Durability of High-Strength Concrete Containing Fly-Ash and Silica Fumeby H. Marzouk, Memorial Univ of Newfoundland, Canada,
Abstract: The durability of high-strength concrete made with local materials were tested with regard to the freezing and thawing resistance of concrete in accordance with ASTM C666 procedure A. The changes in weight, length, pulse velocity, resonant frequency, compressive strength, freezing and thawing were recorded for 458 cycles. At various intervals the specimens were removed from the apparatus at the thawed phase of the cycles. The specimens were then weighed and nondestructive method of testing were performed by using V-meter and sonometer. The dynamic modulus of elasticity of each specimen was determined and used as a reference for the condition of each concrete after certain cycles. Study results are discussed.
Subject Headings: High-strength concrete | Freeze and thaw | Material tests | Dynamic modulus | Material durability | Strength of materials | Silica | Load and resistance factor design
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