10 Questions
What is the primary purpose of using a sealant in molds?
To prevent leakage through the joints
What is the recommended coating for reusable molds before use?
Mineral oil or nonreactive form release material
What type of mold is not suitable for standard-cured specimens?
Cardboard cylinder mold
What is the purpose of the slump apparatus?
To measure the slump of concrete
What is the recommended material for the sampling receptacle?
Heavy gauge metal pan
What is the primary requirement for molds during use?
They should be able to hold their dimensions and shape
What is the purpose of the finishing tool?
To finish the surface of the concrete
What is the requirement for cylinder molds?
They should conform to the requirements of Specification C470/C470M
What is the purpose of the tamping rod?
To compact the concrete in the mold
What is the requirement for the base plates in molds?
They should be held firmly to the molds
Quiz about the standard practice for making and curing concrete test specimens in the field, based on the ASTM C31/C31M standard. Learn about the principles and guidelines for concrete testing and curing. Improve your knowledge of concrete technology and testing methods.
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