Effects of fly ash and silica fume on the resistance of mortar to sulfuric acid and sulfate attack

Journal Article · Fri Dec 31 23:00:00 EST 1993 · Cement and Concrete Research; (United States)

DOI:https://doi.org/10.1016/0008-8846(94)90063-9· OSTI ID:7274034

Torii, Kazuyuki; Kawamura, Mitsunori ^[1]

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1. Kanazawa Univ. (Japan). Dept. of Civil Engineering

Changes in physical and chemical properties in the mortars with different replacements by fly ash and silica fume when immersed in 2 % H[sub 2]SO[sub 4], 10 % Na[sub 2]SO[sub 4] and 10% MgSO[sub 4] solutions for 3 years were investigated. The long-term exposure test data showed that the replacement of portland cement by fly ash and silica fume effectively improved the resistance of the mortar to the sulfuric acid and sulfate solution attack. However, the replacement percentage by fly ash and silica fume necessary to prevent the sulfuric acid and sulfate solution attack varied significantly depending on the type of sulfuric acid and sulfate solutions.

• OSTI ID: 7274034
• Journal Information: Cement and Concrete Research; (United States), Journal Name: Cement and Concrete Research; (United States) Vol. 24:2; ISSN 0008-8846; ISSN CCNRAI
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800 -- Coal
Lignite
& Peat-- Waste Management
36 MATERIALS SCIENCE
360604* -- Materials-- Corrosion
Erosion
& Degradation
AEROSOL WASTES
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
ASHES
COMBUSTION PRODUCTS
CONCENTRATION RATIO
CORROSION RESISTANCE
CORROSIVE EFFECTS
FLY ASH
HYDROGEN COMPOUNDS
INORGANIC ACIDS
MAGNESIUM COMPOUNDS
MAGNESIUM SULFATES
MATERIALS TESTING
MORTARS
OXYGEN COMPOUNDS
RESIDUES
SODIUM COMPOUNDS
SODIUM SULFATES
SULFATES
SULFUR COMPOUNDS
SULFURIC ACID
TESTING
WASTE PRODUCT UTILIZATION
WASTES