植被混凝土有机质类型与配比的合理选取  

Selection tests for type and ratio of organic matter in vegetation concrete

作　　者：刘大翔[1,2] 李少丽[3] 许文年[3] 程尊兰[1] 

机构地区：[1]中国科学院.水利部成都山地灾害与环境研究所山地灾害与地表过程重点实验室,四川成都610041 [2]中国科学院研究生院,北京100049 [3]三峡大学三峡库区地质灾害教育部重点实验室,湖北宜昌443002

出　　处：《水利水电科技进展》2012年第4期37-40,54,共5页Advances in Science and Technology of Water Resources

基　　金：国家自然科学基金(40971015);国家"十一五"科技支撑计划(2009BAK56B05);中国科学院知识创新工程(KZCX2-YW-Q03-5-1)

摘　　要：为同时保证植被根系生长需求和坡面稳定，需通过试验确定植被混凝土有机质合理类型与配比。选取4种常见富含有机质材料（稻壳、锯末、玉米酒糟、稻谷酒糟），以有机质类型和掺入量为变量，分别试验研究了其对植被混凝土孔隙率和无侧限抗压强度的影响。试验结果表明：植被混凝土孔隙率增幅随有机质配比增加而逐渐减小，无侧限抗压强度降幅则随有机质配比增加而增大；有机质的合理类型为小粒径粉末状有机质，合理配比范围为7％～9％。In order to simultaneously guarantee the root growth needs of vegetation and slope stability, proper types and ratios have to be determined through selection tests. Four kinds of common organic matter （ rice husk, sawdust, corn vinasse, and rice vinasse） were selected to investigate the influence of different organic matter types and ratios on the porosity and unconfined compression strength of vegetation concrete. The test results show that while the porosity decreases with an increase in organic matter ratio, the unconfined compression strength increases with increasing organic matter ratio. The most reasonable type of organic matter is found to be the small size powder with a ratio ranging from 7% to 9%.

关 键 词：植被混凝土 有机质配比 孔隙率 无侧限抗压强度 

分 类 号：TU528[建筑科学—建筑技术科学]