First, how to remove cement mortar
1. When using plastic film to spray water for maintenance, you must remember to spray water in time. The frequency of spraying water should be determined according to the weather conditions, so as to ensure that the covering is always wet during the curing process. Sprinkle water 1 2 times a day on cloudy days and 2-3 times a day on sunny days. Workers are not allowed to step on the anti-skid structure of the ground when laying plastic film on the road, and people, livestock and vehicles are not allowed to step on the ground.
2. When the plastic film is used for curing, its thickness must be appropriate. At the seam of two films, the seam length should not be less than1m. Plastic film must be tightly covered on the ground in the field to prevent hanging from being blown up by the wind.
3. The curing method of spraying curing agent is adopted, and the spraying thickness of spraying agent must ensure curing and film formation. Spraying agent should meet the water retention rate of 85%. If the water retention rate is unqualified or the curing agent that affects the setting strength of cement cannot be used.
4, cement concrete ground paving, should be timely maintenance. In the early stage of curing, in order to prevent the cement concrete from sun and rain, it is best to spray curing agent or use plastic film for ground curing. Of course, you can also use old sacks, straw bags and other sprinkler maintenance methods that can store water
Second, what is cement mortar?
1. Cement mortar consists of cement, fine aggregate and water, that is, cement+sand+water. Cement mixed mortar consists of cement, fine aggregate, lime and water. They are different concepts with different names and uses.
2. The so-called 1: 3 cement mortar is composed of 1 weight cement and 3 weight sand, which actually ignores the composition of water. Generally, the ratio is about 0.6, that is, it should be 1: 3: 0.6, and the density of cement mortar is 2000Kg/m3.
3. Mortar used in the construction process is generally mixed on site for the convenience of construction. The mixture ratio of cement mortar is 1:3, which refers to the weight ratio, and then it is converted into the volume ratio according to the capacity of the on-site mixer or material container; Mortars used in structural construction are mostly finished mortar, expressed by mortar strength, such as M5, M7.5, M 10 mortar, etc.
3. What are the cement brands?
1, Conch is a product of Kang Hui Conch Co., Ltd. Since its establishment, it has been specialized in the production and sales of cement and commercial clinker. At present, it is the largest supplier of cement and clinker in Asia, ranking first in China in 1 1 and one of the top ten cement brands in China.
2. Deng's Cement is a well-known trademark in China and one of the top ten brands. As a product of Tangshan Jidong Cement Co., Ltd., the new dry-process cement clinker developed by Deng has been in the top ten in China. The company has many honorary titles and is also one of the most famous brands in China building materials industry.
3. The product of Beijing Jinyu Co., Ltd. is a famous trademark in Beijing, and it is also one of the largest building materials manufacturers in China, a large nonmetallic mine industrial company. At present, it is also a well-known large-scale building materials manufacturer with the most competitive strength in the domestic building materials and hardware industry.
The content introduced above is about how to remove cement mortar and what is cement mortar. I believe many friends will understand after reading it.