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FM001
MasonryTrade Terms
| Term | Definition |
|---|---|
| Admixture | Chemical or Mineral added to mortar to change is set time |
| Adobe | Sun dried, molded clay brick |
| Aggregate | Material such as crushed stone or gravel used as a filler in concrete |
| ASTM | American Society for Testing and Materials |
| Ashlar | Square, Rectangle or cut flat faced surface with a sawed joint |
| Capital | Top part of an architectural column |
| CMU | Concrete masonry unit |
| Cored | Brick with holes cored in them to reduce weight |
| Comice | The horizontal projection crowning the wall of a building |
| Course | A row of CMU's |
| Cube | A strapped bundle of block or brick |
| Facing | The part or face of the block or brick that shows after construction |
| Grout | A thin mixture portland cement, lime and water |
| Joints | The area between each block or brick that is filled with mortar |
| Stone Vaneer | CMU's with other added materials to give an appearance of natural stone |
| Mason | A person who assembles CMU's |
| Mortar | A mixture of Portland cement, lime, fine aggregate and water |
| Parapet | A low wall or railing |
| Structural | Bearing weight in addition to its own |
| Uncored | Solid brick |
| Weephole | A small opening in a mortar joint to allow the escape of moisture |
| Wythe | A continuous section of masonry that is all the same size |
| Closure Unit | Last brick final course |
| Crowd the line | To touch or lay block or brick too close to the masons line |
| Racking | Shortening each course of CMU's by half a unit to stagger the joints |
| Return | A corner in a structure or lead |
| Slack to the line | a CMU getting too far away from the line |