By using a floor grinder, the emery floor is composed of high-grade special cement, non-metallic mineral aggregate (or metallic mineral aggregate) and a variety of special additives. The colors are: natural, gray, green, red, yellow, etc.
The emery floor is made by mixing emery or other aggregates in the cement or concrete pouring process and solidifying as a whole. Because of the high hardness of aggregates such as emery, the hard texture is hard, wear-resistant, flat and seamless. However, since any ground has a useful life, after long-term use, under the effects of ageing, weathering, and external forces (friction, impact), the emery ground will become ash, sand, hollow, cracks, holes, damage, etc., which is also the reason why the curing process is widely used in emery floors by floor grinder.
The construction process of emery solidified floor:
Concrete foundation pouring→levelling→spreading emery→mechanical buffing→rolling curing agent (curing)→tempering
Specific steps:
1. Pouring of the concrete foundation
First, clean up the grassroots level without loose particles and garbage. For example, the sand-gravel cushion should be wetted with water.
Second, the large-area concrete floor is poured in separate silos, and the mixed concrete is paved and compacted in sequence.
Spread emery
2. Construction of emery surface
(1) Construction conditions and time: the concrete is poured according to the design elevation, laser levelled, and about three hours after finishing, that is, when the concrete initially sets, construction will begin. The timing of the application of emery hardener varies with factors such as climate, humidity, concrete mix ratio, etc. Spreading too early will cause the hardener to sink in the concrete and lose its effect; spreading too late will cause the concrete to solidify and lose its adhesion, causing Wear-resistant materials cannot be combined with it and cause peeling.
(2) Moisture in the corners of walls, columns, doors and templates will disappear quickly and should be spread first;
(3) The dosage standard of emery: 5kg/m2;
(4) First time spreading: Spread 2/3 of the specified amount of emery material evenly on the surface of the concrete according to the marked plate area. After the material absorbs water and the color becomes gray, smooth it with a polisher to make the material and the base layer The concrete is joined together, and the corners are smoothed by hand;
(5) Spread the second time: Spread the remaining material on the surface of the concrete according to the above method, with the direction perpendicular to the first time, and then carry out the second time of smoothing;
(6) Then when the surface layer is hardened to a little sagging of finger pressure, use a polisher to collect the light repeatedly until it is completed. The speed and angle of the polisher are adjusted according to the hardening situation;
Concrete finish
(7) Curing: 6-8 hours after finishing polishing, apply a special curing agent for curing. After 24 hours, water twice a day for 10 days for maintenance to avoid drying of the surface layer and cause cracking;
(8) Two to five days after the completion of the construction, according to the designed spacing, use an expansion joint cutter to cut the expansion joints. The spacing of the expansion joints is generally 6-8m, and the position should be aligned with the cushion deformation joint or at the column axis. The depth is at least 1/3 of the thickness of the concrete, a rectangle or diamond is cut around the column, and the joints are filled with asphalt or special joint sealant.
3. Curing construction
Construction conditions: 15 days after the emery construction, after the concrete base layer is dry, dust removal and crack repair on the emery ground, use the platinum crystal floor system-curing construction process to do grinding and curing treatment for the emery ground.
(1) Rough grinding: After cleaning and inspecting the ground garbage, use a multifunctional floor grinder to polish the ground to remove the soft and weak parts of the original ground to expose a clean surface.
(2) Concrete seal curing agent penetration: use concrete curing agent to cure the emery floor for 24 hours, spray the curing agent evenly on the emery floor, and carry out the next process after the curing agent is dry.
(3) Cleaning the base surface: After completing the procedure 2 to 4 hours after construction, wet and clean the ground. (Using the penetrating power of water to bring the material into a deeper layer, preventing the reaction residue from forming white spots that are difficult to clean.)
Water mill cleaning after hardener treatment
(4) Fine grinding: Use Maxkpa multifunctional floor grinder to grind the ground, and grind it comprehensively 2 to 3 times (you can use clean water for moistening treatment and then grind or grind directly with water), and perform preliminary polishing on the overall base surface. In order to eliminate the traces left by rough grinding, weak light has appeared on the ground after fine grinding.
(5) Preliminary polishing: Use Maxkpa multifunctional floor grinder to perform preliminary polishing on the emery.
(6) Comprehensive polishing: Use Maxkpa high-speed polishing machine to comprehensively polish the emery floor.
Concrete polishing
Finished effect
(7) Expansion joint repair:
a) Use Maxkpa industrial vacuum cleaner to clean the expansion joints to ensure that the gaps are dust-free;
b) Inlaid expansion joint foam strips to meet the expansion and contraction conditions of the expansion joint;
c) The expansion joints are repaired with a special joint sealant that is close to the color of the floor, and the residual joint sealant on the edge of the expansion joint is cleaned up, which has reached the overall aesthetic requirements.
After treatment by floor grinder, the emery solidified floor is wear-resistant, pressure-resistant, antifouling and dirt-resistant, and does not contain sand or dust. It can effectively solve the quality problems that often occur in the concrete surface, such as dust, drum, and cracks, and it is very easy Clean, can be used in places with high wear-resistance and dust-proof requirements, such as parking lots, industrial plants, warehouses, and places where uniform colors are required to improve the working environment and beauty.
Publication Date: 26 February, 2021
Category:
Concrete Floor Grinder
