水泥改性生土砌块植生性及机理研究

关键字：改性生土砌块,植生性,粒度,加速碳化

（华北水利水电大学 土木与交通学院，河南 郑州  450045）
 

    摘要：生土材料由于其优良的可再生性广为利用，经过水泥改性的生土砌块可改善其强度和耐水性，但对其可再生性有不利影响。实验研究了生土改性配比、粉碎粒度和养护环境对改性生土砌块植生性的影响，并对其机理进行了研究。结果表明，大部分耐碱植物可在改性后生土砌块颗粒中正常生长，在加速碳化之后生长状态有显著的改善，而不同植物对生土颗粒粒度的适应性存在差别。
    关键词：改性生土砌块；植生性；粒度；加速碳化
    中图分类号：TU526          文献标识码：A          文章编号：1001-702X（2017）06-0048-04

Study on plant-growing ability and mechanism of cement modified raw soil blocks
SHI Yanke，MA Juntao
（School of Civil Engineering and Communication，North China University of Water Resources and Electric Power，Zhengzhou 450045，China）

    Abstract：Based on the excellent recycling ability，raw soil materials are used widely. Cement modified raw soil blocks express better strength and water resistance，while the recycling ability decreases. Effects of different mix proportioning，particle sizes and curing environments are tested and the mechanism is studied. The results show that most of alkali resistant plants grow healthily in modified raw soil particles，while the growing state improves obviously after accelerating carbonation. Meanwhile，different plants adapt to different raw soil particle sizes.
    Key words：modified raw soil blocks，plant-growing ability，particle size，accelerating carbonation