2S in the clinker is mainly
β-type, and there exists a small amount of γ-type,the polymorph of C3S is changed from R to M1 in the presence of 2CaSO4•K2SO4,
but its polymorphism does not change with the increased content of 2CaSO4•K2SO4. The 2CaSO4•K2SO4 reduces the hydration
induction period of clinker and increases the maximum value of the second hydration exothermic peak. The initial and late hydration
properties of clinker are inhibited due to the 2CaSO4•K2SO4, but the hydration rate of clinker in the medium term is increased.
基金项目:
国家自然科学基金重大项目(51132010)
作者简介:
黄黎明(1993—),男,硕士研究生
参考文献:

[1] 邓铃夕. 原生硫酸复盐对水泥性能的影响[D]. 重庆大学, 2015.
Deng Lingxi. Effect of protogenetic sulfate on physical properties of portland cement (in Chinese, dissertation). Chongqing University, 2015.

[2] 钱觉时, 郑洪伟, 宋远明, . 流化床燃煤固硫灰渣的特性[J]. 硅酸盐学报, 2008(10): 1396–1400.
Qian Jueshi, Zheng Hongwei, Song Yuanming, et al. J Chin Ceram Soc, 2008(10): 1396–1400.

[3] Song Yuanming, Qian Jueshi, Wang Zhi. Self-cementing mechanism of CFBC coal ashes[J]. J Wuhan Univ Technol: Mater Sci, 2008, 24(3): 33834.

[4] 张志伟. 原生型无水石膏在硅酸盐水泥中的作用研究[D]. 重庆大学, 2012.
Zhang Zhiwei. Roles of protogenetic anhydrite in Portland Cement (in Chinese, dissertation). Chongqing University, 2012

[5] 沈燕, 钱觉时, 王应. 水泥生产中SO3测试方法的比较研究[J]. 硅酸盐通报, 2012, (3): 613616.
Shen Yan, Qian Jue, Wang Ying, et al. Bull Chin Ceram Soc (in Chinese), 2012, (3): 613616.

[6] Taylor H F W. Distribution of sulfate between phases in Portland cement clinkers[J]. Cem Concr Res, 1999, 29(8): 11731179.

[7] Kakali G, Kasselouri V. Investigation of the effect of Mo, Nb, W and Zr oxides on the formation of portland cement clinker [J]. Cem Concr Res, 1990, 20(1): 131138.

[8] 冯培植, 童大懋. 对掺有氟化钙、硫酸钙的硅酸盐水泥熟料C3S低温形成的探讨[J]. 水泥, 1983(10): 2228.
Feng Peizhi, Tong Damao. Cement (in Chinese), 1983(10): 2228.

[9] Gutt W, Smith M A. A New Calcium silicosulphate[J]. Nature, 1966, 210(5034): 408409.

[10] Kolovos K, Loutsi P, Tsivilis S, et al. The effect of foreign ions on the reactivity of the CaO–SiO2 –Al2O3–Fe2O3, system: Part I. Anions [J]. Cem Concr Res, 2001, 31(3): 425429.

[11] Taylor H F W. Cement Chemistry[M]. Thomas Telford, 1997.

[12] Li X, Huang H, Xu J, et al. Statistical research on phase formation and modification of alite polymorphs in cement clinker with SO3, and MgO [J]. Construct Build Mater, 2012, 37(37): 548555.

[13] BIGARÉ M, Guinier A, Mazières C, et al. Polymorphism of Tricalcium Silicate and Its Solid Solutions[J]. J Am Ceram Soc, 2010, 50(11): 609619.

[14] Moranvilleregourd M, Bolkova A I. Chemistry, structure, properties and quality of clinker [C]// 9th International Congress on the Chemistry of Cement, New Delhi, India, 1992 

[15] 冯修吉, 龙世宗. 微量离子对β-C2S稳定性的影响及其机理研究[J]. 硅酸盐学报, 1985(4): 3442.
Feng Xiuji, Long Shizong. J Chin Ceram Soc, 1985(4): 3442.

[16] 陈琳, 沈晓冬, 马素花, . 水泥熟料中硅酸三钙晶体结构的研  [C]// 全国青年材料科学技术研讨会, 2009.
CHEN Lin, SHEN Xiaodong, MA Suhua, et al. Exploration for effect on crystal structure of tricalcium silicate of cement clinker [C].// National Youth materials science and technology, 2009.

[17] Stewart H R, Bailey J E. Microstructural studies of the hydration products of three tricalcium silicate polymorphs [J]. J Mater Sci, 1983, 18(12): 36863694.

[18] Nocuò-Wczelik W. Effect of Na and Al on the phase composition and morphology of autoclaved calcium silicate hydrates [J]. Cem Concr Res, 1999, 29(11): 17591767.

[19] MaycoKC J N, Skalny J, Kalyoncu R. Crystal defects and hydration I. Influence of lattice defects [J]. Cem Concr Res, 1974, 4(5): 835847.

[20] 韩春华. 硫对硅酸盐水泥熟料烧成过程的影响规律研究[D]. 武汉理工大学, 2006.
HAN Chunhua. Research on the influence of sulfur on sintering process of Portland cement clinker (in Chinese, dissertation). Wuhan University of Technology, 2006.

[21] REN X, ZHANG W, YE J. Influence of Alkalis Oxides Doping on Structure and Reactivities of Tricalcium Silicate//The 14th International Congress on the Chemistry of Cement[C]. Beijing, China, 2015.

[22] Li Xuerun, Ma Bing, Chen Wenping, et al. Alite modification by SO3 in cement clinker–an industrial trial// The 14th International Congress on the Chemistry of Cement[C]. Beijing, China, 2015.

[23] Newkirk T F. Effect of SO3 on the alkali compounds of portland cement clinker[J]. J Res National Bureau of Standards, 1951, 47(5): 349356. 

[24] 谢峻林, 肖飞燕, 韩春华, . 高硫煤燃烧对水泥熟料矿物形成过程的影响[J]. 武汉理工大学学报, 2007, 29(5): 3133.
XIE Junlin, XIAO Feiyan, HAN chunhua, et al. J Wuhan Univ Technol (in Chinese), 2007, 29(5): 3133.

[25] 杨南如, 岳文海. 无机非金属材料图谱手册[M]. 武汉工业大学出版社, 2000.

[26] 薛君. 第七届国际水泥化学会议论文选集[M]. 中国建筑工业出版社, 1985.
Xue Jun. Selected papers of the Seventh International Conference on cement chemistry [M]. Beijing: China Architecture & Building Press(in Chinese), 1985.

服务与反馈:
文章下载】【加入收藏
中国硅酸盐学会《硅酸盐学报》编辑室
京ICP备10016537号-2
京公网安备 11010802024188号
地址:北京市海淀区三里河路11号    邮政编码:100831
电话:010-57811253  57811254    
E-mail:jccs@ceramsoc.com