Scholarlink

<p>Characterizing and selecting traditional and non-conventional Unbound Granular materials (UGMs) under vehicular transient loadings without incremental collapse is a daunting task. This Study attempted to develop a two-stage approach for selecting hybrid UGMs, commonly referred to as traditional aggregates blended with Steel slag and Recycled Asphalt Pavement (RAP). Primarily, the modified Shakedown criteria were developed to predict the Permanent Deformation (PD) characteristics using Multiple Repeated Load Triaxial Tests on nine conventional and six hybrid mixes (HM), considering distinct loading cycles, deviatoric Stress, moisture content, and constant confining Pressure. Furthermore, a life-cycle assessment was conducted for the selected UGMs to determine their environmental indicators. The slope of the PD curve is directly proportional to the rate of permanent strain accumulation per load cycle. The analysis of test results depicted that the new shakedown limits are as follows: Range A (PD &lt; 1.0%), Range B (1.0% &lt; PD &lt; 2.0%), and Range C (PD &gt; 2.0%). Steel slag, RAP, HM2, and HM1 mixes yielded sustainable, structurally robust mixes. Therefore, the suggested two-stage approach enables the selection of robust UGMs.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Two-stage approach for selection of hybrid unbound granular materials using shakedown criteria and life cycle assessment

  • 期刊论文

  • 发表日期：

    2026年4月2日

查看全文
  • Ashish Mishra,
  • Sunny Deol Guzzarlapudi

摘要

Characterizing and selecting traditional and non-conventional Unbound Granular materials (UGMs) under vehicular transient loadings without incremental collapse is a daunting task. This Study attempted to develop a two-stage approach for selecting hybrid UGMs, commonly referred to as traditional aggregates blended with Steel slag and Recycled Asphalt Pavement (RAP). Primarily, the modified Shakedown criteria were developed to predict the Permanent Deformation (PD) characteristics using Multiple Repeated Load Triaxial Tests on nine conventional and six hybrid mixes (HM), considering distinct loading cycles, deviatoric Stress, moisture content, and constant confining Pressure. Furthermore, a life-cycle assessment was conducted for the selected UGMs to determine their environmental indicators. The slope of the PD curve is directly proportional to the rate of permanent strain accumulation per load cycle. The analysis of test results depicted that the new shakedown limits are as follows: Range A (PD < 1.0%), Range B (1.0% < PD < 2.0%), and Range C (PD > 2.0%). Steel slag, RAP, HM2, and HM1 mixes yielded sustainable, structurally robust mixes. Therefore, the suggested two-stage approach enables the selection of robust UGMs.