FAQ
 
Answers about Flyash Brick Machines
 

1.What is Flyash?

Fly ash is generated by thermal power stations in big quantity. it mean coal ash. Fly ash, is the ash removed from the exhaust gas of burning coal at power plants to generate electricity. The ash is removed from the exhaust by air pollution control equipment such as electrostatic precipitators before the exhaust is emitted through stacks or chimneys into the atmosphere. Thus, fly ash is a by product of burning coal for heating or generation of electricity.

Fly ash supplied by thermal power stations at free of cost the entrepreneur has to bare only transportations charges from thermal power stations to the fly ash bricks manufacturing unit.

Other sources of fly ash We can collect fly ash from Steel plants and Paper plants.

2. What are the Raw Materials?

Raw Materials for making Fly ash Bricks would be (I) Fly-Ash, Sand or crusher dust, gypsum, lime, Water, (II) Fly ash, crusher dust, lime gypsum, Cement (If-Needed).

3. Is the Fly ash Available continuously throughout the year?

Yes, Fly ash is continuously available from Thermal power plants, steel plants in whatever quantities required.

4. What about Density?

Densities range Quality Standards : IS : 12894 :2002 or1990.

5.What about Compressive Strength?

Fly Ash Brick Size Details :
Size [6 Inches ] :- 230 x 150 x 80 mm
230 x 150 x 100 mm
[4 Inches ] :- 230 x 100 x 75 mm
230 x 100 x 100 mm
Compressive Strength : Avg. 7.5 N / Sq.mm.
( As against 3.5 N/Sq. mm for handmade clay bricks )
Water Absorption : 8 - 12 %
( As against 20 to 25% for clay bricks )
Fly Ash Bricks Efflorescence : Nil
Fly Ash Bricks Density : 1700 Kg / m3
Fly Ash Bricks Weight :
230x150x80 mm ( Weight about 5.0 to 5.20 kgs. ) 230x100x75 mm ( Weight about 3.40 to 3.50 kgs. )
230x150x100 mm ( Weight about 7.20 to 7.50 kgs. ) 230x100x100 mm ( Weight about 4.50 to 4.60 kgs. )
Fly Ash Bricks Composition :- 230x100x100 mm ( Weight about 4.50 to 4.60 kgs. )
(i) Cement : Birla Super Cement OPC 53 Grade
(iii) Crushed Sand / Stone Dust.
(ii) Thermal Station Fly Ash
Fly Ash Bricks Thermal Conductivity :
0.90 – 1.05 W/m2 0 C

6. What about Curing?

Curing of the Bricks can be done by either Water Curing for 10 to 15 days or by Steam Curing for 8 Hours.

7. Steam Curing Plant

These Plants are generally suitable for Higher Production Capacities and the advantages with this system will be Faster Curing, Less Labour, Less Production Cost, Mass / Maximum Production

8. Water Curing Plant

These Plants are generally suitable for Less Production Capacities and are best suitable for Start-Up Companies, Brick / Tiles Manufacturers, Small Builders, Entrepreneurs as the investment is very less.

9. How is Fly ash different from Clay Bricks?

PARTICULARS CONVENTIONAL RED BRICKS FLYASH BRICKS
Strength 40 – 65 Kg/cm2 70 – 120 Kg/cm2
Shape & Size Non Uniform & Irregular Uniform & Regular
Water Absorption 20 – 25 % 10 – 15 %
Breakage / Wastage 8 – 10 % 3 – 4 %
Mortar Consumption High Less
Density 1500 – 1700 Kg/cm3 1200 – 1350 Kg/cm3
Mortar Joint Thickness 15 – 18 mm 8 – 10 mm
Plaster Thickness 15 – 20 mm 10 – 12 mm

10. What is the Plant Capacity & How much will be the Investment?

Fly ash Manufacturing Plants can be started with a minimum production of 5000 bricks per day and the investment range starts from Rs 8 Laks. Kindly contact www.indianbrickmachines.com.

11. What is the Production Cost?

Production Cost in Tamilnadu is generally between Rs. 2.5 per bricks and other area depends upon the Prices of Raw Materials.

12. What is the Market Price?

Market Price throughout India is in between Rs. 4 to 6 per brick.

