The use of self-leveling cement stone guarantees the basic guarantee of the construction quality and decoration effect of the coil floor. Due to its importance, construction must be strictly followed.
First, the basic ground requirements:
Cement-based ground should be clean, dry and flat. details as follows:
1 Can not empty shell between cement mortar and ground
2 Cement mortar surface can not have sand, the mortar surface is clean
3 The cement surface must be smooth and the difference between the height and the height within two meters must be less than 4mm.
4 The ground must be dry and the moisture content measured with a special tester should not exceed 17 degrees.
5 The strength of grass-roots cement shall not be less than 10Mpa.
Second, the preparation before construction:
Before the self-leveling cement is applied, the ground surface must be ground with a grinding machine to remove impurities, dust and sand from the ground. Raise the ground that is partially high. After grinding, dust is removed and sucked clean with a vacuum cleaner.
Before cleaning the ground, self-leveling cement must be treated with a surface treatment agent, dilute the treatment agent as required, and use a non-hair removal wool roll to spread the surface treatment agent evenly on the ground in the direction of the first horizontal direction. Make sure to apply evenly without leaving gaps. After the coating agent is applied, the construction of self-leveling cement can be performed after waiting for a certain period of time according to the different product performance of the manufacturer. The cement surface treatment agent can increase the self-leveling cement adhesion to the ground and prevent shelling and cracking of the self-leveling cement.
Third, self-leveling:
Prepare a sufficiently large bucket, add water in accordance with the water-cement ratio of the self-leveling cement manufacturer, and mix the self-leveling thoroughly with an electric mixer. The stirring is carried out twice, usually for about 5-7 minutes for the first time, with a pause of 2 minutes in the middle to let it react, and then for about 3 minutes. Stirring should be thorough, no block or dry powder can appear. The stirred self-leveling cement must be fluid.
The well-mixed self-leveling cement should be used within half an hour. Pour the self-leveling cement on the ground and use a toothed forceps to pry open the self-leveling material and apply it to different sizes according to the required thickness. After its natural leveling, it is rolled up and down on the top with a toothed roller to release the gas and prevent air bubbles. Special attention should be paid to the formation of a self-leveling cement lap.
According to the phenomenon of different temperature, humidity and ventilation, self-leveling cement can be thoroughly dried after 8-24 hours, and can not be used for further construction before drying.
Fourth, fine grinding processing Perfect self-leveling construction can not be separated from the grinding machine, self-leveling construction is completed, the self-leveling surface may also have small air holes, particles and floating dust, the door and the corridor may also have high and low, these conditions are Grinding machines are needed for further refinement. After grinding, use a vacuum cleaner to clean the dust
First, the basic ground requirements:
Cement-based ground should be clean, dry and flat. details as follows:
1 Can not empty shell between cement mortar and ground
2 Cement mortar surface can not have sand, the mortar surface is clean
3 The cement surface must be smooth and the difference between the height and the height within two meters must be less than 4mm.
4 The ground must be dry and the moisture content measured with a special tester should not exceed 17 degrees.
5 The strength of grass-roots cement shall not be less than 10Mpa.
Second, the preparation before construction:
Before the self-leveling cement is applied, the ground surface must be ground with a grinding machine to remove impurities, dust and sand from the ground. Raise the ground that is partially high. After grinding, dust is removed and sucked clean with a vacuum cleaner.
Before cleaning the ground, self-leveling cement must be treated with a surface treatment agent, dilute the treatment agent as required, and use a non-hair removal wool roll to spread the surface treatment agent evenly on the ground in the direction of the first horizontal direction. Make sure to apply evenly without leaving gaps. After the coating agent is applied, the construction of self-leveling cement can be performed after waiting for a certain period of time according to the different product performance of the manufacturer. The cement surface treatment agent can increase the self-leveling cement adhesion to the ground and prevent shelling and cracking of the self-leveling cement.
Third, self-leveling:
Prepare a sufficiently large bucket, add water in accordance with the water-cement ratio of the self-leveling cement manufacturer, and mix the self-leveling thoroughly with an electric mixer. The stirring is carried out twice, usually for about 5-7 minutes for the first time, with a pause of 2 minutes in the middle to let it react, and then for about 3 minutes. Stirring should be thorough, no block or dry powder can appear. The stirred self-leveling cement must be fluid.
The well-mixed self-leveling cement should be used within half an hour. Pour the self-leveling cement on the ground and use a toothed forceps to pry open the self-leveling material and apply it to different sizes according to the required thickness. After its natural leveling, it is rolled up and down on the top with a toothed roller to release the gas and prevent air bubbles. Special attention should be paid to the formation of a self-leveling cement lap.
According to the phenomenon of different temperature, humidity and ventilation, self-leveling cement can be thoroughly dried after 8-24 hours, and can not be used for further construction before drying.
Fourth, fine grinding processing Perfect self-leveling construction can not be separated from the grinding machine, self-leveling construction is completed, the self-leveling surface may also have small air holes, particles and floating dust, the door and the corridor may also have high and low, these conditions are Grinding machines are needed for further refinement. After grinding, use a vacuum cleaner to clean the dust
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