I am worried about using the wrong sea sand when I build my own house at home. Can you elaborate on the characteristics of shells in sea sand? What will happen if you use the wrong sea sand?

1, the sea sand is relatively easy to distinguish, the sea sand is relatively fine, and there are obvious white and black shell residues in it; After the sea sand is soaked in water, it is easier to shape, such as holding it by hand.

2. River sand is thicker than sea sand, and there are obvious quartzite and metal pieces in it. If you throw a magnet into the river sand, you can generally suck some sand.

3. For two kinds of sand with the same volume, the weight of sea sand is lighter than that of river sand.

Although sea sand has the advantages of river sand, it is often mixed with shell fragments and contains more salt. Most of the sea sand contains excessive chloride ions, which will corrode the steel bars in reinforced concrete, eventually leading to the destruction of the building structure and shortening the safe service life of the building to a certain extent.

River sand, such as mountain sand and sea sand, is often used in general projects, and should be inspected according to technical requirements.