酸渣用作引气减水剂的研究  

Application of acid sludge as air entraining and water reducing admixture

作　　者：武光庆 伍联营[1] 胡仰栋[1] 

机构地区：[1]中国海洋大学化学化工学院,山东青岛266100

出　　处：《水泥助磨剂与混凝土外加剂》2015年第3期66-72,共7页

摘　　要：采用NaOH对酸渣进行中和并进行成分分析，其中磺酸盐质量分数为83．6％，NaCl质量分数为0．6％，Na2S04质量分数为15．8％。考察了砂浆减水率随酸渣掺加量的变化规律，结果表明：当掺加量为1．5％时，砂浆减水率达到21％，且酸渣具有引气性。通过正交实验考察了酸渣复配作为引气减水剂对混凝土减水率、含气量、抗压强度等指标的影响，给出了最佳复配方案。The acid sludge is neutralized by NaOH. Its components are composed of 83. 6% of sulfonate, 0. 6% of NaCl and 15. 8% of Na2 SO4 . The influence of the acid sludge on water reducing rate of cement mortar is investigated. The result shows that when the acid sludge is 1. 5%, the water reducing rate of cement mortar can achieve as high as 21% and the air entraining performance of the acid sludge is found. The orthogonal experiment is used to study the effect of acid sludge （ using as air entraining and water reducing admixture） on the water reducing rate of concrete, air content and compressive strength. The optimization of compounding formulation is also performed.

关 键 词：酸渣 减水率 含气量 抗压强度 引气减水剂 

分 类 号：TU528.042[建筑科学—建筑技术科学]