摘要
利用钢渣、粉煤灰、煤矸石及少量化学物质制备工业废渣复合凝胶材料,用于某高速公路膨胀土进行改良试验。研究表明,工业废渣复合胶凝材料对膨胀土具有良好的固化效果,当工业废渣复合胶凝材料掺量≥4.5%时,胀缩总率<0.7%,CBR>12%,满足路基设计规范的相关要求。并进行了工业废渣复合胶凝材料稳定膨胀土底基层试验路施工,取得了良好的试验效果。
The industrial waste residue composite cementitious material was prepared from steel slag,fly ash,coal gangue and a small amount of chemical substances.The research showed that the composite cementitious material had good curing effect on expansive soil.When the content was≥4.5%,the loaded expansion rate was less than 0.7%,CBR was more than 12%,which met the relevant requirements of subgrade design specifications.The test road construction of the material stabilized expansive soil subbase has achieved good test results.
作者
刘建锋
Liu Jianfeng(Zhengzhou Highway Development Center,Zhengzhou 450052,China)
出处
《广东土木与建筑》
2020年第8期109-112,共4页
Guangdong Architecture Civil Engineering
关键词
工业废渣复合胶凝材料
膨胀土
胀缩总率
应用试验
industrial waste residue composite cementitious material
expansive soil
loaded expansion rate
application test
