00741961

Component

https://doi.org/10.3141/1577-06

http://scholar.google.com...wers&publication_year=1997

D-cracking due to frost-susceptible coarse aggregates has been a problem on Kansas pavements since the 1930s. However, a reliable, reproducible, easily performed, and inexpensive test method for rapidly assessing the freeze-thaw durability of aggregates is yet to be developed. A method was developed in the Strategic Highway Research Program (SHRP)--the Washington hydraulic fracture index (WHFI) test--apparently capable of identifying nondurable aggregates in about 8 days. Thirty-two limestone aggregates from Kansas sources were tested according to the WHFI procedure. A comparison of existing Kansas criteria for durable aggregates and the percentage fracture values obtained in the WHFI tests indicates that if 5% or more fracture percentage is used as the failure criterion, then 14 out of 32 aggregates (44%) are identified correctly with respect to the durability criterion. For 3% or more fracture percentage, 18 out of 32 aggregates (56%) are identified correctly. A correlation study shows that the WHFI test results are correlated significantly with the results of the freeze-thaw tests of the Kansas Department of Transportation on unconfined aggregates. However, the WHFI test results are poorly correlated with the results of ASTM C666 tests on concrete prism specimens of these aggregates. Since ASTM C666 is universally accepted to predict the frost-susceptibility of aggregates in concrete, the SHRP WHFI test method, in its current form, does not appear to be a viable choice to replace it. However, if the WHFI test can be modified to test concrete prisms, better correlations with ASTM C666 results can be expected.

This paper appears in Transportation Research Record No. 1577, Pavement Base and Foundation Materials, Deformation Characteristics of Subgrade, and Properties of Unconventional Aggregates.

English

p. 45-52

1997

Transportation Research Record

0309061598

Figures (5) ; References (9) ; Tables (4)

Aggregates; Base course (Pavements); Correlation analysis; Freeze thaw durability; Frost susceptibility; Limestone aggregates; Materials tests; Specimens; Test procedures

Strategic Highway Research Program

Aggregate testing

Kansas

Kansas

Data and Information Technology; Geotechnology; Highways; I36: Aggregates

TRIS, TRB

Oct 20 1997 12:00AM

• ALTERNATIVE METHOD OF DETERMINING RESILIENT MODULUS OF COMPACTED SUBGRADE SOILS USING FREE-FREE RESONANT COLUMN TEST
• ANISOTROPIC MODELING OF GRANULAR BASES IN FLEXIBLE PAVEMENTS
• APPLICATION OF GEOTECHNICAL CENTRIFUGE TESTING TO EVALUATE UNCONVENTIONAL HIGHWAY MATERIALS
• BEHAVIOR OF SOME PAVEMENT FOUNDATION MATERIALS UNDER REPEATED LOADING
• CHEMICAL APPROACH TO FORMATION OF CALCITE PRECIPITATE FROM RECYCLED CONCRETE AGGREGATE BASE LAYERS
• FIELD PERFORMANCE AND MITIGATION OF SHREDDED TIRE EMBANKMENT
• FIELD VERIFICATION OF LABORATORY RESILIENT MODULUS MEASUREMENTS ON SUBGRADE SOILS
• GEOTECHNICAL AND ENVIRONMENTAL CHARACTERISTICS OF ATMOSPHERIC FLUIDIZED BED COMBUSTION ASH AND STOKER ASH
• PERSPECTIVES ON LIABILITY FOR CONSTRUCTIVE REUSE OF HIGH-VOLUME WASTE STREAMS
• SEASONAL VARIATION OF BACKCALCULATED SUBGRADE MODULI
• SHEAR AND DEFORMATION CHARACTERISTICS OF MUNICIPAL WASTE COMBUSTOR BOTTOM ASH FOR HIGHWAY APPLICATIONS
• TRIAXIAL CHARACTERIZATION OF MINNESOTA ROAD RESEARCH PROJECT GRANULAR MATERIALS
• USING SUCTION AND DIELECTRIC MEASUREMENTS AS PERFORMANCE INDICATORS FOR AGGREGATE BASE MATERIALS