水泥基胶粘剂在不同吸水率瓷砖上的应用研究.pdfVIP

学兔兔 钎 建巍 中国科技核心期刊 水泥基胶粘剂在不同吸水率瓷砖上的 应用研究 武红霞，任红晓，徐建民 (山东凝易固砂浆科技有限公司，山东淄博 255000) 摘要：研究了水泥基胶粘剂与3种吸水率不同的瓷砖的胶粘强度和湿拌砂浆的性能。结果表明：随着胶粘剂中胶粉掺量的增 加，胶粘剂的施工性能改善，对基板的润湿能力提高、柔性增加、保水性和胶粘强度提高，但瓷砖的滑移性加剧；随着瓷砖吸水率的 降低，胶粉掺量相同时，胶粘剂胶粘强度降低，要想达到相同的胶粘效果，需要提高胶粉在胶粘剂中的掺量：对于高吸水率瓷砖，5 种应用环境强度中，处于弱势地位的是晾置2Omin后拉伸胶粘强度，而对于低吸水率瓷砖，处于弱势地位的是热老化后和冻融循 环后拉伸胶粘强度。 关键词：瓷砖胶粘剂；吸水率；瓷砖；应用 中图分类号：TU58 1．3 文献标识码：A 文章编号：1001—702X(2014)04—0083—03 Investigation on CTA applying in ceramic tile of different kinds of water absorption U Hongxia，REN Hongxiao，XU Jianmin (Shandong Ningyigu Mortar Technology Co．Ltd．，Zibo 255000，Shandong，China) Abstract：The adhesive strength of CTA in ceramic tile of three different kinds of water absorption and the performance of wet mortar were studied：The results showed the following points．First，along with the increase of redispersible polymer powder am ount in CTA，its strength in construction process became small，its wetting ability with substrate，flexibility and water retaining capacity were raised，adhesive strength increased in various application environments，but the slip of ceramic tile was intensified． Second，along with lower water absorption of ceramic tile，the adhesive strength was reduced at the sanle powder amount．It needed increase the powder amount to reach the sanle adhesive effect．Third，for higher water absorption ceramic tile，adhesive strength after 20 min was disadvantaged in five kinds of strength．For lower water absorption ceramic tile，adhesive strength after thermal aging and freeze-thaw cycles were disadvantaged．