Commonly Used Sands For Construction
When you think of building materials, what comes to your mind?
It’s most probably stone, cement, steel bars, etc. However, one other material is fundamental to construction: sand. When mixed with other construction materials, it provides strength and adds bulk. Its tenacious properties make it vital for building materials. On Graana.com, you can find many informative blogs regarding construction materials, etc.
Sand has been used in construction materials for ages. It is mainly obtained from the sea, beach, river, and desert. There are many different types of sand, and each serves another purpose. It’s crucial to know the kinds of sand because you will decide which one would be suitable for your project based on that.
Types of Commonly Used Sands For Construction
Sand is classified into different types based on its grain size, color, shape of granules, binding power, bulk, and price.
Following are the characteristics of concrete sand.
As the name suggests, concrete sand is made from crushed concrete. After crushing, the sand is filtered to remove impurities and larger fragments. It mainly consists of limestone, granite rock, and gneiss.
Its Nature and Shape
It is coarse and has relatively smaller particles than crushed stone sand. Its particles are sharp and angular in shape, making them rough and less absorptive.
After mixing it with water and cement, it is used for constructing patios, sidewalks, etc.
Other than that, some other uses of concrete sand include leveling medium, bedding pipe, and de-icing.
Following are the characteristics of Pit sand.
Pit sand is found naturally in deep pits about 2 to 3 meters underground.
Its Nature and Shape
It is also coarse sand with sharp, rough, and angular grains, enabling it to have the perfect binding properties. It is reddish-orange as it contains iron-oxide in it. It usually has zero salts in it compared to sea sand.
Due to this reason, it absorbs less moisture, hence making it more suitable for building and construction purposes. Its binding properties make the buildings rigid and stronger.
Following are the characteristics of River sand.
The other name of river sand is natural sand. It is found naturally near the streams and banks of rivers.
Shape and Size
It is white-grey and has a really fine structure. Because of its particles’ extremely fine form and softness, it is in high demand for construction works.
Mainly it is used for construction, masonry work, RCC, plastering, block works, etc. It requires less water because of the already trapped moisture in its particles.
It is cheaper than other types of sands because it is found naturally. You need to keep it in mind before using it for construction to make sure that it has less than 5% silica because it generally tends to have higher amounts of silica in it.
Manufactured Sand or M-Sand
Following are the characteristics of M-sand.
It is an artificial type of sand that is manufactured in factories. This sand is used mainly as a substitute for the fine river sand. With the rise in the demand for fine quality sand, M-sand has been used more and more. One significant advantage of using this sand is that it cuts the cost of transporting the natural sand from rivers to the construction site. Hard granite goes through crushing, sieving, and washing, and then this river sand-like sand is formed.
Shape and Size
Its granules are angularly shaped, which helps in creating an excellent bonding when used in construction material.
It requires a high amount of water, but it can be compensated by using cement.
Because being manufactured artificially in the factories contains zero silt or any other forms of impurities. Besides being economical, it has fewer chances of adulteration because it’s being prepared under control conditions.
Mortar sand is also called masonry sand. It is widely used for landscaping and construction. Masonry sand is a suitable type of sand often used in construction.
Shape and Size
Because it has almost the same-sized grains, it has a smooth and fine structure.
Besides masonry work, it is also used for many other purposes, particularly for exterior finishings because of its nice appearance.
Following are the characteristics of Fill sand.
As the name tells us, fill sand is mainly used in construction work for serving. Many different sand grains are mixed with aggregate to get this sand. Particularly, fill sand is all finely crushed rock particles that have gone through the process of erosion.
It is a perfect base material for the construction of buildings because of its compaction properties. It can also be used as a backfill to stop the drainage in underground concrete tanks.
No matter what type of sand you choose for your project, some things must be considered. The silt material should always be less than 3%, and there should be no traces of any kind of impurities. Also, you should analyse the sand type that you are buying and check whether it’s suitable for your project or not. As sand is one of the basic materials used for construction, your carefully chosen sand type can make a difference to the structure’s strength and durability.