United States Department of Transportation
i
Inspection guide for column splice regions affected by premature concrete deterioration.
-
2016-07-01
[PDF-3.16 MB]
Details:
-
Alternative Title:Project title: lap splice and development length performance in ASR and/or DEF damaged;concrete elements.;
-
Creators:
-
Corporate Creators:
-
Corporate Contributors:
-
Subject/TRT Terms:
-
Publication/ Report Number:
-
Resource Type:
-
Geographical Coverage:
-
Corporate Publisher:
-
Abstract:This guideline aims to help bridge inspectors and engineers in identifying and assessing the
capability of reinforced concrete column splice regions affected by varying degrees of premature
concrete deterioration due to alkali-silica reaction (ASR) and delayed ettringite formation (DEF).
This guideline is a condensed version of the final project reports by Bracci et al. (2012) and
Bracci (2014), and also papers by Eck Olave et al. (2014a, 2014b). The author strongly
encourages interested readers to review the final project reports and papers for more details and
further explanations.
This guideline begins by providing a brief overview of ASR and DEF, along with short
summaries of the relevant literature from technical reports and journal publications. To assist
bridge inspectors and engineers, some representative cracking observed in field structures
throughout Texas is provided. Next, a summary of the experimental program performed as part
of this research highlights the specimen exposure program (including concrete expansion and
crack width measurements) and the results of the structural load testing of column splice
specimens with varying degrees of primarily ASR deterioration. Findings and recommendations
of the research are summarized at the end of the report.
-
Format:
-
Funding:
-
Collection(s):
-
Main Document Checksum:
-
Download URL:
-
File Type:
