Volume 40 Issue 2
Apr.  2026
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Article Navigation >  GEOTECHNICAL ENGINEERING TECHNIQUE  > 2026  >  40(2): 287-296
XUAN Xiaoxin, LIU Wei, YAO Yanbo, YANG Guowei, YE Zi. Road performance and engineering application of recycled soil-aggregate mixed green base material[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2026, 40(2): 287-296. doi: 10.20265/j.cnki.issn.1007-2993.2025-0069
Citation: XUAN Xiaoxin, LIU Wei, YAO Yanbo, YANG Guowei, YE Zi. Road performance and engineering application of recycled soil-aggregate mixed green base material[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2026, 40(2): 287-296. doi: 10.20265/j.cnki.issn.1007-2993.2025-0069
shu

Road performance and engineering application of recycled soil-aggregate mixed green base material

doi: 10.20265/j.cnki.issn.1007-2993.2025-0069
  • 1.

    Shaoxing City Development Group Co., Ltd., Shaoxing 312099, Zhejiang, China

  • 2.

    Shaoxing Science and Technology Industry Investment Co., Ltd., Shaoxing 312099, Zhejiang, China

  • 3.

    Shaoxing Lvcheng New Material Manufacturing Co., Ltd., Shaoxing 312066, Zhejiang, China

  • 4.

    Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, Jiangsu, China

  • Received Date: 2025-02-18
  • Accepted Date: 2025-06-26
  • Rev Recd Date: 2025-06-11
    • Available Online: 2026-04-09
  • Publish Date: 2026-04-09
    Abstract
  • In the context of the rapid development of "Carbon Peaking and Carbon Neutrality Goals" and urbanization, on the one hand, the mining of high-quality stone resources is restricted, resulting in production cuts. On the other hand, the demand for road fillers increases, the emissions of construction waste soil and waste concrete stone will remain high. To address the two major engineering issues of the shortage of high-quality stone materials and the difficulty in disposing of waste soil, a high-volume mixture of improved waste soil and waste stone materials is used to replace the aggregate components in the cement stabilized layer, preparing a recycled soil-stone mixed green base material with excellent road performance. By combining unconfined compressive strength (UCS), flexural tensile strength, elastic modulus, and water stability tests, the appropriate soil-stone mixture ratio is explored to prepare green base materials with good strength and durability. Based on the Box-Behnken response surface method, through variance analysis, it is proposed that a soil-stone ratio of 4:6, a cement content of 6%, and a material compaction degree of 98% are the optimal application scheme. The results of indoor tests are extended to large-scale fill material improvement factories, achieving intensive production of base materials and application in test sections. It is found that the on-site flexural deflection, coring, and UCS testing results are good, meeting the design requirements, and verifying the feasibility of the recycled soil-stone mixed green base material.

     

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