Construction Chemicals
Our product range includes a wide range of microsilica (silica fume) (white), silica flour, zeolite powder, ground granulated blast furnace slag ( ggbs), calcium hydroxide lime powder and white bentonite powder.Microsilica (Silica Fume) (White)
Approx. Rs 21 / KilogramGet Latest Price
Product Details:| Minimum Order Quantity | 50 Kilogram |
| Packaging Size | 50 Kg/bag |
| Color | White |
| State | Powdered |
| Packaging Type | HDPE Bags |
| Density | 0.76 gm/cc |
| PH Value | 6.90 |
| Brand | Astrra Chemicals |
We are leading manufacturers and exporters of the best quality Microsilica ( Silica Fume Densified ). It is a construction chemical, which is also known as silica fume. Commonly it is used mineral admixture in high strength concrete. If it gets mixed with the concrete, it enhances the strength and workability. It is commonly used in the construction of bridges and nuclear plants.
Features:
- Longer shelf life
- Accurate composition
- Optimum binding strength
- Purity
- Accurate composition
- Longer shelf life
- Aggregate Concrete
- Concrete Admixture
- Cement admixture
- Ultra High Strength Concrete
Silica Flour
Approx. Rs 14.50 / KilogramGet Latest Price
Product Details:| Minimum Order Quantity | 50 Kilogram |
| Color | White |
| Grade | Mycosil - 200M |
| Packaging Size | 50 Kgs |
| State | Powdered |
| Boiling Point | 2.623 Deg C |
| Brand | Astrra Chemicals |
Backed by the vast experience of this domain, we are manufacturing, wholesaling and exporting superior quality Silica Flour. It is hydrophilic and used as a thickening agent for various lubricants and resin. In appearance, it is a white color powder and commonly used in the construction, paining and other industries.
Features:
- Longer shelf life
- Precise pH value
- Purity
Certificate of analysis:
SiO2 | 99. 5% |
Al2O3 | 0. 08% |
TiO2 | 0. 04% |
CaO | 0. 01% |
MgO | 0. 01% |
L.O.I. | 0. 28% |
Alkalies | 0. 29% |
Fe2O3 | 0. 04% |
MESH | 200 |
Additional Information:
Zeolite Powder
Approx. Rs 69 / KilogramGet Latest Price
Product Details:| Minimum Order Quantity | 100 Kilogram |
| Brand | Astrra Chemicals |
| Grade | Industrial |
| Packaging Type | HDPE Bag |
| Color | White |
| Form | Powder |
| Packaging Size | 25 kg/bag |
Zeolite Powder
Pertaining to the clients' requirements, we are engaged in manufacturing, supplying, wholesaling and exporting quality assured Zeolite Powder. This powder is processed using superior quality ingredients that are sourced from accredited vendors of the market. To rule out the possibility of any impurity, this powder is stringently checked on various aspects like composition and shelf life.
Features:
- Highly effective
- Purity
- Balanced pH
Additional Information:
Ground Granulated Blast Furnace Slag ( GGBS)
Approx. Rs 12.5 / KgGet Latest Price
Product Details:| Minimum Order Quantity | 100 Kg |
| Packaging Size | 50 kg/bag |
| Packaging Type | HDPE Bag |
| State | Powdered |
| Color | Grey |
| Brand | Astrra Chemicals |
| Moisture | 0.10 |
We are leading manufacturers, exporters & suppliers of Ground granulated blast-furnace slag ( GGBS ), GGBS is used to make durable concrete structures in combination with ordinary portland cement and/or other pozzolanic materials. GGBS has been widely used in Europe, and increasingly in the United States and in Asia (particularly in Japan and Singapore) for its superiority in concrete durability, extending the lifespan of buildings from fifty years to a hundred years.Two major uses of GGBS are in the production of quality-improved slag cement, namely Portland Blastfurnace cement (PBFC) and high-slag blast-furnace cement (HSBFC), with GGBS content ranging typically from 30 to 70%; and in the production of ready-mixed or site-batched durable concrete. Concrete made with GGBS cement sets more slowly than concrete made with ordinary Portland cement, depending on the amount of GGBS in the cementitious material, but also continues to gain strength over a longer period in production conditions. This results in lower heat of hydration and lower temperature rises, and makes avoiding cold joints easier, but may also affect construction schedules where quick setting is required. Use of GGBS significantly reduces the risk of damages caused by alkali–silica reaction (ASR), provides higher resistance to chloride ingress reducing the risk of reinforcement corrosion and provides higher resistance to attacks by sulfate and other chemicals.
