How to distinguish river sand from sea sand at a glance?

The difference between sand and river sand only in appearance is:

The color of river sand is relatively yellow and bright, and the color of sea sand is dark and brown; The grain size of river sand is coarse, and the sea sand is very fine, and some are even like powder (never used), which can be known by rubbing it directly by hand.

River sand is divided into coarse sand, medium sand, fine sand, and now there are very few coarse sand used for interior decoration, and most of them are still medium sand.

There is not much large gravel in good river sand, but this is rare now.

The surface roughness of the river sand is moderate, and it is relatively clean, containing less impurities. The general decoration is also river sand, if you want to put tiles in your home, that.

It is better to use river sand tiles, and absolutely not sea sand.

Because the salt in the sea sand is corrosive to the steel bar, and there is no stickiness, it cannot be sticky. If it's a desalinated sea sand, it's a little better.

River sand is dug from freshwater lakes or shallow ditches in mountainous areas, generally without salinity, and can be mixed into the soil to grow flowers, or as a medium for flower and tree cuttings. The sea sand is dug from the beach, has a slightly saline texture, is washed with tap water, and can also be mixed into the soil to grow flowers. The difference between river sand and sea sand is difficult to distinguish.

In order to facilitate the growth of flowers and trees, no matter where it comes from, it can be used as a medium for flower cultivation as long as it is first rinsed with tap water and dried.

1: First of all, it is necessary to see if there are marine tiny shellfish, etc. in the sand This is sea sand 2: Dried in the sun, there are white crystals (salt) is sea sand 3:

Grab a handful of soaked water, don't taste too much water 4: First of all, from the appearance, the sea sand particles are large, containing a lot of shells and the like. The real river sand is very uniform and very fine.

5: Sticky feel, grab a handful of sand and hold it hard, and then pat it off, and find that the sticky hand is not clean for the sea sand, and the non-sticky hand can be basically clean for the river sand.

River sand is the recently deposited quicksand, widely distributed in the floodplains of large rivers and small rivers, will be relatively clean, is the best sand for buildings, sea sand due to the salt content and other impurities, the use of construction is poor.

1. Distinguish sea sand from river sand in appearance. In terms of exterior color, the sea sand is darker in color, dark brown, and some are lighter in color. The color of the river sand is much brighter than yellow.

In terms of particle thickness, the particles of river sand are relatively coarse, the surface roughness is moderate, and the impurities are relatively few. The sea sand is very fine, and some of it is powdery, which is absolutely unusable. Judging from the fragments of particles, sea sand generally has fragments such as shells, and river sand has pebbles of various sizes.

2. Compare sea sand and river sand in terms of specifications. The river sand used in the construction has certain specifications. In the process of river sand screening, it is generally divided into river sand 4-8 mesh, river sand 8-16 mesh, river sand 10-20 mesh, river sand 20-40 mesh, river sand 40-70 mesh, river sand 50-100 mesh, etc., which refers to the number of particles within an inch of circle, and sea sand has not yet been classified into such fine and clear rules.

3. Distinguish between sea sand and river sand from the feel. Grab a handful of sand and hold it firmly in your hand and then pat it off, and find that it is the sea sand that is not clean with sticky hands, and it has a sticky feel. If it's not sticky, it's river sand.

4. The difference in taste between sea sand and river sand. It's the easiest and dumbest way to do it. When you taste it, you will find that what is not salty is river sand, and what is salty is sea sand.

There is also a lot of sea sand that has been desalinated, we can soak the sand in the water for a while and taste the taste of the water, and the salty is the sea sand.

5. The difference in composition between sea sand and river sand. The main component of sea sand is silica, the crystalline phase is mainly quartz, feldspar and cuttings are relatively less, the content of mica flakes is less, and the roundness is also very good. The content of silica in river sand is lower, and there are more metal ions such as calcium and aluminum, and the content of mica flakes will be more.

However, this is only an overall average, and sometimes there are exceptions, and it is difficult to have specific quantitative indicators.

The sand that is needed when building a house is used in many people thinks, sand is the same anyway, and it doesn't matter which one you use. But in fact, this is not the case, sand is also divided into sea sand and river sand, so how to distinguish river sand from sea sand?

1. Look at the appearance: the color of sea sand and river sand is very different, the color of sea sand is darker and darker; In the case of river sand, the color is much brighter than yellow.

2. Look at the particles: the grain of the river sand is coarse, indicating that the roughness is moderate and the impurity content is less; In the case of sea sand, the grain is finer, and some sea sand can even reach the form of powder.

3. Look at the degree of stickiness: The stickiness of sea sand is more sticky than that of river sand. As for the river sand, it is almost clean with a pat of both hands.

4. Taste: Sea sand has a certain salty taste, while river sand only has an earthy taste.

The above is the method I shared with you to distinguish between river sand and sea sand, I believe you have a certain understanding of this, I hope it can help you.

1.In terms of color, the river sand is relatively yellow and bright, and the sea sand is dark and dark brown.

2.First of all, from the appearance, the sea sand particles are large, containing a lot of shells and the like. The real river sand is very uniform and very fine.

3.Exposed to the sun, there are white crystals (salt) is sea sand.

4.Grab a handful and soak it in water, and don't taste too much water.

5.Sticky feel, grab a handful of sand and hold it hard, and then pat it off, and find that the sticky hand is not clean for the sea sand, and the non-sticky hand can basically be clean for the river sand;

6.There are many shellfish shells doped in the sea sand, the particles are large, and the compactness between the sand and gravel is very low, so the feeling is very rough in the hand, and the river sand particles are small, and the density between the sand and gravel is high, so the feeling in the hand is very delicate.