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Application

Suitable for the repair of all types of structural concrete where high strength and extremely low shrinkage properties are required, including:

  • Vertical and overhead elements.
  • Structural elements in buildings.
  • Water retaining structures.
  • Industrial plants.
  • Bridges.


Deep pockets can be filled in a one application depending on the shape of the pocket and the volume of exposed reinforcement.

Description

High-build, hand/ wet-spray applied, one component polymer-modified and fibre-reinforced structural repair mortar.


Cempatch HB45 is a thixotropic mortar made up of dry powders, selected aggregates, polymers and fibres, which when mixed with water, allows it to be used vertically and overhead.


Features and benefits:

  • Provides extremely low permeability to water, carbon dioxide and chlorides.
  • Shrinkage compensated, providing long-term dimensional stability.
  • Easy to apply. Single component, requires only the addition of water.
  • High bond strength, ensuring monolithic performance of the repair.
  • Can be spray applied efficiently by the wet spray technique.
  • Thixotropic properties allowing extra high build for vertical and overhead applications.
  • Contains no chlorides.
  • Suitable for internal and external application.
  • Water vapour permeable.
  • Suitable for use in contact with potable water.
  • Easy to finish.
  • Cost effective, hand or wet spray applied, and no formwork is required.
  • Suitable for use with cathodic protection systems.
  • Extremely low permeability, which retards chemical attacks in aggressive environments.
  • Non-flammable.
  • Complies with BS EN 1504-3, Class R4.


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

General information

Color

Grey

Finish

Smooth

Material

Cement

Polymer-modified cement

Fibre-reinforced

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_30 Fibre-reinforced 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.

Guidance for specification option:

Complies with Highways England, Standards for Highways, Specifications for Highways Works, clauses 5703, 5704, 5716 (Repair Mortar).

Mortar type

Cement-based polymer-modified fibre-reinforced.

Performance requirement class

R4.

Guidance for specification option:

For repair principles 3.1, 3.3, 4.4, 7.1, and 7.2.

Density

2.15 g/cm³.

Guidance for specification option:

+/- 0.10.

Manufacturer guidance

Fresh wet density.

Working time

20–30 minutes.

CompressiveStrength

To BS EN 12190, ≥50 N/mm² (after 28 days).

Flexural strength

To BS 6319-3, ≥9 N/mm².

TensileStrength

To BS 6319-3, ≥3 N/mm².

Adhesion bond strength

To BS EN 1542, ≥2.25 N/mm².

Capillary absorption

To BS EN 13057, ≤0.2 kg/m²/h^0.5.

Application thickness

80 mm (maximum).

Guidance for specification option:

Can be applied in a single application of up to 80 mm thickness in vertical applications and up to 60 mm thickness in overhead applications. When larger thicknesses are necessary, sections can be built up in stages or with the use of formwork.

Mix

25 kg powder: 3.5 L water.

Application temperature

5°C (minimum).

Chloride Ion content

To BS EN 1015, ≤0.04%.

Freeze/ Thaw Resistance

To BS EN 13687, ≥2 N/mm².

Reaction to fire

To EN 1504-3, Class A1.

Sustainability data

Contains Red List materials

No

Country of material origin

United Kingdom

Country of product manufacture

United Kingdom

Material

Cement

Polymer-modified cement

Fibre-reinforced

Manufacturing plant location

Expected Life

100 year

Literature

Cempatch HB45 TDS

Cempatch HB45 TDS

Cempatch HB45 MSDS

Cempatch HB45 MSDS