Zeolite Powder
Approx. Rs 100 / KgGet Latest Price
Product Details:| Minimum Order Quantity | 50 Kg |
| Packaging Type | HDPE Bag |
| Brand | Astrra Chemicals |
| pH | 4.5 - 5.5. ( 10% Solids ) |
| Bulk density | 0.4 - 0.5 (Kg/Lit) |
| Specific surface area | 19.2 m2/g (bet ) |
| Specific gravity | 2.6 |
Leveraging on our years of experience, we have been committed to manufacture, supply, wholesale and export quality assured Zeolite Powder. Our offered chemical is processed using high quality ingredients that are sourced from authentic vendors of the market. This chemical is widely used in animal husbandry, agricultural and construction applications.
Features:
- Purity
- Accurate composition
- Longer shelf life
Certificate Of Analysis:
| SiO2 | 52 |
| Al2O3 | 46 |
| Fe2O3 ( Max.) | 0.6 |
| TiO2 ( Max .) | 0.65 |
| CaO ( Max .) | 0.09 |
| MgO ( Max .) | 0.03 |
| Na2O ( Max .) | 0.1 |
| K2O ( Max . ) | 0.03 |
| Loss on ignition | 1 |
Calcium Hydroxide Lime Powder
Approx. Rs 10.50 / KilogramGet Latest Price
Product Details:| Minimum Order Quantity | 50 Kilogram |
| Brand | Astrra Chemicals |
| Form | Powder |
| Lime as Ca | 90% (OH)2 |
| Active CaO | 68% |
| Acid insolubles | 1% |
| Magnesia as MgO | 0.6% |
We are the leading manufactures, exporters,technical developers and suppliers Hydrated Lime CLime Stone Powder ) in Chennai, Tamil Nadu,
White Bentonite Powder
Approx. Rs 18.5 / KgGet Latest Price
Product Details:| Minimum Order Quantity | 50 Kg |
| State | Powdered |
| Color | White |
| Brand | Astrra Chemicals |
| Brightnesss | 93.50% |
| Whiteness | 95.80% |
| Oil Absorption | 64.00 Ml/100gm |
| Water Absorpation | 66.80 Ml/100gm |
We are identified as one of a prominent manufacturer, supplier, wholesaler and exporter of superior grade Bentonite
Typical analysis:
| SiO2 | 52. 86% |
| CaO | 0. 28% |
| MgO | 0. 20% |
| Fe2O3 | 0. 45% |
| Al2O3 | 44.10% |
| Loss On Ignition | 0. 85% |
| Na2o | 0. 25% |
| K2o | 0. 20% |
| Tio2 | 0. 36% |
| Ret. On 500 Mesh | 0. 05% |
| Bd | 0.50 gm/cc |
Calcium Carbonate ( Oyster Shell )
Approx. Rs 29 / KilogramGet Latest Price
Product Details:| Minimum Order Quantity | 50 Kilogram |
| Color | White |
| Application | Construction Industry |
| State Of Matter | Powder |
| Brand | Astrra Chemicals |
| Tapped density | 0.8930 gm/l |
| Particle size | 98.00% through 300 mesh |
| Assay | 98.90% (on dried basis) |
We are engaged in manufacturing and exporting a Calcium Carbonate ( Oyster Shell ). The salient feature of our natural Powdered Calcium Carbonate is its high wet ability and weather resistance capacity. Our customer can avail these Oyster Shell Powders at affordable prices with us.
