Concrete Repair Mortars

Weber.cem HB30

Acrylic-polymer modified high-build façade repair mortar.

Description:

weber.cem HB30 is a single-component, polymer-modified, high-build cementitious mortar, designed for concrete repairs to facades where high compressive strength is not the major consideration. It requires only the addition of clean water to produce a lightweight, low-permeability, medium-strength mortar suitable for both soffit and vertical repair situations.


Uses:

  • High-build mortar to repair building facades
  • Overhead and vertical repairs to soffits, decks and columns
  • Repair of voids and honeycombed areas

Features & Properties:

  • High-build properties – up to 100 mm vertically and 75 mm overhead, without formwork
  • Achieves more than 30 N/mm2 in 28 days
  • Compatibility with concrete greater than 20 N/mm2
  • Unique shrinkage compensation system provides long-term dimensional stability. Less than 0.02% shrinkage at 28 days
  • Easy to apply, with excellent application properties
  • Low permeability to water, carbon dioxide and chlorides
  • Contains fibres and spray dried acrylic polymer
  • Agrément approved as part of the weber.cem Concrete Repair System
  • High-build mortar to repair building facades
  • Overhead and vertical repairs to soffits, decks and columns
  • Repair of voids and honeycombed areas

Technical Data:

All test results were obtained at 20°C, unless otherwise stated. 2.5 litres of water per 20 kg bag

  • Compressive strength* 7 days 23 N/mm2 28 days 30 N/mm2
  • Flexural strength 28 days 3.5 N/mm2
  • Tensile strength 28 days 2.7 N/mm2
  • Dynamic modulus of elasticity 28 days 15.0 kN/mm2
  • Drying shrinkage (25 x 25 x 285 mm prisms) 28 days < 200 microstrain 25°C, 50% RH
  • Carbon dioxide barrier, equivalent concrete 200 mm thickness at 10 mm (Taywood method)
  • Water absorption ISAT (BS 1881-208:1996) 10 min. 0.02 ml/m2/sec
  • Fresh wet density 1425 kg/m3
  • Working time 30 – 45 minutes

* Value obtained in laboratory conditions.
Achievement at 28 days strength is dependent on site conditions, water addition and application technique.
Typically, compressive strength will vary between 25 and 35 N/mm2 at 28 day

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12 Fenlake Business Centre, Fengate, Peterborough , PE1 5BQ

01733 560362

sales@concreterenovations.co.uk

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