Concrete Bricks Making Machines

We are Manufacturer, Supplier of Hydraulic Bricks Making Machine, Concrete Bricks Making Machines from Satara, Maharashtra, India.

Rubber Mould Paver Plants

Fly ash bricks are an environmentally friendly alternative to traditional clay bricks. Manufactured using fly ash, a by-product of coal combustion in thermal power plants, these bricks are known for their strength, durability, and energy-efficient production process. They are widely used in building construction due to their low cost, high compressive strength, and eco-friendly nature.

History of Fly Ash Bricks

Fly ash brick production gained momentum in the late 20th century, particularly after the environmental push to reduce the carbon footprint of construction materials. The abundant availability of fly ash, which was once considered waste, led to innovations in brick manufacturing, particularly in countries like India, where coal power generation is prevalent. The introduction of fly ash bricks significantly reduced the environmental impact of traditional clay bricks, which require fertile soil and high energy for firing.

Purpose of Making Fly Ash Bricks

The primary purpose of manufacturing fly ash bricks is to provide an eco-friendly and cost-effective alternative to clay bricks, while also utilizing industrial waste in a constructive manner. These bricks offer enhanced durability, reduce energy consumption during production, and contribute to minimizing the need for topsoil, which is extensively used in traditional brick-making.


Applications of Fly Ash Bricks

Fly ash bricks are versatile and can be used in various construction projects, including:

  • Residential Buildings: Used for load-bearing walls, partition walls, and boundary walls.
  • Commercial and Industrial Structures: Ideal for multi-story buildings, office complexes, and warehouses.
  • Infrastructure Projects: Bridges, flyovers, and public utility buildings.
  • Green Construction: Fly ash bricks are a key material in green and sustainable construction, reducing environmental impact.
Technical Advantages of Fly Ash Bricks
  • High Compressive Strength: Fly ash bricks have a compressive strength that surpasses traditional clay bricks, making them suitable for load-bearing applications.
  • Lightweight: Due to their composition, fly ash bricks are lighter than conventional bricks, reducing the dead load on structures.
  • Thermal Insulation: These bricks provide better thermal insulation, contributing to energy savings in buildings.
  • Water Absorption: Fly ash bricks have lower water absorption rates, which increases their resistance to seepage and reduces efflorescence.
  • Dimensional Accuracy: Precision molding ensures uniform size, reducing the need for plastering and making construction easier.
  • Eco-Friendly: Utilizing industrial waste (fly ash) and reducing the reliance on topsoil, fly ash bricks help mitigate environmental degradation.
Machine specification
No. Property HP/Cap.
1 Compaction Method Hydraulic Press
2 Press machine type Hydraulic Press pallet casting system
3 Energy Source Electrical, 3 phase, 440 volts
4 Hydraulic Power Pack 300 Liters
5 Hydraulic Motor 12.5 Hp Siemens make
6 Hydraulic Pressure 100 Ton
7 Cooling Water Condenser mounted in oil tank
8 Electronics control PLC base fully Automatic
9 Hydraulic components Yuken India
10 Electronics components Schneider or Siemens or L&T
11 Machine body 20 mm and 40 mm MS Tata make steel
12 Pallet size 530 x 580 x 19 mm wood press
Grades and Thickness of Fly Ash Bricks

Fly ash bricks are classified into different grades depending on their compressive strength, which is crucial for determining their applications:

Grade A Compressive strength of 10-12 MPa, suitable for heavy-duty construction and load-bearing structures.

Grade B Compressive strength of 7.5-9 MPa, used for moderate-load-bearing walls and general construction.

Grade C Compressive strength of 5-7 MPa, ideal for non-load-bearing walls and partitions.

Manufacturing Process of Fly Ash Bricks
  • Preparation of Raw Materials: Fly ash, sand/stone dust, cement/lime, and gypsum are mixed in specific proportions. The ratios are adjusted based on the required strength and quality of the bricks.
  • Mixing: The raw materials are mixed in either a pan mixer or a concrete mixer to achieve a uniform and consistent mix. This ensures that the fly ash and other components are evenly distributed.
  • Molding: The mixture is then pressed into brick molds using a hydraulic press or a mechanical brick-making machine. These machines apply high pressure to form the bricks, which increases their density and strength.
  • Curing: The bricks are removed from the molds and placed in a controlled curing environment. Unlike traditional bricks, fly ash bricks are not fired in kilns but are cured using steam or water for 14 to 28 days. Proper curing ensures the desired strength and durability.
  • Finishing and Testing: After curing, the bricks are inspected for quality, and tests are conducted to ensure they meet the required standards, including compressive strength, water absorption, and dimension uniformity.
Raw Materials Used

Fly ash bricks are composed of a blend of various raw materials, each playing a vital role in the brick's strength and durability:

  • Fly Ash: The primary material, fly ash, is a by-product from coal-fired power plants.
  • Cement or Lime: Used as a binder to hold the mixture together.
  • Sand/Stone Dust: Fine aggregates provide texture and help in improving the workability of the mix.
  • Gypsum: Added to improve the long-term strength of the bricks and to regulate the setting time.
  • Water: Necessary for mixing the ingredients and for the hydration process.
Environmental Impact and Sustainability

Fly ash bricks are a sustainable alternative that addresses two major environmental concerns: waste management and conservation of natural resources. By utilizing fly ash, a by-product of thermal power plants, the brick-making process reduces the amount of fly ash that would otherwise be landfilled or contribute to air pollution. Additionally, the elimination of topsoil in production reduces soil erosion and conserves agricultural land. The reduced energy requirement for curing, compared to the firing of traditional bricks, further contributes to their eco-friendliness.

Production Capacity
Bricks 4 inch

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Bricks 4 inch

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6 inch Bricks

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6 inch Bricks

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16 inch Block

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16 inch Block

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I Shape Block

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I Shape Block

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Zigzagee

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Balaji Construction Machine

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