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General comment a2 is a ternary blended cement composed mostly of clinker and a combination of 2 types of mineral additives such as limestone, pozzolan and slag which is produced and monitored according to PNS 63.
It consists of a mixture of finely ground, non-metallic, inorganic components. After adding water to the cement, a suspension (cement paste) is formed, which solidifies and hardens both in air and under water due to the onset of a hydration reaction and remains permanently solid.
This cement is a hydraulically hardening binder for the production of concrete and mortar. |