Summary
Fine aggregate - is used in multiple construction applications, including concrete construction.
Technical Information
Most commonly, sand is used as fine aggregate in the construction industry as it is a relatively inexpensive material. By definition, fine aggregate particles pass through a 9.5mm sieve.
Fine aggregate is mixed with coarse aggregate, cement and water to make concrete.
High fine aggregate content has the following effect on concrete properties:
- Increases the amount of cement required to make the fresh concrete workable. This also happens when the average diameter of the fine particles is reduced.
- Reduces the rate of bleed in a floor slab. This makes it more difficult to judge when to finish the surface.
- Increase water demand to the concrete mix.
- Increases resistance to freeze-thaw.
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