Ordinary Portland Cement (OPC) In the realm of building, ordinary Portland cement, or OPC, is the most often used type of cement. It is the fundamental component used to make non-specialty grouts, mortar, stucco, and concrete. The strength of regular Portland cement is used to grade it. The grade represents the mortar cube’s anticipated compressive […]
Initial & Final Setting of Concrete The cement paste’s initial setting time in concrete is when it begins to harden, and the cement paste’s ultimate setting time occurs when it has sufficiently hardened to leave an impression on the paste in the mold when a 1 mm needle is inserted, but no impression at all […]
Concrete Retarders Concrete retarders are used to postpone the concrete’s first setting period by up to one hour. They are usually employed in hot weather conditions to prevent the temperature from hardening too quickly, giving mixing, transporting, and placing more time. Retarders function as water reducers as well. Mechanisms of Concrete Retarders A longer dormant […]
Calcium Chloride in Concrete In order to speed up the hydration process of cement and produce concrete with a high initial strength, calcium chlorides are employed as an accelerator. The maximum amount of calcium chloride that can be added in the form of flake is 2%. Techniques for Including Chloride in Water It is possible […]