Standard sand 20-30 / ASTM C778#Sand ASTM C778 20-30#ASTM graded C778 20-30 sand
Cement testing standardized sand specifications
Sand 20-30 is composed of local siliceous sands (99% silica content) natural with a water content of less than 0.1%. The constituent grains of these sands are uncrushed and have a rounded shape. The sand is packaged in a 16 kg bucket.
Deliveries are made on pallets of 36 to 48 buckets with a gross mass of 590 kg to 780 kg, protected by reinforced cardboard.
This sand is used for testing cements.
The granularity of sand 20-30 is fixed by standard ASTM C 778. The average production control is:
|Tamis maille carree (mm)||Passants cumules (%)|
|Courbe moyenne||C778 graded|
|0,85||99,,8||85 á 100|
|0,60||3,4||0 á 5|
This sand has been certified in accordance with the ASTM C778 20-30 standard by the TERRACON
These checks are carried out by the SNL laboratory. They are the subject of a certificate per delivery.
Sand ASTM C778 20-30#ASTM C778 20-30 sand#Standardized ASTM C778 20-30 sand#Cement testing standardized sand#Standard sand 20-30 or ASTM C778#STANDARD SAND 20-30 / ASTM C778#Standard sand 20-30 / ASTM C778#ASTM graded C778 20-30 sand