Batimix Mortar 760

Description

Two-component BATIMIX Mortar 760 is a ready-to-use high-performance slurry, which waterproofs and protects concrete and masonry surfaces from moisture, humidity, and various aggressive agents. The powder component (A) consists of a blend of Type I Portland cement, fillers, carefully graded sand, and selected active chemical compounds. The liquid component (B) is based on elastomers and synthetic resins for improving waterproofing and elasticity.

Main Purpose

BATIMIX Mortar 760 is particularly suitable for waterproofing concrete surfaces subjected to a high degree of moisture, rain, or water. The product has elasticity and elongation properties. It is suitable for use in zones that have cracks and small deforming problems. It is applied to structurally sound cementitious-based surfaces, whether old or new. Typical areas of application include residential facades, swimming-pools, containers, sewerage plants, and basements.

Features

Applied to sound masonry structures, BATIMIX Mortar 760 blocks capillaries and minor shrinkage-cracks, preventing further water ingress under active or passive water pressure. The product offers the following advantages:

• High adhesion to substrates and workability
• Relative rate of water absorption (ASTM C 1403), which is around 20 times less than the reference mixture made without active waterproofing chemicals
• Modulus of elasticity (ASTM D 638), which is around 8 times less than the reference mixture made without synthetic resins. It can therefore bridge, at 23 ºC, an elongation of cracks of up to 30%

Properties

• Appearance: component A: grey powder, component B: white liquid
• et Specific gravity: component A: around 1.51, component B: around 1.05
• Grain size: 0 to 1 mm
• Compressive strength after 28 days (ASTM C 109): > 25 MPa, due to elasticity
• Flexural strength after 28 days (ASTM C 348): > 7 MPa, due to elasticity
• Pull-off strength against concrete at 28 days (EN 1015-12): 1.1 MPa
• Rate of water absorption at 28 d (ASTM C 1403) : 2.4 grams / m²
• Modulus of elasticity at 28 d (ASTM D 638): 12,500 MPa

Health and Safety

BATIMIX Mortar 760 contains cement and irritating chemicals that may harm the eyes and skin. In case of contact, rinse immediately with plenty of water. Wear suitable gloves. For further information, kindly refer to Material Safety Data Sheet.

Directions for Use

1 – Substrate preparation The concrete or masonry surface to be treated with BATIMIX Mortar 760 must be clean and have an “open” capillary system. Remove dirt, grease, laitance, etc. that can affect uniform adhesion by means of high pressure water jetting, wet sandblasting, or wire brushing. Prior to application, treated surfaces should be slightly dampened.

2 – Product preparation Mix the A and B components (25-kg powder and 8-kg liquid) correctly and thoroughly by adding the liquid component to the powder component until homogenous fluid slurry paste is obtained. In case higher fluidity is required, additional amounts of clean water may be added to the mix. The mixing should preferably be done with a mechanical stirrer for at least 3 minutes. Prepare a quantity of product as much as can be applied in 20 minutes at 23 ºC.

3 – Application Apply a first coat of BATIMIX Mortar 760 of a thickness of not less than 1.5 mm using a masonry brush or roller. A masonry trowel may also be used in case of plastic consistency. The slurry should be distributed evenly by working it well into the surface and making it intimately adhere to the treated area. When specified, apply a second coat of around 1 mm after not less than 24 hours. The approximate coverage varies from 13 to 16 m² per 33 kg of product, depending on the type and porosity of the substrate.

4 – Curing The treated surface with BATIMIX Mortar 760 should be cured and protected against rain, sun, wind, and frost for a minimum of 3 days. Careful post-watering should be carried out at intervals of at least twice each 24 hours, starting the day following the application.

Specifications / Compliance with Standards

BATIMIX Mortar 760 exceeds the requirements of ASTM C 387 for for Standard specification for packaged, dry, combined materials for mortar and concrete to suit specific product’s application requirements.

Storage

Two-component BATIMIX Mortar 760 should be stored in a closed and dry place. Avoid freezing and excessive temperatures. Unopened bags and pails have a minimum shelf life of six months when stored as recommended.

Packages

• 25 kg paper bag