In the home improvement process, low-priced materials such as cement, sand, and caulking agent are most easily overlooked, but their quality is directly related to the quality and service life of the decoration. So are all products going to large shopping malls? In this regard, experts analyzed one by one and pointed out to everyone a good way to save money.
Conch Cement    Fuhuai Stone
Cement selection brand products
At present, building materials supermarkets, building materials markets, roadside stalls, and even the entrance to the community have cement sales, and it is quite convenient for people to buy cement. According to Wang Enlai, the manager of Yuanzhou Decoration Engineering Department, the current regular home improvement companies generally use drill cards, and Lafica's 32.5 cement. In the building materials market, a pack of 50 kilograms of bitumen cement costs about RMB 17-18; Lafarge Cement costs about RMB 22/pack. Building materials supermarket cement prices are generally 23 yuan/about.
Wang Enlai suggested that he should decorate himself. Cement should be purchased from regular supermarkets and brand products should be picked. To select the cement produced by regular manufacturers, we must pay attention to the date of production. Usually, the shelf life of cement is three months. “The closer, the better.†Wang Enlai explained that if the factory is longer, cement will unconsciously absorb air moisture, which will produce Different degrees of solidification may cause the cement to have insufficient adhesive strength and poor strength, which may lead to voiding and other phenomena.
Sand upholds three principles
In building materials supermarkets, sand screening is 5.96 yuan/40 kg. In the building materials market, 20 kg of sand is only used for 2 dollars. The price difference between the two is about 1/3. Isn't sand also necessary to choose branded products and buy them in building materials supermarkets?
"Normally sand will do it." Wang Enlai said that the election of sand has to look at three things: First, it depends on the size of the grain. Generally speaking, the effect of using "Zhongsha" in home improvement is better; the coarse sand is irregular and needs to be screened. Expensive, but too fine is not necessary. The second is to look at impurities. The less impurities, the better. If there are dirt, rotten leaves and other impurities, it will greatly increase the probability of emptying the tiles, and it is not strong. Third, we must look at the specifications. It is best to use the same sand specifications for the same project. Wang Enlai and Zhifeng Feng, decorating engineer of the industry, believe that the owners do not need to buy brand sand, they pay attention to these three selection principles and buy it outside their home community.
How much cement and sand do you need for a renovation? Jin Jiang said that the amount depends on the specific amount of work. If you choose a decoration company, the decoration company will provide sand and cement; if you buy it, generally speaking, decoration will use 1 to 1.5 tons of cement, cement and sand ratio is generally 1 to 2.5-1 to 3 ratio.
Grooving agent ordinary type is enough
Grafting agent is also called caulking agent and is mainly used to fill gaps in wall and floor tiles. The price of 5 kilograms of caulking agent also varies from 20 yuan to 80 yuan. Grafting agent is divided into two types: sand-free seaming agent and sand-sealing agent. It is understood that no sand seaming agent is suitable for seam widths of 1 mm to 10 mm, and sand seaming agents are suitable for slit widths of 1-12 mm or even wider, such as retro bricks. Sandless grouts have small particles and are resistant to scrubbing. Sanding grouts are relatively laborious. However, if the slits are relatively large, the use of sand-free grouts not only wastes material but also causes cracking. Therefore, when you choose, you must choose sand or no sand grout according to the width of the seam.
Grafting agents are available in many colors, but they are mostly white, gray, and apricot. The reporter saw at the building materials supermarket that the color of the same specification of the same brand of caulking agent is different from that of the price of 3-5 yuan. The price of the white caulking agent is the lowest. Some grouts are divided into ordinary and low-alkali type, ordinary grout claims to have good impermeability, water resistance, mildew resistance; low-alkali products can effectively overcome the back to alkali, white phenomenon. Is the sewing agent more expensive? Is it necessary to choose a caulking agent to have good waterproof performance, or even to choose a low alkali product? The two experts agreed that there is no need.
According to Jinjiang, some high-grade tiles come with special grout; some lower grades can choose the same color as the grout; some poor quality ordinary bricks can choose white grout as the grout, just use Life is not long, easy to yellow off, resulting in inconsistent colors. "Grooving agent mainly depends on the degree of firmness and aesthetics, not because of its waterproofness." Wang Enlai that ordinary grouts are sufficient. As for the low alkali type caulking agent, due to the small amount of the caulking agent used in the home, the resistance to alkali is "not significant." Jin Jiang also believes that the seaming agent is only a kind of auxiliary decorative material. Whether the waterproof is the key to whether the waterproof layer is good or not, and whether the seaming agent is waterproof is not much related, therefore, the choice of ordinary seaming agent will do. "More than 20kg/barrel of 5kg grout is very good."
Wang Enlai introduced that the appearance of a good caulking agent is relatively delicate, and it is relatively firm and not easy to fall off, and has a long service life. As for the color, it mainly depends on the owner’s own needs, such as seeing whether the color of the seam sealant is similar to that of the brick, in combination with personal preferences. "As long as it is a regular factory production."
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