Features:
- Accurate formula
- Effective composition
- Longer shelf life
Certificate of analysis:
| Description | White Powder |
| Subs. Insoluble in acid | 0. 31% |
| Arsenic | Complies |
| Heavy Metals | Complies |
| Barium | Complies |
| Iron | Complies |
| Magnesium and Alkali metals | 0. 63% |
| Chloride | Complies |
| Sulphate | Complies |
| Loss on drying (at 200 Deg.C for 3 hours) | 0.2150% |
Micronised Barium Sulphate
Approx. Rs 48 / KgGet Latest Price
Product Details:| Minimum Order Quantity | 100 Kg |
| Packaging Size | 50 KGS |
| Grade | MICRONISED |
| Brand | Astrra Chemicals |
| Chemical Formula | BaSO4 |
| Density | 4.5 g/cm3 |
| Melting Point | 1,580 Deg C |
| Molar mass | 233.38 g/mol |
Micronised Barium Sulphate
We are the leading manufactures, exporters,technical developers and suppliers of Micronised Barium Sulphate in Chennai, Tamil Nadu.
Product Details:
BaSo4 | 95.00% Min |
SiO2 | 02.00% Max |
Brightness | 94.00% Min. |
Whiteness | 94.00% Min |
Additional Information:
Brown Aluminum Oxide
Approx. Rs 72 / KilogramGet Latest Price
Product Details:| Minimum Order Quantity | 50 Kilogram |
| Color | Brown |
| Brand | Astrra Chemicals |
| Form | Powder |
| Packaging Size | 25KG |
| Usage/Application | Industry |
| Tapped density | 0.8930 gm/l |
Known for manufacturing, supplying, wholesaling and exporting a wide range of optimum quality Industrial Chemical, Astrra Chemicals, based in Chennai, was established in the year 1992. Offered chemical range is inclusive of Construction Chemicals, Antioxidants Chemicals and Aromatic Chemicals. Available with us at cost-effective prices, these chemicals are extremely appreciated for their compositional accuracy and high effectiveness. In addition to this, our company is engaged in manufacturing, wholesaling and exporting best quality FRP Products - Raw Materials, De-ionized Water, Industrial Solvents Essential Oils Industrial Dyes and Industrial Pigments. Our offered products are extensively used in various industrial applications and are highly demanded by the customers.
With the aid of our team of highly dedicated professionals, we have been able to meet the bulk order requirements of production within the stipulated time frame. Our professionals, who hold expertise in their area of operations, are trained on a regular basis through seminars and workshops in order to enhance and polish their technical as well as professionals skills. Highly motivated to attain maximum customer satisfaction, our company strictly follows customer centric approach and transparent business policies, since its inception. We export our products all over the world.
Brown Aluminum Oxide Grit 60
Approx. Rs 76 / KilogramGet Latest Price
Product Details:| Minimum Order Quantity | 100 Kilogram |
| Usage/Application | Industry |
| Color | Black |
| Brand | Astrra Chemicals |
| Packaging Type | Poly Bag |
| Packaging Size | 25Kg |
| Form | Powder |
| Formula | Al2O3 |
We are an eminent organization, which is engaged in manufacturing, exporting and technical developers of highly pure Aluminium Oxide Brown ( Grit - 60 )
Brown Aluminum Oxide. Brown Aluminum Oxide (BFA) is produced by the fusion of high-quality bauxite in an electric arc furnace at high temperatures. It is a clean, high-strength material that resists oxidation and corrosion, maintains chemical stability, and withstands extraordinarily high temperatures.
High grade super fine qualityUniform compositionNon-toxic
Calcium Chloride
Approx. Rs 29 / KilogramGet Latest Price
Product Details:| Minimum Order Quantity | 50 Kilogram |
| Brand | Astrra Chemicals |
| Chemical Formula | CaCl2 |
| Form | Powder |
| Grade Standard | Industrial Grade |
| Purity | 90-95% |
| Packaging Size | 50 Kg/bag |
Investigations have shown that a two per cent addition of calcium chloride has equal cure strength at 50F as plain concrete has at 70F. Regardless of the temperature or cement type, concrete mixes containing calcium chloride will always have a faster cure rate than plain concrete. The beneficial effects of calcium chloride will be even more pronounced at lower temperatures. The accelerated cure rate measured as final concrete set time can be reduced by two-thirds when two per cent calcium chloride is added - two hours compared to six hours for plain concrete. Calcium chloride can accelerate cement hydration reducing its set time.
