RAKAM CON-CRM Concrete Repair Mortar 402

• Easy to mix and apply
• Excellent bond strength to concrete substrate.
• Good abrasion resistant
• Shrinkage-compensated
• High compressive strength
• Low permeability providing protection against the ingress of Chlorides and Carbon Dioxide

CON CRM is designed to provide a structural grade repair mortar particularly in situations where abrasion resistance and imperviousness are required such as:
• General concrete repair
• Repairs to structural concrete elements, e.g. reinforced beams and columns
• Highly trafficked surfaces, particularly transition strips adjacent to mechanical bridge joints.
• Repairs in marine environments or other situations, where concrete is in contact with chloride or Sulphate solutions
• Floor repairs in industrial areas, especially if exposed to oil or lubricants
• Honeycombing repairs
• Pile cap re-profiling and treatment

Apply the product manually with a trowel or spatula to ensure thorough compaction around the reinforcement and against the edges of the reinstatement area. 
The repair then can be finished with a steel trowel. 
The product can be applied up to 60 mm in thickness in vertical, and in 100 mm layers in small pockets or horizontal plane. 
The material should not be applied at less than 10 mm thick layer. 
Use a steel trowel for the finishing touch.

MIXING
For mixing process, a slow speed drill (200- 300pm) fitted with a suitable paddle is recommended. 
Place 3.5liters of cold clean water in the mixing bucket. 
With the drill in operation, add the entire content of the 25 kg bag of CON CRM while mixing continuously till a uniform lump free consistency mix is achieved. 
Powder must always be added to water. 
Allow the obtained mix to stand for about 3 minutes and then remix before application. 
Under no circumstances should partial mixing be considered.

CURING
 The repaired area shall be cured in accordance with good concrete curing practice and protected from drying winds, sun or excessive heat. 
Curing shall be done with non-degradable curing compound BETOCURE AR. 
Alternatively; a wet hessian cloth covered with polyethylene sheet can also be employed. 
Curing should begin as soon as final finish is achieved. In fast drying conditions, supplementary curing with Polythene Sheets must be used.