It is quite common to build a self-built house in rural areas. In the past, when many villagers built a self-built house in rural areas, they would stick tiles on the external wall of the self-built house, which would make the appearance of the self-built house look much better. However, the tiles on the external wall are easy to fall off and the later maintenance is very troublesome. The contractor said that the external wall construction of the self-built house in rural areas now uses pure cement mortar, which is cheap and beautiful!
1: Advantages of pure cement mortar
The advantages of pure cement mortar are high strength and durability, and it is not afraid of moisture, so it is generally used in underground masonry. The disadvantages of cement mortar are poor consistency and high cost.
second: how to prepare pure cement mortar?
First of all, pure cement slurry is the slurry mixed with cement and water, while 1: 1 cement mortar is the mortar mixed with 1 part cement and 1 part sand according to the volume ratio; As for the 1: 1 cement mortar plastering and pure cement caulking, they are two materials of two construction technologies. The 1: 1 cement mortar is the material used on the cement floor or cement wall surface, while the pure cement caulking is the pure cement slurry used for caulking after pasting the floor tiles, wall tiles and other plate materials.
Mortars made of cement, fine aggregate and water, as well as lime, active admixture or additive added as required, are divided into cement mortar and cement mixed mortar.
The so-called 1: 3 cement mortar is composed of 1 unit weight cement and 3 unit weight sand, which actually ignores the composition of water. Generally, the ratio is about .6, that is, it should be 1: 3: .6, and the density of cement mortar is 2 kg/m3.
Third, how to renovate the external walls of rural self-built houses?
1. Shovel off the old bricks and renovate the new tiles
The step of renovating the old tile wall is to ask a special brick-knocking demolition team to knock out and remove all the old tiles first, and then repair and level up the damaged parts, and do a good job of grassroots treatment before starting to make new tiles. The advantage of this renovation method is to remove the old tiles, which can prevent the sequelae that may be caused by the wall. To put it bluntly, it is equivalent to re-pasting the tiles on the new wall. However, this renovation method needs to remove the old tiles, which is time-consuming, labor-consuming and money-consuming, and it may damage the wall in the process of demolition.
2. Paste new tiles directly on the original old tiles
First, remove the tiles with serious bulging or damaged walls, then repair them with putty, and then use special treatment agent or interface agent on the surface of the old tiles. After treatment, you can directly paint and spread new wall tiles on the surface of the old tiles. Laying new tiles directly without removing old tiles saves construction time and cost. However, this method requires high quality of materials and construction, and once it is improperly operated, it is very easy to appear dangerous phenomena such as empty drum and falling off in the future. Furthermore, the thickness of the wall will become thicker, which may cause a sense of disharmony with the original window lines and components.
3. Paint on old tiles
Renovating old and new tiles with paint is the darling of renovation in recent years. The coating construction is safe and convenient, and it can also customize the personalized exterior wall, and it can also achieve the coating effect that ceramic tiles can't achieve. Before using paint to renovate, first check the wall surface, repair the damaged tiles, then use special tiles to renovate putty, and follow the paint construction process. According to the desired effect and budget, the exterior wall paint can be selected from real stone paint, liquid granite paint, texture paint and latex paint.
four: how to buy cement for rural self-built houses?
1. From the perspective of packaging,
Everyone must buy cement from big manufacturers, generally good cement, and the logo of the outer packaging will be clear, and the manufacturer's information will be complete, including the implementation standard, packaging date, net weight, factory number, registered trademark, etc. It also depends on whether the seal is sealed tightly. Generally, the sealing edge is round and closed.
2. From the color point of view,
Generally, the color of cement is dark gray or dark green. If it turns yellow or white, it means that the strength of the cement is unqualified.
3. From the perspective of texture,
When choosing cement, you must open it and have a look. Good cement is powdery, and bad cement is caked, so if you see caked cement, you must not buy it.
4. Judging from the date,
The storage date of cement is generally 3 months, and it should be stored in a cool and dry place. When you see expired cement, don't buy it blindly because it is cheap, especially if it is more than 6 months. This kind of cement will often have serious consequences after being bought and used at home.
If friends plan to build their own houses in rural areas in the New Year, they should stop putting up tiles when the external walls of rural self-built houses are constructed, which has been out of date for a long time. Choose pure cement mortar, the cost is relatively low, the construction is simple, and the durability is high, and the later maintenance is much simpler!