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Application

Suitable for the repair of all types of concrete requiring low permeability and where high compressive strength is not critical, including vertical and overhead elements.

Description

Single component, lightweight, high build, polymer-modified, cementitious repair mortar designed for use in concrete repair works.


Cempatch HB is mixed with water to produce a thixotropic mortar suitable for vertical and overhead applications.


Features and benefits:

  • Thixotropic properties allowing for extra high build for vertical and overhead applications.
  • Excellent low sag properties.
  • Can be spray applied efficiently by the wet spray technique.
  • High bond strength, ensuring monolithic performance of the repair.
  • Low permeability to water, providing excellent protection to steel reinforcement and host concrete.
  • Compatible with non-structural concrete of compressive strength 15–25 N/mm².
  • Contains no chlorides.
  • Non-flammable.
  • Complies with BS EN 1504-3, Class R2.


Consult manufacturer's datasheet for detailed preparation, priming and mixing instructions.

General information

Color

Grey

Finish

Smooth

Material

Cement

Polymer-modified cement

Shape

Formless

Length

Bespoke

Width

Bespoke

Height

Bespoke

Warranty description

Ten year

Uniclass

Pr_20_31_53_15 Concrete repair mortarsPrimary
Pr_20_31_53_65 Polymer-modified cementitious mortars

CAWS

C42/315 Protective coating to reinforcement

C42/310 Repair mortar

Specification data - Concrete repair mortars

Standard

To BS EN 1504-3.

Mortar type

Cement-based polymer-modified.

Performance requirement class

R2.

Guidance for specification option:

For repair principles 3.1, 3.3, 7.1, and 7.2.

Density

1.5 g/cm³.

Guidance for specification option:

+/- 0.1.

Manufacturer guidance

Fresh wet density.

CompressiveStrength

To BS EN 12190, ≥20 N/mm² (after 28 days).

Guidance for specification option:

≥10 N/mm² (after 1 day).

Flexural strength

To BS EN 12190, >3.5 N/mm² (after 28 days).

Adhesion bond strength

To BS EN 1542, ≥1.5 N/mm².

Application thickness

100 mm (maximum).

Guidance for specification option:

Can be applied in a single application of up to 100 mm thickness in vertical applications, and up to 60 mm thickness in overhead applications without the need for formwork.

Mix

18 kg powder: 3.25 L water.

Application temperature

3°C (minimum).

Chloride Ion content

To BS EN 1015, ≤0.04%.

Freeze/ Thaw Resistance

To BS EN 13687, ≥0.8 N/mm².

Sustainability data

Contains Red List materials

No

Country of material origin

United Kingdom

Country of product manufacture

United Kingdom

Material

Cement

Polymer-modified cement

Manufacturing plant location

Expected Life

20 year

Literature

Cempatch HB TDS

Cempatch HB TDS

Cempatch HB MSDS

Cempatch HB MSDS