In the decoration of a new house, is it better to have sea sand or river sand?

The river sand is good, the river sand has moderate pH and uniform thickness, which is a good building material, while the sea sand is salty, compared with the river sand, has small particles, strong adhesion, and has a great degree of corrosion to the building.

It must be the sea sand good. Because the accuracy of the sea sand will be higher, the quality of the decoration will also be improved.

1. Architectural differences.

In the field of construction, river sand has been widely used and has made great contributions to the construction industry. However, due to the excessive chloride ions contained in the sea, if it is directly used in construction, it will corrode the steel bars and cause cracks in the house. If the sea sand used in the construction does not meet the mandatory standards of the state, the chloride ion content exceeding the standard will seriously corrode the steel and exchanging reinforcement in the building, causing major safety hazards.

Second, the difference in particles.

In terms of particle thickness, the particles of river sand are moderately rough and contain less impurities. The sea sand is fine, powdery, and often mixed with fragments such as shells.

3. Differences in composition.

River sand is low in silicon and high in metal ions such as calcium and aluminum. The main component of sea sand is silica, the crystalline phase is mainly stone and old, feldspar and cuttings particles are relatively less, the content of mica flakes is less, and the roundness is also very good.

Fourth, the difference in taste.

River sand has no taste; Sea sand smells salty; If the sea sand is used for decoration, then after the wall is painted with latex paint, it will be alkaline and yellow when it encounters a cloudy day; When the humidity is too high, it will also be moldy and hairy, especially in the humid southern region, the wall will seep out a large number of water cover car beads and water droplets; If you put wallpaper, it will also turn black over time.

Therefore, do not use sea sand when decorating, and if you must use sea sand, then use freshwater treated as well.

Encyclopedia - River Sand.

Due to the high salt content of sea sand and excessive chloride ions, sea sand is highly corrosive, which not only damages the concrete itself, but also destroys the steel passivation film and corrodes the steel bar. Buildings that use sea sand have less than half the life span of normal buildings, resulting in many buildings showing mottled steel bars. So what is the difference between sea sand and river sand?

The following is to talk about the difference between sea sand and river sand from several aspects, hoping to attract everyone's attention.

The difference between sea sand and river sand.

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 in terms of 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 is sea sand and river sand.

The main component of sea sand is silicon dioxide, the crystalline phase is mainly quartz, feldspar and cuttings particles are relatively less, the content of mica flakes is less, and the roundness is also very good.

The content of river sand silicon 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. Tips:

I believe that through the above introduction of the difference between sea sand and river sand, I believe that everyone has a certain awareness. Sea sand is generally used for sports sand, and in family garden landscape, river sand is mostly used for construction. Buildings generally contain or cannot use sea sand as concrete raw materials, otherwise there will be a large number of brittle buildings.

The Ministry of Construction pointed out in the regulations on the management of construction sand that the sea sand must be purified to meet the requirements before it can be used, and for reinforced concrete, the chloride ion content in the sea sand of the sea sand should not be greater than that, but at present, in order to save costs, many construction units use sea sand that has not been desalination. Friends who are decorating the building should carefully distinguish the difference between sea sand and river sand to avoid potential safety hazards.

Summary. In terms of aesthetics, the river sand decoration is not as good as the washed sand decoration.

Is it better to decorate the river sand or wash the sand.

In terms of aesthetics, the river sand decoration is not as good as the washed sand decoration.

River sand decoration has a certain degree of practicality, it can protect the wall from damp conditions, and has a durable look, but the lack is that the overall look is not clean and beautiful. Washed sand decoration can increase the aesthetics of the interior, and this decoration can also be moisture-proof and dust-proof treatment on the wall, but the durability is not as high as the river sand decoration.

In addition, before decorating with river sand or washed sand, you need to make sure that the cavity wall is flat and the paint can be better bonded to the wall. In addition, you can also use some active acne mortar to strengthen the waterproof performance of the wall to prolong the service life of the acne mortar.

Of course, river sand is good, river sand is actually freshwater sand, and sea sand is saltwater sand.

