FAQ

VDF is the Vaccume dewatered flooring. It is used in industrial buildings where in the flooring is subjected to huge abrasion. It is vaccum dewatered flooring. Used in high wear & tear areas such as roads, parking lots, dock storage areas where heavy vehicles move, and short time maintenance isn't desired. with mix of reinforcement layer & steel fibre, RCC surface becomes hard enough so as to not develope cracks in short time. Holding strength very good, long life and virtually maintenance free.

An IPS(Indian Patent Stone) Floor, is generally used over terraces in general, to achieve an economical and water sloping finish with a decent monolithic appearance....

However the IPS finish may even be used for other interior and semi-interior areas as the need may be, but in areas, where required structural strength by a floor would be more eg. Car Parks, Workshops and Driveways, a similar kind of a multi-layered flooring using lean concrete in a different proportion altogether may be utilised......Unlike IPS, a VDF floor calls for a more skilled labour with almost twice as many man hours over the same stretch..... This system raises the cost as there is machinery required, but appearance wise and strength wise the VDF (Vacuum Dewatered Floor) floor stands out......

The VDF is generally done with a base layer of lean concrete with suitable expansion joints executed with rubber or steel strips... Then a screed vibrator is run over the surface, supported on channel shuttering spaced 4.0 meters apart. The screed vibrator is run twice to achieve optimum compaction & leveling. After this a system of lower mats & top mat is laid on the green concrete & this is attached to a vacuum pump. This draws out excess water.

A high quality concrete floor or pavement requires not only to be level but it should also have high wear resistance, high compressive strength, reduced shrinkage, minimum water permeability and should be free of pores. The following paragraph explains the method and benefits of the process.

The Vacuum Dewatered (VD) Flooring method, is a system for laying high quality concrete floors with superior cost-effectiveness. The key to the use of this method is the dewatering of concrete by vacuum process surplus water from the concrete is removed immediately after placing and vibration, reducing the water-cement ratio to an optimum level. Therefore, adopting the VD flooring method facilitates use of concrete with better workability than what is normally possible. A lowered water to cement ratio due to vacuum dewatering leads to improvement in each of the properties of concrete properties listed above.

• Increased Comprehensive Strength.
• Reduced Maintenance Cost.
• Earlier utilization of floors.
• Increased water resistance.
• Minimum dusting.
• Lower water permeability due to denser concrete.
• Level Floor.
• Minimized crack formation.

Strongly entrenched with proven domain knowledge, experience and credentials, VDF Engineers is the Leading contractor for the Industrial Floorings:

• VDF Flooring Works
• Contractor Civil Road Work
• VDF Flooring Contractors
• Civil Contractors
• VDF Flooring Distributers
• Industrial Flooring Works
• Groove Cutting Works
• Industrial Flooring Dealers
• Groove Cutting Contractors
• Fall Ceiling Works
• Road Cutting Works
• Fall Ceiling Contractors
• Steel Bar Bending Works
• Epoxy Flooring Industrial
• Bar Bending Works
• Epoxy Flooring Contractors
• Cement Road Works
• Epoxy Coating Contractors

Concrete expands and contracts constantly with changes in the temperature, the moisture content of the air and due to drying of cement which results in shrinkage. The movements result in stress that can cause cracks in the concrete and destabilization of the base.

What is VDF Flooring?

The Vacuum Dewatered Flooring or VDF Flooring is a system for laying high quality concrete floors where the key is Dewatering of Concrete by Vacuum Process wherein surplus water from the concrete is removed immediately after placing and vibration, thereby reducing the water: cement ratio to the optimum level.

Vacuum Dewatered Flooring (VDF) is a special type of Flooring Technique to achieve High Strength, Longer Life, Better Finish and Faster Work. This type of floor is suitable for high abrasion & heavy traffic movement. TheVDF is a system for laying high quality concrete floor. Concrete Vacuum Dewatering System...

