Fly Ash Bricks Machine for Sale

What are Fly Ash Bricks?

Fly ash bricks are a type of building material made from fly ash, a byproduct of coal combustion. They are known for their durability, strength, and eco-friendliness. There are three main types of fly ash bricks based on the raw materials and curing methods used:

Autoclaved fly ash bricks

These bricks are made from a mixture of fly ash, quicklime, gypsum, and aggregates like cinder. The mixture undergoes hydration, is milled, and then formed under high pressure using a hydraulic press. The bricks are cured using steam, either under normal or high pressure.

They have high compressive strength, ranging from 10 MPa to 20 MPa, and can withstand up to 15 freeze-thaw cycles. The continuous hydration reaction in a humid environment helps improve their strength over time.

Steam-Free and Burn-Free Fly Ash Bricks

These bricks use cement as the main binding material along with fly ash, slag, stone powder, sand, and gravel. They are formed using a vibrating concrete brick machine and naturally cured to achieve a strength of up to 15 MPa. This method is suitable for low-investment projects.

Clay-containing Fly Ash Bricks

Made from a mix of fly ash, industrial slag, and clay, these bricks are extruded by a vacuum clay brick machine and then burned at high temperatures. The combustion of fly ash and slag within the bricks reduces the need for additional fuel, making the process energy-efficient.

These bricks offer excellent bending resistance, compression resistance, and insulation properties, with a compressive strength of 16.68 MPa.

What are Fly Ash Bricks Machines?

A fly ash brick machine automates the production of fly ash bricks, reducing manual labor and increasing efficiency. These machines are essential for manufacturers looking to scale production or reduce costs. The types of machines include:

• Static Press Brick Machine: Used for producing steam-cured fly ash bricks.
• Vibrating Concrete Block Machine: Used for producing steam-free fly ash bricks.
• Vacuum Clay Brick Machine: Used for producing burned clay fly ash bricks.

These machines handle raw material feeding, mixing, and brick forming with minimal supervision, thereby enhancing production efficiency and consistency.

Why Should You Use Fly Ash Bricks?

Fly ash bricks are a sustainable alternative to traditional building materials, offering numerous benefits. These bricks are made from fly ash, a byproduct of coal combustion and is used in various applications, including soil stabilization and concrete production.

Particularly, fly ash bricks offers several advantages:

• Eco-friendly: Utilizes industrial waste, reducing environmental impact.
• Cost-effective: Lower production costs compared to traditional bricks.
• Durable and Strong: High compressive strength and resistance to environmental conditions.
• Versatile: Can be used in various construction applications, from residential buildings to industrial structures.

Using fly ash in brick production not only promotes sustainability but also enhances the quality and longevity of the building materials.

What are the Raw Materials used in the Production of Fly Ash Bricks?

Quicklime

Quicklime is the primary raw material for autoclaved fly ash bricks. It activates the fly ash, imparting necessary physical and mechanical properties to the bricks.

• Calcium Content: Higher calcium content in lime reduces production costs and enhances brick quality.
• Fast Hydration: Quicklime shortens the digestion process, boosting production efficiency.
• High Digestion Temperature: Elevated temperatures during digestion improve brick strength before steam curing.

Gypsum

Gypsum accelerates the hydration reaction, enhances crystallization, and improves early brick strength, especially flexural strength.

• Fineness Requirement: 88um sieve with a sieve residue not exceeding 15%.
• Calcium Sulfate Content: Should be ≥ 65%.
• Sources: Natural gypsum and industrial waste gypsum like desulfurized gypsum.
• Dosage: Determined based on the desired brick strength.

What are the Formulas of Manufacturing Fly Ash Bricks?

Fly ash bricks are made by combining fly ash with other components like water and sand, using different formulas to achieve desired properties. There are three main methods:

Quicklime Fly Ash Bricks – Steam Curing

Hydrated Lime Fly Ash Bricks – Steam Curing

Fly Ash Bricks Manufacturing Using Cement – Natural Curing

Others Formula for Fly Ash Bricks

2% Gypsum for Autoclave Steam Curing Fly Ash Bricks

1% Gypsum and No Sand for Autoclave Steam Curing Fly Ash Bricks

Clay or Soil for Burned Fly Ash Bricks

How to Produce Fly Ash Bricks – The Manufacturing Process

Producing fly ash bricks using a manufacturing machine can be straightforward if you follow the proper steps. Here is a detailed guide to help you understand the process:

1. Preparing the Raw Materials:
   • Hydrated Lime: Add hydrated lime powder to the fly ash.
   • Gypsum: Mix gypsum into the blend.
   • Quarry Dust: Incorporate quarry dust into the mixture.
2. Mixing:
   • Combine fly ash, quarry dust, hydrated lime, and gypsum in a pan mixer.
   • Add the required amount of water to ensure thorough mixing. Refer to the appropriate mixing ratios mentioned above.
3. Transferring the Mixture:
   • After mixing, transfer the mixture to the hopper of the fly ash brick-making machine via a conveyor belt.
4. Forming the Bricks:
   • The mixture is moved into the cavity of the fly ash brick press machine.
   • The machine presses the materials to form bricks with the desired shape and size.
5. Ejection:
   • The formed bricks are ejected from the machine and are ready for the curing process.

