Abstracts
Freeze-Thaw Evaluation of Large Coarse Aggregates
By Staton, John
Michigan Department of Transportation
425 W. Ottawa St
Lansing, MI 48909
PH: 517-373-2090
FAX: N/A
E-Mail: STATONJ@mdot.state.mi.us
Problem Statement
The current MDOT protocol for freeze-thaw evaluation of course aggregates is based on the MDOT Series 6 aggregate gradation.
Research Objectives
Determine if there is a correlation between laboratory freeze-thaw characteristics for the standard-size and large-size coarse aggregate gradations. If so, can a transfer function be derived to rate the large size aggregates based on their respective Series 6 freeze-thaw test results.
Research Method
Perform freeze-thaw evaluations on ten sources of quarried, natural gravel and mined rock on large-size coarse aggregates and their respective Series 6 gradations by using both the confined and unconfined freeze-thaw methods.
Product
large-sized coarse aggregate
Completion Date: Dec 31, 2002
Category: Materials
Keywords: coarse aggregate, freeze-thaw, pavement, Series 6,
Date Posted: Nov 06, 2001
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