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白泥是国内外大、中型纸浆厂采用碱回收工艺处理造纸黑液所产生的废渣。自1982年以来,我所与闸北住宅公司为解决白泥废渣的综合治理,在建筑行业中进行了大量的试验研究,目前白泥在建筑砂浆中的应用已通过了技术鉴定。(一)白泥的物理化学性质白泥呈灰白色,稠浆状,pH 值11,主要成分为 CaCO_3(约占95%),详见表1。
White mud is the waste residue produced by the black liquor from papermaking at the domestic and foreign large and medium-sized pulp mills using the alkali recovery process. Since 1982, Zhabei Residence Co., Ltd. and Zhabei Residence Co., Ltd. have conducted a large number of experimental studies in the construction industry to solve the comprehensive treatment of white mud residue. At present, the application of white mud in building mortar has passed the technical appraisal. (I) Physical and Chemical Properties of White Mud White mud is grayish-white, thick paste-like, with a pH value of 11, and the main component is CaCO_3 (about 95%). See Table 1 for details.