Products
Products available in the following sizes:
Common Uses:
US Department of Agriculture Sand (USDA): This is the normal sort of sand that contains a more or less even distribution of the different sizes of sand grain. It is not dominated by a particular size of sand particle. It contains 25% or more very coarse, coarse, and medium sand (but less than 25% very coarse plus coarse sand), and less than 50% either fine sand or very fine sand.
Fine Sand: This class of sand is dominated by the finer sizes of sand particle, and as such feels rather uniform in texture and somewhat less coarse than either sand or coarse sand. It must contain 50% or more fine sand; or less than 25% very coarse, coarse, and medium sand, and less than 50% very fine sand.
Very Fine Sand: This soil is dominated by the very finest of sand grains. Its grittiness seems almost to grade into the smoothness that one would expect in a silty soil. It is 50% or more very fine sand.
Remember, the term "sand" has more than one meaning in the USDA system. Sand can mean a group of soil separates (very coarse sand, coarse sand, medium sand, fine sand, and very fine sand) that collectively range in diameter from 2 to 0.05 mm. Sands, in the plural, are a major textural grouping on the USDA textural triangle. This major grouping (sands) includes four individual USDA textures (coarse sand, sand, fine sand, and very fine sand), depending on the proportions of the individual separates in a particular soil.
AASHTO Sand: ASHSTO Soil terminology comes from AASHTO M 145, "Classification of Soils and Soil-Aggregate Mixtures for Highway Construction Purposes". Aggregate terminology comes from AASHTO M 147, "Materials for Aggregate and Soil-Aggregate Sub base, Base and Surface Courses". Basic terms include:
Coarse Sand - Consists of material passing a 2.00-mm sieve (No. 10) and retained on a 0.475-mm (No. 40) sieve.
Fine Sand - Consists of material passing a 0.475-mm (No. 40) sieve and retained on a 0.075-mm (No. 200) sieve.
ASTM Sand Classification : Grading refers to the distribution of particle sizes present in an aggregate. The grading is determined in accordance with ASTM C 136, "Sieve or Screen Analysis of Fine and Coarse Aggregates." A sample of the aggregate is shaken through a series of wire-cloth sieves with square openings, nested one above the other in order of size, with the sieve having the largest openings on top, the one having the smallest openings at the bottom, and a pan underneath to catch material passing the finest sieve. Sieve sizes commonly used for concrete aggregates have various physical properties of normal weight aggregates. Coarse and fine aggregates are generally sieved separately. That portion of an aggregate passing the 4.75 mm (No. 4) sieve and predominantly retained on the 75 ?m (No. 200) sieve is called "fine aggregate" or "sand," and larger aggregate is called "coarse aggregate." Coarse aggregate may be available in several different size groups, such as 19 to 4.75 mm (3/4 in. to No. 4), or 37.5 to 19 mm (1-1/2 to 3/4 in.).
ASTM C 33 ("Standard Specifications for Concrete Aggregates") lists several such size groups using the simplified practice recommendation (SPR) number designation. The number and size of sieves selected for a sieve analysis depends on the particle sizes present in the sample and the grading requirements specified.