High Strength, Low Permeability Garage Rehab Concrete

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by T. A. Holm, Solite Corp, Richmond, United States,
T. W. Bremner, Solite Corp, Richmond, United States,

Document Type: Proceeding Paper

Part of: Materials: Performance and Prevention of Deficiencies and Failures

Abstract: Physical and engineering properties of high strength structural lightweight concrete used to replace deteriorated concrete in garage structure rehabilitation programs are reported. Structurally efficient concrete mixtures that incorporate silica fume, superplasticizers and fibers developed to optomize strength/weight ratios for replacement concretes are detailed. Project specifications and practical factors involving mixing, conveying and placement considerations are reported. Permeability testing programs conducted in accordance with AASHTO T 277-83, 'Rapid Determination of the Chloride Permeability of Concrete', provide results for concrete mixtures presently being used for several different rehabilitation projects. Measurements of the elastic properties of job site secured specimens including compressive strength, modulus of elasticity and various strain characteristics are presented.

Subject Headings: Permeability (material) | Concrete structures | Structural strength | Parking facilities | Rehabilitation | Compressive strength | Structural concrete |

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