Features:
- Purity
- Accurate composition
- Longer shelf life
- Aggregate Concrete
- Concrete Admixture
- Cement admixture
FERRIC Oxide ( GRADE MIO )
Approx. Rs 38 / kgGet Latest Price
Product Details:| Minimum Order Quantity | 100 kg |
| Brand | ASTRRA |
| Grade | MIO |
| Chemical Formula | IRON OXIDE |
| Usage/Application | Paints / Construction |
| Specify Gravity | 04.90 - 05.30 |
| Hardness | 06.00 - 06.50 |
| Density | 04.00 - 04.50 (G/cm3) |
| Oil Absorption | 18 (Ml/100gm) |
We are the leading manufactures, exporters,technical developers and suppliers of FERRIC OXIDE in Chennai, Tamil Nadu.
Product Details:
| Ferric Oxide As Fe2o3 | >90.00% |
| Loi At 1000 Deg. C | < 03.00% |
| Chemical Name | Hematite |
| Chemical Formula | Fe2o3 |
| Color | Grey To Reddish Brown |
| Seive Analysis | Result (% Retained) |
| 150 Mesh Bss (100 Microns) | Traces |
| 240 Mesh Bss (63 Microns) | 05% - 15% |
Additional Information:
Iron Oxide Black
Approx. Rs 32 / KilogramGet Latest Price
Product Details:| Minimum Order Quantity | 50 Kilogram |
| Brand | Astrra Chemicals |
| Usage/Application | Industrial |
| Packaging Type | 25KG |
| Packaging Size | 25 kg/bag |
| Physical Form | Powder |
| Color | Black |
Product Details:
- Chemical formula: Fe3O4
- Melting point: 1,597 °C
- Boiling point: 2,623 °C
Liquid Sodium Silicate Neutral
Approx. Rs 36 / KgGet Latest Price
Product Details:| Minimum Order Quantity | 50 Kg |
| Form | Liquid |
| Packaging Size | 50 / 200 LITERS |
| Brand | Astrra Chemicals |
| Packaging Type | Can,Bottle |
| Chemical Formula | NazSiO3 |
| Specific Gravity | 40 +/- 1 Deg C |
Certificate Of Analysis:
| Technical Speciication | Neutral Grade | Alkaline Grade |
| Appearance | Hazy Colourless | Viscous Translucent |
| Total Alkalnity ( As Na2o) % By Mass, Min | 9. 00 +/- 1. 00 | 15. 00 +/- 1. 00 |
| Soluble Silicate As Sio2 | 29 | 33 |
| Toal Soluble Slicate % By Mass, Min | 38. 00 +/- 1 | 48 |
| Ratio Of Total Alkalinity ( As (Na2o ) To Total Soluble Silica (As Sio2: ( Na2o: Sio2 ) | 01:30.20 | 01:02.20 |
Magnesium Silicate (Grade A1)
Approx. Rs 13.5 / KgGet Latest Price
Product Details:| Minimum Order Quantity | 50 Kg |
| Usage/Application | INDUSTRIAL |
| State | Powdered |
| Packaging Size | 25 kg/bag |
| Packaging Type | HDPE Bag |
| Color | White |
| Brand | Astrra Chemicals |
We are an eminent organization, which is engaged in manufacturing, exporting and technical developers of highly pure Magnesium Silicate ( A1 )Used in high pH personal care compositions such as depilatory, waving and hair relaxer products. Fine off-white to tan-greenish powder, odorless, pH 9.5 (w/w 5%). Viscosity about 500cps (4% solution)
Certificate of analysis:
|
Typical analysis |
min. |
max. |
findings |
|
brightness |
90% |
95% |
94. 5% |
|
Sio2 |
58% |
60. 5% |
60% |
|
Mgo |
30% |
32% |
30. 5% |
|
Al2o3 |
1. 0% |
1. 2% |
1. 0% |
|
Cao |
0. 8% |
