Collection Tremie Hopper, 18 x 30in

Collection Tremie Hopper, 18 x 30in

Definition and Purpose

A tremie pipe is a long, vertical pipe used in construction to place concrete underwater or below the ground surface. The term “tremie” comes from the French word for funnel. The primary purpose of a tremie pipe is to ensure a smooth and controlled placement of concrete in situations where it needs to flow into place without segregation. This is particularly important in deep foundation construction, where the concrete must be placed at significant depths without compromising its quality.

Tremie pipes are designed to provide a continuous flow of concrete, allowing for precision in placement and minimizing the risk of segregation, which helps maintain flow during the pouring process. They are especially useful in underwater construction, where traditional methods of concrete placement would be challenging or impractical. By using a tremie pipe, contractors can pour concrete underwater with greater accuracy and control, ensuring a strong and durable structure.

In addition to their use in underwater construction, tremie pipes are also used in diaphragm walls and piles, where the concrete must be placed accurately and without segregation. The use of a tremie pipe in these applications helps to maintain the quality of the concrete mix and prevent washout or segregation.

Overall, the purpose of a tremie pipe is to provide a reliable and efficient means of placing concrete in challenging environments, while maintaining the quality and integrity of the concrete mix.

Key Features and Design

Tremie pipes are meticulously designed to facilitate the smooth and controlled placement of concrete underwater or below the ground surface. These pipes are typically long and vertical, constructed from durable materials such as metal or PVC, which can withstand the pressures and corrosive environments associated with underwater construction. The key features of a tremie pipe include:

• Long, Vertical Pipe: Available in various diameters and lengths, these pipes are designed to reach significant depths, ensuring the concrete is placed precisely where needed.

• Conical Hopper: Positioned at the upper end, the conical hopper allows for the easy introduction of concrete into the pipe, ensuring a continuous flow.

• Discharge Opening: Located at the lower end, the discharge opening controls the release of concrete, preventing segregation and washout.

• Tremie Pipe Seal: This seal is crucial for preventing water from entering the pipe and mixing with the concrete mix, maintaining the integrity of the freshly placed concrete.

• Foam Rubber Plug: Before pouring concrete, a foam rubber plug is used to seal the bottom of the tremie pipe, ensuring that the concrete mix remains uncontaminated by water.

The design of tremie pipes ensures a continuous flow of concrete, which is essential for maintaining the quality and uniformity of the concrete mix. By minimizing the risk of segregation and washout, these pipes play a vital role in underwater construction and other challenging environments.

Gar-Bro 802, Collection Tremie Hopper for Concrete Placement, 18 x 30in

Gar-Bro Collection Hoppers are designed to facilitate transfer of concrete from the bucket or transit mix truck to restricted areas. Used in conjunction with a variety of chutes or elephant trunk, hoppers complete a versatile concrete placement system that will suit any job requirement. For most jobs, a center discharge collection hopper will be used as it is the most versatile.

Top Opening Size Inches  18 x 30

Height Inches 22

Diameter of Discharge Opening 6, 8, 12

Weight Pounds 35

The Gar-Bro 802 Collection Tremie Hopper, measuring 18 x 30 inches, is a must-have tool for any concrete placement job. With its top opening size of 18 x 30 inches and a height of 22 inches, this hopper allows for easy transfer of concrete from a bucket or transit mix truck to restricted areas.

Designed with versatility in mind, this collection hopper can be used with a variety of chutes or elephant trunks to suit any job requirement. Most commonly used with a center discharge configuration, the Gar-Bro Collection Tremie Hopper is the perfect addition to your concrete placement system.

The Gar-Bro 802 features a diameter of discharge openings in 6, 8, and 12 inches, giving you the flexibility to choose the size that best fits your needs. With a weight of only 35 pounds, this hopper is lightweight yet durable, making it easy to transport and handle on the job site.

Whether you’re working on a small residential project or a large commercial construction site, the Gar-Bro 802 Collection Tremie Hopper is a reliable and efficient tool that will streamline your concrete placement process. Invest in quality equipment with Gar-Bro and make your job easier and more efficient.

Tremie pipes are indispensable in the construction industry, particularly for projects involving underwater construction and deep foundation construction, as they allow contractors to place concrete underwater accurately and without segregation.

