Patching Repair Mortar for Large Concrete Floors
DESCRIPTION
A premixed mixture of portland cement, plasticised additive, acrylic binder, high performance fibre and natural silica sand and aggregate with selected shape, grading, high physical quality and mechanical performance, designed to have high compressive and flexural strength with good abrasion resistance and smooth finished surface.
USES
Deltafloor CFT is one component cementitious material that just need the addition of clean water and especially used for reinstatement of large damaged or deteriorated concrete floors. It is ideally suited for all industrial areas subjected to medium and heavy traffic, for example warehouses, traffic lanes, engineering workshops, car parks, garage, laboratories, etc.
ADVANTAGES
- High compressive and flexural strength
- Shrink compensated with the addition of special fibre
- Good abrasion resistance with smooth surface
- Very suitable for large areas of concrete floors
- Easily compacted which eliminates honey combing and voids
- Contains no chloride admixtures
- Can be used as a repair flooring for cold storage area
INSTRUCTION FOR USE
Surface Preparation
Identify the repair area, saw cut or cut back the extremities of the repair location to a depth 10 mm to provide a square edge and to avoid delaminating. The substrate surface must be sound, free from oil, grease or any loose adherent material. Any loose material on repair area may exhibit poor bonding. If any, reinforcement bar should be cleaned from corrosion deposits – grit blasting is recommended.
Priming
Priming is required to enhance the bonding of Deltafloor CFT substance with the concrete substrate. Deltabond SB is the most recommended priming material for this system.
Application
A mechanically powered grout mixer should be used for best results; a high shear mechanical mixer should be used for quantities up to 50 kg. Before application it is better to ensure your mixing capacity and labor to be able to have continuously working method and best result.
Deltafloor CFT is supplied in 25 kg bag, which needs 3 - 3.5 litres of water per bag depending on the required consistency, and this will give a thickness of approximately 1.4 cm of hardened material. Clean water is minimum requirement for best quality. Put the 2/3 of water into mixing bowl, pour Deltafloor CFT slowly as the mixer blend them thoroughly, pour the rest of the water to adjust your consistency mixture.
Deltafloor CFT has to be poured soon after mixing to gain full benefit, ensure to use proper trowel method to level the Deltafloor CFT substance, a metal blade trowel will make a smooth finish. Deltafloor CFT should be placed at minimum 6 mm up to 30 mm thickness in a single pour, which makes it possible to gain more thickness by multi layers.
STORAGE
Deltafloor CFT has a shelf life of 12 months if kept in a dry store in its original, unopened bag.
TECHNICAL DATA
Compressive strength (ASTM C942: 1999) | 20 N/mm2 @ 1 day |
30 N/mm2 @ 7 days | |
55 N/mm2 @ 28 days | |
Setting time | 5 hours (intial set) – 6.5 hours (final set) |
Fresh wet density | Approximately 2300 kg/m3 |
Modulus of elasticity (BS 1881 part 121 1983) | 30 KN/mm2 @ 28 days |
Bond Strength | Please use Deltabond SB for best result |
Packaging and Size | 25 kg Bag |
HEALTH & SAFETY
Deltafloor CFT is not flammable material. Deltafloor CFT may cause harm in some skin contact, avoid contact with skins, eyes and inhalation of vapor. Protective gloves and eye protection are highly recommended during work of application.