Concreting Aid

USES

 Hind Cure WP is sprayed or brushed into newly laid concrete surfaces to form a thin film barrier against premature water loss, without hindrance to the normal curing phenomenon due to adequate hydration, water held by the concrete matrix and for very slow evaporation of water from below the membrane so that concrete achieves maximum beneficial properties.

ADVANTAGES

 Hind Cure WP is very useful in large areas of exposed concrete such as

• Concrete Highways-Road construction.
• Air Port
• Apron and hard standing.
• Roof decks and shell-roofs.
• Retaining walls.
• Pre stressed beams and peers.
• Canal lining.
• Exposed surfaces of dams.
• Sloping and angular surface where pond curing is not possible.

APPLICATION

 Hind Cure WP curing membrane is recommended for application to the newly laid concrete once the surface water has disappeared. For large areas of concrete such as concrete Highway. Power driven automatic spray equipment attached to paver machine is employed. The contents are to be stirred well before application as in Paints application.

PROPERTIES

Aspect	White Liquid
Specific Gravity	0.9 ± 0.05 at 27° C
Water Loss (ASTM C 309:06)	0.55 Kg/ m2  (Max.)
Drying Time (ASTM C 309:06)	< 90 mins.
Reflectance (ASTM C 309:06)	Not less than 60 %
Curing Efficiency	90%
VOC (Volatile Organic Content)	216.8 gm/Lit
Coverage*	5 to 6 Sq. Metre/Litre.

* Coverage depends on site condition such as wind velocity, temperature, humidity and porosity of the surface.

 Hind Cure WP compiles with ASTM C-309-06, ASTM C 156, ASTM E 97 and BS: 7542 specification in respect of rate of evaporation loss. The weight of water lost per square meter of coated concrete surface in 24 hours is 0.40 kg. against 0.55 kg. (Maximum) stipulated in Ministry of Surface Transport (Most) Govt. of India’s specification.

SHELF LIFE

12 months from the date of manufacture. Container should be protected from direct sunlight.

 PACKING

100, 200 Litre HDPE container or as required.

 HANDLING PRECAUTION

Hind Cure WP is non-toxic but ingestion is to avoided. Any splashes to the skin must be washed with water. If contact with eyes occurs, wash well immediately with water and seek medical advice.

USES

Hind Bond EBA is used as a bonding agent between old to old concrete, old to new concrete, metal to concrete, glazed bricks, tiles, steel or other structural materials to old sound concrete. It is also used for joint sealing.

ADVANTAGES

Hind Bond EBA   provides a bond of far better strength of concrete itself, and suitable wherever structural bonding of new to existing old concrete is required.

APPLICATION

Surface should be cleaned, dry and free from loose particles, oil, grease or other foreign materials. Deep contaminated concrete should be thoroughly cleaned by wire brush. Mix all the pre-weighed  Pack-A with the pre-weighed Pack-B  and stir thoroughly preferably with a low speed electric drill or paddle mixer for 2-3 minutes.. Apply a thin layer of Hind Bond EBA with brush to the existing surface, working well into the substrate. Place fresh concrete/mortar while it is still ‘tacky’.

In case of using large packs, when the entire mixed quantity cannot be used at a time, contents of Pack A and Pack B is to be mixed in the ratio 2:1 by weight and consumed within 30 minutes.

Conditions of Application/Limitations

Temperature of the Substrate:           25⁰ C (Minimum) / 40⁰ C (Maximum)

Ambient Temperature:                        25⁰ C (Minimum) / 40⁰ C (Maximum)

Humidity of the Substrate:                 On moist surface, the adhesive to be brushed well into the substrate.

Temperature of the material:               The material temperature at the time of application should be between 10⁰ C to 40⁰ C.

PROPERTIES

Aspect (Mixed)	Greyish white colored fluid
Mixing Ratio	Component A: Component B = 2: 1 by weight
Pot Life	25-30 minutes at 300C (as per EN  ISO 9514)Pot life starts when Pack A & Pack B are mixed. Pot life is reduced at high temperature and longer at low temperature. To get a longer pot life small portion by weight to be mixed and applied.
Open Time	45-50 minutes at 300C (as per EN ISO 9514)
Full Curing time at Ambient Temperature	7 days
Compressive Strength (300 C)	60 N/mm2 in 7 days (as per ASTM C 881)
Flexural Strength (300 C)	30-35 N/mm2 in 10 days (as per IS-9162 -79)
Tensile Strength (300 C)	20 N/mm2 in 14 days (as per ISO 527)
Bond Strength (300 C)	2-3 N/mm2(Substrate–Concrete dry) (as per ASTM C 881)

COVERAGE

Hind Bond EBA will cover at the rate of 0.25-0.50 Kg. per Sq. Mtr. depending upon the surface porosity, texture and working temperature.

SHELF LIFE

18 months from the date of manufacture in unopened condition. Should be stored in a cool and dry place away from direct sunlight.

