webercem spray DSF - Repair Mortar
Verified by manufacturer 3 months ago
Fibre-reinforced dry spray structural repair concrete
Application
- Repairs to large areas of structural concrete.
- Repairs of highway structures: bridge columns, piers, deck soffits, beams, abutments, parapets, retaining walls, tunnels and viaducts.
- Repairs of marine structures: jetties, piers, quays, seawalls, concrete offshore platforms, docks and drydocks.
- Repairs of fire damaged concrete structures.
- Sealing of mine roadways and tunnels.
- Structural enhancement of mineshafts.
- Structural encasement of steel sections, pylons, chimneys and cooling towers.
- Rock and embankment stabilization.
- Thin concrete overlays 25–50 mm on columns, beams and soffits.
- Increasing cover to steel in RC structures.
- webercem spray DSF has been designed for use in both thin and thick sections up to 300 mm.
Description
Fibre-reinfoced dry spray structural repair concrete designed to give high strength, low rebound, low wastage and to maxmise application thickness. Added alkali-resistant glass fibres give higher tensile strength, reduce shrinkage cracking and rebound.
Containing graded inert limestone aggregates and dust suppressants, webercem spray DSF has conformity testing to BS EN 1504-3 and meets the requirements for a Class R4 repair product.
Features and benefits:
- Economical - low rebound.
- No siliceous aggregates, no caustic accelerators.
- High-build - up to 150 mm thickness can be applied in one pass on vertical and overhead surfaces without any additional mesh reinforcement.
- Low permeability to water and chlorides.
- Low chloride ion diffusion: better protection of reinforced concrete marine structures.
- Complies with National Highways specifications for repairs to highway structures.
- Fibres provide better strain relief and stress distribution.
- Thin overlays 25-50 mm on columns piers and walls without the need for mesh, providing extra cover to steel.
- Class 4 repair product meeting the requirements of BS EN 1504-3.
General information
Material | Cementitious |
Shape | Formless |
Uniclass | |
CAWS | C42/325 Proprietary sprayed mortar/ concrete |
Specification data - Pre-blended concretes
CompressiveStrength | 64.4 MPa |
Chloride Ion content | <0.01%. |
Adhesive bond | 3.2 MPa. |
Carbonation resistance | Pass. |
Modulus of elasticity | 24.5 GPa. |
Capillary absorption | 0.2 kgm-²h-0.5. |
Coefficient of thermal expansion | 30.0 x 10-6/°C. |
Reaction to fire | Class A1. |
Thermal compatibility, part one, freeze-thaw | 2.7 MPa. |
Standard | To BS EN 1504-3. |
Mortar type | Cement-based polymer-modified. |
Performance requirement class | R4. |