METHODS OF CEMENT TESTING Sand for strength measurements
Certified in accordance with EN 196-1
Conforming to iso 679
CEN Standard sand (ISO standard sand) is a natural sand, which is siliceous particularly its finest fractions. It is clean, the particles are generally isometric and rounded in shape. It is dried, screened and prepared in a modern workshop which offers every guarantee in terms of quality and consistency.
The sand is packaged in polyethylene bags each containing 1 350 ± 5 g.
Deliveries are made in boxes of 16 bags weighing 21.6 kg and in pallets of 2 to 54 boxes, suitably protected by a polyethylene cover (land transport) or reinforced boxes (shipping).
The grading, measured by sieving, complies with the requirements of EN 196-1 (§5) and of ISO 679: 2009 (§5).
|Square Mesh Size (mm)||Cumulative (%) Retained|
|0.08||99 ± 1|
|0.16||87 ± 5|
|0.50||67 ± 5|
|1.00||33 ± 5|
|1.60||7 ± 5|
This analysis is complemented by bag mass controls, water content controls and strength controls, in accordance with EN 196-1 (§11) and ISO 679: 2009 (§11).
CEN standard conformity is carried out by L.E.M.V.P. (Material Test Laboratory), 4 Avenue du Colonel Henri Rol-Tanguy – 75014 PARIS
Production has been certified by AFNOR (Association Française de Normalisation), 11 Rue Francis de Pressensé – 93571 La Plaine Saint Denis Cedex.