Project Information
Project ID:
FHWA-PROJ-11-0069
Project Status:
Completed
Start Date:
Saturday, October 1, 2011
End Date:
Saturday, December 31, 2016
FHWA Program:
Infrastructure
FHWA Subprogram:
Pavement and Materials
FHWA Topics:
Roads and Bridges--Pavement and Materials; Research/Technologies--Turner-Fairbank Highway Research Center (TFHRC)
TRT Terms:
Concrete Aggregates; Alkali Silica Reactions; Spectroscopy; Infrastructure; Research; Pavements
FHWA Discipline:
Pavement and Materials
TRB Subject Area:
Pavements
Contact Information
First Name:
Terry
Last Name:
Arnold
Telephone:
(202) 493-3305
Email Address:
Team:
Infrastructure Materials Team
Office:
Office of Infrastructure Research and Development
Office Code:
HRDI-10
Project Details
Project Description:
The broad objective of this project is to understand the fundamental changes that take place when the alkali-silica reaction is accelerated. It is anticipated that this research will be instrumental to providing fundamental information regarding changes induced in the mechanism of the alkali-silica reactivity (ASR) reaction by accelerating it under aggressive laboratory conditions. This will in turn aid in the design of a more reliable rapid test method with better correlation to field performance.
Deliverables
Deliverable Name:
Test to evaluate aggregates' potential for forming alkali-silica reactivity (ASR) gel
Deliverable Type:
Research report or guidelines
Deliverable Description:
The approach involves chemically attacking the aggregate and evaluating the products. Soluble Si will be examined using x-ray fluorescence (XRF), and the presence of alkali-silica reactivity (ASR) will be determined using Raman spectroscopy.