Morcemrest® RF 35 R3

Composition

Product based on special cements, selected aggregates and additives, reinforced with fibres.

Features and applications

• Class R3 repair mortar in compliance with EN-1504-3
• High strength adhesion for bonding to concrete and average module.
• Thixotropic, no sagging on roof applications.
• Water vapour permeable.
• Retraction compensated to minimise risk of cracking.
• Good resistance to chlorides.
• Resistant to freeze-thawing cycles.
• Good workability
• High resistance to carbonation.
• Suitable for indoor and outdoor applications.
• Weather resistant.
• Repairs to structural elements such as: balcony overhangs, roofs, car parks, beams / pillars on commercial and residential buildings, prefabricated panels, building façades.
• Regularisation of concrete surfaces.
• Lining of canals, tunnels, bridge and balcony overhangs.
• Rendering of elevator pits, chambers, etc.
• Foundations and repairs to paving.

Substrates

• Substrate must be in good condition, clean, free of grease, oil and badly bonded parts (minimum traction resistance of 1.5 MPa).
• If necessary, make a preparation preferably by using mechanical means and leave to cover the healthy concrete.
• Absorbent substrates must be dampened prior to saturating them, avoiding water logging, apply the product once the surface has acquired a matt appearance.
• If there are any reinforcements, these must first be cleaned of rust, grease and other badly bonded parts. If they are rusted, clean them with sand jets or with a grooved metal brush. Protect the rust with IMPLAREST C.
• On joints of vertical and horizontal supporting walls widen the joint by cutting it to a width of 10 mm with a radial arm saw, and removing the cut material.

Instructions for use

Mixing the mortar:

• Add 2/3 parts of water and progressively mix the total amount of powder while stirring. Next add the remaining water and mix for 2 more minutes. Do not prepare more product than is going to be used for 30 minutes (at + 20ºC).

Application:

• Apply MORCEMREST RF 35 with a trowel or spray gun, apply pressure to ensure adhesion and compact the material firmly.
• MORCEMREST RF 35 can be applied in several layers, with a minimum thickness of 5 mm per layer. On vertical surfaces thicknesses of up to 35 mm can be applied without the aid of molds. The maximum thickness per layer on horizontal surfaces is 75 mm.
• On vertical and horizontal interior wall joints, completely fill the width of the joint.

Curing:

• Protect from wind, ice and sun while product is hardening. To avoid excessive drying it is necessary to cover the surface with moist sackcloth or plastic while curing.
• The curing operation is necessary in all cases.

Cautions and recommendations

• Do not extra water to the mortar other than the recommended amount nor remix.
• Do not apply under 5ºC nor above 30ºC.
• Do not add cement, sand or other substances that could affect the material's properties.
• On surfaces exposed to exceptional circumstances, it is advisable to use the epoxy bonding bridge IMPLAREST EPW.
• Tools and instruments should be washed with water immediately after use, to avoid hardening of the material which would need to be removed mechanically.
• Consult the Technical Department for any application not specified in this Technical Datasheet.
• For all information regarding safety during handling, transport, storage and use of product please consult the current version of the Product's Safety Sheet.