Grinding skills of cement floor:
1, ground waxing and polishing cement floor
Method of polishing and waxing cement floor: For the new floor with good light reception, cement floor polishing wax can be directly coated on the floor evenly, and then polished with a floor polisher and a cleaning pad. The polishing area should not be too large each time. When there is luster and no scratches, the next area can be polished until the floor waxing and polishing treatment is completed. For the wear, dust accumulation, potholes and cracks of the old cement floor, it is necessary to polish them with a ground grinder, and wax and polish them after the potholes and cracks are filled up. The method is the same as before.
Advantages and disadvantages of waxing and polishing cement floor: Advantages: convenient and fast construction, obvious effect, waterproof and antifouling.
Disadvantages: short holding time, poor anti-skid effect, easy to get dirty after long-term use. 2. Change the polishing of cement floor to permeability evaluation.
The grinding of cement ground is transformed into the method of infiltrating the ground: for the new cement ground with good light reception, the concrete sealing curing agent can be directly sprayed evenly on the ground, and then the ground is kept wet with a brush and wool head for about 1 hour, and then cleaned with clear water for grinding. For the defective old ground, it is necessary to repair pits and joints to control oil pollution. , and then before spraying the concrete sealing curing agent, grind and polish it for the next construction.
Advantages and disadvantages of transforming cement ground into permeable ground by polishing: Advantages: quick and convenient construction, high hardness, good wear resistance, pollution resistance and long service life. Disadvantages: to achieve high brightness, you need to go through many polishing treatments.
3. Crystallization treatment of cement floor polishing
The method of polishing and crystallizing cement ground: firstly, the ground is roughly ground with a ground grinder, then polished, and dried after the ground has a certain luster. Spray the ground crystallized agent on the square floor of 1 m2, and polish it left and right with a crystallizing machine with steel wool and scouring pad until a uniform high-gloss floor appears, and then move to the next area. In this way, until the building area is used up. For the defective old cement floor, corresponding repair treatment is needed.
Advantages and disadvantages of polishing and crystallization treatment of cement floor: Advantages: high surface hardness, good gloss, antifouling, waterproof and wear-resistant. Disadvantages: the construction time is long and needs polishing.
Cement ground maintenance knowledge:
1, selection of maintenance mode
After the concrete floor is laid, the maintenance shall be started immediately. All kinds of concrete floors laid by machinery should be sprayed with curing agent and covered with moisture for curing. In rainy days or when there is sufficient water for maintenance, wet maintenance methods such as covering moisturizing film, geotextile, geotextile, sacks, straw bags and straw curtains can also be adopted. Water sealing maintenance method is not suitable.
2, covering plastic film curing
The initial curing time of covering plastic film should be based on not crushing the meso-anti-sliding structure.
The film thickness should be appropriate, and the width should be greater than 600 mm. When two films are butted, the lap width should be not less than 400mm, and the film should always be completely covered when curing. 3. Covering and curing
Moisturizing film, geotextile, sack, straw bag, straw curtain and other coverings should be used for moisturizing and curing, and water should be sprayed in time to keep the concrete surface moist all the time, so as to determine the number of times of water spraying every day. Moisturizing film is a new maintenance material and method developed in China in recent 200 years. The bottom is a water-absorbing and moisturizing film, and the top is a black heat-absorbing and waterproof plastic film, which has good heat preservation and moisturizing effect. In the area where the temperature difference between day and night is greater than 10 degrees or the construction ground where the daily average temperature is not greater than 5 degrees, heat preservation and moisture preservation measures should be taken.
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