Renovation knowledge quickly ask me the time for a song
What is the most missing in the 21st century? Talent! What is the most missing in the 21st century? time! It was slow, it is fast now, why? Because people lack time, no time to chat with their families, no time to go with the children to go outings ... where have you been all the time? Do not know, anyway, time is not enough. So, in order not to delay everyone's time, come 8 quick answers, just a song time. Quick question 1: interior plaster cracking mortar hollowing reason? A: The plaster cracking of the inner wall is a more complicated problem. It has a lot to do with the foundation, the performance of the plaster, the construction process and the maintenance. The main influencing factors are as follows: 1. The dry shrinkage of the plastering mortar is large; 2. The base material has a higher water absorption rate, which causes the mortar to lose moisture and reduce the adhesive strength and tensile strength; 3. The base material shrinks more, causing Plaster layer hollowing, cracks and masonry cracking; 4, substrate surface treatment is not complete, resulting in empty drum; 5, mortar, construction process and the substrate does not match the three; 6, mortar maintenance is not in place and so on. Q2 : How do I put tiles on the old wall? Answer: The base must be firm and smooth, dry, clean and free of oil. 1. For emptying, loosening of the base layer and protruding objects, it is necessary to remove the uneven surface and repair the uneven base surface firstly with polymer cement mortar. 2, the proportion of ingredients: According to the powder: water = 3.4:1 (weight ratio) 3, the order of ingredients: first pour the water into the mixing drum, then add the powder, and then stir with an electric mixer into a uniform powder without particles. Let it stand for 3 to 5 minutes and use it with a little stirring. 4. Operation method: (1) Apply the glue to the work surface with a toothed scraper, and evenly distribute it into a strip of teeth. Apply about 1m2 each time, then rub the tiles in the open room. (2) The size of the scraper should be selected to consider the flatness of the work surface and the degree of unevenness on the back of the tile; (3) If the groove on the back of the tile is deeper or the stone and tile are larger and heavier, double-side coating should be performed. That is, at the same time the working surface and the back of the tile are coated with mortar; (4) After the tile is completed, the next step of the caulking process must be performed after the mortar has completely dried and solidified (about 24 hours). Q3: Is floor heating harmful to human health? A: The harmful conclusions of the low-frequency electromagnetic field on the human body are not definitive, similar to the way that the brick-type big brother was originally attached to the ear, and it is harmful to the human body and affects brain cells. Today's mobile phones are becoming more popular, with dozens of calls a day, and it is rumored that electromagnetic radiation is harmful to the human body. However, research results show that there is not enough evidence to support this claim. The 50 Hz low-frequency electromagnetic field has no harm to the human body. There is no clear conclusion. Going to see those physiotherapy instruments, it is just the use of low-frequency electromagnetic fields around 50 to 100 Hz for physical therapy. When electric floor heating uses cement floor tiles, in order to increase the insulation of the floor, usually the electric conductor has a distance of about 4 centimeters from the ground. The maximum magnetic field strength on the ground will not exceed 15 microtes. This is also scientific data. Quick question 4: electric and electronic must be separate from it? A: The main difference between strong and weak electricity is the difference in use. Strong electricity is used as a power source and weak electricity is used for information transmission. In home improvement, strong electricity refers to electricity, such as lamps and television outlets, which have strong currents. Weak currents are weak currents such as telephone lines, network cables, and cable television. Simply speaking, it is the strong electric power that hits people. No sense is weak electricity. . Strong and weak electricity in construction can't be put in a wire tube, and strong electricity will interfere with the weak signal. Quick question 5: renovation of when and where to be waterproof paint brush, you need to brush a few times? A: Generally, the floor of the bathroom and the lower part of the wall need to be painted with a waterproof coating. The construction requirements for various types of waterproof coatings are different, and specific reference can be made to the waterproof coating used. Q6 : What is the ratio of tiled cement and sand? A: The ratio of cement to sand is 1 to 2, which is consistent with the relevant regulations of the state. If the proportion is reduced, more cement will increase the bond strength. When laying wall tiles, cement can be mixed in a ratio of 1:1. And sand, but this will increase part of the cost, so the cement must be prepared in advance. When laying tiles, the ratio of the two materials can be increased to 1 to 2 or 1 to 3 because most of the ground on the house requires cement. Mortars are levelled so that laying bricks does not require too much cement to provide a solid effect. At the same time, in order to prevent the cement from shrinking and causing large tensile stress and cracking the tiles, low-grade cement should be used. Q7 : How can the toilet be fixed on the floor and use screws? A: The general big brand of toilet installation method: put a latex ring on the sewage outlet at the bottom of the toilet (bought in the bathroom shop), and then aim at the sewage outlet on the floor, press it up, and then in the toilet The joint between the base and the floor tile is marked with glass glue. After 24 hours, the glass glue is dry, and then the toilet is used, which is no difficulty. Q8 : Often hear putty, what can be putty in the end? A: Putty (filled mud) is a kind of decorative material on the surface of a flat wall, and it is a kind of thick paste-like paint, which is an indispensable product before the paint is painted. Applied to the primer or applied directly to the object to remove the unevenness on the surface of the object. A small amount of lacquer base, auxiliaries, a large number of fillers and a suitable amount of coloring pigments are used for preparation. The pigments used are mainly iron red, carbon black and chrome yellow. Fillers are mainly heavy calcium carbonate, talcum powder and so on. The surface can be filled with recessed work surface, but it can also be scraped off on the entire surface, usually after the primer layer is dried, applied on the surface of the primer layer. It requires good adhesion and no cracks during baking. Listen to a song and learn some decoration knowledge. Sometimes we still need to stop and go slowly to live. Decoration construction knowledge Battery Operated Uv Light,Outdoor Uv Light,9 Watt Uv Lamp,Ultraviolet Germicidal Lamp Guangdong Kingrate Optoelectronic Technology Co., Ltd. , https://www.kingrateuv.com
