Trimix / VDF flooring
Trimix Flooring
Trimix flooring is the name many builders, architects and site engineers in India use for vacuum dewatered flooring (VDF). It is a concrete floor laid in one sequence — placed, levelled, vacuum dewatered, power-floated and trowelled — so the wearing surface ends up denser and harder than a conventionally finished slab. ASVDF Flooring lays Trimix floors from its registered office in Shamshabad, Hyderabad, with project delivery all over India.
Why it is called Trimix
The word comes from Tremix, a Swedish maker of vacuum dewatering equipment whose name became shorthand for the method on Indian sites. Over time “Tremix” and “Trimix” came to mean the whole floor system, whichever brand of vacuum pump and mats is used.
So when a tender, BOQ or enquiry asks for Trimix flooring, VDF flooring, vacuum dewatered flooring or vacuum densification flooring, it is asking for the same kind of floor. The specification that matters is the concrete grade, slab thickness, finish, joints and curing, not the label.
How a Trimix floor is laid
Every step depends on the one before it, so the crew, the vacuum unit and the finishing equipment have to be on site together for each pour.
- Base and formwork — the compacted sub-base, any membrane and the bay shuttering are set to level, with reinforcement and dowels in place as designed
- Placing and levelling — concrete of the specified grade is placed bay by bay and compacted and struck off with a vibrating screed
- Vacuum dewatering — filter pads and suction mats go onto the fresh concrete and the vacuum pump draws out surplus water, lowering the water–cement ratio near the surface
- Power floating — once the slab can take the machine, a power float with a disc flattens the surface and closes the pores
- Hardener (if specified) — a dry-shake floor hardener is broadcast and worked in during floating for higher abrasion resistance
- Power trowelling — repeated passes with trowel blades produce the dense, smooth industrial finish
- Joints — contraction joints are saw-cut once the concrete can be cut cleanly, then sealed or filled later as specified
- Curing — the slab is kept moist or sealed with a curing compound for the full curing period before it takes traffic
What Trimix flooring gives you
Removing surplus water from the top of the slab is what makes the difference. The surface layer has less free water to leave voids behind, so it is stronger and less porous. In practice that means:
- Higher surface strength and better abrasion resistance under forklifts, pallet trucks and trolleys
- Less dusting than a slab finished with bleed water still on the surface
- Lower drying shrinkage near the surface, which helps limit surface cracking
- A level, smooth finish that suits racking, material handling and easy cleaning
- Walkable sooner after finishing than a slab left to bleed and set on its own
Where Trimix floors are used
Trimix is chosen for large, hard-working concrete floors rather than decorative finishes. Typical projects include warehouses and logistics parks, factory and plant floors, automobile workshops and showrooms, cold storage and food processing areas, commercial basements and parking decks, and loading bays.
Where a floor also needs chemical resistance, strict hygiene or a coloured seamless finish, a Trimix slab is often the base for an epoxy or PU coating applied after curing.
Warehouse flooringIndustrial flooringEpoxy over a Trimix slab
Getting a Trimix flooring quotation
Trimix flooring is priced per square foot or square metre, but the rate depends on area, slab thickness, concrete grade, reinforcement, hardener, joints, site access and location. Share the city, approximate area, building type and any drawings or BOQ. Call or WhatsApp +91 90632 22804, email asvdfflooringpvtltd@gmail.com, or use the contact form, and we will come back with a recommendation and quotation for your site.
