Batimix Mortar W-840 Z

Description

BATIMIX Mortar W-840 Z is a fast-setting cementitious-based material. It is used to stop water leakages and moisture-ingress. It is made from cement, carefully-graded sand, and waterproofing additives.

BATIMIX Mortar W-840 Z allows the passage of water vapor through the concrete. It is applied against active or passive water pressure surfaces.

Main Purpose

BATIMIX Mortar W-840 Z is primarily used for the following applications:

• Plugging water leaks and seepage
• Sealing leaking cracks and wet surfaces
• Fixings in water structures where immediate use is required
• Installation of steel elements in concrete or masonry applications
• Underwater repair works

Features

BATIMIX Mortar W-840 Z has the following characteristics:

• Ready-to-use it allows for consistent properties of the fresh and hardened product
• Sets immediately from 30 seconds to 5 minutes after mixing
• High-degree of adhesion/bond to the substrate
• Extremely-low water absorption
• increased water vapor transmission
• Improved sulfate resistance, overall durability, and high compressive strength

Properties

• Appearance: powder
• Bulk density : around 1.35
• Chloride content: nil
• Grain size : 0 to 1.5 mm
• Water permeability after 48 hours (EN 1015-21): Less than 0.02 mL/cm²
• Average setting time (ASTM C 191): 30 seconds to 5 minutes
• Compressive strength after 28 days (ASTM C 109): Min. 35 MPa
• Flexural strength after 7 and 28 days (ASTM C 348): Min. 6 MPa
• Adhesion to substrate (EN 1015-12): Min. 0.9 MPa

Health and Safety

BATIMIX Mortar W-840 Z contains cement that is irritating to the eyes and skin. In case of contact, rinse immediately with plenty of water. Wear suitable gloves. For further information, kindly refer to the product's Material Safety Data Sheet.

Directions for Use

1 – Substrate preparation For optimum bonding and performance, the surface must be clean, sound, and free of any surface contamination. Leaks must be cut out back to sound material, leaving an appropriate chase for receiving the BATIMIX Mortar W-840 Z.

2 – Product preparation Setting is dependent largely on the amount of mixing water used. In general, 1 kg of BATIMIX Mortar W-840 Z should be mixed with 0.25 liters of clean water.

The mixing should be done with a medium-speed mechanical mixer for maximum 15 seconds. Mix only as much material as can be used within 20 seconds.

3 – Application To avoid wastage, only small quantities of BATIMIX Mortar W-840 Z should be mixed. After mixing, apply the product to the appropriate area immediately. Work the mixture well and then hold it firmly into place until setting. Remove any excess material.

Storage

BATIMIX Mortar W-840 Z should be stored in a closed and dry place. Avoid freezing and excessive temperatures. Unopened bags have a shelf life of six months when stored as recommended.

Packages

• 25 kg paper bag