0. 9% |
0. 9% |
|
Loss on ignition @ 1050 deg. C |
5. 0% |
5. 3% |
5. 0% |
|
Specific gravity |
2. 5% |
2. 8% |
2. 7% |
|
Ph (of 10% solution) |
8. 0% |
9. 0% |
8. 5% |
|
Bulk density (loose in gm/cc) |
0. 80% |
1% |
0. 82% |
|
Moisture content |
0. 5% |
1% |
0. 6% |
|
Oil absorption (ml / 100gm ) |
30% |
34% |
32% |
|
Retention on 400 msh |
0. 30% |
0. 40% |
0. 31% |
|
Retention on 500 msh |
0. 95% |
1% |
0. 98% |
|
Mesh size |
- |
- |
700 mesh |
Magnesium Silicate Hydroxide Powder
Approx. Rs 38.00 / KilogramGet Latest Price
Product Details:| Minimum Order Quantity | 50 Kilogram |
| Brand | Astrra Chemicals |
| Functions | Biocides |
| Usage/Application | Industrial |
| Grade | Industrial Grade |
| Grade Standard | Technical Grade |
| Material | Plastic |
| Chemical Name | Magnesium Silicate |
| Packaging Type | HDPE Bag |
| Physical State | Powder |
| Packaging Size | 25-50 kg/bag |
With the firm commitment of delivering best quality construction chemicals, we are manufacturing, wholesaling and exporting best quality Magnesium Silicate Hydroxide Powder. Offered powder is processed by the professionals adhering to the set industry standards. We offer this magnesium silicate hydroxide powder is available with us in various packaging capacities.
Features:
- Purity
- Accurate composition
- Longer shelf life
- Aggregate Concrete
- Concrete Admixture
Certificate Of Analysis:
Typical Analysis | Min. | Max. | Findings |
Brightness | 90% | 95% | 94.5% |
SiO2 | 58% | 60.5% | 60% |
MgO | 30% | 32% | 30.5% |
Al2O3 | 1.0% | 1.2% | 1.0% |
CaO | 0.8% | 0.9% | 0.9% |
Loss of Ignition @ 1050 DEG.C | 5.0% | 5.3% | 5.0% |
Specific Gravity | 2.5% | 2.8% | 2.7% |
pH ( of 10% solution) | 8.0% | 9.0% | 8.5% |
Bulk Density ( Loose in GM/CC) | 0.80% | 1% | 0.82% |
Moisture Content | 0.5% | 1% | 0.6% |
Oil Absorption (ml / 100 gm ) | 30% | 34% | 32% |
Retention on 400 MSH | 0.30% | 0.40% | 0.31% |
Retention on 500 MSH | 0.95% | 1% | 0.98% |
Mesh Size | - | - | 700 Mesh |
Additional Information:
Metakaolin Powder
Approx. Rs 55 / KgGet Latest Price
Product Details:| Minimum Order Quantity | 50 Kg |
| State | Powdered |
| Color | White |
| Grade | CONCRETE |
| Packaging Type | HDPE Bag |
| Packaging Size | 25 kg/bag |
| Usage/Application | CONSTRUCTION / CONCRETE APPLICATION |
| Form | Powder |
| Brand | Astrra Chemicals |
Metakaolin Powder
We are the leading manufactures, exporters,technical developers and suppliers of Metakaolin Powder in Chennai, Tamil Nadu
With the help and support of our professionals, we have been able to manufacture, wholesale and export best quality Metakaolin Powder . It is calcinated by the professionals, under the controlled conditions for creating an amorphous aluminosilicate. When mixed with the concrete, it enhances the workability and strength of concrete. It also provides concrete a non sticky texture that makes finishing easier.