13. Sizes & Number of Bricks?

Sizes (in Inches)

  • 9x4x3
  • 10x5x4
  • 9x6x4
  • 9x8x4

14. Direct Advantages of Flyash?

Fly ash bricks have the following advantages:
  • Cost less to produce – at least 10% less than concrete bricks and 20% less than clay bricks. Details on cost will be addressed later in this document.
  • Save construction cost – Due to the uniform shape and size of the fly ash brick, it saves labour in laying bricks by about 15%. This translates into an estimated 7 cents reduction in labour cost in laying each brick.
  • Use less energy – Much energy is consumed in firing clay bricks in kilns. By using fly ash bricks instead of clay bricks, much energy is saved in brick manufacturing. Details on energy saving will be addressed later in this document.
  • Reduce air pollution – Much fossil fuel is used in heating clay bricks in kilns. Burning such fuel generates air pollution and greenhouse gas (CO2), contributing to global warming. By manufacturing fly ash bricks (at room temperature) instead of clay bricks.

    (at over 2,000oF), emission of air pollutants and greenhouse gas is avoided at brick plants, which helps to reduce air pollution and global warming. More on the environmental benefits will be addressed later in this document. Based on the above benefits, the fly ash brick is not only a low-cost, high-quality brick.

15. Applications of Fly ash bricks- project report

Refer Annexure I (www.indianbrickmachines.com).

16. Future of Fly ash

Government is making all efforts to Ban / Stop Clay Bricks Manufacturing & Usage as it consumes Top Agricultural Soil and also the availability of soil is a problem. In a due course of time, an appropriate action will be taken. Only one option fly ash bricks, reasonable price, any where availability, 100% more quality.

17. Who are the best suitable manufacturers?

Fly ash bricks are best suitable for Brick, Tiles (Parking & Designer), Marble Manufacturers & Dealers, Builders, Entrepreneurs & any other Building Material Manufacturers.

18. Suitable Places of Production & Marketing

Plants can be set up in all corners of India as flyash Bricks are widely accepted and Raw Materials are easily available.

19. Plant Size Feasible

Plant Size or Production Capacity generally depends upon the Market Location. It’s always better to start with Small or Medium Plant and later expand to a large scale.

20. Land, Power & Labour Requirement

Land, Power & Labour requirement depends upon the Plant Size / Production Capacity. The Minimum requirement of Land - .05 to 1 acres, Power – 40HP & Labour – 12 (Un-Skilled) & 1 (Skilled).

21. Usage of flybricks in different countries

Yes, flyash Technology is widely accepted in all countries.

22. Approvals from any organizations

Fly ash bricks Technology is approved by Indian Standards only. Certificate mean as per buyer requirement for load testing and water consumption.

23. Our Future Products

IBM is soon going to enter Low Cost Housing & Pre-Fabricated Houses.

 
Answers about CLC
 

24. What is CLC?

CLC is called as Cellular Light Weight Concrete and it is also called as Foam Concrete. Cellular Light Weight Concrete (CLC) is a version of lightweight concrete that is produced like normal concrete under ambient conditions. It is produced by initially making slurry of Cement, Sand (optional), Fly-Ash & Water, which is further mixed with the addition of pre-formed stable foam. The Concrete is pumped into assembled moulds of blocks. The foam imparts free flowing characteristics to this slurry due to ball bearing effect of foam bubbles enabling it to easily flow into all corners and compact by itself in the moulds/forms without requiring any kind of vibration or compaction. Good Curing gives strength and dimensional stability to Bricks. Bricks are cured either by Water Curing or Steam Curing procedure.

25. What are the Raw Materials?

Raw Materials for making CLC Bricks / Blocks would be Cement, Fly-Ash / Sand, Foam, Water & Lime (If-Needed).

26. Is the Foaming Agent Available continuously and where should we get from?

Foaming Agent is continuously available from Indian brick machines in whatever quantities required.

27. What about Density?

Densities range of CLC would be between 400 – 1800 kg/m3 which are used for various applications.

28. What about Compressive Strength?

Density Grade Compressive Min Strength (n/mm2) Max Water Absorption (%)
800 G-2.5 2 2.5 12.5
1000 G-3.5 2.8 3.5 12.5
1200 G-6.5 5.2 6.5 10
1400 G-12 9 12 10
1600 G-17.5 14.5 17.5 7.5
1800 G-25 22 25 7.5

29. What about Curing?

Curing of the Bricks / Blocks can be done by either Water Curing for 2 to 3 weeks or by Steam Curing for 8 Hours.

