Proper concrete vibration techniques are an important aspect of any construction-related industry.
Importance of concrete vibration
Vibrating concrete is important because it increases the density and strength of concrete by removing air spaces and packing aggregate particles together. Concrete buildings with tightly packed particles will be stronger and more durable.
Unvibrated concrete is full of tiny air pockets (honeycomb-like), resulting in a poor finish and weak structure.
Choosing the best vibratory concrete technology can be a consideration. The stability and durability of the structure depend on the vibration technology of the concrete.
Some of the best concrete vibration techniques:
Try not to vibrate the concrete for too long as it will break and separate the mixture. Also, don't over vibrate the concrete, as air may still be trapped in the lower layers of the cement mix. The result is a fragile concrete structure that can easily break under very little pressure.
For internal vibrators, the most common strategy is to gradually remove the vibrator at a rate of approximately 25 mm inches per second. If air bubbles continue to appear after the concrete vibrator is removed, more vibration is required.
In order to avoid cold joints between concrete layers when pouring a new layer of cement mixture, a vibrator can be used to penetrate into the pouring body to mix the previously poured layer with the newly poured layer.
When vibrating concrete, use only vertical motion to ensure uniform bonding of aggregate concrete. Horizontal movement can cause uneven distribution and increase the chance of the vibrator becoming entangled in the rebar or bars.
According to the structure of the building or the size of the working area, it is necessary to determine the appropriate type of concrete vibrator. For small projects, a compact, lightweight concrete vibrator may be more effective.
The vibration process of concrete can be eliminated by any self-consolidation technology.
Types of Concrete Vibration
Three types of concrete vibration are used:
Template shaker:
Surface vibrator:
Internal vibrator:
Immersion or internal concrete vibrators, often referred to as poker vibrator or needle vibrator, due to their tubular design, rotate with eccentric weights, causing vibrations to vibrate from the enclosure and through the concrete they are immersed in.
The vibration radius depends on the diameter of the housing, the instrument used, and the frequency and amplitude settings. Immersion concrete vibrations are currently available in a variety of radii and are driven by fuel, electric motor.
Fuel powered poker concrete vibrators use a gasoline or diesel engine to transmit motion. Compatible with all sizes of vibrator shafts for easy use on job sites without power. BISON petrol poker concrete vibrator, is one of the best vibration alternatives for places without electricity.
The size of the engine is just right for the needs of a dense workplace.
Sturdy rack for easy transport.
Motor with oil level control system.
Has a 6m flexible drive shaft
Concrete poker size: 28mm/32mm/38mm/45mm/50mm/60mm.
