Admixtures - PowerPoint PPT Presentation

About This Presentation
Title:

Admixtures

Description:

Jemkon provides a wide range of epoxy and construction chemicals manufacturer & service provider in India. For Admixtures contact us now. – PowerPoint PPT presentation

Number of Views:2
Slides: 6
Provided by: JemkonFlooring
Category:
Tags:

less

Transcript and Presenter's Notes

Title: Admixtures


1
ADMIXTURES
2
What are ADMIXTURES?
  • Admixtures, in the context of construction and
    materials science, refer to a group of chemical
    or mineral additives that are incorporated into
    concrete, mortar, or other construction materials
    to modify their properties. These additives are
    used to enhance the performance, workability,
    durability, and other characteristics of the
    materials.

3
Types of ADMIXTURES
  • Water-Reducing Admixtures These additives, also
    known as plasticizers or superplasticizers, are
    used to improve the workability of concrete
    without adding excessive water. They help reduce
    the water-cement ratio while maintaining or even
    increasing the fluidity of the mixture. This
    results in more durable and higher-strength
    concrete.
  • Air-Entraining Admixtures These additives
    introduce tiny air bubbles into the concrete
    mixture, which increases its resistance to
    freeze-thaw cycles. The air voids allow room for
    expansion when water inside the concrete freezes,
    preventing cracking and damage.
  • Accelerators Accelerating admixtures speed up
    the rate of hydration (the chemical reaction
    between water and cement) in concrete, resulting
    in faster setting and early strength gain. This
    can be particularly useful in cold weather
    conditions or when rapid construction is needed.
  • Retarders Retarding admixtures, on the other
    hand, slow down the hydration process, extending
    the setting time of concrete. They are beneficial
    when working in hot weather or when there's a
    need for extended workability time.

4
Types Of ADMIXTURES
  • Pozzolanic Admixtures These materials, such as
    fly ash and silica fume, are added to concrete to
    improve its durability and resistance to chemical
    attacks. They react with calcium hydroxide
    produced during the cement hydration process to
    form additional cementitious compounds.
  • Corrosion-Inhibiting Admixtures These additives
    are used to protect steel reinforcement within
    concrete from corrosion, which can lead to
    structural deterioration. They work by forming a
    protective layer on the steel surface or by
    reducing the permeability of the concrete.
  • Coloring Admixtures Coloring agents can be added
    to concrete to achieve a desired color or
    aesthetic effect. These additives are often used
    in decorative concrete applications.
  • Fiber-Reinforcing Admixtures These admixtures
    introduce various types of fibers (such as steel,
    synthetic, or glass fibers) into the concrete mix
    to enhance its tensile strength, crack
    resistance, and impact resistance.

5
Jemkon Admixtures
  • Jemkon has the best wide range of admixtures for
    you concrete.
  • Admixtures are used in concrete to change its
    properties.
  • For Best quality admixtures contact Jemkon.
  • Contact No - 91 8956740753
  • Email - enquire_at_jemkon.com
  • Website - Jemkon
Write a Comment
User Comments (0)
About PowerShow.com