Applications and Benefits

Tremie pipes are indispensable in the construction industry, particularly for projects involving underwater construction and deep foundation construction. Their versatility and effectiveness make them suitable for a wide range of applications, including:

• Underwater Foundations: Essential for placing concrete in underwater foundations, such as bridge piers and offshore platforms, tremie pipes ensure the concrete is placed accurately and without segregation.

• Diaphragm Walls and Piles: Crucial for constructing diaphragm walls and piles, tremie pipes help maintain the quality and integrity of the concrete mix in deep foundation construction.

• Complex Structures: Tremie pipes facilitate the precise placement of concrete in hard-to-reach areas, ensuring the structural integrity of complex structures.

• Underwater Concrete Placement: Widely used for various underwater applications, including seawalls, breakwaters, and offshore structures, tremie pipes ensure a smooth and controlled placement of concrete.

The benefits of using tremie pipes are numerous:

• Continuous Flow of Concrete: Tremie pipes enable a smooth and controlled placement of concrete, minimizing the risk of segregation and washout.

• Prevents Segregation and Washout: The tremie pipe method ensures that the concrete is placed accurately and without segregation, maintaining the quality of the concrete mix.

• Versatility and Depth: Tremie pipes are effective in delivering concrete to considerable depths, making them ideal for deep foundation construction.

• More Reliable Strength: The method allows for more reliable strength of the placed concrete, as the continuous flow ensures uniformity and completeness of filling.

By using tremie pipes, contractors can achieve precise and reliable concrete placement, ensuring the success of their construction projects.

Best Practices for Operation

To ensure a successful concrete pour using a tremie pipe, it is essential to follow best practices for operation. These practices help maintain a continuous flow of concrete and prevent issues such as clogs or premature setting. Key best practices include:

• Batch Control: Ensure that each batch of fresh concrete is introduced quickly to maintain continuous flow and prevent premature setting. This helps in achieving a smooth and controlled placement.

• Equipment Maintenance: Regularly check and maintain tremie pipes and accessories to ensure they are free from clogs and damage. Proper maintenance is crucial for the efficient operation of the equipment.

• Proper Training: Operators should be well-trained in managing the equipment and understanding the dynamics of concrete flow through tremie pipes. Proper training ensures that the concrete is placed accurately and without issues.

• Gravity Feed: Use a gravity feed system to pour concrete into the tremie pipe, ensuring a continuous flow of concrete. This method helps in maintaining the quality and uniformity of the concrete mix.

• Foam Rubber Plug: Use a foam rubber plug to seal the bottom of the tremie pipe before pouring concrete. This prevents water from entering the pipe and mixing with the concrete mix, ensuring the integrity of the freshly placed concrete.

By following these best practices, contractors can ensure a successful and efficient concrete placement process, achieving the desired results in their construction projects.

Advantages of the Tremie Method

The tremie method offers several advantages over traditional concrete placement methods, making it a preferred choice for many construction projects. These advantages include:

• Smooth and Controlled Placement: The tremie pipe method ensures a smooth and controlled placement of concrete, minimizing the risk of segregation and washout. This is particularly important in underwater construction and deep foundation construction.

• Continuous Flow: The tremie pipe enables a continuous flow of concrete, allowing for precision in placement. This continuous flow helps in maintaining the quality and uniformity of the concrete mix.

• Reduces Air Pockets: The slow and continuous placement of concrete through a tremie pipe helps minimize the entrainment of air, ensuring a more solid and durable structure.

• Suitable for Underwater Applications: Tremie pipes are especially useful in underwater construction, where traditional methods of concrete placement would be challenging or impractical. They ensure accurate and controlled placement of concrete underwater.

• Minimizes Disturbance to Substrate: The controlled flow of concrete through a tremie pipe helps minimize disturbance to the substrate or surrounding soil, ensuring the stability of the structure.

• Adaptable to Various Construction Environments: Tremie pipes can be used in a variety of construction environments, including marine structures, bridge foundations, and other subaqueous applications. Their versatility makes them suitable for a wide range of projects.

• Maintains Quality in Deep Foundations: In deep foundation construction, where concrete needs to be placed at significant depths, tremie pipes provide an effective means of ensuring that the concrete is properly placed without compromising its quality.

The tremie method’s ability to provide a smooth and controlled placement of concrete, along with its suitability for various construction environments, makes it an invaluable tool in the construction industry. By using tremie pipes, contractors can achieve precise and reliable concrete placement, ensuring the success of their projects.