Concrete admixture is added to the concrete after addition of desired amount of water during mixing of concrete in mixer.
CONCET AE is typically dosed at a rate of 0.75 to 1.5 oz per 100 lbs (50 to 100 mL per 100 kg) of total cementitious material to entrain 3% - 6% air content.
The amount of CONCET AE will vary depending on type of cement, fineness of sand, temperature, design of the mix, other admixtures, etc.
Concrete mixes must be tested regularly to confirm that proper air content is achieved. CONCET AE should be added directly to the sand to achieve maximum performance.