Development of a Field Exposure Site for Predicting and Mitigating ASR

Davis, Doddridge E; Deschenes Jr, Richard; Hale, W. Micah

i

Development of a Field Exposure Site for Predicting and Mitigating ASR

2018-04-01
By Davis, Doddridge E ; Deschenes Jr, Richard ; Hale, W. Micah

File Language:

English

Details

Creators:

Davis, Doddridge E ; Deschenes Jr, Richard ; Hale, W. Micah
Corporate Creators:

University of Arkansas, Fayetteville. Department of Civil Engineering
Corporate Contributors:

Arkansas. Department of Transportation
Subject/TRT Terms:
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Final
Corporate Publisher:

University of Arkansas, Fayetteville. Dept. of Civil Engineering
Abstract:

Alkali-silica reaction (ASR) is an expansive reaction between the alkalis in the cement and reactive silica in the aggregates. Arkansas is currently witnessing the detrimental effects of ASR at various locations in Arkansas. There has been a significant amount of research conducted using accelerated mortar bar tests (ASTM C1260 and AASHTO T303) and concrete prism tests (ASTM C1293) to determine if specific concrete mixtures show potential for alkali-silica reactivity. More recently, however, outdoor field exposure sites have become popular methods of predicting ASR damage. These sites represent field conditions much better than ASTM C1293 and thus become better predictors for finding reactive aggregates. For this research project, eighteen coarse and three fine aggregates available in Arkansas were collected and tested. The reactivity of these materials were measured using the two standard laboratory methods, the Accelerated Mortar Bar Test (AMBT) ASTM C1260 and the Concrete Prism Test (CPT) ASTM C1293. Exposure block tests, deemed to reflect realistic field results, were also conducted.
Format:

PDF
Download URL:

https://rosap.ntl.bts.gov/view/dot/44123/dot_44123_DS1.pdf
File Type:

[PDF - 1.26 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha256:6d8f1f06cdaaa645f6d0f0ec5055c3b36d73207ee60721fef4a06b297ffeb680

File Language:

English

ON THIS PAGE

Details

Found an issue?

Send us an email at:

publishinghd@cdc.gov

ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners. As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.