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Concrete Funnel for Slump Cone Filling: Fast and Accurate Use Guide
A slump cone funnel is an essential accessory for fresh concrete slump testing, designed to make filling faster, cleaner, and more accurate. Available individually or as part of the HM-401 Deluxe Slump Test Set, this funnel is made from lightweight, corrosion-resistant aluminum for long-lasting performance. It measures approximately 6–6.5in high, with an 8.5in top diameter and 3.75in bottom diameter, allowing smooth and controlled concrete placement into slump cones.
Every slump cone performs better with a properly sized funnel. Certified MTP offers a seamless spun aluminum slump cone funnel with a rolled top edge for easy handling and cleaning. Its durable yet lightweight design reduces spillage, improves efficiency, and helps maintain consistent test results during concrete testing operations.
Purpose and Practical Use
The slump cone funnel is designed to transfer fresh concrete into the cone with minimal waste and mess. Its shape allows concrete to flow smoothly, even in tight or confined work areas. This makes it especially useful for job sites, laboratories, and field testing, where accuracy and cleanliness are important.
Funnels are also helpful when placing concrete in foundation piers, blocks, and forms, where controlled placement reduces cleanu
p time and material loss. Using the right funnel improves productivity and supports consistent concrete quality.
What is a Slump Cone
A slump cone is a standard concrete testing tool used to measure the workability and consistency of fresh concrete. Once filled and lifted, the concrete settles, and the amount of slump is measured. This test helps ensure the mix is suitable for applications such as foundations, walls, slabs, and floors, reducing the risk of poor placement or rework.
Features and Benefits
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Enables fast, controlled filling of slump cones
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Reduces concrete waste and site mess
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Improves testing accuracy and repeatability
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Enhances job-site safety by limiting concrete handling
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Cost-effective tool for quality control
Types of Slump Cone Funnels
Slump cone funnels are available in aluminum, stainless steel, and custom designs to suit different job requirements. Aluminum funnels are lightweight and easy to handle, while stainless steel options offer added durability for harsh environments. Selecting the right funnel ensures better efficiency, precision, and long-term performance for any concrete testing application.
Plywood Funnel Design
A plywood funnel is a simple tool used in fine homebuilding and construction projects to fill piers with concrete, blocks and other materials. The design is to create a curved or tapered shape so you can pour concrete from buckets without spilling on the sides of the blocks.
To build, you will need:
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1/2” or 3/4” plywood
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Jigsaw or circular saw for cutting the plywood
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Drill press or hand drill for drilling holes
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Wood screws or nails for assembling the funnel
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Waterproof glue or sealant for sealing the edges
The funnel should fit over the blocks snugly, with the curved cutouts allowing to pour concrete. The plywood ears into the block cells should be sturdy enough to hold the funnel in place. This way you can pour concrete accurately and efficiently, with minimal waste and better quality of your construction work.
Plywood Funnel
Using a funnel is a common practice in construction projects, especially when building walls, floors and piers. The funnel for quick and neat concrete pour, the vertical rebar for additional support and stability to the structure.
To use a funnel, follow these steps:
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Prepare the site by laying out the blocks and vertical rebar according to the project plans.
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Place the funnel over the blocks, snug fit.
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Pour concrete into the funnel, using a bucket or pump to fill the blocks.
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Use a level and trowel to make sure the concrete is evenly spread and blocks are in place.
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Let the concrete set and cure according to the manufacturer’s instructions.
This way the concrete is poured where it’s needed and your construction project will be more structurally sound.
As with all Certified MTP concrete slump testing equipment, our funnels are top of the line. During testing we collect statistical data, including the type of browser used by the user. Our aluminum slump cone funnels are compatible with:
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T 119
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ASTM C 143
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ASTM C 143M
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BS 1881
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AASHTO T 119M/ T 119
Safety
When working with concrete and filling piers, always take necessary safety precautions to avoid accidents and injuries. Wear gloves, safety glasses and dust mask when handling concrete and materials. Keep the work area clean and clear of debris and be careful when lifting heavy objects or working at heights. Follow proper installation procedures for the hopper, pipe and other components to ensure a safe and stable system. Be aware of the risks associated with vertical rebar (sharp edges and entanglement) and take measures to mitigate them. Also consider the importance of proper concrete mixing ratios (see “What are the Correct Concrete Mixing Ratios - Ratio Chart”) to get a strong and durable foundation.