First, the sea sand is soaked for hundreds of millions of years, and its salt components have invaded the inside of each sand, the so-called sea sand you see on the market is actually the mined sea sand piled up in a yard for repeated fresh water washing, no matter how the manufacturer washes it, it is only to wash off the salt components on the surface of the sea sand and the salt components inside it still exists, the general manufacturers sell such products when the sand is very watery, why, haha, because if you don't add water at any time, The salt inside the sea sand will soon form a white substance on the surface under the operation of wind and sun, which is actually salt.

Here I will share with you a practical method of sea sand identification: "Take a little bit of sand from the manufacturer to make a sample, find something to crush the sand, and then put it in the mouth, if it is salty, it is sea sand", the steel bars in the building are the most afraid of salt, so such sand cannot be used in construction, sea sand on the earth is mainly used for refining related minerals or reclamation".

Second, there is also a difference between sea sand and river sand in terms of modulus, to put it bluntly, the appearance of river sand is relatively large and rough, with more than 7 edges and corners, while sea sand is relatively fine and has less than 7 edges and corners. I won't put on the parameters that are too professional, we all know that the larger the volume + rough parameters, the more favorable it is to the firmness of the building concrete.

There are two main types of identification, namely scientific laboratory testing and empirical testing. I won't talk about it too professional, let's talk about empirical testing, the water content can be measured by sight, and the mud content can be grasped by hand with a handful of wet sand in the hand, and then suddenly loosened, if the sand is loosened to form a clump, it can be judged that the mud content is larger.

It is better to decorate the house with sand. There are many buildings that do not use sand and use stone powder instead. Stone powder is not used with the cultivation of succulents. Even the sand used for decoration should be washed twice with tap water before being used to grow succulents to wash away impurities and make the succulent healthier.

Theoretically, it is necessary to use river sand to build a house.

Washed sand is good.

Washed sand: It is the raw sand for casting that has been washed and graded by natural silica sand, and the mud content (mass fraction).

River sand is mainly floodplain sedimentary sand, which is grayish-white-grayish-yellow, and is composed of medium and fine sand, medium coarse sand, coarse sand, gravel layer and gravel layer. Its occurrence is oriented to the riverbed, the surface layer is inclined from the riverbank to the riverbed, and tends to be inclined from upstream to downstream, the apparent density of river sand is 2580kg m3 and the bulk density is 1569kg 3m fineness modulus. There are 4-8 mesh, 8-16 mesh, 16-30 mesh, 30-60 mesh, 40-70 mesh, 70-100 mesh, etc.

Machine-made sand: refers to the sand processed by the sand making machine and other ancillary equipment, the finished product is more regular, and can be processed into sand of different rules and sizes according to different process requirements, which can better meet daily needs. Machine-made sand requires professional equipment to produce qualified and suitable sand and gravel.

The machine-made sand production line is composed of a combination of equipment such as vibrating feeder, jaw crusher, sand making machine, vibrating screen and belt conveyor. According to different process requirements, various types of equipment are combined to meet the different process requirements of customers.

The roughness of this general situation of river sand is moderate, and even after sifting, it can be said that it is generally very good. Moreover, its sand is clean, and there are relatively few impurities, which is very suitable for home decoration. Therefore, in terms of effect, this is still better, so it is better to use river sand for home decoration.

Washed sand: It is the raw sand for casting of natural silica sand washed and graded, and the mud content (mass fraction) River sand is mainly floodplain sedimentary sand, which is gray-white - gray-yellow, and is composed of medium and fine sand, medium coarse sand, coarse sand, gravel layer and gravel layer.

The river sand is better, the river sand has soil, and the cohesiveness is better.

It is recommended to use river sand, because sea sand has salt, which has an impact on the apparent quality of building structures and decorative materials, and salt is also electrochemically corrosive to metal materials. The main difference between river sand and sea sand is that sea sand contains more salt, while river sand contains almost no salt, and salt has a corrosive effect on concrete and steel bars.

It is recommended to use artificial desalination sand, which is not expensive. **On the sale, cheap and free shipping!

The sea sand is good, but the salt content needs to be washed to avoid corrosion of the steel bar (generally the sea sand sold regularly is washed). The river sand has a high soil content and should be used as little as possible.