Vacuum Dewatering Flooring (VDF)

• Price: *****
• Marketed By: Delta Business / Trendsetters

Flooring is an important part of any structure intended to use it as residential, commercial, and industrial purposes. The vacuum dewatering concrete flooring, also known as VDF System is suitable for high abrasion and heavy traffic movement. It is preferably used in making concrete roads, railway platforms, industrial floors, bridges, RCC Roads, Pre-cast Concrete Products etc.

What is Vacuum Dewatering Flooring

Usually, the deficiencies like drying shrinkage, excess water in mix, improper grade/thickness control, poor finishing and curing techniques, and excessive load on the concrete are noticed in conventional flooring during its service period. To overcome the deficiencies of conventional concrete flooring, a system is devised to improve the properties of such concrete floors. The system by virtue of its uniqueness is known as vacuum dewatering concrete in which surplus water (or excess water) from fresh concrete is removed to improve strength, durability, and other properties of concrete by reducing the water-cement ratio (to the optimum level) immediately after the mix is placed, usually in floors and other flooring purposes.

The VDF system is an effective technique used to overcome this contradiction of opposite requirements of workability and high strength. With this technique, both these workability and high strength are possible at the same time. The system is workable for laying high quality concrete floors with superior cost effectiveness to achieve High strength, Durability, Longer Life, Better Finish and Faster Work.

 Need of Vacuum Dewatered Flooring

There are certain fundamental requirements due to which the vacuum dewatered flooring is preferred to be adopted in large scale flooring work in railway platforms, industrial floors, 

Technical Specification

• The uncontrolled removal of water from the concrete matrix can result in adverse effects such as plastic shrinkage cracking.
• Excessive bleeding of concrete can negatively interfere with surface characteristics such as resistance to wear.
• It renders an economical, time-efficient compaction technique to concrete that can be placed on a medium to high workability.
• The water added to a concrete mix generally exceeds the optimum required amount of water required to fully hydrate the cement constituent.
• The additional water functions as a lubrication medium to allow mixing, placing and consolidation.
• In conventional concreting practice, an important challenge is the prevention or limiting of evaporation of mixing water out of the freshly placed concrete.
• In hot and windy conditions it produces concrete of high quality & durability.