PACKING

1.2 Kg, 3 Kg, 6 Kg. & 18 Kg Kits. All packs contain pre-measured quantity components of Pack A & Pack B.

HANDLING PRECAUTION

Hind Bond EBA is non-toxic and ingestion is to be avoided. Any splashes to the skin must be washed with organic solvent like Xylene. If contact with eyes occurs, wash well immediately with water and seek medical advice. Rubber hand gloves are to be worn while handling.

While mixing and applying Hind Bond EBA, tools and skin contacts are to be cleaned by organic solvent like Xylene/Toluene/MEK.

 USES

 Hind Silica M is used in production of high grade, high strength concrete. Its use makes concrete impervious and enhances durability. It is used for construction of basements, railway platforms, marine structures, kerbs, highway dividers, pavements, Bridges, Dams, Tunnels, Water-retaining walls, PSC girders, bridge decks and concrete structures with long spans. mass concrete work keeping the cement content less. To improve the workability and flow of concrete admixed with Hind Silca M, a suitable superplasticiser or an air-entraining agent like ‘Hind Plast Super SCA/Hind Plast AEA’ may be used in conjunction.

ADVANTAGES

• 1. Improves flexural and bond strength.
• 2. Highly enhances durability.
• 3. Solid resistance to chemical attacks.
• 4. Creates dense, compact impermeable concrete.
• 5. Resists freeze/thaw effect.

 APPLICATION

The application procedure and dosage are entirely dependent on the site requirements. The best possible dosage is possible to be ascertained on the basis of site trials. As a guideline 3% to 5% by weight of cement is used in concrete without any cement replacement. For high grade concrete 10% to 15% may be used as replacement of cement to enhance durability and achieve high strength. However, trials should be conducted to fix the exact dose.

 PROPERTIES

Aspect	Grey fine Powder
SiO2 Content (%)                                             (IS:1727- 1967)	> 85
Moisture (%)                                                   (IS:15388-2003)	< 3
Loss on Ignition (LOI %)                               (ASTM C 1240)	<6
Bulk Density (Kg/m3 ) densified	>550
Alkalis as equivalent to Na2 O (%)                  (IS:4032 – 1985)	<1.5
Specific Surface (BET – M2 /gram)	>15
Fineness Retained on 45 micron sieve (%)     ( IS:1727- 1967)	<10
Variation from average retained on 45 micron sieve (%)	<5
Specific Gravity	2.20 + 0.05

 SHELF LIFE

18 month in factory packed condition. Store in a dry and cool covered place away from direct sunlight.

PACKING

20 Kg. in HDPE Bag.

HANDLING PRECAUTION

Hind Silica M is non-toxic and ingestion is to be avoided.  If contact with skins or eyes occurs, immediately wash with water and seek medical advice.

USES

Hind SBR Bond has wide range of uses, for bonding of old concrete with new concrete, such as interior surfaces, floors , roadways, bridge decks, ramps , runway, walkways and curbs. It is also used for repairing of spalled concrete, damaged floors/slabs and when added to cement mortar provides a water proof plaster surface.

ADVANTAGES

• 1. Improves bond to mother substrates.
• 2. Excellent adhesion to a wide range of substrates.
• 3. Improves flexibility of the treated area.
• 4. Improves mechanical properties and abrasion resistance.
• 5. Improves chemical resistance to substrates.
• 6. Low permeability makes mortars/concrete waterproof.
• 7. Improves workability and adhesion of mortars.
• 8. Strength remains unaffected.
• 9. Prevents finished surfaces from cracking.
• 10. Outstanding resistance to water and moisture.

APPLICATION

Surface preparation: The substrate must be structurally sound, clear and dust free, oil, grease and contaminants must be removed mechanically. Smooth surface must be scrubbed. Surface should be damped with water prior to application of the bonding primer, modified mortar or concrete. All excess water should be removed from the surface.

PROPERTIES

Aspect	Milky white
pH	7-9
Sp. Gravity	1.02 ±  0.01
Base	SBR (Styrene butadiene rubber)
Form	Liquid.

APPLICATION & RECOMMENDED CONSUMPTION

Ingredients	Bonding Coat /Waterproof coating	Polymer Mortar forPlastering
Cement	3 to 3.5 parts by weight	10 parts by weight
Zone II Sand	Nil	40 parts by weight
10 mm nominal sizeCoarse Aggregates	Nil	Nil
Water	1 part by weight	4 parts by weight
Hind SBR Bond	1 part by weight	1 part by weight
Hind SBR Bond :Water : Cement	1:1 : 3	1:04:10
Coverage	0.250 to 0.50 Kg/Sqm/coat	0.45 to 0.50 Kg/Sq.m/10 mm thickness

SHELF LIFE

12 months from the date of manufacturing in unopened conditions. To be stored in a cool and dry place away from direct sunlight.

PACKING

1 Kg. 5 Kg. and 20 Kg. Plastic Containers

HANDLING PRECAUTION

Hind SBR Bond is non-toxic, non-flammable and ingestion is to be avoided. Any splashes to the skin must be washed with water. If contact with eyes occurs, wash well immediately with water and seek medical advice.