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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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Home > Tools > Frequently Asked Questions
Q. What test conditions affect the results of compressive strength tests of concrete? A. The principal factors affecting the measured strength of a concrete specimen: - Selecting the size and shape of the specimen. - Taking the sample (ASTM C172). - Making the specimen (ASTM C31 or C192). - Handling and transporting the specimen (ASTM C31). - Curing the specimen (ASTM C31 or C192). - Preparing the ends of the specimen (ASTM C617, ASTM C1231). - Maintaining the moisture condition of the specimen (ASTM C31 or C192). - Selecting the type and size of the bearing block (ASTM C39). - Placing the specimen in the testing machine for concentric loading (ASTM C39). - Selecting the rate of loading (ASTM C 39). - Calculating the strength from the actual measured cross-sectional area (ACI 214, ASTM C39). References: SP-1(02); ACI 214R-11; ASTM C172; ASTM C31; ASTM C39; ASTM C192; ASTM C617; ASTM C1231 Topics in Concrete: Concrete Fundamentals; Testing of Concrete
Q. What test conditions affect the results of compressive strength tests of concrete?
A. The principal factors affecting the measured strength of a concrete specimen:
- Selecting the size and shape of the specimen.
- Taking the sample (ASTM C172).
- Making the specimen (ASTM C31 or C192).
- Handling and transporting the specimen (ASTM C31).
- Curing the specimen (ASTM C31 or C192).
- Preparing the ends of the specimen (ASTM C617, ASTM C1231).
- Maintaining the moisture condition of the specimen (ASTM C31 or C192).
- Selecting the type and size of the bearing block (ASTM C39).
- Placing the specimen in the testing machine for concentric loading (ASTM C39).
- Selecting the rate of loading (ASTM C 39).
- Calculating the strength from the actual measured cross-sectional area (ACI 214, ASTM C39).
References: SP-1(02); ACI 214R-11; ASTM C172; ASTM C31; ASTM C39; ASTM C192; ASTM C617; ASTM C1231
Topics in Concrete: Concrete Fundamentals; Testing of Concrete
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