Feature:
- Purity
- Longer shelf life
- Correctly formulated
- Accurate composition
- Longer shelf life
- Aggregate Concrete
- Concrete Admixture
- Cement admixture
- High performance, high strength, and lightweight concrete
- Precast and poured-mold concrete
- Fibercement and ferrocement products
- Glass fiber reinforced concrete
- Countertops, art sculptures
- Mortar and stucco
PVA Resins
Approx. Rs 125 / KilogramGet Latest Price
Product Details:| Minimum Order Quantity | 10 Kilogram |
| Packaging Type | Polybag |
| Color | White |
| Form | Powder |
| Grade | GH-17R |
| Viscosity | 27.0-33.0 |
| Packaging Size | 25KG |
| Saponification | 86.5-89.0 |
We are the leading manufactures, exporters,technical developers and suppliers of PVA RESIN LIQUID in Chennai, Tamil Nadu.
Additional Information:
Perlite Powder
Approx. Rs 64 / KilogramGet Latest Price
Product Details:| Minimum Order Quantity | 50 Kilogram |
| State | Powdered |
| Packaging Type | HDPE BAGS |
| Packaging Size | 10 KGS |
| Brand | Astrra Chemicals |
| Grade | SF II POWDER |
| Shelf Life | 2 YEARS |
| Usage/Application | Industrial |
| PH Value | 2-6 |
| Color | White |
| Form | GRANULAR |
Perlite has a very outstanding insulating characteristics and light weight, it is widely used as a loose-fill insulation in masonry construction. In this application, free-flowing perlite loose-fill masonry insulation is poureMasonry Tools Perlited into the cavities of concrete block where it completely fills all cores, crevices, mortar areas and ear holes. In addition to providing thermal insulation, perlite enhances fire ratings, reduces noise transmission and it is rot, vermin and termite resistant. Perlite is also ideal for insulating low temperature and cryogenic vessels. When perlite is used as an aggregate in concrete, a lightweight, fire resistant, insulating concrete is produced that is ideal for roof decks and other applications. Perlite can also be used as an aggregate in Portland cement and gypsum plasters for exterior applications and. for the fire protection of beams and columns. Other construction applications include under-floor insulation, chimney linings, paint texturing, gypsum boards, ceiling tiles and roof insulation boards.
Additional Information:
Pumice Powder
Approx. Rs 38 / KilogramGet Latest Price
Product Details:| Minimum Order Quantity | 100 Kilogram |
| Brand | Astrra Chemicals |
| Form | Powder |
| Melting point | 2,072 Deg C |
| Density | 3.95 g/cm3 |
| Moisture | 0.98% |
| Silicon Di Oxide | 63.87% |
| Aluminium Tri Oxide | 11.47% |
| Calcium Oxide | 2.37% |
| Magnesium Oxide | 1.00% |
| Sodium Oxide | 6.81 |
We are one of the leading manufacturers, suppliers and exporters of high quality Pumice Powder.
Red Iron Oxide
Approx. Rs 28 / KilogramGet Latest Price
Product Details:| Minimum Order Quantity | 50 Kilogram |
| Packaging Type | HDPE Bag |
| Usage/Application | Industrial |
| Packaging Size | 25KG |
| Brand | Astrra Chemicals |
| Color | Red |
| Molar Mass | 159.69 g/mol |
Known for manufacturing, supplying, wholesaling and exporting a wide range of optimum quality Industrial Chemical, Astrra Chemicals, based in Chennai, was established in the year 1992. Offered chemical range is inclusive of Construction Chemicals, Antioxidants Chemicals and Aromatic Chemicals. Available with us at cost-effective prices, these chemicals are extremely appreciated for their compositional accuracy and high effectiveness. In addition to this, our company is engaged in manufacturing, wholesaling and exporting best quality FRP Products - Raw Materials, De-ionized Water, Industrial Solvents Essential Oils Industrial Dyes and Industrial Pigments. Our offered products are extensively used in various industrial applications and are highly demanded by the customers.
With the aid of our team of highly dedicated professionals, we have been able to meet the bulk order requirements of production within the stipulated time frame. Our professionals, who hold expertise in their area of operations, are trained on a regular basis through seminars and workshops in order to enhance and polish their technical as well as professionals skills. Highly motivated to attain maximum customer satisfaction, our company strictly follows customer centric approach and transparent business policies, since its inception. We export our products all over the world.
