摘要
以长深高速一处取土场取粉砂作为试验土样,在不同掺量,不同养生龄期下利用液塑限联合测定法进行界限含水率试验。试验设定0、3%、6%、9%、12%、15%六个掺量,1d、28d两个养生龄期。试验结果表明:木质素改良土的液塑限会随着木质素掺量的增加而减小,1d龄期的木质素改良土塑性指数会先有小幅度升高,而后还会降低。随着养生龄期的增长,液限与塑限则整体会有下降趋势,而塑性指数则会趋于6左右。
The soil sample was collected from a site with long depth and high speed as the test soil sample. The test was set at 0, 3%, 6%, 9%, 12%, 15% and two healthy ages at 1d and 28d. The experimental results show that;The liquid plasticity limit of lignin improved soil will decrease with the increase of the content of lignin, and the plasticity index of lignin improved soil at 1d will increase slightly and then decrease. With the growth of health age, the liquid limit and plastic limit will have a downward trend, and the plasticity index will tend to be around 6.
作者
付星
董伟智
欧阳云
Xing Fu;Weizhi Dong;Yangyun Ou(School of Transportation Science and Engineering, Jilin Jianzhu University, Changchun 130118, China)
出处
《青海交通科技》
2018年第6期67-69,共3页
Qinghai Transportation Science and Technology
关键词
木质素
改良土
液塑限
lignin
Improved soil
liquid plastic limit
