Products tagged with 'vibrator shaft only'

The Concrete vibrator needle is also known as vibrating poker. It is available in various diameters,including 25mm,28mm,32mm, 35mm, 38mm,45mm,50mm,60mm,70mm and 75mm . Vibrating concrete is critical because by removing air pockets & packing the aggregate particles together, it increases the density and strength of the concrete. Tightly packed particles will result in a stronger, more durable concrete structure. Overall, vibrating concrete is a procedure that consolidates concrete by eliminating air pockets and distributes the solid particles within poured concrete properly to prevent honeycombing and improve the durability a nd quality of concrete.

Contractors and site managers must comply with vibration control procedures to avoid damage to nearby structures during a construction project. Site managers will ensure vibration monitoring tools are both implemented and functional, and pre/ post construction crack inspections may be performed. The abrasion resistance of concrete surfaces is normally improved by adequate compaction. However, excessive vibration, or excessive working of the surface, can cause an excessive amount of mortar (and moisture) to collect at the surface, thereby reducing its potential abrasion resistance. Vibration of fresh concrete reduces its internal shear strength, and enables concrete to momentarily liquefy to facilitate the consolidation process. When the vibration stops, the liquid flow subsides.