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Flexcrete - Monolite is a lightweight, high build, shrinkage compensated, polymer modified mortar for the repair, rendering and profiling of concrete, brick or stone substrates.
Flexcrete - Monolite is a lightweight, high build, shrinkage compensated, polymer modified mortar for the repair, rendering and profiling of concrete, brick or stone substrates.
Monolite is a single component, polymer modified, fibre reinforced, low density cementitious repair mortar. The thixotropic nature of the product enables easy high build hand and trowel application for the repair of voids and the rendering and re-profiling of vertical, horizontal and overhead surfaces.
Features
Application
Preparation
Mechanically remove all damaged concrete, brick or stone back to a sound core. Except in new construction, expose the full circumference of the steel reinforcement 25mm behind the bars and 50mm beyond visible corrosion.
On cutting back, feather edges must be avoided. Step the perimeter of the repair to a depth of 10mm preferably using a power chisel or by saw or disc cutting. The areas to be repaired must be free from all unsound material including laitance dust, oil, grease, corrosion by products and organic growth.
Smooth surfaces should be roughened and reinforcement cleaned to bright steel using wet grit blasting techniques or equivalent approved methods.
The prepared substrate should be thoroughly soaked with clean water until uniformly saturated without any standing water.
Treatment of Steel Reinforcement
Treat exposed steel reinforcement with 2 x 1mm coats of STEEL REINFORCEMENT PROTECTOR 841 applied by brush.
Priming of Concrete
MONOLITE does not generally require a primer. Highly porous substrates may be primed with a POLYMER ADMIXTURE 850 slurry coat. The slurry coat should also
be used when treating larger areas of waterproof concrete.
Mixing
MONOLITE should be mechanically mixed using a forced action pan mixer or in a clean drum using a slow speed drill and paddle. A normal concrete mixer is NOT suitable.
For normal applications, use between 2.7-3.1 litres of clean water per 18kg bag. For part bags, this equates to 6-7 volumes of powder to 1 volume of water. Typically, for high build applications use 2.9 litres of clean water per bag and mix for 2-3 minutes. Mix to entrain as little air as possible. Use without delay.
Placing
MONOLITE can be applied by float or trowel in single layers up to 100mm. Shuttering may be required to allow for compaction if working to reveals. Care must be taken to ensure that an initial thickness of mortar, typically 5-10mm, is well placed and adhered before building up to larger depths.
For multi-layer applications, it is important to ensure that previous layers are well keyed and stable but not fully set (typically 2-6 hours) prior to the application of subsequent layers. No inter-layer priming is required. Final profiling is achieved with a steel float.
Curing
Normal concreting procedures must be adhered to. Protect from strong sunlight and drying winds with CURE-SEAL WB, polythene sheeting, damp hessian or similar.
Data sheet
Specific References
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