Batimix Expansion M-820

Expansive mortars and grouts admixture for controlled volume changes

Description

BATIMIX Expansion M-820 is a powder admixture designed to produce a slow and controlled expansion before the hardening of mortars and grouts. It does not contain chlorides or other ingredients that could potentially contribute to stress corrosion in steel.

Main Purpose

BATIMIX Expansion M-820 is used to prepare mortars, which develop controlled gaseous expansion that occurs before the initial set, forcing the mixture into close contact with surrounding surfaces. This product is used as a shrinkage-compensating material for plaster/render mortars applied on vertical, horizontal, or overhead surfaces. It can be incorporated in all types of mortars and grouts for masonry and repair, such as plastering, rendering, patching, and pointing.

Features

Mortars prepared with BATIMIX Expansion M-820 are characterized by the following:

In the plastic state:

• Slow and controlled expansion before initial set
• No detrimental effect on workability or setting

In the hardened state:

• Reduced crack occurrence due to plastic, drying, thermal, and autogenous types of shrinkage
• Increased joint spacing in pavements and walls
• Reduced water permeability and improved durability
• Longer mortar service life and better surface quality

Dosage

0.05% to 0.5% of the cement weight

Color

Grey powder

Available Packages

• 1 t IBC
• 10 kg plastic bag
• 2 kg plastic bag

Health and Safety

BATIMIX Expansion M-820 is not a hazardous material. However, it should not be swallowed or allowed to come into contact with skin and eyes. Suitable gloves and goggles should be worn. For additional information, kindly refer to the product’s Material Safety Data Sheet.

ReferenceMS-PR-5622