(AS-308, ASTM C-494 type Α, per EN 934-2:T2 and T9)
Its addition in wet concrete improves its watertightness, and increases its mass density as well as its plasticity. It also enhances all its mechanical stengths, reducing by 10% the water/cement ratio. Necessary for creating watertight foundations on soil with increased moisture levels.
From 0.3 to 0.5kg per 100kg of cement.
1kg, 5kg, 20kg.