Aggregate Moisture and Absorption: Correcting Concrete Mix Water
Surface moisture in sand changes the water-cement ratio. Learn the moisture states, saturated surface-dry condition and how to correct batch weights and mix water.
9.5–19 mm
Gravel
Crushed Gravel 4.75–25
Crushed almond gravel
The most widely used coarse aggregate for structural concrete, graded to size number 57.
4.75–25 mm
Properties and technical role
Almond gravel with a 25 mm maximum size is the most common coarse aggregate in structural concrete. Crushed particles bond mechanically with cement paste and contribute to compressive and flexural strength.
The share of flaky and elongated particles must be limited so that compactability and concrete workability are not reduced.
Quality information
| Method | Test |
|---|---|
| ASTM C136 | Sieve analysis |
| ASTM C131 | Los Angeles abrasion |
| ASTM C88 | Sulfate soundness |
| ASTM C127 / C128 | Density and water absorption |
Reference gradingASTM C33
Size number 57 (4.75 to 25 mm)
Limits on percent passing each sieve, based on ASTM C33. These are limits from the reference standard, not test results from a shipment. The current edition of the standard and the project specification are the final authority.
37.5 mm100%
25 mm95–100%
12.5 mm25–60%
4.75 mm0–10%
2.36 mm0–5%
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Inquire about Crushed almond gravel
The grading on offer, stock and supply terms for this product are confirmed at the time of inquiry.