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Sciences in Cold and Arid Regions ›› 2015, Vol. 7 ›› Issue (5): 482–491.doi: 10.3724/SP.J.1226.2015.00482

• ARTICLES • 上一篇    

Freeze-thaw performance of chemically stabilized natural and recycled highway materials

Tuncer B. Edil1, Bora Cetin2   

  1. 1. Department of Civil and Environmental Engineering, University of Wisconsin, Madison, WI, 53706, USA
    2. College of Engineering, University of Georgia, Athens, GA, 30602, USA
  • 收稿日期:2015-03-19 修回日期:2015-05-29 发布日期:2018-11-23
  • 通讯作者: Tuncer B. Edil, Professor Emeritus of Department of Civil and Environmental Engineering, University of Wisconsin, Madison, WI, 53706, USA. Tel: +1-608-262-3225; E-mail: tbedil@wisc.edu E-mail:tbedil@wisc.edu

Freeze-thaw performance of chemically stabilized natural and recycled highway materials

Tuncer B. Edil1, Bora Cetin2   

  1. 1. Department of Civil and Environmental Engineering, University of Wisconsin, Madison, WI, 53706, USA
    2. College of Engineering, University of Georgia, Athens, GA, 30602, USA
  • Received:2015-03-19 Revised:2015-05-29 Published:2018-11-23
  • Contact: Tuncer B. Edil, Professor Emeritus of Department of Civil and Environmental Engineering, University of Wisconsin, Madison, WI, 53706, USA. Tel: +1-608-262-3225; E-mail: tbedil@wisc.edu E-mail:tbedil@wisc.edu

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摘要： This article provides an overview of several previous studies that investigated the stiffness and strength performance of chemically stabilized roadway materials under winter conditions (freeze-thaw cycling). The objective of this research was to understand the behavior of different materials stabilized with different type of binders when they were subjected to freeze-thaw cycling. Nine different materials including natural soils (organic soil, clay, silt, sand, and road surface gravel), reclaimed pavement material, and recycled asphalt pavement stabilized with nine different binders (five different fly ashes, lime, cement, lime kiln dust, cement kiln dust) were discussed. This article investigated how the volume, resilient modulus and unconfined compressive strength of soils/materials stabilized with different binders change in response to freeze-thaw cycling. Overall, the review results indicate that the stiffness and strength of all stabilized materials decrease somewhat with freeze-thaw cycling. However, the reduced strength and stiffness of stabilized materials after freeze-thaw cycling was still higher than that of unstabilized-unfrozen original soils and materials. In addition, materials stabilized with cement kiln dust provided the best performance against freeze-thaw cycling.

关键词: freeze-thaw, soil stabilization, cement, fly ash, lime

Abstract: This article provides an overview of several previous studies that investigated the stiffness and strength performance of chemically stabilized roadway materials under winter conditions (freeze-thaw cycling). The objective of this research was to understand the behavior of different materials stabilized with different type of binders when they were subjected to freeze-thaw cycling. Nine different materials including natural soils (organic soil, clay, silt, sand, and road surface gravel), reclaimed pavement material, and recycled asphalt pavement stabilized with nine different binders (five different fly ashes, lime, cement, lime kiln dust, cement kiln dust) were discussed. This article investigated how the volume, resilient modulus and unconfined compressive strength of soils/materials stabilized with different binders change in response to freeze-thaw cycling. Overall, the review results indicate that the stiffness and strength of all stabilized materials decrease somewhat with freeze-thaw cycling. However, the reduced strength and stiffness of stabilized materials after freeze-thaw cycling was still higher than that of unstabilized-unfrozen original soils and materials. In addition, materials stabilized with cement kiln dust provided the best performance against freeze-thaw cycling.

Key words: freeze-thaw, soil stabilization, cement, fly ash, lime

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