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Feb 02, 2018· Types of Concrete Additives. The additives are added to a water-cement mixture to increase the life of the concrete, control setting, and hardening and fix the general concrete behavior. They can be powdered or liquid additives. The additives can beMore
Antifreeze additives in concrete allow to conduct construction procedures using concrete mixtures even at minus temperatures, withstand frosts to -15 degrees, and some up to -25 degrees. Additives for accelerated durability are necessary to increase this figure for the first time day, and the strength of ready-mixed concrete also increases.More
May 23, 2017· Concrete additives are added to the mixture of water cement and aggregate in small quantities to increase the durability of the concrete, to fix concrete behavior and to control setting or hardening. They can either be liquid or powdered additives.More
Chemical admixtures are the ingredients in concrete other than portland cement, water, and aggregate that are added to the mix immediately before or during mixing. Producers use admixtures primarily to reduce the cost of concrete construction; to modify the properties of hardened concrete; to ensure the quality of concrete during mixingMore
Pozzolans are cementitious materials and include natural pozzolans (such as the volcanic ash used in Roman concrete), fly ash and silica fume. They can be used with Portland cement, or blended cement either individually or in combinations. ASTM Categories Concrete Admixtures ASTM C494 specifies the requirements for seven chemical admixtureMore