•  
  •  
 

Experimental study on water stability of sand compound modified mud road

Abstract

Sand compound modified mud, as a coupled medium of sand and soil, differs from traditional modified mud. To further investigate its water stability indicators, orthogonal design was employed to conduct indoor water stability simulation tests (surface infiltration test, underground capillary water test, and dry-wet cycle test) on sand compound modified mud. The water stability of the modified mud was characterized using the change rate of unconfined compressive strength (UCS). The results show that the unconfined compressive strength and water stability of the modified mud were significantly improved. Under different water disturbance conditions, the order of influence of factors such as sea sand content, compaction degree, and curing age on water stability varied. Analysis graphs indicate that all three factors exhibit a positive correlation with water stability. In practical engineering, a combination of sea sand content, compaction degree, and curing age can be comprehensively considered to meet the water stability requirements for modified mud in road applications in the Ningbo region.

Publication Date

5-11-2023

DOI

10.14048/j.issn.1671-2579.2023.02.035

First Page

202

Last Page

208

Submission Date

March 2025

Reference

[1] 张福海, 陈庆, 张晓阳, 等. 海砂–海泥混合料作为海堤填料的可行性试验研究[J]. 岩土工程学报, 2017, 39(S1): 182-186. ZHANG Fuhai, CHEN Qing, ZHANG Xiaoyang, et al. Experimental study on feasibility of sea sand-mud mixture used as seawall filler[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(S1): 182-186. [2] 王启叶楠, 丰土根, 宋健, 等. 淤泥海砂混合料动力特性试验研究[J]. 水运工程, 2017(10): 96-100, 129. WANG Qiyenan, FENG Tugen, SONG Jian, et al. Experimental study on dynamic behavior of subsea sand-clay mixture[J]. Port & Waterway Engineering, 2017(10): 96-100, 129. [3] NA W. Utilization of Portland cement and municipal solid waste incineration fly ash for solidification/stabilization of sewage sludge[J]. Nature Environment and Pollution Technology, 2015, 14: 141-144. [4] ROY A, STEGEMANN J A. Nickel speciation in cement-stabilized/solidified metal treatment filtercakes[J]. Journal of Hazardous Materials, 2017, 321: 353-361. [5] XIN D H, CHAI X L, ZHAO W T. Hybrid cement-assisted dewatering, solidification and stabilization of sewage sludge with high organic content[J]. Journal of Material Cycles and Waste Management, 2016, 18(2): 356-365. [6] CORREIA A A S, VENDA OLIVEIRA P J, CUSTÓDIO D G. Effect of polypropylene fibres on the compressive and tensile strength of a soft soil, artificially stabilised with binders[J]. Geotextiles and Geomembranes, 2015, 43(2): 97-106. [7] 乐金朝, 李新明, 乐旭东. 石灰钢渣稳定土的水稳性试验研究[J]. 建筑材料学报, 2010, 13(6): 773-778. LE JinChao, LI Xinming, LE Xudong. Experimental study on water stability of lime steel slag stabilized soil[J]. Journal of Building Materials, 2010, 13(6): 773-778. [8] 薛颖慎. 滨海淤泥固化填筑路基应用技术研究[D]. 西安: 长安大学, 2015. XUE Yingshen. Study on application technology of coastal silt solidification filling subgrade[D]. Xi’an: Changan University, 2015. [9] 郭增, 李彦红. 基于回归正交试验的赤泥基固化剂改良粉质粘土水稳定性研究[J]. 数学的实践与认识, 2019, 49(5): 315-320. GUO Zeng, LI Yanhong. Study on the stability of silty clay water stabilized by red mud base curing agen based on regression orthogonal test[J]. Mathematics in Practice and Theory, 2019, 49(5): 315-320. [10]交通运输部公路科学研究院.公路土工试验规程:JTG 3430 —2020 [S].北京:人民交通出版社股份有限公司,2020. Test Methods of Soils for Highway Engineering.Test methods of soils for highway engineering::JTG 3430 —2020 [S].Beijing:China Communications Press Co.,Ltd.,2020. [11]交通运输部公路科学研究院 .公路工程无机结合料稳定材料试验规程 ：JTGE51—2009[S].北京：人民交通出版社,2009. Research Institute of Highway Ministry of Transport.Test Methods of Materials Stabilized with Inorganic Binders for Highway Engineering: JTG E51—2009[S]. Beijing: China Communications Press, 2009.

This document is currently not available here.

Share

COinS