Morcemrest^® Repair

Technical Caracteristics

R4 reparation mortar according to EN-1504-3. 

Advantages and Uses

• High bonding strength to concrete and high elastic modulus.
• High thixotropy. With no risk of coming down from the ceiling.
• Water vapour permeable.
• Good resistance to chlorides.
• Resistant to freeze-thaw cycles
• Joints filling in concrete, prefabricated elements and dilatation joints.
• Retraction shrinkage is compensated to minimise risk of cracking.
• High Resistance to carbonation.
• Weather resistant.
• Restoration of structural elements such as: columns, bridges' beams, treatment plants, tunnels, pillars with a great transfer of load.
• Re-generation of concrete.

Suitable Substrates

• Substrate must be in good condition, clean, free of grease, oil and loose parts (minimum traction strength of 1.5 MPa).
• If necessary, prepare substrate mechanically until leave healthy concrete is reached.
• Absorbent substrates are previously dampened to the point of saturation, avoiding water-logging.
• Apply MORCEMREST J when surface has become matt again .
• If there are reinforcing frames, oxide, greases and oils should be cleaned and bad adhered particles should be removed.
• In case of having oxide frames, use a sandblast or a metallic teeth brush.
• Use IMPLAREST C in order to protect it against corrosion.
• In vertical and horizontal parameter unions expand the joint union up to 10.

Application Procedure

Mortar mixing:

• Add 2/3 of total water 4,5-5l  into a clean bucket and gradually add the powder while mixing.
• Then add the remaining water and mix for 2 more minutes.
• The pot life of the mixed mortar does not exceed 30 minutes at a temperature of +20ºC; therefore do not mix more material than required.

Application:

• Apply MORCEMREST REPAIR with a dented trowel or a spray gun.
• In case it is necessary to press it firmly to get good adhesion and compactness .
• MORCEMREST REPAIR can be applied in several layers, being the minimum thickness of 5 mm per layer.
• On vertical surfaces up to 65 mm thickness can be apply without the help of frames. In horizontal surfaces the maximum thickness should be 100 mm.
• In vertical and horizontal parameter unions fill in the complete width of the joint.

Curing:

• Protect from wind, freeze and sun light during the hardening process.
• In order to avoid excessive desiccation it is advisable to cover the surface with humid sackcloth or plastics during the process of curing.
• The curing process is essential 

Recommendations

• Do not add extra water to the mortar other than the recommended amount and do not remix it.
• Do not apply it under 5ºC or above 30ºC.
• Do not add any cement, sand nor other substances that may alter the proprieties of the material .
• The tools used should be clean with water immediately after being used, in order to avoid the hardening of the material, if not mechanical means will be needed to
• The tools used will be clean with water immediately after being used, in order to remove the products remnants. avoid the hardening of the material, which will need to be remove with mechanical means.
• Please consult with the Technical Department for any application that might not be described in this Technical Data Sheet.
• For all the safety information regarding the use, storage and transportation of the product, please consult our uploaded Safety Data Sheet of the product.
• When applying the repair mortar without a bonding bridge, the foundation of concrete must be rough, clean and well moistened before, but the surface must be free of water at the time of application, that is, the foundation must not be waterlogged. The repair mortar must be applied making it penetrate into the foundation previously prepared and must be compacted avoiding the inclusion of air in order to obtain the required strength, and to protect the reinforcement from corrosion.

Packaging and Storage

MORCEMREST REPAIR served suppliedin 25 kg bags. Shelf life: 1 year storage in its original packaging, away from extreme weather
conditions and humidity.

Technical data

CE Mark

Notas

The information and instructions in this datasheet are based on our current tests and technical knowledge. They are intended as general guidance and do not constitute a binding commitment by PIDILITEPUMA MEA CHEMICALS LLC. It is the sole responsibility of the user to verify, prior to use, that the product is suitable for the intended application and to ensure that it is applied correctly and in accordance with applicable regulations and good industry practice.

PIDILITEPUMA MEA CHEMICALS LLC cannot control how its products are applied on site throughout the entire project and therefore cannot accept responsibility for their application by contractors or other parties involved in the execution of the work. Support visits to the jobsite by our technical staff do not change that. Our responsibility is limited exclusively to defects that can be directly attributed to the supplied products, whether used individually or as part of a system, caused by manufacturing defects.

It is the responsibility of the project designer, site manager, contractor, or other relevant professionals to ensure that the selected products are appropriate for the specific project, taking into account their properties, the substrate, site conditions, and any existing issues.

In the event of a claim, the original packaging must be provided to ensure proper product traceability.

Any performance values stated for PIDILITEPUMA MEA CHEMICALS LLC products or construction solutions, whether in UNE standards or other applicable standards, are based solely on the specific test conditions defined in those standards (such as substrate type, temperature, and humidity). These values may not apply to situations where products are tested or used under different conditions.