Rice Husk Ash
Approx. Rs 21.00 / KgGet Latest Price
Product Details:| Minimum Order Quantity | 20 Kg |
| Brand | Astrra Chemicals |
| Grade Standard | Technical Grade |
| Physical State | Powder |
| Packaging Size | 25 Kg/bag |
| Usage | Industrial |
| Packaging Type | HDPE Bag |
RHA is a good super-pozzolans. RHA can be used in a big way to make special concrete mixes There is a growing demand for fine amorphous silica in the production of special cement and concrete mixes ,high performance concrete ,high strength, low permeability concrete, for use in bridges, marine environments , nuclear power plants etc.
Use Of Rice Husk Ash:
- Adding RHA to the concrete mix even in low replacement will dramatically enhance the workability , strength and impermeability of concrete mixes, while making the concrete durable to chemical attacks , abrasion and reinforcement corrosion, increasing the compressive strength by 10% - 20 %
For water proofing:
- RHA has excellent water resistance ( impermeability ) properties and is used in waterproofing compounds to give amazing results.
- It reduces the water penetration by as much as 60 % .
For Better Concrete in Marine environment:
- Adding RHA to concrete and paints helps to reduce the chloride ion penetration by as much as 50 % into the structure, thus improving life of the building.
For Lower heat of Hydration:
- Adding RHA to concrete lowers the heat of hydration by as much as 30 % and prevents formation of cracks during casting
- RHA acts as a very good insulator
- RHA is also used for insulation of molten metal in tundish and ladle in slab caster .
- The temperature of molten metal in the ladle is around 1400 degrees centigrade and above
- When this metal flows from ladle to tundish , the temperature drops to around 1250 degrees
- This reduction in temperature leads to choking and causes breakdown in the slab caster.
- When this RHA is spread as a coating over the molten metal in the tundish and in ladle, it acts as a very good insulator and the temperature is maintained and does not cool down quickly, hence reducing the breakdown time of the casting.
- Rice Husk is burnt in controlled temperatures which is below 700 degrees centigrade
- This ash generated is amorphous in nature. The transformation of this amorphous state to crystalline state takes place if the ash is exposed to high temperatures of above 850 degrees centigrade
Green Concrete:
- Green Concrete as the name suggests is eco friendly and saves the environment by using waste products generated by industries in various forms like rice husk ash, micro silicaetc. to make resource-saving concrete structures
- Use of green concrete helps in saving energy,emissions, waste water Green concrete is very often also cheap to produce as it uses waste products directly as a partial substitute for cement,thus saving energy consumption in production of per unit of cement
- Over and above all green concrete has greater strength and durability than the normal concrete.
- High Performance Concrete: Also known as HPC, the name given to mixtures with high workability and very high early strengthsand long term durability
Sepiolite Powder
Approx. Rs 16.50 / KilogramGet Latest Price
Product Details:| Minimum Order Quantity | 50 Kilogram |
| Color | White |
| Brand | Astrra Chemicals |
| Packaging Size | 25 kg/bag |
| Form | Powder |
| Magnesia as MgO | 0.6% |
| Packaging Type | HDPE Bag |
We are engaged in manufacturing, supplying, wholesaling and exporting quality assured Sepiolite. It is extensively used for various applications. We are the leading sepiolite suppliers in the country. It is also uder for cat litter.
