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2003•Unpublished venueRequires access

EFFECT OF CURING ON THE DURABILITY OF FLY ASH CONCRETE

Turan Özturan, M. E. Bastopcu

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Abstract

This paper describes the durability of fly ash concrete subjected to various curing conditions. Sorptivity, chloride-ion penetration, and resistance to deicing-salt scaling were tested for concretes containing 0, 15, 30, and 45% Class C fly ash by weight of cement. Specimens were tested at 28 and 56 days after being subjected to 3 different curing conditions. It was noted that increasing the fly ash content decreased the sorptivity, chloride-ion penetration, and deicing-salt scaling of concretes with the exception that they were increased for the specimens that were not properly cured. Highest durability performance was observed for concrete specimens subjected to hot water curing. Moist cured specimens had the next highest durability.

About this research paper

What this paper is about

This paper describes the durability of fly ash concrete subjected to various curing conditions. Sorptivity, chloride-ion penetration, and resistance to deicing-salt scaling were tested for concretes containing 0, 15, 30, and 45% Class C fly ash by weight of cement. Specimens were tested at 28 and 56 days after being subjected to 3 different curing conditions. It was noted that increasing the fly ash content decreased the sorptivity, chloride-ion penetration, and deicing-salt scaling of concretes with the exception that they were increased for the specimens that were not properly cured. Highest durability performance was observed for concrete specimens subjected to hot water curing. Moist cured specimens had the next highest durability.

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Available abstract

This paper describes the durability of fly ash concrete subjected to various curing conditions. Sorptivity, chloride-ion penetration, and resistance to deicing-salt scaling were tested for concretes containing 0, 15, 30, and 45% Class C fly ash by weight of cement. Specimens were tested at 28 and 56 days after being subjected to 3 different curing conditions. It was noted that increasing the fly ash content decreased the sorptivity, chloride-ion penetration, and deicing-salt scaling of concretes with the exception that they were increased for the specimens that were not properly cured. Highest durability performance was observed for concrete specimens subjected to hot water curing. Moist cured specimens had the next highest durability.

Key concepts: Sorptivity, Durability, Fly ash, Curing (chemistry), Materials science, Composite material, Chloride, Penetration (warfare)

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