Steam Curing Fly Ash Bricks

Autoclaved fly ash bricks require curing, which can be done in two ways:

1. Normal Pressure Steam Curing:
   • Bricks are cured using steam at normal atmospheric pressure.
   • This method is suitable for smaller production scales and can be more cost-effective.
2. High-Pressure Steam Curing (Autoclaving):
   • Bricks are cured in an autoclave with high-pressure steam.
   • This method enhances the strength and durability of the bricks and is ideal for large-scale production.

By following these steps, you can efficiently produce high-quality fly ash bricks. The process is similar to making concrete blocks, ensuring that the right proportions and proper curing methods are applied to achieve the best results.

Differences of Fly Ash Bricks Steam Curing Method.

The Advantages of Fly Ash Brick Making Machine

Manufacturers rely on fly ash brick machines to enhance their production efficiency. Here are some key benefits of using these machines:

1. Turning Waste into Wealth Fly ash, often considered waste, is transformed into valuable building materials by the machine. It mixes fly ash with other ingredients to produce fly ash bricks, thus converting waste into wealth. 
2. Boosts Production Automatic brick making machines significantly increase production speed. Unlike manual labor, which can be time-consuming, these machines can press materials into the desired shape within minutes, meeting high customer demands efficiently. 
3. Product Quality and Quantity
   The machine ensures high-quality bricks and can produce a large quantity simultaneously. This combination of quality and quantity is ideal for manufacturers looking to maintain high standards while meeting large orders.
4. Versatility
   Fly ash brick machines are versatile, capable of producing different types of bricks, including interlocking bricks, hollow blocks, and paving blocks. This multipurpose functionality makes them suitable for various construction needs. 
5. Cost Savings
   Using these machines reduces labor costs and utilizes low-cost materials. Modern brick making machines also consume less energy, further lowering production costs and saving on electricity bills.
6. Durability
   Fly ash brick machines are built to last. They feature strong shaped steel bodies and special welding technology, making them shockproof and highly durable.

How to Choose The Suitable Model of Fly Ash Brick Machine?

Choosing the right automatic fly ash brick machine requires careful consideration of several factors:

1. Consider Your Budget
   Factor in not only the cost of the machine but also the expenses for raw materials, the construction site, and electricity.
2. Buy from a Reliable Manufacturer
   Purchase from a reputable manufacturer with positive reviews. This ensures you get a reliable and efficient machine.
3. Capacity
   Choose a machine that can produce the required number of bricks within a specific period. Opt for one that can press materials quickly and produce solid bricks consistently.
4. Purpose of the Brick Machine
   Define the type of bricks you need and select a machine that can produce those specific bricks efficiently.

How to Choose the Best Fly Ash Brick Machine Manufacturer?

Selecting the right manufacturer is crucial for obtaining a high-quality fly ash brick machine. Here are some tips:

1. Customer Feedback Read reviews from previous customers. Manufacturers with numerous positive feedback are more likely to provide reliable machines.
2. Customer Support Evaluate the manufacturer’s responsiveness to customer inquiries and feedback. Good customer support indicates they will address your concerns promptly.
3. After-Sale Service Ensure the manufacturer offers after-sale services. This is essential for getting timely repairs and maintenance when needed.

When choosing the best fly ash brick making machine, trust reputable manufacturers like LONTTO for quality equipment and reliable service.

How much Fly Ash Brick Machines Cost?

Fly ash brick machines typically range in price from $2,500 to $40,000. The LMT4-40 Manual Fly Ash Bricks Machine is the most affordable option, priced between $2,500 and $3,500. On the higher end, the QT10-15 Bricks Machine costs between $35,000 and $40,000, offering advanced features and higher production capacity.

Fly Ash Brick Machine Prices vary based on several factors, including the type of machine, its efficiency, and specific features. Here’s a breakdown of what you can expect:

1. Type of Machine: The type of machine significantly influences the price. For example, a fully automatic fly ash brick machine generally costs more than a semi-automatic or manual machine. This is due to the advanced technology and automation features in fully automatic models, which increase efficiency and reduce labor costs.
2. Specifications and Features: The specific attributes and capabilities of a machine, such as production capacity, hydraulic systems, and automation levels, also impact the price. Machines with higher production capacities or additional features like hydraulic presses tend to be more expensive.

Why Consider Lontto for your Fly Ash Bricks Making Machine?

LONTTO is a leading supplier of Fly Ash Brick Making Machines, offering reliable, high-quality solutions that enhance production efficiency and reduce costs. Our machines produce durable, eco-friendly bricks with superior compressive strength, perfect for sustainable building practices. Trust LONTTO to provide the right machine for your needs, backed by expert support and a commitment to your success.