土工基础

土工基础 ›› 2023, Vol. 37 ›› Issue (2): 315-317.

• 测试技术 • 上一篇    下一篇

水玻璃改性再生集料无侧限抗压强度试验研究

尉 盟1,2，方季圆3，赵丽君1,2，宋 科1   

  1. （1.绍兴市城投再生资源有限公司，浙江绍兴  312000；2.绍兴市城市建设投资集团有限公司，浙江绍兴 312000；3.绍兴文理学院，浙江绍兴 312000）
  • 收稿日期:2021-10-14 修回日期:2021-11-09 出版日期:2023-04-30 发布日期:2023-04-20
  • 作者简介:尉盟（1990-），男，工程师，研究方向为岩土工程。
  • 基金资助:
    浙江省建设科研项目（2020K152）

Experimental Study on Unconfined Compressive Strength of Water Glass Modified Recycled Aggregates

WEI Meng1,2, FANG Jiyuan3, ZHAO Lijun1,2， SONG Ke2   

  1. (1.Shaoxing Urban Investment Renewable Resources Co. Ltd., Shaoxing 312000；
    2.Shaoxing Urban Construction Investment Group Co. Ltd., Shaoxing 312000；
    3.Shaoxing College of Arts and Sciences, Shaoxing 312000)
  • Received:2021-10-14 Revised:2021-11-09 Online:2023-04-30 Published:2023-04-20

摘要： 道路拆除路基的固体废弃物，经筛分可形成再生集料。为了探究水玻璃对再生集料的力学改性效果，使用无侧限抗压强度试验来研究不同掺量下水玻璃改性再生集料试样的抗压强度。选取试样的水玻璃掺量分别为再生集料质量的0.04%、0.06%、0.08%、0.1%和0.12%，养护龄期为7 d和28 d。通过掺入水玻璃来改善再生集料的力学性能，试验结果表明：水玻璃加入再生集料中可以明显提升强度，且其应力应变关系满足软化型曲线，水玻璃的最佳掺量为0.08%。研究结论可为道路拆除路基形成再生集料的有效利用提供参考。

关键词: 水玻璃, 再生集料；无侧限抗压强度

Abstract: The recycled aggregates are generated from the old pavement structure removal throughout the sieving and selection process. To study the effect of water glass on the improvement results of the recycled aggregates, the results of the unconfined compressive strength of the improved aggregates with various water glass contents was selected as the index. The water glass additives are the weight of the aggregate of 0.04%, 0.06%, 0.08%, 0.1% and 0.12% with the curing ages of 7 days and 28 days, respectively. The test results indicate that, the strength of the recycled aggregate can be improved by the addition of the water glass. The stress-strain relationship meets the strain soften curve; the optimum water glass content is 0.08%.  

Key words: Water Glass, Recycled Aggregates, Unconfined Compressive Strength

中图分类号: