碱性和中性亚硫酸盐法制浆废液作水泥减水剂的研究  

Comprehensive Utilization of Alkaline and Neutral Sulfite Pulping Waste Liquor Using as the Waster-Reducing Admixture of Concrete

作　　者：张运展[1] 于俊杰[1] 张鹏 穆红英 

机构地区：[1]大连轻工业学院,辽宁大连116034 [2]大连产品质量监督检验所,辽宁大连116021

出　　处：《中国造纸学报》2004年第2期81-83,共3页Transactions of China Pulp and Paper

摘　　要：对AS AQ法落叶松废液和NS AQ法杨木浆废液按体积比 1∶4混合的混合液 (M L)作混凝土减水剂进行了研究 ,并与酸性亚硫酸盐法木浆废液 (Ca L)及亚硫酸氢镁法苇浆废液 (Mg L)做了比较。结果表明 ,以 50 %固体物含量的M L作为混凝土减水剂 ,当废液用量为0 2 5 %时 ,混凝土的静浆流动性为 9 6cm ,混凝土减水率 1 1 2 % ,初凝时间 7 0 8h ;终凝时间为 :1 0 2 5h ,3d、7d、2 8d的抗压强度比分别为 1 0 5 %、99%、1 0 3 %。而废液用量为 0 5 %时 ,各指标的对应值是 :1 0 8cm ,1 3 4% ,9 50h,1 4 75h ,1 0 8%、1 1 1 %、1 0 5 %。M L的总体效果优于Ca L和Mg L。Mixed waste liquor (M-L) of aspen neutral sulfite-anthraquinone pulping waste liquor and larch alkaline sulfite-anthraquinone pulping waste liquor is used as water-reducing admixture which is compared with that made of wood acidic sulfite pulping waste liquor (Ca-L) and reed magnesium bisulphate pulping one (Mg-L) in this paper. The results indicate that using M-L (50% solid content) as the water-reducing admixture of concrete, the charge of M-L being 0.25%, the static deformation of concrete slurry: 9.6 cm, water reducing rate: 11.2%, initial setting time: 7h5 min, final setting time: 10h15min, compression strength ratio are 105%, 99% and 103% for 3 days, 7 days and 28 days respectively, and the charge being 0.5%, the corresponding values of each item are: 10.8 cm, 13.4%, 9h30min, 14h45min, 108% 111% and 105% respectively. The overall effect of using M-L as the water-reducing admixture of concrete is better than using Ca-L and Mg-L.

关 键 词：水泥减水剂 亚硫酸盐法 废液 中性 抗压强度比 碱性 研究 木浆 浆流 苇浆 

分 类 号：TS734[轻工技术与工程—制浆造纸工程] TQ645.5[化学工程—精细化工]