Cylinder Mold, Vibrating Table Apparatus, ASTM C1176 for Cylindrical Test Specimens
For making roller-compacted concrete in cylinder molds with a vibrating table when rodding and internal vibration is not practical. This is for making cylindrical test specimens. This is for making cylindrical test specimens for accurate results.
The unit consists of a vibrating table which can be bolted to the floor or a substantial base slab. For nominal maximum size aggregate, the fraction passing through a specific sieve size is important. If the nominal maximum size aggregate is greater than 50 mm, larger, nominal maximum size aggregate must be excluded for testing.
This is for cement treated aggregate and mixtures similar to roller-compacted concrete. Soil cement and roller compacted concrete can also be tested with these methods.
The standard practice for roller compacted concrete may include a swing arm with guide sleeve for the 20 lb (9kg) surcharge weight attached to the base, so the weight can swing out of the way when filling the mold but can swing back into place to apply the weight to the top of the specimen in the mold before vibration. The test mold is a 6” x 12” mold conforming to ASTM C470 and is locked into place on the base of the unit.
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Includes vibrating table, swing arm with guide sleeve for 50 lb. surcharge weight and test mold.
Compacted Concrete in Cylinder Molds
Compacted concrete in cylinder molds with a vibrating table is a common practice in the construction industry. This is to make cylindrical test specimens from fresh concrete, which is then used to determine the consistency and workability of the concrete. The process is to pour the concrete mixture into a cylinder mold attached to a vibrating table, then vibrate the table to compact the concrete. The vibrating table simulates the compaction process used in roller-compacted concrete construction.
The compacted concrete in cylinder molds is used to test the properties of roller-compacted concrete such as compressive strength, density and durability. This is to ensure the concrete meets the requirements for construction projects. Using a vibrating table to compact the concrete in cylinder molds is more efficient and effective than rodding and internal vibration.
Cylinder Mold, Vibrating Table Apparatus, ASTM C1176 Meets Testing Methods
The cylinder mold, vibrating table apparatus, ASTM C1176 is a device to make compacted concrete in cylinder molds with a vibrating table. This apparatus meets the testing methods outlined in ASTM C1176 which is a standard practice for making roller-compacted concrete in cylinder molds with a vibrating table. The apparatus includes a vibrating table, swing arm and test mold.
The vibrating table is the heart of the apparatus as it provides the vibration to compact the concrete. The swing arm is to apply a surcharge weight to the concrete to make sure the concrete is compacted evenly. The test mold is designed to meet ASTM C470 which is a standard for testing concrete in cylinder molds.
Equipment and Testing
The equipment to make compacted concrete in cylinder molds or molds using a vibrating table is to give accurate and reliable results. The vibrating table is calibrated to give a consistent vibration frequency and amplitude which is critical to compact the freshly mixed concrete prepared evenly. The test mold is durable and long lasting and made from materials that are corrosion and wear resistant.
Pour the fresh concrete into the test mold, attach to the vibrating table. Vibrate the table and compact the concrete for a set time. Remove the compacted concrete from the test mold and test its properties such as compressive strength and density.
Cylinder Mold, Vibrating Table Apparatus, ASTM C1176 Meets Testing Methods
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C1176
