Strength-Temperature Study of Fly Ash Concrete, MLR-84-6, 1984

(1984) Strength-Temperature Study of Fly Ash Concrete, MLR-84-6, 1984. Transportation, Department of

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Abstract

Class A, B, and C concrete paving mixes were tested for compressive strength at 40°F and 73°F, both with and without fly ash substitution for 15% of the portland cement. Two Class C ashes and one Class F ash from Iowa approved sources were examined in each mix. The purpose of the study was to provide data on cool weather strength development of concrete paving mixes utilizing Iowa materials. In all cases except one, the fly ash concretes exhibited lower 7 and 28- day compressive strengths at 40°F than control mixes. The continuation of the October 15 cut-off date for the use of fly ash concrete is recommended.

Item Type: Departmental Report
Keywords: Admixtures, Data collection, Fly ash, Low temperature tests, Strength of materials, Warm mix paving mixtures
Subjects: Transportation > Pavements
Transportation > Pavements > Concrete
Transportation
Transportation > Materials
Transportation > Research
Transportation > Design and Construction
Transportation > Data and Information Technology
Transportation > Maintenance and preservation
ID Code: 17206
Deposited By: Iowa DOT Library
Deposited On: 12 Jun 2014 12:30
Last Modified: 22 Jan 2015 19:55
URI: http://publications.iowa.gov/id/eprint/17206