Shrinkage-reducing concrete admixture promote expansion of the concrete at about the same volume that normal drying shrinkage is contracting it. The net change in length of the hardened concrete is small enough to prevent shrinkage cracks. Shrinkage reducing concrete mixture ...
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Water-reducing Set-retarding Admixtures: Affects, and Applications
Water-reducing and set-retarding admixtures are chemicals that slow down the initial reaction between cement and water by reducing the rate of water penetration to the cement and slowing down the growth of the hydration products. As a result, concrete stays ...
Functions of Admixtures in Fresh and Hardened State of Concrete
admixtures (singular or combination of admixtures) are added to concrete or mortar or grout mixture to achieve or improve desired properties in the fresh or hardened state. The admixtures are added to concrete based on their functions which they are ...
Factors Affecting Performance of Admixtures in Concrete
There are many factors that influence the performance of admixtures in concrete such as type of admixture, dosage, compatibility of the admixture with cement, mix design, ambient temperature, and the presence of other admixtures. These factors influence the degree of ...
Mortar Admixtures – Types, Uses and Benefits in Masonry Construction
Mortar admixtures typically offer properties such as waterproofing, water-repellency, efflorescence control, air entrainment using plasticizers to enhance workability, accelerating and retarding setting times etc. These mortar admixtures are used for ratios 1:3 or leaner mixes for use in masonry construction. ...
15 Types of Admixtures Used in Concrete
Admixtures are defined as the material other than the aggregate, water and cement added to the concrete. The use of suitable admixture can result in the enhancement the performance of concrete.
Concrete Admixtures (Additives)- Types, Selection, Properties, Uses
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 ...
Different Types of Concrete Curing Compounds, their Properties and Uses
Concrete curing compound prevents moisture content loss from concrete and enables proper curing of concrete which results in full development of strength.