Silica Grits Pure
Approx. Rs 18.50 / KgGet Latest Price
Product Details:| Minimum Order Quantity | 50 Kg |
| Grade | 36 GRIT |
| State | Crystal |
| Packaging Type | HDPE BAGS |
| Usage/Application | INDUSTRIAL APPLICATION |
| Brand | Astrra Chemicals |
| Color | White |
| Form | Powder |
| Packaging Size | 25 kg/bag |
Mycosil Grit - 36 ( FRP Filler ) ( PURE SILICA GRIT ) We have emerged as a prominent manufacturer, supplier, wholesaler and exporter of high quality MYCOSIL GRIT – 36 (PURE SILICA GRIT ) highly suitable for FRP FIBREGLASS FILLER APPLICATION. Based in Chennai - Tamil Nadu - India. In the FRP / Composite Industry it is used as a :- 1) Filler 2) Extended Applicator
Product Details:
|
SiO2 |
99. 5% |
|
Al2O3 |
0. 08% |
|
TiO2 |
0. 04% |
|
CaO |
0. 01% |
|
MgO |
0. 01% |
|
L.O.I. |
0. 28% |
|
Alkalies |
0. 29% |
|
Fe2O3 |
0. 04% |
Additional Information:
Super Plasticizer ( Waterproofing Chemical )
Approx. Rs 185 / KilogramGet Latest Price
Product Details:| Minimum Order Quantity | 5 Kilogram |
| Brand | Astrra Chemicals |
| Form Of Chemicals | Liquid |
| Usage/Application | Laboratory |
| Packaging Size | 100-1000 ml |
| Category | Waterproofing Coating |
| Packaging Type | Bottle |
To produce high strength, high grade concrete by substantial reduction in water resulting in low permeability and high early strength. To produce high workability concrete requiring little or no vibration during placing.
Advantages:
- Improved workability - Easier, quicker placing and compaction.
- Increased strength - Provides high early strength for precast concrete with the advantage of higher water reduction ability.
- Improved quality - Denser, close textured concrete with reduced porosity and hence more durable.
- Higher cohesion - Risk of segregation and bleeding minimised; thus aids pumping of concrete
- Chloride free - Safe in prestressed concrete and with sulphate resisting cements and marine aggregates.
Vermiculite Powder ( Construction Grade )
Approx. Rs 28 / KgGet Latest Price
Product Details:| Minimum Order Quantity | 25 Kg |
| State | Powdered |
| Grade | Construction Grade |
| Packaging Type | HDPE Bags |
| Usage/Application | Construction |
| Color | Golden,Brown |
| Size Grading | 0.5 to 1.5 mm |
| Type | Powder |
| Brand | Astrra Chemicals |
| Packaging Size | 25-50 kg/bag |
Owing to our vast experience and knowledge of this domain, we have been able to manufacture, wholesale and export best quality Vermiculite Grade. This exfoliated vermiculite is commonly used in the agricultural, construction and horticultural sectors. It is processed by the experienced professionals adhering to the set industry standards.
Features:
- Accurate composition
- Long shelf life
- Provides strength to concrete
Additional Information:
White Silica ( Porous Silica Pure )
Approx. Rs 58 / KgGet Latest Price
Product Details:| Minimum Order Quantity | 100 Kg |
| Color | White |
| Grade | AMK |
| Usage/Application | Industrial |
| Material | Silica |
| Brand | Astrra Chemicals |
| Density | 3.95 g/cm3 |
We are one of the leading manufacturers, suppliers and exporters of high quality White Silica.
Additional Information:
Yellow Iron Oxide ( Natural )
Approx. Rs 28.00 / KgGet Latest Price
Product Details:| Minimum Order Quantity | 100 Kg |
| Color | Yellow Ochre |
| Packaging Size | 50 kg |
| Packaging Type | 50 Kgs Hdpe Bags |
| Form | Powder |
| Brand | Astrra |
| Usage/Application | Construction, Painting etc |
| Application | Artists tend to prefer the more yellow oxide to the slightly browner natural ochre. ... Yellow Oxide |
Yellow Iron Oxide ( Natural )
We are the leading manufactures, exporters,technical developers and suppliers Yellow Iron Oxide (Natural) in Chennai, Tamil Nadu.
Iron oxide yellow is widely used in painting, scagliola and concrete due to its bright and pure color, good weather proof and high opacity, also can be used as colorant for ink, rubber, paper and so on.
Artists tend to prefer the more yellow oxide to the slightly browner natural ochre. ... Yellow Oxide is used for a wider range of colors in landscape painting
Additional Information:
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Sanklesh Fatechand Chabria (Managing Partner)
Chennai - 600006, Tamil Nadu, India
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