Assessing Risk of D-Cracking in Concrete Aggregates
Portland cement concrete pavements in the midwestern United States (US) can suffer premature deterioration due to so-called D-cracking. One of the causes of this distress is that the pore size distribution within the aggregate will readily absorb water, but prevent it from evaporating due to surface tension effects. Saturated aggregates that are subjected to freezing will expand and crack, leading to damage in the pavement, starting near sawn joints. There are also some chemical effects, but these are outside the scope of this work. The aim of this work is to conduct a proof-of-concept assessment of some innovative alternative approaches to assessing the risk of D-cracking in aggregates that will be rapid, cost-effective, and reliable.
- Record URL:
- Record URL:
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Language
- English
Project
- Status: Completed
- Funding: $25000
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Contract Numbers:
DTRT13-G-UTC37
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Sponsor Organizations:
Office of the Assistant Secretary for Research and Technology
University Transportation Centers Program
Department of Transportation
Washington, DC United States 20590 -
Performing Organizations:
National Concrete Pavement Technology Center
2711 South Loop Drive Suite 4700
Ames, Iowa United States 50010 -
Principal Investigators:
Taylor, Peter
Hasiuk, Franek
- Start Date: 20150401
- Expected Completion Date: 20160531
- Actual Completion Date: 0
Subject/Index Terms
- TRT Terms: Aggregates; Concrete pavements; D cracking; Deterioration; Freeze thaw durability; Pavement joints; Portland cement concrete
- Geographic Terms: Midwest United States
- Subject Areas: Construction; Highways; Materials;
Filing Info
- Accession Number: 01578159
- Record Type: Research project
- Source Agency: Midwest Transportation Center
- Contract Numbers: DTRT13-G-UTC37
- Files: UTC, RIP
- Created Date: Oct 14 2015 12:52PM