石灰石粉改性膏状瓷砖背胶性能研究  

Study on the Properties of Plaster Tile Backing Modified by Limestone Powder

作　　者：胡慕 廖国胜[1,2,3] 陈乐舟 廖宜顺 梅军鹏[1,2,3] HU Mu;LIAO Guo-sheng;CHEN Le-zhou;LIAO Yi-shun;MEI Jun-peng(School of Urban Construction,Wuhan University of Science and Technology;Hubei Engineering Research Center for Urban Renewa;Institute of High Performance Engineering Structure,Wuhan University of Science and Technology;Hubei Jeark New Materials Co.,Ltd,Wuhan 430065)

机构地区：[1]武汉科技大学城市建设学院 [2]城市更新湖北省工程研究中心 [3]武汉科技大学高性能工程结构研究院 [4]湖北碱克新材料有限公司,武汉430065

出　　处：《胶体与聚合物》2024年第1期17-19,23,共4页Chinese Journal of Colloid & Polymer

摘　　要：研究了石灰石粉掺量对膏状瓷砖背胶在标准养护环境7天、28天龄期以及浸水、冻融和热老化环境下的拉伸粘结强度的影响。结果表明:LP40在热老化环境下的拉伸粘结强度改善尤为明显;在7天时LP40与LP0的拉伸粘结强度相比提高了50%,有效提升了膏状瓷砖背胶的早期粘结强度。XRD、SEM分析表明,石灰石粉可以填充界面砂浆孔隙,加速水泥砂浆水化,使瓷砖与砂浆界面粘结更为紧密。This study investigated the impact of limestone powder content on the tensile bond strength of paste ceramic tile backing adhesive under standard curing conditions of 7 days,28 days,water immersion,freeze-thaw,and thermal aging.The findings reveal a significant improvement in the tensile bond strength of LP40 under thermal aging.After 7 days,the tensile bond strength of LP40 is 50%higher than that of LP0,effectively enhancing the early bond strength of the paste tile backing.XRD and SEM analyses indicate that limestone powder can fill the interfacial mortar pores,expedite the hydration of cement mortar,and promote a closer interface bond between the ceramic tile and mortar.

关 键 词：石灰石粉 膏状瓷砖背胶 龄期 养护环境 拉伸粘结强度 

分 类 号：TU581[建筑科学—建筑技术科学]