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What are the classifications of cement and sand?
Release time:
2023-09-20 15:47
Cement is divided into: ordinary Portland cement, slag cement, fly ash cement, pozzolan cement four models. Labels commonly used for: 32.5, 42.5 two models. The variety of cement is very important, we must ask what kind of cement, because the performance of the four kinds of cement is not the same, and can not be mixed with each other. Sand is generally medium sand. There are only two kinds of sand to be delivered to the construction site: one is medium sand (divided into river sand, river sand and dry sand), followed by quality river sand and dry sand. The other is mixed sand (also divided into river sand, river sand, dry sand). The role of sand is concrete mixing, masonry, plastering. Mixed sand (that is, sand and stone) is used for backfilling.
Dealing with people on the construction site is mainly for material workers. Generally, kickbacks need to be made. As for the payment, it may have to be paid once a month and finally settled. Another thing is not to be shoddy. People on the construction site have poisonous eyes. The silt content of sand and gravel can be seen at a glance. There is also the need to ensure that the quantity leaves a good impression on the construction site, so that the construction site will think of you if there are any more projects. When it's okay, greeting the material workers, constructors, quality inspectors, team leaders and warehouse keepers on the construction site to have some food (about 300~500 for a little money) can have unexpected effects.