Ash-in-concrete model development: Final report

Technical Report · Sun Jan 01 04:00:00 EST 1989

OSTI ID:6530118

Dunstan, Jr, E R

This report contains the results of a nationwide study of fly ashes collected from 16 different sources. This research provides one of the largest if not the largest single research data base for fly ash concretes. Two samples were collected from each source. The first sample was collected under base-load (normal) operation and the second under upset (other than normal) operations. Each ash sample was tested for standard physical and chemical properties. The ash samples were used in concrete to replace 15 and 30 percent of the cement on a 1 to 1 weight basis. In a few cases, 50 or 60% of the cement was replaced. The concrete was then tested for compressive strength, flexural strength, elasticity, drying shrinkage, set time, freeze/thaw durability and mortars were evaluated for sulfate resistance. A model for each tested property was developed. The most extensive model is an extension of Power's strength model to include factors for fly ashes. Fly Ash concrete elasticity, flexural strength, drying shrinkage and freeze/thaw durability were found to be similar to concretes without fly ash. Set time was found to be extended which could be estimated based on fly ash CaO content. Sulfate resistance was also found to be related to CaO content. 134 figs., 62 tabs.

• Research Organization: Electric Power Research Inst., Palo Alto, CA (USA); Dunstan, Inc., Lakewood, CO (USA)
• OSTI ID: 6530118
• Report Number(s): EPRI-GS-6129; ON: TI89005744
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800 -- Coal
Lignite
& Peat-- Waste Management
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
36 MATERIALS SCIENCE
360603 -- Materials-- Properties
AEROSOL WASTES
ALKALINE EARTH METAL COMPOUNDS
ASHES
BUILDING MATERIALS
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
CHEMICAL PROPERTIES
COMPARATIVE EVALUATIONS
CONCRETES
DOCUMENT TYPES
ELASTICITY
FLEXURAL STRENGTH
FLY ASH
MATERIALS
MECHANICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PROGRESS REPORT
RESIDUES
SHRINKAGE
TENSILE PROPERTIES
WASTE PRODUCT UTILIZATION
WASTES