| 一种非传统高分子粘结剂改良黏土的强度试验研究 |
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| 引用本文： | 李明阳,祁长青,卜凡,王梓,卢洪宁.一种非传统高分子粘结剂改良黏土的强度试验研究[J].河北工程大学学报,2021,38(2):72-78. |
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| 作者姓名： | 李明阳 祁长青 卜凡 王梓 卢洪宁 |
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| 作者单位： | 河海大学 地球科学与工程学院, 江苏 南京 211100,河海大学 地球科学与工程学院, 江苏 南京 211100,河海大学 地球科学与工程学院, 江苏 南京 211100,河海大学 地球科学与工程学院, 江苏 南京 211100,河海大学 地球科学与工程学院, 江苏 南京 211100 |
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| 基金项目： | 国家自然科学基金面上项目（41877212） |
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| 摘 要： | 通过室内无侧限抗压强度试验和直接剪切试验研究了不同浓度粘结剂对黏土强度的影响。试验结果表明，粘结剂的加入可以提高黏土体的强度。改良后，黏土的无侧限抗压强度和黏聚力随养护时间的增加均有提高；当养护时间一定时，随着粘结剂含量的增加，黏土的黏聚力和无侧限抗压强度也随之增加，当浓度增加至3%时，黏土的无侧限抗压强度相比2%浓度添加量出现下降。
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| 关 键 词： | 黏土 PVAc型粘结剂 无侧限抗压强度 抗剪强度 |
| 收稿时间： | 2021/5/20 0:00:00 |
Experimental Study on Strength of Clay Improved by a Non-Traditional Polymer Binder |
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| Authors: | LI Mingyang QI Changqing BU Fan WANG Zi and LU Hongning |
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| Affiliation: | School of Earth Sciences and Engineering, Hohai University, Nanjing, Jiangsu 211100, China,School of Earth Sciences and Engineering, Hohai University, Nanjing, Jiangsu 211100, China,School of Earth Sciences and Engineering, Hohai University, Nanjing, Jiangsu 211100, China,School of Earth Sciences and Engineering, Hohai University, Nanjing, Jiangsu 211100, China and School of Earth Sciences and Engineering, Hohai University, Nanjing, Jiangsu 211100, China |
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| Abstract: | The effect of different concentration of PVAc binder on the strength of clay was studied by unconfined compressive strength test and direct shear test. The test results show that: PVAc binder can improve the strength of clay;the unconfined compressive strength and shear strength of clay improved by PVAc binder increase with the increase of curing time;When the curing time is fixed, the cohesion and unconfined compressive strength of clay increase with the increase of PVAc binder content. While the concentration increases to 3%, the unconfined compressive strength of clay decreases compared with 2% concentration. |
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| Keywords: | clay PVAc binder unconfined compressive strength shear strength |
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