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concrete admixtures and the properties they enhance

Concrete Admixtures (Additives)- Types, Selection, Properties .

Concrete admixtures (additives) enhances the properties of concrete for applications in construction with special requirements. Concrete additives are used to achieve desired workability in case of low water cement ratio, and to enhance setting time of concrete for long distance transportation of concrete. So, it is of much importance for a civil site engineer to […]

Concrete Admixtures - Types and Functions - Cement Concrete

Admixtures (concrete admixtures) can be used for the following purposes:. Functions of Admixtures. Concrete admixtures have various functions and they are as follows: (a) To increase the rate of strength development at early ages – calcium chloride is the most widely used accelerator,

Seven Must-Use Concrete Admixtures (Additives)

Concrete Admixtures: Air-Entrainment . Air entrained concrete can increase the freeze-thaw durability of concrete. This type of admixture produces a more workable concrete than non-entrained concrete while reducing bleeding and segregation of fresh concrete. Improved resistance of concrete to severe frost action or freeze/thaw cycles.

Concrete Admixtures | 7 Types Of Concrete Admixtures .

Excess quantity of admixture may cause harm to the properties of concrete. 7 types of concrete admixtures are explained below. Functions of admixtures: Some of the important purposes for which the admixtures could be used are: 1. To accelerate the initial setting of concrete. 2. To retard the initial set. 3. To increase the strength of concrete. 4.

Concrete Admixtures - types and functions - Structural Guide

Concrete admixtures have become a mandatory component in modern concrete construction works with its wide development to enhance the quality, workability, strength, etc. of the concrete. With the wide use of these materials, it is very important to be aware of the concrete admixtures.

Effect of Usage of Admixture in Concrete

There are two basic types of admixtures available: chemical & mineral. Admixtures like flyash, silicate fume, slag comes in the category of mineral admixtures. They are added to concrete to enhance the workability, improve resistance to thermal cracking and alkali–aggregate reaction and to enable reduction in cement content.

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