Reinforcement of wall panels in bending and shear with CRM
The reinforced plaster technique, called CRM, is very common for reinforcing masonry piers and involves the use of a reinforcement frame made of preformed alkali-resistant glass fiber meshes, with thermosetting primer, embedded in a lime-based structural mortar. The meshes are connected through preformed “L” composite connectors in glass fiber and thermosetting resin with improved adhesion and fixed to the masonry elements through chemical anchors (epoxy resin or high-performance, rapid-hardening vinyl ester resin). Alternatively, stainless steel helical bars can be used. The thickness of CRM reinforcement systems is usually between 30 and 50 mm and the intervention allows for increases in shear resistance in the plane and in bending, without excessively modifying the rigidity of the masonry panel.
Features
- High resistance and reduced thicknesses
- Extremely flexible networks
- Corrosion assistance and resistance to alkaline environments
Operational Phases
- Preparation of the substrate
- Application of a first layer of mortar
- Installation of the network
- Preparation of the connection systems
- Application of the second layer of mortar
- Smoothing
Products and Systems
The following products, which are part of the system, are CE marked:
Kimitech WALLMESH HR-HD
Preformed A.R. glass fibre structural mesh
Kimitech WALLMESH HR
Preformed A.R. fiberglass mesh with sizing thermosetting
Kimitech WALLMESH MR-HD
Preformed H.R. glass fibre structural mesh
Kimitech WALLMESH MR
Preformed A.R. fiberglass mesh with sizing thermosetting
Kimitech WALLMESH CRM 99x99
Rigid structural mesh made of preformed fiberglass
Kimitech WALLMESH CRM 66x66
Rigid structural mesh made of preformed fiberglass
Kimitech WALLMESH CRM 33x33
Rigid structural mesh made of preformed fiberglass
Kimitech WALLMESH CORNER HD
Preformed A.R. fiberglass structural corner element
Kimitech CORNER CRM 33x33, 66x66, 99x99
Preformed fiberglass corner
Kimitech PLUG VR/HD
Preformed "L" shaped connector with improved grip
Kimitech PLUG VR
Pre-formed “L” connector with improved adhesion
Kimitech PLUG CRM
Preformed “L” connector in fiberglass
Kimisteel INOX X-T
AISI 304 stainless steel connector for T-connection between Kimisteel INOX X-BAR helical bars
Kimisteel INOX X-CAP
Fixing system for anchoring spiral bars Kimisteel INOX X-BAR
Kimisteel INOX X-BAR
Helical inox steel bars for structural reinforcement
Kimitech VINYL CTR
Bi-component vinylester resin in cartridges for anchoring
Kimitech EPOXY CTR
Bi-component epoxy resin cartridges for anchoring injections
Tectoria M15
NHL based mortar used for masonry, break-fill, anchoring, plasters and reinforcing castings
Basic MALTA M15
Mortar made out of natural hydraulic lime for masonry class M15
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