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ORIGINAL RESEARCH article

Front. Mech. Eng.
Sec. Solid and Structural Mechanics
Volume 10 - 2024 | doi: 10.3389/fmech.2024.1461374
This article is part of the Research Topic Failure, Fracture, and Fatigue of Soft Materials View all articles

Research on the Factors Affecting the Compressive Strength of Rubber Powder Modified Cement-Stabilized Crushed Stone Based on Orthogonal Experiments

Provisionally accepted
Feng Xu Feng Xu Xuanxuan Zhu Xuanxuan Zhu Qiju Gao Qiju Gao *
  • School of Civil Engineering, Suzhou University of Science and Technology, Suzhou, China

The final, formatted version of the article will be published soon.

    Based on an orthogonal experimental design, this study introduces rubber powder particle size alongside rubber powder content, aggregate gradation, and cement content as factors. A total of 16 mix proportions were formulated. For each mixture, compaction tests and unconfined compressive strength (UCS) tests were conducted. Using Statistical Product and Service Solutions (SPSS) software, a multifactor variance analysis was performed to determine the influence levels of the four factors on maximum dry density and compressive strength. The optimal mix proportion was selected based on compressive strength. The results indicate that aggregate gradation and rubber powder content significantly affect the maximum dry density of the mixture, with aggregate gradation having the greatest impact. Rubber powder content has the most substantial effect on compressive strength, while rubber particle size has the least influence. The optimal formulation is 7% cement content, 30-mesh rubber powder, 0.5% rubber powder content, and a skeletal dense gradation close to the median.

    Keywords: Cement-stabilized crushed stone, Rubber powder, Gradation, Compressive Strength, Orthogonal experiment

    Received: 14 Aug 2024; Accepted: 16 Oct 2024.

    Copyright: © 2024 Xu, Zhu and Gao. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Qiju Gao, School of Civil Engineering, Suzhou University of Science and Technology, Suzhou, China

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