What is vibrating hammer compaction test?
It provides an alternative method for the compaction of soil samples in the determination of dry density/moisture content relation (called Proctor), unconfined compressive strength of stabilized soils and CBR tests.
What is vibrating hammer?
A vibratory hammer is a tool used to drive piles into the ground when building foundations for things like bridges, buildings, roads, marine docks, walls or railways.
What is compaction hammer?
A compaction hammer is a tool used for the compaction of soil samples to determine their maximum dry density. The test used to determine this density is known as the Proctor compaction test, in honor of Ralph Roscoe Proctor.
How does vibro hammer work?
OMS Vibro Hammer Machines also known as vibro drivers and vibratory hammers work on the idea of reducing the resistance of the ground with vibration and by changing the formation of the ground. The vibratory piling machine transfers vertical vibrations to the pile via the hydraulic clamp.
How does diesel hammer work?
A single-acting diesel hammer (figure 9) works by initially raising the hammer with a cable and then releasing the ram. As the ram free-falls within the cylinder, fuel is injected into the combustion chamber beneath the ram and the fuel/air mixture becomes pressurized.
What is Proctor Mold and Hammer?
Used for determining the relationship between the moisture content and density of compacted soils. Made of plated steel, includes collar, mould body and base plate. Rammers are used to compact the soil sample in the Proctor Moulds and made of plated steel.
What is Proctor mould?
Standard Proctor Moulds are used for determining the moisture content and density of compacted soil. These are made of plated steel for corossion , includes collar, mould body and base plate. Standard Proctor Rammers are used to compact the soil sample in the Proctor.
How do I choose a vibro hammer?
How can I select the right Vibratory hammers? To select the right vibratory hammer for a given job, some general rules such as soil condition, force of vibratory hammer, weight of pile, weight of hammer and type of pile are recommended.
How does a pile driving hammer work?
Traditional pile driving machines work by using a weight placed above a pile that releases, slides down vertically and hits the pile, hammering it into the ground. The weight is raised mechanically and can be powered by either hydraulics, steam or diesel. When the weight reaches its highest point, it is released.
What is 95 Proctor compaction?
For example, specifications often require compaction to be 95 percent of Standard Proctor. This means the on-site soil density must be equal to 95% of the maximum achievable compaction. • Compaction is achieved by applying three basic types of force to the soil mass.
What is Proctor needle method?
Proctor’s Needle Method: Principle: The basic principle of Proctor’s needle method is to determine the water content of compacted soil indirectly without drying the sample based on the resistance offered by the compacted soil to the penetration of Proctor’s needle.
What is a vibration compaction set?
Vibration compaction set used to compact soil samples for use in tests referencing ASTM D7382-08 methods. This method refers to the determination of the maximum dry unit weight and water content range for the effective compaction of granular soils using a vibrating hammer.
What is a vibrating hammer used for?
Used for the compaction of Proctor and CBR soil specimens. Using the appropriate tamping foot it can also be used for compacting asphalt in the “Percentage refusal density test”. See Vibrating hammer for P.R.D. specimens.
What is the vibration hammer test method?
This method refers to the determination of the maximum dry unit weight and water content range for the effective compaction of granular soils using a vibrating hammer. The test set includes a heavy-duty frame designed specifically for easily mounting a vibration hammer.
What are the parts of a vibration hammer?
A vibration hammer, which includes a 5.75″ tamper and a 12″ long mounting shank. The set also includes an 11″ split, compaction mold. The vibrating hammer test method may be performed in the field or in the laboratory.