ASTM C125:19 pdf download

ASTM C125:2019 pdf download.Standard Terminology Relating to Concrete and Concrete Aggregates.
interval, sampling, n—as applied to digital data acquisition instrumelits, the time difference between any two adjacent poinis in a waveform. (R2016)
laitance, n—a layer of weak material derived from cementitious materials and aggregate fines carried to the surface of a cementitious mixture by bleeding. (R2016)
lime-saturated water, n—for test specimens, water containing calcium hydroxide at saturation level and in contact with solid calcium hydroxide so that saturation is maintained. (R2016)
man ufactu red sand—see sand, manufactured.
material, certified reference, n—a material, accompanied by a certificate, one or more of whose property values are certified by a procedure that establishes traceability to an accurate realization of the unit in which property values are expressed, and for which each certified property value is accompanied by an uncertainty at a stated level of confidence. (E135) (R2016)
DiscussioN—The certifIcate provides traceable values and associated uncertainties of the properties of the material and must he retained with the material.
material, consensus reference, n—a material whose properties are based on average values obtained in an interlahoratory study or proficiency testing program that involves the use of standardized measurement systems. (R2016)
DiscussioN—Consensus reference materials can he used internally by laboratories for periodic verification of measuring instruments or measurement processes.
material, reference, n—material, sufficiently homogeneous and stable with reference to specified properties. which has been established to be fit for its intended use in measurement or in examination of nominal properties. (VIM3) (R2016)
maturity, n—the extent of the development of a property of a cementitious mixture. (2018)
DiscussioN—This term is commonly used to describe the extent of
relative strength development of concrete. However, the term can also be applied to the evolution of other properties that depend on the chemical reactions occurring in the cemdntitious materials. At any age. maturity depends on the curing history.
maturity function, li—a mathematical expression that uses the measured temperature history of a cementitious mixture during a curing period to calculate an index that is indicative of the maturity at the end of that period. (2018)