掺ZY膨胀剂水泥石碳化性能的多种方法对比研究  

Analysis of carbonation of ZY expansive agent-added cement pastes by using multiple methods

作　　者：郭少昱 江守恒[2] 朱卫中 

机构地区：[1]哈尔滨市市政工程设计院,黑龙江哈尔滨150070 [2]黑龙江省寒地建筑科学研究院,黑龙江哈尔滨150080 [3]黑龙江省城镇建设研究所,黑龙江哈尔滨150040

出　　处：《黑龙江水利》2017年第12期6-11,共6页

基　　金：黑龙江省科研机构创新能力提升专项计划(YC2015D004)

摘　　要：本文使用了酚酞指示剂法、化学滴定法及模拟孔溶液法,研究了掺ZY膨胀剂水泥石加速碳化性能。试验结果表明:掺8%ZY膨胀剂水泥石抗碳化性能差于基准组水泥石,酚酞指示剂法仅适用于表征完全碳化的水泥石,其测试的碳化深度低于化学滴定法及模拟孔溶液法所确定的水泥石碳化深度;掺ZY膨胀剂使模拟孔溶液中Ca^(2+)浓度略有升高,但碳化使得各组水泥石模拟孔溶液中Ca^(2+)浓度降低。In this paper, the phenolphthalein indicator method, chemical titration method and simulated solution method were applied to investigate the carbonation properties of ZY expansive agent-added cement paste. The results showed that the addition of 8~ ZY expansive agent decrease the carbonation properties of hardened cement pastes, the phenolphthalein indicator method was only suitable for the complete carbonated area, the carbonation depth acquired from chemical titration method and simulated solution method were higher than that obtained from phenolphthalein indicator method. The Ca^2＋ concentration of ZY expansive agent-added cement paste was increased, however, the carbonation process decreased the Ca^2＋ concentration simulated pore solution.

关 键 词：ZY膨胀剂 水泥石 碳化性能 化学滴定 模拟孔溶液 

分 类 号：TU528[建筑科学—建筑技术科学]