Entraining Agent

Definition

An Entraining Agent is a substance added to concrete, mortar, or cement that produces air bubbles during mixing, making it easier to work with and increasing its resistance to frost and freezing.

Purpose

The purpose of an Entraining Agent is to improve the workability of concrete and enhance its durability, especially in environments subject to freezing and thawing cycles.

Examples of Use

• Cold Climate Construction: Using air-entrained concrete to build structures in areas prone to frost and freezing.
• Highway Construction: Enhancing the durability of concrete pavements.
• Masonry Work: Improving the workability of mortar for easier application.

Related Terms

• Admixture: A material added to concrete to modify its properties.
• Workability: The ease with which concrete can be mixed, placed, and finished.
• Durability: The ability of concrete to withstand environmental conditions without significant deterioration.

Notes

• The amount of entraining agent used must be carefully controlled to achieve the desired effect.
• Overuse of entraining agents can negatively affect the strength of concrete.