外加剂对木粉氯氧镁水泥混合物水化特性及抗折抗压强度的影响  

Effect of additives on the hydration and flexural and compressive strength of wood flour and Magnesium Oxychloride Cement mixture

作　　者：梅佳[1] 聂玉静[1] 何理辉[1] 刘嵘[1] 赵泽人[1] 林鹏 马灵飞[1] 

机构地区：[1]浙江农林大学工程学院,临安311300 [2]浙江省家具与五金研究所,杭州311112

出　　处：《木材加工机械》2013年第3期26-29,共4页Wood Processing Machinery

基　　金：国家自然科学基金(31270592);国家林业公益性行业科研专项(201204702);浙江农林大学研究生科研创新基金(2112010009)

摘　　要：利用热导式测试仪研究了不同外加剂对木粉氯氧镁水泥混合物水化放热特性的影响,并且测试了掺入不同外加剂的木粉氯氧镁水泥固化物的抗折抗压强度。结果表明:掺入不同外加剂的木粉氯氧镁水泥试样的水化历程可划分为四个阶段;氧化钙和硫酸铝具有促凝效果,甲酸钙和硫酸锌具有缓凝效果;4种外加剂对试样抗折及抗压强度的影响不明显,可以作为促凝剂或缓凝剂使用。the effect of different additives on the hydration of wood flour and Magnesium Oxychloride Cement mixture during 24 hours were studied, and the flexural strength and compressive strength of Magnesium Oxychloride Cement sample containing different additives were tested. The results show that the hydration process of the sample containing different additives during 24 hours can be divided into four periods. CaO and A12（SO4）3 can be used as accelerators, Ca（HCOO）2 and ZnSO4 can be used as retarders, because they has no obvious effect on the flexural strength and compressive strength of Magnesium Oxychloride Cement sample

关 键 词：氯氧镁水泥 水化 外加剂 促凝剂 缓凝剂 

分 类 号：TS653[轻工技术与工程]