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高分子吸水树脂加固水泥固化土的路用性能试验研究

赵晓婉,  许益东,  戴迪,  曹天赐,  李逸凡,  彭劼

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文章导航 > 工业建筑  > 2021 >  51(11): 154-158
赵晓婉, 许益东, 戴迪, 曹天赐, 李逸凡, 彭劼. 高分子吸水树脂加固水泥固化土的路用性能试验研究[J]. 工业建筑, 2021, 51(11): 154-158. doi: 10.13204/j.gyjzG20110202
引用本文: 赵晓婉, 许益东, 戴迪, 曹天赐, 李逸凡, 彭劼. 高分子吸水树脂加固水泥固化土的路用性能试验研究[J]. 工业建筑, 2021, 51(11): 154-158. doi: 10.13204/j.gyjzG20110202
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ZHAO Xiaowan, XU Yidong, DAI Di, CAO Tianci, LI Yifan, PENG Jie. EXPERIMENTAL STUDY ON PAVEMENT PERFORMANCES OF CEMENT-STABILIZED SOIL REINFORCED WITH SUPER ABSORBENT POLYMERS[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(11): 154-158. doi: 10.13204/j.gyjzG20110202
Citation: ZHAO Xiaowan, XU Yidong, DAI Di, CAO Tianci, LI Yifan, PENG Jie. EXPERIMENTAL STUDY ON PAVEMENT PERFORMANCES OF CEMENT-STABILIZED SOIL REINFORCED WITH SUPER ABSORBENT POLYMERS[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(11): 154-158. doi: 10.13204/j.gyjzG20110202
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高分子吸水树脂加固水泥固化土的路用性能试验研究

doi: 10.13204/j.gyjzG20110202

  • 1. 河海大学岩土力学与堤坝工程教育部重点实验室, 南京 210098;

  • 2. 江苏省岩土工程技术工程研究中心 (河海大学), 南京 210098;

  • 3. 中交第二公路勘察设计研究院有限公司江苏分公司, 南京 210004;

  • 4. 包钢勘察测绘研究院, 内蒙古包头 014017

详细信息
    作者简介:

    赵晓婉,女,1996年出生,硕士研究生。

    通讯作者:

    彭劼,男,1971年出生,博士,教授,博士生导师,peng-jie@hhu.edu.cn。

EXPERIMENTAL STUDY ON PAVEMENT PERFORMANCES OF CEMENT-STABILIZED SOIL REINFORCED WITH SUPER ABSORBENT POLYMERS

  • 1. Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China;

  • 2. Jiangsu Research Center for Geotechnical Engineering Technology (Hohai University), Nanjing 210098, China;

  • 3. Jiansu Branch, CCCC Second Highway Consultants Corportion Limited, Nanjing 210004, China; 4.Institute of Surveying and Mapping of Baogang Group, Baotou 014017, China

摘要

    摘要
  • 摘要: 水泥固化土普遍耐久性较差。通过对加入高分子吸水树脂(SAP)的水泥固化土进行无侧限抗压试验、压实度试验、干湿循环试验以及CBR试验,对SAP加固水泥固化土的强度、压实度、耐久性等相关路用性能进行分析研究。试验结果表明:掺入SAP可明显提高水泥固化土无侧限抗压强度,最高可达185%;掺入SAP可改善水泥固化土压实特性,最优含水率约提高2%;随着干湿循环次数的增加,SAP、水泥固化土试样的质量损失量会随之减小而无侧限抗压强度可增加至121%,表明SAP可改善水泥固化土的耐久性;掺入SAP会使水泥固化土的加州承载比值略有下降。掺入SAP可明显改善水泥固化土的多项路用性能指标,满足高等级公路的路基填筑要求。
    Abstract: Cement-stabilized soil has the characteristics of poor durability generally. By a series of unconfined compression tests, compactness tests, dry wet cycle tests and CBR tests on cement-stabilized soil mixed with the super absorbent ploymers, the strength, compactness and durability of the cement-stabilized soil reinforced by SAP were analyzed and studied. The experimental results proved that: adding SAP could improve the unconfined compressive strength of cemented soil, up to 185% and improve the compaction characteristics of cement-stabilized soil, the optimal moisture content could be increased by 2%. With the increase of drying and wetting cycles, the mass loss of SAP-cement-stabilized soil could be reduced, while the unconfined compressive strength could be improved by 121%, which indicated that SAP could improve the durability of cement-stabilized soil; the CBR of specimens cemented with cement and SAP were slightly lower than that cemented with cement. Adding SAP could obviously improve many indexes of pavement performances for cement-stabilized soil and meet the requirements of subgrade fillings of high-grade highways.
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  • 收稿日期:  2020-11-02
  • 网络出版日期:  2022-03-29

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