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聚羧酸减水剂与水泥的相容性是混凝土生产中备受关注的问题.采用净浆流动度法测试水泥净浆初始流动度、饱和掺量点、流动度经时损失三个参数,以此考察某聚羧酸减水剂与乐山地区三种常用水泥(A、B、C)的相容性.分别采用激光粒度仪、Zeta电位仪和X射线衍射仪测试水泥的粒径、Zeta电位和物相组成,探索导致三种水泥与聚羧酸减水剂相容性出现差异的可能因素.研究结果表明三种水泥与聚羧酸减水剂相容性优劣顺序为:A>B>C,这与根据Zeta电位和粒径推测出的相容性顺序不一致,但与根据相成分测试结果推测出的相容性优劣顺序是一致的.由此可以推测Zeta电位与粒径均不是影响三种水泥与聚羧酸减水剂相容性的主要因素,而水泥各相成分的含量可能是影响相容性的一个主要因素.

参考文献

[1] 冯云.水泥生产中影响水泥与外加剂适应性的因素探讨[J].新世纪水泥导报,2010(02):20-24.
[2] S.K. Agarwal;Irshad Masood;S.K. Malhotra .Compatibility of superplasticizers with different cements[J].Construction and Building Materials,2000(5):253-259.
[3] 姜德民,崔素萍.几种水泥与高效减水剂的相容性研究[J].低温建筑技术,2010(09):15-17.
[4] COPPOLA L,BUOSO A,LORENZI S.萘系和聚羧酸高效减水剂与几种不同水泥品种间的相容性问题(长期结果)[J].硅酸盐学报,2010(09):1631-1637.
[5] 王万兴,张广泰,于修站.一种聚羧酸系外加剂与水泥的相容性研究[J].四川建筑,2009(04):244-246,248.
[6] 丁铸;张宁;张德成.Study on the compatibility of water reducing agent and cement(水泥与减水剂相容性的研究)[J].水泥技术,1999(05):13.
[7] 吴笑梅,樊粤明,郭文瑛.颗粒分布对水泥与减水剂相容性的影响[J].华南理工大学学报(自然科学版),2009(08):127-131.
[8] 肖军仓;卜建军.The effect of the fineness of grinding on the compatibility of cement and admixture(粉磨细度对水泥与外加剂相容性的影响)[J].水泥,2007(01):16.
[9] Johann Plank;Christian Hirsch .Impact of zeta potential of early cement hydration phases on superplasticizer adsorption[J].Cement and Concrete Research,2007(4):537-542.
[10] Kazuhiro Yoshioka;Ei-ichi Tazawa;Kenji Kawai .Adsorption characteristics of superplasticizers on cement component minerals[J].Cement and Concrete Research,2002(10):1507-1513.
[11] W. Prince;M. Espagne;P.-C. Aitcin .Ettringite formation: A crucial step in cement superplasticizer compatibility[J].Cement and Concrete Research,2003(5):635-641.
[12] Vovk A I .Hydration of tricalcium aluminate C3A and C3A-gypsum mixtures in the presence of surfactants:Adsorption or surface phase fomation[J].Colloid Journal,2000,62(01):24.
[13] Matsuyama H;Young J F .The Formation of C-S-H/polymer complexes by hydration of reactive β-dicalcium silicate[J].Concrete Science and Engineering,1999,1(02):66.
[14] 姚燕;王玲;田培.高性能混凝土[M].北京:化学工业出版社,2006:97.
[15] S.Hanehara;K.Yamada .Interaction between cement and chemical admixture from the point of cement hydration, absorption behaviour of admixture, and paste rheology[J].Cement and Concrete Research,1999(8):1159-1165.
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