GLOSSARY

Absorption: The process of moisture filling permeable pores in a porous, solid material.
Accelerator: An admixture which speeds the rate of hydration of cement, shortens the normal time of setting, or increases the rate of hardening, strength development, or both, of concrete, mortar, or grout.
Actual Dimensions: Exact size of masonry units, usually width of mortar joint less than nominal dimensions.
Admixture: A material other than water, aggregate, or cement used as an ingredient in concrete, mortar, grout, or plaster and added to the mix either immediately before or during the mixing.
Adobe: Unfired clay bricks dried in the sun.
Aggregate: Materials such as sand, gravel, and crushed stone used with cement and water to make concrete, mortar, grout, or plaster.
Air Content: The volume of air voids in cement paste, concrete, or mortar.
Air-Entraining Agent: An admixture for concrete or mortar which causes the formation of air bubbles in the mix to improve workability and frost resistance.
Air Entrainment: The introduction of air in the form of minute bubbles into concrete or mortar during the mixing in order to improve the flow and workability of fresh mixes and the durability of the hardened material against damage from repeated freezing and thawing when saturated.
Air Void: An entrapped or entrained air pocket in concrete or mortar. Entrapped voids are usually larger than 1 millimeter in diameter and removed by vibration, power screeding, or rodding.
Anchor: Metal rod, wire,...

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Masonry and Concrete: For Residential Construction

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Masonry and Concrete: For Residential Construction

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