Procedure: In this system of VDF Flooring or Vacuum Dewatered Flooring, concrete is poured in place & vibrated with a poker vibrator especially to the sides of the panel for floor thickness more than 100mm. Then surface vibration is done using double beam screed vibrator running over the surface, supported on channel shuttering spaced 4.0 meters apart. The screed vibrator is run twice to achieve optimum compaction & levelling. The vibrated surface is then levelled using a straight edge.

After this 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. The concrete is left to stiffen. When the base concrete has stiffened to the point when light foot traffic leaves an imprint of about 3-6 mm, Floor Hardener is applied at an even application rate of between 3-5 Kg/Sqmt. Any bleed water should now have evaporated, but the concrete should have a wet sheen. The concrete is then further compacted and levelled using Power Floater followed by finishing as per the requirement using Power Trowel.

• Increased Compressive Strength
• Increased Tensile Strength
• Increased Abrasion Resistance
• Minimum Shrinkage & Floor Wraps
• Decreased Cement Consumption

• Warehouses, Godowns
• Roads, Sports Courts
• Factories, Car Parking Areas
• Production Areas
• Pharmaceutical Companies
• As the base floor for Epoxy & PU Floorings

Groove Cutting is cutting the laid concrete providing grooves of size 5mm wide and one third of the thickness of the concrete (or as required at site) within 48 hours of laying of the concrete to form bays of 4Mtrs X 4Mtrs using heavy duty cutting machine with diamond cutting wheel and filling of the grooves with appropriate sealant.

Concrete expands and contracts constantly with changes in the temperature, the moisture content of the air and due to drying of cement which results in shrinkage. The movements result in stress that can cause cracks in the concrete and destabilization of the base. Uncontrolled cracking can cause an uneven surface, which is subject to increased wear over time and water seepage, which can damage the substrate. Though cracking is almost impossible to prevent, it can be controlled. The use of specific types of control joints helps accommodate the movement of the concrete and avoid long-term damage. Making Grooves is one such method to insert contraction joints into slabs to guide cracks along a predetermined line. The purpose of the Groove Cutting is to weaken the slab along the approved line so that the slab cracks there instead of somewhere else. In order to be effective, the contraction joint must be at least one quarter as deep as the slab is thick.

In case of heavy load traffic, a Load Transfer mechanism is used. Load transfer devices prevent the cement slabs from shifting under heavy loads. Shifting can cause uneven slabs and breakdown in the joints. Dowels, load plates, or slots can be embedded into the concrete to act as load transfer devices. These devices are laid perpendicular to the construction joint, extending into both slabs across the joint. Their purpose is to distribute the load evenly between slabs thereby protecting the concrete along the joints.

Providing grooves of size 5mm wide and 25mm deep (or as required at site) to form bays of 4Mtrs X 4Mtrs using groove cutting machine with diamond cutting wheel and filling of the grooves with appropriate sealant.

VDF Flooring or Vacuum Dewatered Flooring or Tremix Flooring is a system for laying high quality concrete floors where the key is Dewatering of Concrete by Vacuum Process wherein surplus water from the concrete is removed immediately after placing and vibration, thereby reducing the water cement ratio to the optimum level.

VDF Flooring or Vacuum Dewatered Flooring or Tremix Flooring increases the Compressive Strength, Tensile Strength, and Abrasion Resistance and minimizes the Shrinkage and Floor Wraps. VDF Flooring results in High Strength, Longer Life, Better Finish and Faster Work. This type of floor is suitable for high abrasion & heavy traffic movement.

The full form of VDF Flooring is Vacuum Dewatered Flooring.

Laser Screed Flooring is the modern way to do the concrete flooring. This technique allows us to lay concrete floors in wider bays of any size. It drastically reduces Time, Labor, number of Construction Joints and eventually improves the flatness of floors. With this technique it is possible to lay concrete floors up to 3,000 Sqm per day.

It eliminates the need of fixing guide rails to every 4 meters. Laser screed simultaneously cuts, vibrates and levels the concrete in a single pass. All these operations are controlled by laser transmitter, receivers and computer. So, manual errors are eliminated thereby giving us Zero Level Difference floor (Super Flat).

Jointless Flooring is a seamless flooring that means unboxed flooring for maximum extend.