Evaluation and Comparison of Freeze-Thaw Tests and Air Void Analysis of Pervious Concrete

Mia Schou Møller Lund, Kurt Kielsgaard Hansen, John T. Kevern, Vernon R. Schaefer

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Abstract

Pearl-Chain Bridge technology is an innovative precast arch bridge solution which uses pervious concrete as fill material. To ensure longevity of the bridge superstructure it is necessary that the per-vious concrete fill is designed to be freeze-thaw durable; however, no standards exist on how to eval-uate the freeze-thaw resistance of fresh or hardened pervious concrete and correspondingly what constitutes acceptable freeze-thaw durability. A greater understanding of the correlation between the freeze-thaw performance and the air void structure of pervious concrete is needed. In the present study six pervious concrete mixes were exposed to freeze-thaw testing, and their air void structure was analyzed using an automated linear-traverse method. It was found that there is a miscorrelation between these two test methods in their assumption of whether or not the large interconnected voids effectively relieve the pressure when water freezes.
Original languageEnglish
Title of host publicationProceedings of the 11th fib International PhD Symposium in Civil Engineering
Number of pages8
Publication date2016
Pages1-8
Publication statusPublished - 2016
Event11th fib International PhD Symposium in Civil Engineering - Tokyo, Japan
Duration: 29 Aug 201631 Aug 2016
Conference number: 11

Conference

Conference11th fib International PhD Symposium in Civil Engineering
Number11
Country/TerritoryJapan
CityTokyo
Period29/08/201631/08/2016

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