土木工程  >> Vol. 6 No. 4 (July 2017)

混合材对水泥与聚羧酸减水剂相容性的影响
The Impact of Blending Materials on the Compatibility between Cement andPolycarboxylate Superplasticizer

DOI: 10.12677/HJCE.2017.64042, PDF, HTML, XML, 下载: 927  浏览: 1,133 

作者: 苗 春*:上海建科检验有限公司,上海;国家建筑工程材料质量监督检验中心,上海;上海市建筑科学研究院(集团)有限公司,上海

关键词: 聚羧酸减水剂混合材相容性复合效应PolyCarboxylate Superplasticizer Cement Compatibility Compound Effects

摘要: 通过对聚羧酸减水剂水泥净浆流动度及流动度损失的测定试验,研究了不同品种混合材以及混合材复合效应对水泥与聚羧酸减水剂相容性的影响。研究结果表明:矿渣及粉煤灰有利于改善水泥与减水剂的相容性;活化煤矸石与未活化煤矸石对水泥与聚羧酸减水剂相容性的影响规律正好相反;石粉会严重削弱水泥与聚羧酸减水剂相容性;当矿渣与粉煤灰复掺比例合理时,水泥与聚羧酸减水剂相容性得以增强。
Abstract: The different kinds of blending materials and the compound effect on the compatibility between cement and polycarboxylate superplasticizer are investigated by the fluidity and fluidity loss of cement pastes added with polycarboxylate superplasticizer. The results show that slag and fly ash in cement can enhance the compatibility between cement and superplasticizer; activated coal gangue and un-activated coal gangue are exactly opposite in affecting the compatibility between cement and superplasticizer; stone ash greatly decreases the compatibility between cement and superplasticizer; when the ratio of slag with fly ash is reasonable, the cement paste with superplasticizer added was highly improved in compatibility.

文章引用: 苗春. 混合材对水泥与聚羧酸减水剂相容性的影响[J]. 土木工程, 2017, 6(4): 364-370. https://doi.org/10.12677/HJCE.2017.64042

参考文献

[1] 孙振平, 蒋正武, 王玉吉, 等. 混凝土外加剂与水泥适应性[J]. 建筑材料学报, 2002, 5(1): 26-31.
[2] 李必哲, 付军明. 混凝土外加剂与水泥适应性试验分析与外加剂掺加工艺控制[J]. 甘肃科技, 2008, 24(12): 111- 114.
[3] 孙振平, 蒋正武. 矿渣粉大量替代水泥对高效减水剂作用的影响[J]. 建筑材料学报, 2003, 6(3): 231-236.
[4] 董延昭, 张全贵, 周金金. 不同种类及掺量的混合材配制的水泥对外加剂适应性的影响研究[J]. 商品混凝土, 2014(6): 41-44.
[5] 孙振平, 蒋正武, 等. 商品混凝土中外加剂与水泥/掺合料适应性的研究[J]. 商品混凝土, 2001(1): 11-15.
[6] 孙媛, 孙振平. 混合材对水泥与减水剂适应性的影响研究[J]. 水泥, 2003(6): 7-9.
[7] 何燕, 张雄, 张永娟. 混合材对水泥与聚羧酸减水剂相容性的影响[J]. 粉煤灰综合利用, 2012(4): 27-29.
[8] 王强, 阎培渝, 韩松. 钢渣在复合胶凝材料的水化过程中对水泥水化的影响[J].中国科学技术科学, 2011, 41(2): 170-176.
[9] Altuna, I.A. and YIlmaz, I. (2002) Study on Steel Furnace Slags with High MgO as Additive in Portland Cement. Cement and Concrete Research, 32, 1247-1249. https://doi.org/10.1016/S0008-8846(02)00763-9
[10] 马保国, 杨虎, 谭洪波, 严敏. 黏土和石粉含量对聚羧酸减水剂的影响[J]. 混凝土, 2012(5): 60-63.