30. Steam Curing Plant?

These Plants are generally suitable for Higher Production Capacities and the advantages with this system will be Faster Curing, Less Labour, Less Production Cost, Mass / Maximum Production.

31. Water Curing Plant?

These Plants are generally suitable for Less Production Capacities and are best suitable for Start-Up Companies, Brick / Tiles Manufacturers, Small Builders, Entrepreneurs as the investment is very less.

32. How is CLC different from Clay Brick, Fal-G (Fly-Ash Brick) & AAC Blocks?

33. What is the Plant Capacity & How much will be the Investment?

CLC Brick / Block Manufacturing Plants can be started with a minimum production of 10m3 to 500m3 per day and the investment range starts from Rs 2-5 Lakhs.

34. What is the Production Cost?

Production Cost in India is generally between Rs. 1500 – 2200 per m3 and this depends upon the Prices of Raw Materials.

35. What is the Market Price?

Market Price throughout India is in between Rs. 3000 – 4000 per m3.

36. What is the Break-Even Period?

Break-Even / ROI can be achieved as less as 3-4 Months at 100% Efficiency.

37. Sizes & Number of Bricks per m3 with Weights?

Size (in inches) Size (in mm) No of Bricks / m3 Weight (Kg’s)
24 * 8 * 4 600 * 200 * 10083 9.5 – 10
24 * 8 * 6 600 * 200 * 15055 14.5 – 15
24 * 8 * 8 600 * 200 * 20041 19-19.5
24 * 8 * 9 600 * 200 * 22536 22-22.5

38. Direct Advantages of CLC?

Direct Cost Savings using CLC Light Weight Blocks would be Reduction of Steel / Iron for Structural Foundation, Savings in Plastering & Mortar & Labour Cost.

39. In-Direct Advantages of CLC?

In-Direct Advantages of CLC are in the form of Thermal Insulation, Sound Reduction, Less Water Absorption, etc...

40. Applications of CLC?

41. Future of CLC?

Government is making all efforts to Ban / Stop Clay Bricks Manufacturing & Usage as it consumes Top Agricultural Soil and also the availability of soil is a problem. In a due course of time, an appropriate action will be taken.

Fal-G (Fly-Ash) bricks are much heavy in weight and require heavy structural foundation and because of the heavy weight, labour problems are existent. Because of the heavy competition, Fly Ash Bricks are available at rock bottom price and it would be difficult for them to reduce price any more.

AAC Blocks Plant Investment is very high and has to be imported either from Germany or China and this technology has a problem with Water Absorption.

Several Brick Manufacturers who are already into Clay Bricks & Fly-Ash Bricks are converting into CLC Technology.

42. Who are the best suitable manufacturers?

CLC Plants are best suitable for Brick, Tiles (Parking & Designer), Marble Manufacturers & Dealers, Builders, Entrepreneurs & any other Building Material Manufacturers.

43. Suitable Places of Production & Marketing?

Plants can be set up in all corners of India as CLC Bricks are widely accepted and Raw Materials are easily available.

44. Plant Size Feasible?

Plant Size or Production Capacity generally depends upon the Market Location. It’s always better to start with Small or Medium Plant and later expand to a large scale.

45. Land, Power & Labour Requirement?

Land, Power & Labour requirement depends upon the Plant Size / Production Capacity. The Minimum requirement of Land - 1000 Sq. Yards, Power – 8HP & Labour – 6 (Un-Skilled) & 1 (Skilled)

46. Usage of CLC in different countries?

CLC Technology is widely accepted in more than 40 Countries.

47. Approvals from any organizations?

CLC Technology is approved by Indian Standards.

48. IS Code?

IS Code for CLC Technology is IS 2185 Part IV.

49. Indian brick Machines Diversification?

IBM is well established in all corners of India and is already into Nepal & Middle – East Markets. IBM will very soon establish CLC Plants in the Africa Region.

50. Our Future Products?

IBM is soon going to enter Low Cost Housing & Pre-Fabricated Houses