泡沫混凝土发泡剂的改性试验研究  

Experimental Study on Modification of Foaming Agent for Foamed Concrete

作　　者：陶宇 唐旭光[1] TAO Yu;TANG Xuguang

机构地区：[1]湖南科技大学土木工程学院,湖南湘潭411201

出　　处：《城市道桥与防洪》2023年第10期221-224,M0020,共5页Urban Roads Bridges & Flood Control

摘　　要：通过对比4种类型的发泡剂在不同稀释比下的泡沫性能,优选稀释倍数30的高分子植物蛋白剂为发泡母液,分别掺入适量的十二烷基硫酸钠、羟丙基甲基纤维素、三聚磷酸纳进行复配改性,对发泡性能进行研究分析。得出掺量为0.6%的三聚磷酸纳改性发泡母液制备的泡沫表面细腻光泽、稳定性较好、流动性较高,发泡倍数55.31,沉降距7.6 mm,泌水量11.6 mL、48 h后泡沫混凝土料浆沉陷距1.2 mm。By comparing the foaming properties of four types of foaming agents under the different dilution ratios,the polymer plant protein agent with dilution ratio of 30 is optimized as the mother foaming solution.The sodium dodecyl sulfate,hydroxypropyl methyl cellulose and sodium tripolyphosphate are moderately added respectively to carry out the compound modification for the study and analysis of the foaming properties.The results show that the foam prepared with 0.6%sodium tripolyphosphonic modified foaming mother liquor has the fine and glossy surface,good stability and high fluidity.The foaming ratio is 55.31,the settlement distance is 7.6 mm,the water secretion is 11.6 ml,and the subsidence distance of foamed concrete slurry is 1.2 mm after 48 h.

关 键 词：泡沫混凝土 发泡剂 泡沫稳定性 

分 类 号：TU528.2[建筑科学—建筑技术科学]