ISTRA 40 is a normal setting, rapid hardening Calcium Aluminate Cement (CAC) with high early strength. It differs substantially from the usual calcium silicate cements (Portland cements) in its manufacturing process, chemical composition and rapid strength gain.
ISTRA 40 is composed of calcium aluminates with the following characteristics:
- high early strength
- high abrasion resistance
- resistance to biogenic sulphuric acid corrosion
ISTRA 40 meets the requirements of EN 14647 for Calcium Aluminate Cements and is controlled in accordance with EN 14647.
ISTRA 40 has a shelf-life of approx. six (6) months when stored under dry conditions.