coarse aggregate

coarse aggregate

[′kȯrs ′ag·rə·gət]
(materials)
Crushed stone or gravel used in concrete; will not, when dry, pass through a sieve with ¼-inch-diameter (6-millimeter) holes.

coarse aggregate

Aggregate retained on a 4.76-mm (No. 4) sieve. Also see crushed gravel, crushed stone, gravel, pea gravel.
References in periodicals archive ?
Based on the mechanical tests results, the clinopyroxenite samples are recommended to be used as coarse aggregate in construction projects.
Coarse aggregate is separated in removable sieves, while slurry and water drain through hoses.
One study found that - the RCA's average shape index is 120% higher than the NCA's (natural coarse aggregate), meaning that RCA is more angulated than the NCA (Amorim, De Brito, and Evangelista 2012).
(i) The limestone coarse aggregate was abrasive wore for 0, 250, 500, 750, and 1000 passes using the Los Angeles abrasion apparatus to obtain five different CAAs.
Angularity index applies to coarse aggregate sizes and describes variations at the particle boundary that influence the overall shape.
[10.] ASTM C127, Standard Test Method for Density, Relative Density (Specific Gravity), and Absorption of Coarse Aggregate, 2004.
Larrard and Belloc (1992) reported that the weakest components in concrete are the hardened cement paste and the transition zone between the cement paste and the coarse aggregate rather than the coarse aggregate itself.
In this study, crushed stone from Margala query was used as natural coarse aggregate. The cracked high strength Pre-Stressed concrete girders were used to produce the recycled coarse aggregate.
Senthamarai and Devadas (2005) focused on the usage of industrial ceramic waste as replacement of natural coarse aggregate. Experiments made in this study include compressive splitting tensile and flexural strengths of the concrete made with the ceramic coarse aggregate.
Various combinations of ordinary Portland cement (ASTM Type I), fine aggregate, normal coarse aggregate, two types of lightweight coarse aggregates, and glass bubbles are used to fabricate the test specimens.
It was stated by Skripkiunas (2006) that if the concentration of coarse aggregate increases, the yield stress of concrete mixture decreases proportionally.