Everything you need to know about concrete additives

Maximum consumption of additives in concrete

High-performance concrete, which has not been around the world for several years and is not the first time in Japan, has revolutionized the concrete construction industry. This concrete, which does not need to vibrate and compacts on its own, has solved the problem of vibration in molds with massive reinforcement and difficult places to create compaction. Despite its high efficiency, this concrete does not have the risk of separation of aggregates and concrete paste, and while its performance and slump are constant for a long time, it can create concrete with high strength, durability and proper strength. In the mixing plan of this concrete, certain ratios must be observed. For example, sand is about 50% of the volume of concrete solids and sand is about 40% of the volume of mortar. The ratio of water to fine materials and powder based on the properties of fine materials is between 0.9 to 1. The exact ratio of water to cement and the amount of special superplasticizer for different materials are determined by trial and error method. This concrete is used underwater using another additive that increases the viscosity of concrete. In different cases of use and maintenance of concrete in structures or special climatic and environmental conditions, a special mixing plan is required that allows the use of concrete additives. Concrete admixtures are used in environments that require rapid concreting or counteracting cold and frost, as well as keeping the structure in direct contact with water and combating the factors that cause the destruction of concrete. In different cases, the type of use of these additives and its combined amount can be changed.

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