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新型墙体材料与施工
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低收缩灰渣混凝土空心隔墙板的制备

作者：杨奉源1，2，陈洪宇1

关键字：低,收缩,灰渣,混凝土,空心,隔,墙板,的,制备,

　
（1.四川省川铁枕梁工程有限公司，四川 成都  610081；
2.西南科技大学 材料科学与工程学院，四川 绵阳  621010）
    摘要：从干燥收缩的机理出发，通过改变墙板混凝土微观孔结构、减小孔溶液表面张力2个方面进行低干燥收缩墙板的研究。主要研究了养护制度、内掺及喷洒减缩剂、碳化处理等单一措施及复合措施对墙板干燥收缩的影响。结果表明：快蒸养护、慢蒸养护、掺减缩剂、碳化处理、养护与碳化复合、减缩剂与碳化复合均能降低墙板的干缩值，其中效果最好的是后2种复合措施，减缩幅度分别达36%和40%。
    关键词：墙板；干燥收缩；养护制度；碳化；减缩剂
    中图分类号：TU528.72        文献标识码：A        文章编号：1001-702X（2019）10-0044-04
 
Preparation of low shrinkage hollow concrete wallboard contained solid wastes for partition wall
YANG Fengyuan1，2，CHEN Hongyu1
（1.Sichuan Railway Zhenliang Engineering Co. Ltd.，Chengdu 610081，China；
2.School of Materials Science and Engineering，Southwest University of Science and Technology，Mianyang 621010，China）
    Abstract：Based on the mechanism of drying shrinkage，the study of low drying shrinkage wallboard was carried out by changing the micro pore structure and reducing the pore solution surface tension of concrete. The effects of single factor and coupling factors on the dry shrinkage of wallboards，such as curing regime，addition and spraying shrinkage reducing agent，carbonation treatment were mainly studied. The results showed that quick and slow steaming curing regime，shrinkage reducing agent，carbonation treatment，coupling of steaming and carbonation，and coupling of shrinkage reducing agent and carbonation can reduce the dry shrinkage value of wallboard. Especially the last two coupling measures，the shrinkage-reducing amplitude is 36% and 40% respectively.
    Key words：wallboard，drying shrinkage，curing regime，carbonation，shrinkage reducing agent