REPAIR MORTARS AND BINDERS
Monobond®
is a polymer latex additive for modifying cement concrete/mortar/plaster/grouts.
The addition of Monobond® improves mechanical properties especially flexure and tension. Due to low permeability of polymer-modified systems, remarkable reduction in prevention of carbonation, chloride ion penetration is observed. Also chemical resistance improves significantly.
The addition of Monobond® imparts resilience to the cement matrix, thereby improving impact resistance. Also the modified cement matrix cures in air, eliminating the necessity of wet curing.
It is necessary to mix Monobond® in water first prior to addition in cement mortar/concrete.
MONOBOND®-SBR
Styrene Butadiene Polymer Latex Additive For Polymer Modified Concrete/Mortar/Grouts.
MONOBOND®-SBR is a modified milky white styrene butadiene polymer latex liquid additive used for bonding, waterproofing, repair mortar and concrete. The addition of MONOBOND®-SBR enhances mechanical properties especially flexure, impact, tensile strength, shrinkage & permeability reduction and prevents cracking. It improves resistance against ingress of chloride ions, alkalies, sulphates significantly.
Application Procedure
- Surface Preparation: Remove all loose particles, dust and dirt from existing concrete substrate using wire brush or scrubber. De-grease the surface by using compatible solvents. Cut the section in any geometrical shape for at least 10 mm depth or as required at extreme edges to avoid feathering & to provide strong bond. Roughen the surface with wire brush, light scrabbling or grit blasting for better mechanical anchorage. Expose corroded bars in repair areas & clean all loose corrosion scales. Apply Rust converting primer-Feovert followed by anti-corrosive epoxy coating system-IPNet RB 2 coats
For Bond Coat:
- In a clean container, add Monobond SBR and Cement in equal proportion by weight. Mix it thoroughly to form a desired consistency. Apply the mix by brush on the surface of uniform thickness. Pour mortar or concrete over it within the tacky period of Monobond SBR bond coat
For Mortar/Concrete:
- In a clean container, add Monobond SBR, Cement, and Sand in proportion 1:5:15 by weight. Mix it using suitable sized drum with heavy-duly electrical drill machine filled with spiral paddle mixer at slow speed of 400-500 rpm. Add water slowly until required consistency is achieved. Do not add excess water. In the same proportion mix add 10 mm aggregates upto 20% for preparing concrete. Place this mortar and concrete over the prepared surface
For Waterproofing:
- In a clean container, add Monobond SBR and Cement in 1:2 proportion by weight. Mix it thoroughly to form a thick consistency uniform mix. Apply the mix by brush on the water saturated surface of uniform thickness. Use this mix within pot life
EL-Monobond®-200
is a two component non re-emulsifiable high molecular weight epoxy latex system conforming to ASTM standards.
Application Procedure
- EL–Monobond®-200 is mixed first under stirrer in the prescribed proportion and diluted with approximately 50% water of the total mix (refer technical data). It is then slowly added to the (cement + sand + 50% water) mix. Planetary or suitable mixers shall be used for efficient mixing
EPCO®KP-350 + EPCO®HP-350
Epoxy Repair Mortar System
EPCO®KP-350 + EPCO®HP-350 epoxy mortar is a three-component system with non-shrink and high mechanical strength properties.
Application Procedure
- Mix Part A(EPCO®KP-350) and Part B (EPCO®HP-350) in the ratio of 2:1 by weight in a clean plastic container
- Stir thoroughly for 5-10 minutes so as to achieve a uniform mix
- Add component C-Graded Quartz filler slowly and mix thoroughly to achieve a uniform mortar mix
- The mortar (A+B+C) after mixing shall be used within 30 minutes hence it is ideal for mixing small quantity at a time
- Before application of mortar the surface to be primed with bond coat of KP-350:HP-350 neat epoxy coating (Part A:Part B in 2:1 by weight)
- It is important to clean, degrease and abrade the substrate thoroughly before applying the bond coat using mechanical wire brushes
Molith® MC
Free flow, shrinkage compensated, high strength microconcrete
Molith® MC is a free flow, shrinkage compensated, single component microconcrete used in high volume repairs of concrete structures.
Application Methodology
- All areas of application shall be free from oily residues, dust and loose particles
- Corroded reinforcement shall be cleaned thoroughly and treated with anti corrosive coating Feovert® & IPNet®-RB
- The substrate to be treated shall be wetted with clean water (Saturated surface dry condition) prior to placement
Mixing:
- Use 25 kgs of Molith® MC bags once opened. Pour mixing water gradually into Molith® MC in a standard mixer until required consistency is achieved. For 25 kgs mix water requirement will be typically 3.0 to 4.0 ltrs. For larger volumes use concrete mixer.
Molith® MC SILVER
Free flow, shrinkage compensated, high strength microconcrete
Molith® MC SILVER is a free flow, shrinkage compensated, single component micro concrete used in high volume repairs of concrete structures.
Application Methodology:
- All areas of application shall be free from oily residues, dust and loose particles
- Corroded reinforcement shall be cleaned thoroughly and treated with anti-corrosive coating Feovert® & IPNet®-RB
- The substrate to be treated shall be wetted with clean water (Saturated surface dry condition) prior to placement
Mixing:
- Use 25kgs of Molith® MC SILVER bags once opened. Pour mixing water gradually into Molith® MC SILVER in a standard mixer until required consistency is achieved. Using planetary mixer is desired for optimum performance. For 25kgs mix water requirement will be typically 3.0 to 4.0 ltrs. For larger volumes use concrete mixer
Molith®-PMM
Ready To Use Single Component Polymer Modified Repair Mortar
Molith®-PMM is a ready to use single component cementitious polymer modified mortar for repairing concrete structures.
Method of Use:
- Clean the concrete surface to be repaired thoroughly, remove dirt, dust oil, loose concrete etc. Remove rust from exposed reinforcement and provide corrosion protection with Feovert & IPNet RB where necessary
- Apply suitable bonding agent of EL-Monobond® where necessary
- Mix Molith®-PMM powder with water in the proportion of 170 to 190ml water to 1kg of Molith®-PMM powder to get a cohesive mortar. Apply this to the repaired surface and trowel it to restore the surface. On difficult surfaces use latex cement primer andwhere subsequent mortar finish is required over the repaired area scratch the surface with wire to create a mechanical key
Molith®-RM
Ready To Use Single Component Repair Mortar
Molith®-RM is a ready to use single component cementitious mortar for repairing concrete structures.
Method of Use:
- Clean the concrete surface to be repaired thoroughly, remove dirt, dust oil, loose concrete etc. Remove rust from exposed reinforcement and provide corrosion protection with Feovert & IPNet®-RB where necessary
- Apply suitable bonding agent of EL-Monobond® where necessary
- Mix Molith®-RM powder with water in the proportion of 160 to 190ml water to 1kg of Molith®-RM powder to get a cohesive mortar. Using planetary mixer is desired for optimum performance. Apply this to the repaired surface and trowel it to restore the surface. On difficult surfaces use EL-Monobond® coat and where subsequent mortar finish is required over the repaired area scratch the surface with wire to create a mechanical key