ASTM C125-18 pdf download.Standard Terminology Relating to Concrete and Concrete Aggregates.
admixture, n—a material other than water, aggregates. cementitious material, and fiber reinforcement that is used as an ingredient of a cementitious mixture to modify its freshly mixed, setting, or hardened properties and that is added to the hatch before or during us mixing. (R2015)
accek’raung admixture, n—an admixture that increases the rate olreaction of cementitious materials thus reducing Lime of setting and increasing early strength development of a cernentitious mixture. (2015)
air—entraining admixture, n—admixture that causes the development of a system of microscopic air hubbies in concrete or mortar during mixing. (R2008)
(‘hemu’ai admixture. n—an admixture in the form of a liquid, suspension, or water-soluble solid. (2014)
mi,ieral admixture, n–deprecated term. (R2008)
Dis&iv’ius—This term has been used to refer to different types of water insoluble. tinelv divided materials such as pozzolanic materials. ccmcntitious maicrials. and aggregate. These malcnals are no similar, and it is not useful to group them under a single term. The name of the specitic material should be used, for example. use “pozzolan.”“slag cement,” or “tinely divided aggregate.” as is appropriate.
retarding admixture, n—an admixture that decreases the rate of reaction of cementitious materials thus increasing time of setting of a cemenfitious mixture. (2015)
water- reducing admixture, n—ad mixture that either incrcase s the slump of freshly mixed mortar or concrete without increasing the water content or that maintains the slump with a reduced amount of water due w factors other than air entrainment. (R2008)
water- reducing ad,,ILrture. high -range. n—a water-reducing admixture capable of producing at least 12 % reduction of water content when tested in accordance with Specification C494/C494M and meeting the other relevant requirements of Specification C494/C494M. (R2008)
age, equivalent, n—the number of days or hours of curing of a concrete mixture at a specified temperature required to produce a maturity equal to the maturity achieved by a given curing period at concrete teniperatures different from the specified temperature. (2015)
Diseussios—The specihed temperature is taken typically as the temperature used fur standard laboratory curing. For example. a concrete cured for threc days at an elevated temperature may have an equivalent age of seven days of curing at the Mandard laboratory temperature.
aggregate, n—granular material. such as sand, gravel, crushed stone, or iron blast-furnace slag. used with a cementing medium to form hydraulic-cement concrete or mortar.
R2(X)g)
coarse aggregate, n— I) aggregate pre*iom inantly retained on the 4.75-mm (No. 4) sieve; or (2) that portion of an aggregate retained on the 4.75-mm (No. 4) sieve. (R2008)
I)iscusios—The dctinitions are altcrnativcs to be applied under differing circumstances, Definition (I) is applied to an entire aggregate either in a natural condition or after processing. t)efinitiun (2) is applied to a portion of an aggregate. Requirements br properties and grading should be stated in thc specification.
fine aggregate, n—(I) aggregate passing the 9.5-mm (3/R-ini sieve and almost entirely passing the 4.75-mm (No. 4) sieve and predominantly retained on the 75-pm (No. 200) sieve; or (2) that portion of an aggregate passing the 4.75-mm (No. 4) sieve and retained on the 75-pm (No. 200) sieve. (R200X)
DIscLssIos—The definitions are alternatives to be applied under differing circurlmtanees. Definition (I) is applied to an entire ag,grcgac cithcr in a natural condition or alter processing. Detinition 2) is applicd to a portion of an aggregate. Requirements for properties and grading should be stated in the specifications.
heas’vweighr aggregate. n—see high-den.ciiy aggregate.
hiçh-densiss’ aggregate n—aggregate with relative density greater than 3.3, such as: barite. magnetite. limonite. ilmenite. iron, or steel. (R2008)
lightweight aggregate, ,i—see low-density aggregate.
low-dens it aggregate, n—aggregate with bulk density less than 1120 kglm3 170 lb/ft3J. such as: pumice. scoria. volcanic cinders. luff, and diatornite: expanded or sintered clay, shale. slate, diatomaceous shale. penile, vermiculite, or slag; and end products of coal or coke combustion. (R2008)
normal—de’nsitv aggregate, n—aggregate that is neither high nor low density. (R2008)
Disctssior.—This tenn refers to aggregate with relative density typically ranging between 2.4 and 3.0. or with bulk density typaHy ranging between 1120 kg/rn3 170 lh/1t31 and 1920 kg/rn3 112(1 lh!ftl.
norinaiweight aggregate, n—see normal-density aggregate.
air content, n—the volume of air voids in cement paste. mortar, or concrete, exclusive of pore space in aggregate particles, usually expressed as a percentage of total volume of the paste, mortar, or concrete. (R2008)
azr-caoled blast-furnace slag—see blast-furnace slag, aircooled.ASTM C125 pdf download.