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Title: Performance criteria for concrete repair materials. Phase II Laboratory results
Authors: Whitlock, Dalrymple, Poston & Associates.
Structural Preservation Systems, Inc.
Repair, Evaluation, Maintenance, and Rehabilitation Research Program (U.S.)
Poston, R. W.
Kesner, Keith Evan 1970-
Emmons, Peter H.
Vaysburd, Alexander M.
Keywords: Concrete
Concrete repair
Concrete properties
Concrete structures
Coefficient of thermal expansion
Compressive creep
Drying shrinkage
Material properties
Modulus of elasticity
Performance criteria
Tensile strength
Tensile creep
Publisher: Structures Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Description: Technical Report
Abstract: The study reported herein is part of an overall investigation to develop performance criteria for cement-based repair materials. In Phase I of the study, preliminary criteria for dimensionally compatible repair materials were developed based on a review of the literature. This review concentrated on identifying pertinent material properties, appropriate test methods, and demonstrated field performance. Laboratory and field tests to evaluate the preliminary performance criteria were conducted in Phase II of the project. Twelve candidate repair materials were selected for the experimental portion of the project. Each material was subjected to a series of standard and nonstandard laboratory tests to determine properties which were perceived to be of interest in a repair context and to provide some basic information about their behavior. These tests included (A.) unrestrained and restrained drying shrinbge, (B.) modulus of elasticity, (C.) tensile and compressive creep, (D.) coefficient of thermal expansiom and (E.) flexural, compressive, and direct tensile strengths. Concurrent field tests were also conducted to evaluate material durability. Results of the laboratory investigation are described herein. Results of laboratory and field performance tests will be correlated (Phase III) to providea basis for development of performance criteria for cement-based materials that will provide durable concrete repairs.
Appears in Collections:Technical Report

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