Thursday, 12 May 2016

Vdf Flooring Specification

(VDF Flooring Specifications or Flooring Specifications or VDF Flooring Methodology or VDF Flooring Procedure or Vacuum Dewatered Flooring technical Specification or Vacuum Dewatered Flooring Procedure)

• Tying Line Dori (Threads) as per the slope requirements

• Laying Guide Rails to every 4 meters using MS Channels or as required in straight lines along the Line Dori, taking levels as per the slope and fixing them using concrete also called grouting and left to set for a minimum of 24 hours

• Pouring the concrete in between the channels and spreading using Shovel or Hoe (Kudal/Parah)

• Vibrating the concrete with a poker vibrator especially to the sides of the panels

• Surface Vibration the concrete using Double Beam Screed Vibrator running over the guide rails twice to achieve maximum compaction for RCC with double mats

• Final leveling of the concrete using the Straight Edge/Bull Float/Aluminium Bottom (Fanti/Baddha)

• A system of lower mats & top mat is laid on the green concrete & this is attached to a vacuum pump. This draws out surplus water if any.

• Application of Power Floater on the surface until the surface is sufficiently compacted & leveled with no major lines appearing any more

• Final finishing using Power Trowel and trowelling until the required finish is achieved. Finish could be any of the Smooth Finish, Sand Finish or Line Finish.

Tuesday, 10 May 2016

VDF Flooring Procedure



In this system, the VDF floors or vacuum dewatered flooring, concrete is poured into place and the vibrations from the vibrator particularly on the sides of the panels for the thickness of the floor more than 100 mm. At that point a surface vibration by utilizing double beam screed vibrator works over a surface is strengthened on the channel formwork separated 4.0 m from each other. Screed vibrator to run twice to accomplish the ideal sealing and Vibrobetona, then a surface arrangement is adjusted using the calibration line.

After that, the system of the lower and upper floor mats mat stack on new concrete and joined to the vacuum pump. It draws out overabundance water, assuming any, the concrete left to set. At the point when the base cement is solidified at the time when the movement traffic light foot leaves a print around 3-6 mm, surface hardener is put at an even rate of between 3-5 kg/Sqmt any draining water have to have vanished, but now concrete must be wet sparkle. Concrete is then further compacted and is adjusted to the force of the Floater then, completing as a rubbing machine.