CARBO Ceramics

Premium metakaolin additive – METAKAO premium metakaolin additive is engineered to provide a high level of pozzolanic reactivity to enhance concrete and cement-based product performance. It reacts with the free-lime in Portland cement to increase the formation of calcium silicate hydrate (CSH), increasing the cementitious bonds in concrete to make it stronger, more durable, and less porous. It is an ultra-fine material produced from the aluminium silicate mineral kaolin. Benefits: improves strength, durability, and workability of Portland concrete; produces a smoother finish and minimizes cracking and shrinkage; reduces permeability, alkali silica reactions (ASR), and efflorescence; improved chemical and moisture resistance; inert material that is safe and easy to handle. Applications: high-performance, high-strength, and lightweight concrete; precast and poured-mold concrete products; oilfield cement and drilling fluids; dry-bagged products; fibercement and ferrocement products; metal casting; specialty uses.