General Contractor Practice Exam

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What standards govern the test procedure for concrete test cylinders?

AASHTO standards
ASTM C31-69 standards
ISO 9001 standards
ACI guidelines

The correct answer is: ASTM C31-69 standards

The standards governing the test procedure for concrete test cylinders are encapsulated in ASTM C31-69. This standard outlines the proper methods for casting, curing, and testing of concrete test specimens, specifically cylindrical samples. It provides clear, systematic procedures to ensure consistency and reliability in concrete strength testing, which is crucial for ensuring that concrete meets specified performance criteria. By adhering to ASTM C31-69, contractors and engineers can ensure that they are obtaining accurate representations of the concrete’s properties, enabling them to make informed decisions about material quality and structural integrity. This standard is widely recognized and utilized across various construction projects, facilitating compliance with industry norms in the concrete testing process. Other standards listed, such as AASHTO, ISO 9001, and ACI guidelines, also contribute valuable information to the field of construction and concrete testing. However, they do not specifically govern the test procedure for concrete test cylinders in the same detailed manner as ASTM C31-69.