激发剂对隧道防火涂料粘结强度的影响  

Effect of activators on bonding strength of alkali-activated slag tunnel fireproof coating

作　　者：金国望 季韬[1] 林旭健[1] 王文程 JIN Guo-wang;JI Tao;LIN Xu-jian;WANG Wen-cheng(College of Civil Engineering,Fuzhou University,Fujian Fuzhou 350108,China)

机构地区：[1]福州大学土木工程学院

出　　处：《消防科学与技术》2019年第7期994-997,共4页Fire Science and Technology

基　　金：福州市科技局市校合作资助项目(2017-G-56);福建省科技厅工业高校产学合作科技重大资助项目(2013H6013)

摘　　要：研究不同激发剂(氢氧化钠和硫酸钠)种类和浓度对碱矿渣隧道防火涂料性能的影响。采用拉伸粘结方法测试ATFC在冻融循环前后的粘结强度,通过孔结构和SEM研究ATFC的微观结构。研究结果表明,氢氧化钠(A组)和硫酸钠(B组)溶液质量分数分别为1%~10%和1%~5%时,随着浓度的增大,累计孔体积和平均孔径减少,界面过渡区的缝隙减小,粘结强度增大;质量分数分别在10%~20%和5%~20%时,随着浓度的增大,ATFC的累积孔体积、平均孔径以及孔径分布较接近,ATFC粘结强度变化不大。在相同溶液浓度情况下,A组粘结强度优于B组。The influence of the type and concentration of different activators(sodium hydroxide and sodium sulfate)on the bonding strength of alkali-activated slag tunnel fireproof coating(ATFC)was studied.The tensile bonding test method was used to measure the bonding strength of ATFC before and after the freeze-thaw cycle.The pore structure analysis and SEM were used to research the microstructure of the ATFC.The study results showed that,for the sodium hydroxide(Group A)and sodium sulfate solution(Group B)concentrations of 1%to 10%and 1%to 5%respectively,with the increase of the concentration,the cumulative pore volume and average pore diameter as well as the gap of the interface transition zone decrease,and the bonding strength of ATFC increases;for the sodium hydroxide and sodium sulfate solution concentrations of 10%to 20%and 5%to 20%respectively,the cumulative pore volume,average pore diameter,pore size distribution and the bonding strengths of ATFC are similar.The bonding strength of ATFC of Group A is better than that of ATFC of Group Bat the same solution concentration.

关 键 词：碱矿渣 隧道 防火涂料 激发剂 粘结强度 

分 类 号：X924.4[环境科学与工程—安全科学] TQ637.6[化学工程—精细化工]