Humboldt HU3640M-00 Concrete Slump Cone for Field Consistency Testing (Steel, ASTM C143)
- Heavy-gauge seamless spun steel
- Fitted with handles and foot lugs
Measure the consistency of freshly mixed concrete in the field or laboratory using a durable, standardized steel slump mold.
The Humboldt H-3640M metric steel slump cone is designed for determining the slump of freshly mixed concrete during field inspections and laboratory testing. Its standardized conical dimensions allow technicians to evaluate concrete consistency using established slump test procedures, including ASTM C143/C143M and AASHTO T119.
Manufactured from steel with a plated finish to resist rust, the cone features integrated handles and foot lugs for positioning and stability during testing. Its metric dimensions are 200 mm at the base, 100 mm at the top opening and 300 mm in height.
Standardized Dimensions for Concrete Slump Testing
The H-3640M provides the required mold geometry for conventional concrete slump testing. During the test, freshly mixed concrete is placed into the cone and consolidated according to the applicable test procedure. After the mold is lifted vertically, the reduction in height of the concrete specimen is measured to determine slump.
Slump testing provides an indication of fresh concrete consistency and can help identify changes between batches. Results should be interpreted in conjunction with the specified mix design, sampling procedure and applicable testing standard.
Steel Construction for Repeated Testing
The cone features a plated steel surface that helps resist rust under routine field and laboratory conditions. Its handles allow the technician to position and lift the mold, while the foot lugs provide points for holding the cone securely against a suitable testing surface.
The cone is designed for use with the Humboldt H-3636 slump base plate. Other equipment, including a tamping rod and measuring device, is required to perform a complete slump test according to the selected procedure.
Key Features and Advantages
- Metric slump mold: 200 mm base diameter, 100 mm top diameter and 300 mm height.
- Plated steel construction: Finish helps resist rust during routine use.
- Integrated handles: Facilitate positioning and vertical removal of the mold.
- Foot lugs: Allow the cone to be held firmly during filling and consolidation.
- Standardized test geometry: Suitable for slump testing under ASTM C143/C143M and AASHTO T119 procedures.
- Field and laboratory use: Supports fresh concrete consistency checks at construction sites and testing facilities.
- Compatible accessory system: Designed for use with the Humboldt H-3636 base plate.
Applications in Concrete Quality Control
The H-3640M is used for fresh concrete slump testing in construction material laboratories and field quality control operations. Slump measurements help technicians assess concrete consistency and document changes between sampled batches.
The cone is suitable for use by concrete testing laboratories, construction inspection teams and concrete producers following applicable sampling and testing procedures.
Technical Specifications
| Manufacturer | Humboldt Mfg. Co. |
|---|---|
| Model | H-3640M |
| Product Type | Metric steel concrete slump cone |
| Material | Steel |
| Finish | Plated for rust resistance |
| Base Diameter | 200 mm |
| Top Opening Diameter | 100 mm |
| Height | 300 mm |
| Handling Features | Handles and foot lugs |
| Compatible Base Plate | Humboldt H-3636 |
| Primary Test Standards | ASTM C143/C143M; AASHTO T119 |
| Application | Fresh concrete slump testing |
Frequently Asked Questions
What is the difference between the H-3640 and H-3640M slump cones?
The H-3640 uses inch-based dimensions: approximately 203 mm at the base, 102 mm at the top and 305 mm in height. The H-3640M uses exact metric dimensions of 200 × 100 × 300 mm. Select the version specified by your testing procedure.
Does the H-3640M include a base plate and tamping rod?
The H-3640M is the slump cone itself. The H-3636 base plate, tamping rod and measuring accessories are separate pieces of equipment unless specifically included in a supplier's kit.
Can a concrete slump test determine compressive strength?
No. A slump test evaluates the consistency of freshly mixed concrete, not its compressive strength. Strength must be evaluated using appropriate concrete specimen preparation, curing and compression testing procedures.
Can this cone be used for self-consolidating concrete?
The manufacturer lists ASTM C1611 among the standards associated with this cone family. However, self-consolidating concrete is evaluated using a slump-flow procedure rather than the conventional ASTM C143 slump measurement. Follow the applicable standard and use the required testing equipment.
How should the steel cone be maintained after testing?
Remove residual concrete promptly, clean the mold without damaging its surface and inspect the openings and body for deformation. Maintaining the specified geometry is important for reliable slump testing.
Is the slump cone alone sufficient for ASTM C143 testing?
No. A complete test requires additional apparatus, including a suitable base surface, tamping rod and measuring device, as well as proper sampling and execution of the prescribed test procedure.
| Price | $USD 96.00 |
|---|
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