THREE COMPONENT EPOXY & CEMENT BASED MORTAR FOR SEALING OF CONCRETE MORTAR & STONE SURFACES
Hind Cempox (M) is a three component epoxy modified cementitious, thixotropic type, fine textured micro mortar for leveling and finishing of concrete, stone or mortar surfaces.
Hind Cempox (M) has wide range of uses:
Epoxy Modified Cementitious Mortar
|Aspect||Component A (Resin) : Transparent liquid
Component B (Hardener): Transparent yellow liquid
Component C (Filler) : Grey Aggregate powder
|Mixing Ratio||Component A (Resin) : Component B(Hardener) : Component C (Filler) :: 4:1:18|
|Pot Life at 270 C||30min|
|Over Coating Time at 270 C||8hr|
|Density at 270 C||Component A (Resin) 1.140kg/l
Component B (Hardener) 1.070kg/l
Component C (Filler) 1.300kg/l
Mixed (A+B+C) 1.900kg/l
|Compressive Strength (28 days)||> 45 N/mm2|
|Flexural Strength (28 days)||> 5N/mm2|
|Chloride Content (EN1015-17)||< 0.05%|
|Sulphate Resistance||High Sulphate Resistance|
|Modulus of Elasticity||~ 17 GPa|
|Coefficient of Thermal Expansion||~ 13.0 µm/m 0C|
|Coefficient of Carbon Dioxide Diffusion||µCO2 ~ 5400|
|Capillary Absorption (Water permeability)||< 0.5Kg. m-2 . h -0.5|
|Adhesive bond||>2.0 MPa|
|Restrained Shrinkage/Expansion||>2.0 MPa|
|Capillary absorption & permeability to water||< 0.1Kg. m-2 . h -0.5|
|Abrasion Resistance (Taber Test)
(EN ISO 5470-1)
|Weight loss < 3000mg H22 rotation, 1000 cycles/load 1000g|
|Permeability to water vapour||Class 1 : SD <5 m (permeable to water vapour)|
|Impact Resistance (EN ISO 6272-1)|
|Adhesion strength by pull-off test (EN1542)||>2.0 N/mm2 (horizontal with trafficking)|
|Durability Carbonation resistance
Coverage/Consumption : Coverage as Screed/Mortar/ Rendering ~ 2.0Kg/m2/mm . The coverage is depended on the surface porosity, profile , level variations and wastages.
Quality of Substrate
The concrete substrate should be sound and hard (M-25 grade) with a minimum compressive strength of 25N/mm2 and a pull off strength of 1.5 N/mm2
It should be ensured that concrete has attained the design strength and is properly cured. Concrete surfaces should be mechanically prepared or water jetted with high pressure equipment to remove cement laitance, oil and grease contamination if present and obtain a clean dust free surface. Weak concrete to be totally removed and blow holes/voids on the surface if any to be exposed completely. Repair of blow holes/voids and surface leveling to be obtained using Hind Patch R. High level spots to be properly grinded.
Prior to application of Hind Cempox (M) the concrete surface to be pre-wetted with water and should not be allowed to become dry. The surface should not have water accumulation and should be in Surface Saturated Dry (SSD) condition.
All type of Surfaces like Green Concrete (as soon as it is suitable for mechanical preparation), Concrete substrate more than 14 days old and Damp old aged concrete with rising moisture is suitable for priming.
Before mixing Component A (Resin) to be shaken properly and then poured into the container of Component B (Hardener) and shaken vigorously for minimum 30 seconds. To the mixed binder (A+B) now Component C (Filler) is added gradually and stirred with a slow speed power mixer (300- 400 RPM) for 3- 4 minutes to achieve a homogenous mix with any lumps. Mix pre-weighted Component (A+B+C) full quantity. Water should not be added.
The mixed Hind Cempox (M) is applied on the damp surface and is spread over with a trowel/spatula to obtain the required thickness. If necessary it can be finished with a moist neoprene made sponge or brush.
It can also be sprayed to the surface by using a spray gun or by wet spray techniques. After spraying operation is over it is to be subsequently finished by hand. Additional water is not to be used which may cause improper surface finish.
New & fresh applied surface with Hind Cempox (M) must be protected from rain for the first 24 hours from the time of application. When the surface of Hind Cempox (M) becomes tack free vapour permeable sealing coatings can be applied. The surface moisture to be checked which should be less than < 4% before application of vapour tight coatings. Seamless finish is achieved if a wet edge is maintained during application.
Component A & Component B -12 months, Component C – 6 months, from the date of manufacturing in unopened conditions. To be stored in a cool and dry place away from direct sunlight.
23Kg Kit. (Comp A – 4Kg, Comp B – 1 Kg & Comp. C-18Kg)
Hind Hind Cempox (M) is non-toxic and ingestion is to be avoided. If contact with skin, eyes occurs wash well immediately with water and seek medical advice.