Key points of cement mortar ground construction technology? What are the details of cement mortar ground construction?

The construction of the ground is more important. However, in order to decorate the ground in the future, many people will understand the construction technology of cement mortar ground and then decorate the ground. Then let me introduce the key points of cement mortar ground construction technology. What are the details of cement mortar ground construction? The quality of cement mortar floor construction will directly affect the decoration quality of the whole floor and cause a lot of inconvenience to future life. Therefore, the ground construction is more important. However, in order to decorate the ground in the future, many people will understand the construction technology of cement mortar ground and then decorate the ground. Then let me introduce the key points of cement mortar ground construction technology. What are the details of cement mortar ground construction?

Key points of cement mortar ground construction technology?

1, base surface should be dense and smooth, and there should be no unevenness and sand. Loose cinder, cement concrete and cement mortar on the surface of cushion should be cleaned, and if there is oil pollution, it should be cleaned with caustic soda solution. The day before the cement mortar is laid, water should be sprayed to keep the surface moist, which is beneficial to the solid combination of the surface and the base. The next day, brush a layer of cement slurry bonding layer with water cement ratio of 0.4 ~ 0.5, and then pave the pavement. If the cement paste bonding layer is painted too early, it will not be able to bond with both the base and the surface.

2, cement mortar appropriate USES mechanical mixing, according to the proportion of feeding, measurement should be correct, strictly control the water consumption, mixing time should not be less than 2min, mixing should be uniform, consistent color. Before laying cement mortar, a layer of cement slurry should be painted on the surface of the base as the bonding layer, and the water cement ratio is 0.4? 0.5, besmear brushs evenly, increases with the increasing brush shop.

3, after paving cement mortar, vibrating. And do a good job of leveling and calendering the surface, but you must master that cement mortar should be leveled before the initial setting of cement and calendered before the final setting.

4. When the cement mortar begins to solidify, that is, when people set foot on footprints but don't sink, use a steel trowel to press it for the second time, requiring no pressure leakage, and flatten the pits and sand holes. When the cement mortar is solidified, that is, when people step on it with a little footprint but no trowel, press it with a steel trowel for the third time, and flatten, compact and polish the trowel left in the second time. When calendering with a ground grinder, the hardness of cement mortar should be slightly dry during the second and third pressing.

When plastering the cement mortar surface, the drying humidity is not suitable, so measures should be taken: if the surface is slightly dry, it should be watered and calendered; If it is really difficult to collect water on the surface due to a slightly higher water-cement ratio, dry-mixed cement and sand can be sprinkled for grinding, and the volume ratio is 1: 1 (cement: sand). The sand needs to be screened by 3mm, but it should be evenly distributed.

6, cement mortar surface in case of pipeline and other local surface thickness thinning to below 65438+/-00 mm, measures must be taken to prevent cracking, generally placed along the pipeline steel mesh, or meet the design requirements before laying the surface.

What are the details of cement mortar ground construction?

1. First, sweep the dust off the base, brush it off with a wire brush and chisel, remove the mortar skin and ash layer, brush off the oil stains on the base with aqueous caustic soda solution, rinse the lye with clear water in time, and soak the ground with water one day in advance.

2. According to the horizontal control line of+1.0m on the wall, measure the surface elevation downwards and bounce it on the wall. Then, according to the horizontal line of the surface elevation, determine the thickness of the surface mortar. If it is found that the floor is too thin (below 50px) or too thick (above 125px), it will be adjusted, and the adjusted elevation will be marked with fixed paint in public parts before pulling. 125px), vertical and horizontal spacing 1.5 ~ 2.om, and the upper surface of ash cake is the ground elevation of cement mortar building.

3, mixing mortar. The volume ratio of cement mortar is 1: 2.5 (cement: sand), its consistency should not be greater than 35m, and its strength grade should not be lower than M 15. In order to control the amount of water added, it should be stirred with a blender with the same color. Before laying cement mortar, brush a layer of cement slurry with water cement ratio of 0.4-0.5. Don't brush too much area, brush with pavement mortar.

What are the technical points of cement mortar ground construction I introduced? What are the details of cement mortar ground construction? Let us know more about the problems existing in cement mortar floor. Moreover, it is inevitable for the owners to know more about some small details in the decoration, so that the decoration effect of our house can be better and the decoration quality of the decoration personnel can be guaranteed.