What is VDF flooring?/What is Tremix flooring?

 1. What is VDF or trimix flooring?

VDF stands for Vacuum dewatering concrete flooring. This is a special type of flooring in which the extra water present in the concrete is removed with the vacuum pump after the vibration. This technique helps to enhance compressive strength, tensile strength, and abrasion resistance in flooring.  This process helps to achieve the required quality in the concrete.

The concrete used in making the flooring is not less than M20 grade. The trimix flooring surface has a good finished surface & longer life.

2. What is the thickness & ratio of trimix flooring?

The thickness of trimix floorings is kept between 100mm. to 200mm. depending upon the purpose & load conditions. Usually, 150mm. thickness is maintained for industrial purposes.

The concrete grades used in such types of floorings are M20, M25, & M30. The common grade is M20 i.e. 1: 1.5:3 ratio.

 3. What is the procedure for making trimix flooring?

1. Preparation of flooring base.

2. Laying guide rails at regular intervals at required levels. Usually, MS channels at 4m. intervals are installed by using a lineout string & leveling tools.

3. The concrete is poured in between the channel frames & leveled.

4. The concrete is compacted by using needle vibrators at the time of leveling.

5. Surface vibration is done by using double-beam screed vibrators running over the channel rails. This helps to achieve maximum compaction.

6. Lower & top mat layers are spread over the green concrete.

7. Dewatering vacuum pump is attached to these layers to suck the surplus water.

8. This process is continued until stiff concrete is produced.

9. Power floater will be run over the surface to make a highly compacted floor level, having no lines or ribs.

10. Final finishing is done by using a power trowel to achieve a smooth & even surface.

11. Expansion joints are provided at required intervals while doing this flooring process. Groove-cutting machines are used for this purpose.    

4. What are the pros & cons of trimix flooring?

Pros:

1. Trimix flooring has good compressive strength when compared to normal concrete flooring.

2. It has a good finished surface. 

3. It enhances the abrasion resistance of the floor.

4. No shrinkage cracks. 

5. Reduces the permeability of concrete due to higher compaction.

Cons:

1. The working cost will be more when compared to regular PCC flooring.

2. Requires specific machinery & equipment to complete the flooring work.

3. Needs skilled workers for vacuum dewatering & screeding works.

5. Where we can use trimix flooring?

Trimix floorings are made in such areas where there is a chance of higher wear & tear due to rough use of the space.

So, trimix floorings are mostly used in warehouses, industrial units, commercial centers, loading & unloading platforms, godowns, etc.

For more such explanatory articles, click here.

Thank you for going through this article❤. Have a good day 😄.

Share: