装配式建筑水泥基灌浆料性能试验研究  

Test Research on Performance of Cement-Based Grouting Material for Prefabricated Construction

作　　者：朱燕[1,2] 刘加坤 陈佳佳[3] ZHU Yan;LIU Jiakun;CHEN Jiajia(Architectural Engineering Institute of Nantong Vocational University, Nantong 226007, China;Geotechnical Research Institute of Hohai University, Nanjing 210098, China;Jiangsu Nantong Liujian Construction Group Co., Ltd., Nantong 226500, China)

机构地区：[1]南通职业大学建筑工程学院,江苏南通226007 [2]河海大学岩土工程研究所,江苏南京210098 [3]江苏南通六建建设集团有限公司,江苏南通226500

出　　处：《南通大学学报（自然科学版）》2018年第1期44-49,共6页Journal of Nantong University(Natural Science Edition)　

基　　金：南通市科技计划项目(MS12015032);江苏省大学生创新创业训练计划项目(201711052010Y);江苏高校品牌专业建设工程资助项目(PPZY2015B183)

摘　　要：以普通硅酸盐水泥、砂、矿物掺合料(粉煤灰、硅灰)以及外加剂(减水剂、缓凝剂、膨胀剂)为主要原料配制成装配式建筑水泥基灌浆料.通过检测合理配合比下、不同水灰比的水泥基灌浆料的流动性、强度、膨胀性、泌水率、总氯离子含量、电通量和氯离子扩散系数等指标来考察其性能.结果表明,当砂最大粒径为2.36 mm、水灰比为0.24~0.30、砂灰比为1∶1、粉煤灰掺量为8%、硅灰掺量为5%、减水剂掺量为0.6%、缓凝剂掺量为0.1%、膨胀剂掺量为8%时,水泥基灌浆料的各项性能均满足装配式建筑灌浆料的要求.最后结合现场工程实测资料,对氯离子环境下水泥基灌浆料的最小保护层厚度进行了推算.The cement foundation grouting material was made of ordinary silicate cement, sand, mineral admixture（fly ash and silica ash） and additive（water reducer, coagulant and expansion agent） as the main raw materials. The performance of cement based slurry with reasonable matching ratio and different water ash ratio was investigated by measuring the fluidity, strength, expansibility, water rate, total chloride ion content, electric flux and chloride ion diffusion coefficient. The test results showed that the performance of the cement foundation grouting material meets the requirements of the assembled building grouting material when the maximum diameter of sand is 2.36 mm, the ratio of water ash to water ash is 0.24 to 0.30, the ratio of sand ash to ash is 1 ∶ 1, the amount of fly ash is 8%, the amount of silica ash is 5%, the amount of water reducing agent is 0.6%, the amount of water reducing agent is 0.1%,and the amount of swelling agent is 8%. Finally, the minimum protective layer thickness of cement-based slurry in chloride ion environment was calculated based on the field engineering data.

关 键 词：装配式建筑 水泥基灌浆材料 耐久性 最小保护层 

分 类 号：TU528[建筑科学—建筑技术科学]