When choosing cement and sand, pay more attention,

2022-07-22
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Pay more attention to brands when shopping in small markets. The brand of cement and sand in building materials supermarket is relatively single, and there is no room for bargaining. However, building materials sold in building materials market are mainly wholesale, with relatively rich types. The price is not only cheap, but also negotiable. From the perspective of brand types and prices, the ordinary building materials market may become your first choice. However, according to the interview of the reporter, although the price of the supermarket is high, the price is clearly marked, and the quality is guaranteed. Even if there is a problem, you can complain. Although the price in the small market is cheap, you will bear the corresponding risks. Therefore, it is recommended that you go to the brand building materials supermarket to buy cement sand

pay more attention to the purchase in the small market

the brand of cement sand in the brand building materials supermarket is relatively single, and there is no room for bargaining. However, the building materials market mainly sells building materials wholesale, with relatively rich types, and the price is not only cheap, but also negotiable. From the perspective of brand types and prices, the ordinary building materials market may become your first choice. However, according to the interview of the reporter, although the price of the supermarket is high, the price is clearly marked, and the quality is guaranteed. Even if there is a problem, you can complain. Although the price in the small market is cheap, you will bear the corresponding risks. Therefore, it is recommended that you go to the brand building materials supermarket to buy cement sand

if you are still willing to buy in the general building materials market, we suggest you make a question mark in the following three aspects: first, the amount of cement and sand is sufficient. When you inquire, the other party may quote you the price of 50kg cement, and when you deliver the goods, it may send 40kg cement. Second, whether the types of cement and sand meet your expectations. Ordinary portland cement is usually used for home decoration, and the merchants may give you other kinds of cement, such as slag cement. Third, whether the cement sand is genuine. For consumers who don't have professional knowledge, it's difficult to distinguish the authenticity. You can bring experts with you to buy with you

call before departure

many consumers take it for granted that cement and sand are sold in the building materials market, but they are not. Whether it is the wholesale market of building materials or the brand store, there is the possibility that there is no cement sand, such as Yaoshun building materials supply station (Huaxiang store), red star Macalline, etc. And even if it is a store of the same brand, the situation is different in different stores. Some stores may have it, and some stores may not have it. For example, there is no cement sand in Shilihe store, but its North Fourth Ring Road store sells cement sand. Therefore, we suggest that you call to confirm before you leave, so as not to run the wrong way. In addition, some building materials markets are located in remote locations, inconvenient transportation, and difficult to find. It is best to check the specific location before departure, so as not to cause unnecessary trouble

see and touch to choose good materials

in a market of good and bad, how can we choose genuine cement sand? Don't worry, let's see what the experts say

question 1: what kind of cement and sand is used for home decoration

cement &mdash& mdash; Commonly used cement is divided into Portland cement, ordinary portland cement, slag cement, pozzolan cement and fly ash cement. In the process of home decoration, ordinary portland cement is generally used, which is also called ordinary cement in the industry

according to different strengths, ordinary cement is divided into multiple grades. Generally, the higher the grade, the higher the strength, but the higher the grade does not mean the better. Different projects apply to cements with different grades (strengths). For example, if the cement with too high grade is used when paving tiles, it may lead to hollowing and even cracking of tiles. Domestic interior decoration works usually use cement with the mark of 32.5

sand &mdash& mdash; Cement can be used only after a certain amount of sand is mixed and turned into cement mortar. In the industry, sand is usually divided into four types according to specifications: extra fine sand, fine sand, medium sand and coarse sand. Generally speaking, the coarser the sand, the higher the strength of the prepared cement mortar. However, if the strength is too high, it will also affect the project quality. For example, the ground leveled with high-strength cement mortar will crack. Zhongsha is recommended for home decoration

question 2: how to distinguish cement and sand

cement &mdash& mdash; When you buy Cement, you should start from four aspects: appearance, information, report and feel

appearance refers to the appearance of cement and its packaging quality. High quality cement should be grayish white, and generally, internal film covered bags with good moisture resistance and not easy to be damaged will be used; Poor quality cement is often packaged coarsely, which is easy to cause cement caking and moisture. The color of cement is too dark or changes, indicating that there are too many impurities

information refers to various marks and information on the cement package. Cement produced by regular manufacturers should be marked with registered trademark, place of origin, production license number, executive standard, packaging date, net weight in bags, factory number, cement variety and other contents, with clear handwriting and complete contents; Inferior cement often deliberately omits some content, and the information on the package is often vague. If you are not confident about the cement you purchased, you can also call the manufacturer's phone number provided on the package and ask the manufacturer to help identify it

report refers to the manufacturer's test report. Consumers can ask directly from the salesperson to judge the quality of cement through the test report. Generally speaking, the test report will give the appraisal conclusion of various performance indicators such as cement strength

in addition to the above methods, consumers can also test the quality of cement by hand feeling. Fine particles of high-quality cement; Inferior products have rough hand feel, low strength and poor viscosity when used

sand &mdash& mdash; Consumers need to be particularly reminded that they should be vigilant against illegal businessmen Li daitaojiang, such as replacing Zhongsha with fine sand and replacing natural sand or river sand with sea sand. Although the sea sand is clean, it is highly salty and alkaline, which will have a great impact on the project quality. Therefore, the State prohibits the use of sea sand in architectural decoration. If you want to distinguish whether the sand you bought is sea sand, you can see whether the sand contains small marine biological shells, etc

in addition, no matter natural sand or river sand, it can only be used after being bought and screened. Of course, there are also screened sands on the market, but the price is about 1/3 higher. You can choose according to your economic affordability

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