黄河中游流域土壤活性调查及其激活研究  

The Survey on the Soil Activity in the Middle Reaches of the Yellow River and Its Activation Research

作　　者：郭璞[1,2] 杨久俊[1,3] 

机构地区：[1]郑州大学材料科学与工程学院,郑州450052 [2]山西三江工程检测有限公司,太原030006 [3]天津城市建设学院,天津300384

出　　处：《价值工程》2011年第20期1-3,共3页Value Engineering

基　　金：国家自然科学基金(50472030)"部分降解泥沙固结植被复合材料及其作用机理的研究"

摘　　要：研究了氢氧化钠、水玻璃、氢氟酸和磷酸对黄河中游不同地区土壤的侵蚀激活效果,结果表明,磷酸对土有很好的激活作用,掺入磷酸的土做成试件抗压强度较不掺加磷酸的土有很大提高,并且随着磷酸掺量的增多,强度继续增长,耐水性也有很大改善。红外及微观分析表明,磷酸能够改变土粒表面的羟基团,并且磷酸与土中的碳酸盐等生成肉丝状的磷酸钙晶体,分布在土粒的周围,胶结土壤。The paper studies the erosion activation effect of sodium hydroxide,sodium silicate,hydrofluoric acid and phosphoric acid on the soil in different parts of the middle reaches of Yellow River.As the experiment shows,samples composed of soil added into phosphoric acid show higher compressive strength than it composed of pure soil.The more phosphoric acid in it,the higher compressive strength and better water-resistance it shows.The infrared and microcosmic analysis shows that phosphoric acid,which can change the hydroxyl on the surface of soil,reacts with calcium carbonate in the soil to create calcium phosphate crystalloid,which distributes around soil particles to cement the soil.

关 键 词：黄河中游 土壤 磷酸 激活 

分 类 号：TB3[一般工业技术—材料科学与工程]