Construction Materials Unit 2.1 CONSTRUCTION AGGREGATE.

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Presentation transcript:

Construction Materials Unit 2.1 CONSTRUCTION AGGREGATE

Aggregate Materials can be any stone, sand or gravel used in the construction of many different parts of a project. It can be gravel for laneways, basements, tile, septic systems etc. It can be any sand or gravel added to materials to make them stronger. Ex – concrete. It can also be any stone used in landscape or design aspects to a home. Ex – retaining walls, rubberized pebble finishes for patios.

Aggregates can come from natural or manufactured sources. Natural aggregates come from any kind of rock, igneous (obsidian), sedimentary (limestone, chalk) and metamorphic rock (marble, granite) Manufactured aggregates are a result of byproducts produced industrial processing (ex – slag is a byproduct of processing copper and iron)

Fine aggregate are smaller stones and rocks usually smaller than 4.75mm. These are usually used in the preparation of cement mortar (for bricking) and concrete. It helps add strength to these two building materials. Coarse aggregate is anything larger than 4.75mm. Also used for concrete too add strength. Coarse is also used for laneways, tiling and septic systems.

Aggregate as a part of concrete