Identifying Damage, Predicting Expansion, and Determining the Effectiveness of Sealers on Concrete Affected by Alkali-Silica Reaction and Freeze-Thaw

<p>Premature cracking of the barrier wall and pavement on I-49 south of Fayetteville, Arkansas due to a combination of Alkali-Silica Reaction (ASR) and freeze-thaw has led to ASR and freeze-thaw research at the University of Arkansas. Potential for further expansion (PFET), Damage Rating Index (DRI), and mitigation of freeze-thaw and ASR with sealers testing and results are contained herein. PFET results indicated that the pavement will not continue to expand from ASR. With other interstate pavements deteriorating prematurely throughout Arkansas, DRI has shown that most are damaged not only by ASR but by freeze-thaw too. Recommendations for freeze-thaw’s inclusion into DRI are included. Early results for a sealer that will limit ASR and freeze-thaw expansion are given and have shown that silanes with 40% silane work effectively to reduce ASR and freeze-thaw expansion.</p>

Name thesis:degree_name

Master of Science in Civil Engineering (MSCE)

Level thesis:degree_level

Thesis

Year dc:date.available

2016

Author dc:creator

• Waidner, Matthew Caleb

Advisor dc:contributor.advisor

• Hale, W. Micah

Contributors dc:contributor

• Heymsfield, Ernest
• Wood, Clinton M.

• Applied sciences
• Alkali-silica reaction
• Concrete
• Structural Engineering

Repository record dc:identifier

https://scholarworks.uark.edu/etd/1835

OAI identifier oai:identifier

oai:scholarworks.uark.edu:etd-3374