Standard sand , grading as per BS 4550
CEMENT LABORATORY PRODUCTS
STANDARD SAND FRACTIONS , grading as per BS 1881 – Part 131
Methods for testing cement in a reference concrete
The sand is supplied in 5 fractions named A, B, C, D and E. Each fraction is made of natural silicious sand having a water content lower than 0.1 %. The constituent grains of those fractions are uncrushed and rounded form.
Each fraction is packaged in bag of 25 kg for A, B, C, D and E., on pallet of 2 to 40 bags protected by reinforced boxes (other packaging on demand).
Natural silica sand of French origin
Gradings of each sand fraction is fixed by BS 1881 part 131, annex B.
Controls are carried out by SNL Laboratory.