00741956

Component

https://doi.org/10.3141/1577-01

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

A wide range of alternative materials for pavement construction were studied, and assessment techniques to enable and increase their use were developed. Five secondary materials and a conventional crushed granite were considered for use in an unbound form or lightly treated with various binders (including primary and secondary binders) in a total of 11 road pavement subbase materials. The secondary materials studied were minestone, china clay sand, slate waste, fly ash, and furnace bottom ash. The laboratory program set up for this research essentially was based on repeated-load triaxial tests, and the techniques used for specimen preparation, conditioning, and testing for resilient behavior are described. In particular, the modifications of the procedures recommended by the European Committee for Standardization necessary for testing secondary materials are identified and described. The analysis of the resilient behavior of the materials studied led to the identification of two groups with identical characteristics: unbound type of behavior (which included lightly treated mixtures), and treated type of behavior. A definition of boundaries for those groups was attempted. The mechanical properties of these materials necessary for use in analytical methods of pavement design are also presented, and the implications of treatment in terms of triaxial strength and resilient modulus are discussed.

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. 1-9

1997

Transportation Research Record

0309061598

Figures (10) ; References (17) ; Tables (1)

Accelerated tests; Bottom ash; Crushed rock; Fly ash; Granite; Materials tests; Mechanical properties; Modulus of resilience; Repeated loads; Sandy clays; Slate; Subbase materials; Test procedures; Triaxial shear tests; Wastes

Triaxial tests; Unbound

Environment; Geotechnology; Highways; Materials; I33: Other Materials used in Pavement Layers

TRIS, TRB, ATRI

Oct 17 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
• 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
• KANSAS EXPERIENCE WITH STRATEGIC HIGHWAY RESEARCH PROGRAM WASHINGTON HYDRAULIC FRACTURE INDEX TEST
• 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