Conformance to aggregate specifications is essential in the performance of construction materials. At Frey Sand & Gravel we promote the use of the most commonly referenced standards for our products:

1. N.Y.S.D.O.T.
2. A.S.T.M.
3. A.S.H.T.O.

Please call us to confirm that our products will match the requirements of your job specifications.

 
 

 

1. Aggregates are typically classified as either coarse or fine.
 
A. Coarse is defined as any material retained on a #4 Mesh Sieve (4.75MM)
 
B. Fines or Sand material is anything passing through a #4 Mesh Sieve.
 
2. Aggregate suitability is determined by four principal criteria.
 
A. Hardness is principally related to the density & porosity of material.
 
B. Particle Shape:
 
1. In coarse aggregate, shape is generally a function of crushing equipment. A high degree of cubicity
is desired as it promotes tighter particle interlock.
 
2. In fine aggregate, naturally round to sub-round particles are preferred as they enhance the finishability
of the product.
 
C. Cleanliness is an important property especially when used in concrete mixes, asphalt mixes and surface
treating applications. Aggregate that is free from dust, silt and clay fines improves particle bonding to
cement or oil.
 
D. Chemical Soundness measures the content of soluble minerals, particularly sulphates, in aggregate.
This will determine the susceptibility of the product to alkali-reactivity.
 
3. Weights of Materials:
 
A. Although most material requirements are derived into cubic yards, they are sold by the ton.
 
B. The density of material and gradation specifications will determine aggregate conversions (Tons to CY).
   

 

 
3850 Dry Bridge Road | Alexander, NY 14005 | Tel: 585.591.1515 | Fax: 585.591.1523
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