Concrete floor Polishing and densification

 

 1 FM 2 Flooring (TR-34, Laser Screed) SLIP MEMBRANE: Providing & Laying One layer of LDPE sheet of 200 Microns thick approved quality on leveled sub-base surface of flooring with overlapping of 150 mm on longitudinal direction & 300 mm on transverse direction joints as per direction of Engineer in charge, etc Complete.

2 Laying & Finishing Floor (Laser Screed Flooring): Levelling & compacting using Laser Screed Machine & finishing concrete surface, smooth using Ride-on trowels complete in large panel size to floor tolerances FM 2 as per TR 34 4th edition, carry out flatness by using Hydraulic Ride On trowels, bump-cutter and check rod, etc. including all tools & other equipment like Beam screed, special formwork, Timber Formwork with steel 'L' angles, imported tools for flooring, complete workable RMC with a slump of 140-150 mm at the site, in panels of approved size as per approved drawing and as directed by the Engineer in charge.

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3 Non-metallic Floor Hardener (NORMAL GREY): Supply & Spreading of Non-Metallic dry shake floor hardener, based on a dosage of 4 kg per Sqm. complete with the help of semi-automatic mechanical spread all as per manufacturer's recommendations and as directed by the Engineer. (Make BASF /SUPERFLEX -Euclid CHEMICALS/Sika).

4 PLATE DOWELS FOR CONSTRUCTION JOINTS: Providing &proper fixing of Supply of 100 x 100 x 6mm thick diamond dowels with PVC sleeves 600mm c/c spacing, including providing & fixing PVC sleeve at one end, etc. complete all as per specification & as directed by the Engineer or Equivalent.

5 CURING PLASTIC SHEET & WATER: Curing with laying of plastic sheet for curing of concrete floor surface for a minimum curing period of 10 Days. The sheet should be laid after spraying of water and with adequate overlaps. 

6 Control & Construction Joints: Providing and filling grooves with PU (Shore A Hardness 30-45) based sealant of BASF MasterFlex 474 or Euclid Chemicals Eucolastic 1NS in construction joints & controlled joints and other situations were shown in the drawing. top 10mm of section filled by sealant and below followed backer rod & sand. The rate includes the cost of all ancillary works as required, as per specifications and as recommended by the manufacturer, and as directed by the Project Manager 4 x 65 mm sectional control joint size & 4 x 15 mm construction joints

7 Isolation Joints-Wall: Providing & proper fixing of 10 mm thick compressible board for isolation joints around wall supplied by Supreme, cutting and sealing the top 10 mm of the joints with BASF MasterFlex 474 or Euclid Chemicals Eucolastic 1NS as per manufacturers specification and recommendation.

8 Isolation Joints-Column: Providing & proper fixing of 20 mm thick compressible board for isolation joints around column pedestal supplied by Supreme, and cutting, filling of top 10 mm groves with BASF MasterFlex 474 or Euclid Chemicals Eucolastic 1NS as per manufacturers specification and recommendation. 

9 REFILLING OF JOINTS POST EXPANSION Refilling of Control & Construction Joints: Refilling of joints post maximum expansion, however no later than 18 months after completion of the floor. Cutting, cleaning & refilling of joints with high hardness sealant (Make - Fosroc Nitoseal 280, Euclid Euco 700 or equivalent) and grinding the surface edges to match floor levels. The rate includes the cost of all ancillary works as required, as per specifications and as recommended by the manufacturer, and as directed by the Project Manager a Control Joint: 6 mm x 20 mm filling b Construction Joints: 8 mm x 20 mm 

10 Steel Armoured Joints @ Construction Joint Steel Armour joints for Construction Joints: (up to 200 mm thick floor) Providing & proper fixing of Steel Armour joints with 8 mm thick anchorage dowels at day end joints, complete all as per our specification & as directed by the Engineer. Fixing of Armour Joints should be with height fixing Jacks.

11 DENSIFICATION, DUSTPROOFING & 5 STEP CONCRETE POLISHING: Providing dust proofing over concrete Flooring including cleaning & drying the base surface, applying with Liquid Densifier Including 5 Step Polishing the surface with resin pads using Polishing machines with Planetary motion before handing over, etc complete all as per manufacturer's recommendations and as directed by the Engineer.

Before starting concrete polishing, one thing that is important is the preparation of the ground to be polished. This entire process is called densification and dust proofing. In this blog, you will read about 5-step concrete polishing including densification & dust proofing. Our concrete is a porous surface and is always exposed to dirt & dust. So, to get a dust-proof floor, we have to densify & dust-proof the surface.

A concrete floor can look dull & dusty because of the fact that it is a porous surface.

This is a 5 step process of making a concrete floor look dustproof. In the present-day scenario, domestic and commercial construction projects are on the rise. In order to have a long-lasting and durable project, the contractors in the construction industry use concrete heavily. However, cement is very delicate and needs to be handled with care in order to get the required results. With the help of this blog, the readers are going to learn about some important steps of concrete polishing that will help to hold a long-lasting and durable concrete floor. CONSTRUCTION: Whether you are a home builder or in the business of construction, we seek to provide you with a hint of tips and solutions that would select you to take your project to a new height of success.

What is densification?.

Densification is a way to fill up the open spaces on a concrete surface. This is a method used by many people to cover up the existing floor’s imperfections. Though densification is applied to the concrete, it is important to have a good solid concrete surface to start with. The densification works by adding a resin and filler to the concrete surface and then the concrete is re-polished to give a smooth surface. A densifier is applied to the floor and then it is left for a few hours. During this time the densifier gets soaked into the concrete and fills up the open spaces. The floor is then polished and the process is completed. The densifier can be applied to the floor a few times. This will make the concrete even denser and will make it last longer. Densification works by filling up the open spaces in the concrete. This helps the concrete surface to be more durable. It also gives the floor a neat and professional look. Densification is the method used to keep the concrete flooring dust-free & dustproof, which is created by applying a liquid densifier to the floor. Applying liquid densifiers to the concrete floor, it creates a water-tight barrier between the concrete surface and the environment. It also preserves the floor by protecting it from water damage and staining. The densifier can be either oil-based or water-based but it is best to use a water-based densifier as it is more environmentally friendly than the oil-based densifier.

What are the benefits of densification?.

One of the key benefits of densification is that it extends the life of the polished concrete. Dust, dirt, and other contaminants are sealed into the pores of the concrete, making it difficult for them to penetrate the concrete surface. By densification, concrete becomes more durable, reducing the damage and thus prolonging the useful life of the surface. Densification is the process of preparing concrete surfaces for flooring or paving. It is a wet process using liquid densifiers which are chemical solutions that are applied to the surface of the concrete. Densifiers are applied to the surface of the concrete to make it porous so that the concrete can be polished to a high gloss finish ready for flooring and paving. The concrete floor surface can be densified using a number of densifiers, including liquid acrylics, solid acrylics, epoxy resins, and urethanes. Densification reduces the strength of the concrete, so it is only applied to concrete that is not needed to bear any load.

Conclusion: Densification is different than dust proofing.