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麦草木质素水泥混凝土减水剂研究
引用本文:樊耀波,穆环珍,徐良才,范秀英,张士强,高国义,单文华.麦草木质素水泥混凝土减水剂研究[J].环境科学,1995,16(4):46-48,45.
作者姓名:樊耀波  穆环珍  徐良才  范秀英  张士强  高国义  单文华
作者单位:中国科学院环境评价部,北京市海淀水泥厂,国家建筑材料测试中心
摘    要:将从麦草造纸黑液中提取的木质素进行磺化改性,探索其作为水泥混凝土减水剂的可行性,研制了ZS-3号减水剂,同时对麦草造纸黑液资源化治理工艺中产生的含磺化木质素素糖液进行了水泥混凝土减水性实验,研制了ZS-2号减水剂,实验结果表明,ZS-3使水泥混凝土减水率达10%,7d抗压强度增加18%,28d抗压强度增加5%,达到水泥混凝土普通减水剂性能。ZS-2使水泥混凝土减水率达10%,7d抗压强度增加73%

关 键 词:麦草木质素  磺化  混凝土  减水剂  水泥混凝土
收稿时间:1994/10/9 0:00:00

Development of A Concrete Water-Reducing Admixture Using Lignin from Alkaline Wheat Straw Pulping Black Liquor
Fan Yaobo.Development of A Concrete Water-Reducing Admixture Using Lignin from Alkaline Wheat Straw Pulping Black Liquor[J].Chinese Journal of Environmental Science,1995,16(4):46-48,45.
Authors:Fan Yaobo
Institution:Research Center for Eec-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085;Research Center for Eec-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085;Research Center for Eec-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085;Research Center for Eec-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085
Abstract:Lignin extracted from an alkaline wheat straw pulping black liquor was modified by sulfonation to study the feasibility of its use as a concrete water reducing agent. This has resulted in the development of ZS-3 water-reducing admixture. In addition, a liquor containing sulfonated lignin and polysaccharides from the conversion process of wheat straw pulping black liquor was found to have a function of concrete water reduction and was turned into a superplasticizer ZS-2. Both ZS3 and ZS-2 had a water reduction by 10%. The compressive strength of concrete was increased by 18%(7 days) or 5 %(28 days) when ZS-3 was added, and by 73%(7 days) or 2% (28 days)when ZS-2 was added.
Keywords:concrete water-reducing admixture  wheat straw lignin  sulfonation    
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