Freezing-and-Thawing Durability of Pervious Concrete under Simulated Field Conditions

ABOUT THE INTERNATIONAL CONCRETE ABSTRACTS PORTAL

  • The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.

International Concrete Abstracts Portal

  


Title: Freezing-and-Thawing Durability of Pervious Concrete under Simulated Field Conditions

Author(s): Zhifu Yang

Publication: Materials Journal

Volume: 108

Issue: 2

Appears on pages(s): 187-195

Keywords: deicing salts; fiber reinforcement; pervious concrete; silica fume; slow freezing and thawing; wet-dry cycles

Date: 3/1/2011

Abstract:
This research investigates the durability of pervious concrete under simulated field conditions, including slow cyclic freezing and thawing, wet-dry environments, and salt applications. Specifically, this research examines the effects of materials and proportions and curing conditions on the freezing-and-thawing durability of pervious concrete. Generally, air curing causes a dramatic reduction in the freezing-and-thawing durability as compared with water curing. Silica fume additions are observed to improve the performance of water-cured pervious concrete during slow freezing and thawing while causing a significant drop in the performance of air-cured specimens. Polypropylene fibers are seen to enhance the resistance of pervious concrete to repeated freezing and thawing, whereas salt applications are noted to aggravate the deterioration. In addition, wet-dry cycles are found to slow down the freezing-and-thawing damage development when the duration of the wet cycle is less than 3 days.




  

Please enter this 5 digit unlock code on the web page.