Construction sand is one of the bulk inputs in construction. Sand is usually used alongside cement and blast to firm concrete. Sand and cement mixtures are used to fill spaces. Sand, ballast and cement is used to make concrete that is used in making slabs, columns and beams. The price of construction sand in Kenya varies with factors such as distance from the source and government restrictions. In this article, we break down the price of construction sand in Kenya.
These are the uses of sand in construction
Sand is very important in construction, as said earlier, it is used as a joining agent. Sand mixed with water and cement is used to join blocks together during construction.
Sand is used in making concrete for making areas like the slab, the columns and beams.
Price of sand in Nairobi
The price of sand in Nairobi has been hiking every day. Nairobi depends on neighbor counties for the supply of construction sand. The counties moved to put strict restrictions on the mining of sand due to environment protection measures. This made construction sand in nairobi very expensive.
The counties of Kitui, Machakos, Kajiado and makueni have put strict policies governing harvesting if sand. They reported that previously, harvesters mined construction sand without regard to the environment.
Due to this challenges, 20 tones of sand now costs 40,000 from the previous 30,000 shillings while 10 tones cost 20-25,000 shillings. This prices are the highest and are set to rise even more.
Types of sand used in construction
Before buying sand, it is important to know the different types of sand used in construction.
Natural or River sand
This is the kind of sand found besides water bodies and river banks. This type of soil is fine and is used in making concrete, plastering and brick joining. The grains are well shaped and demand less water when mixing with cement. This type of sand firm’s naturally in rivers and other water bodies and is the fire cheaper. It is pirtant to kite that such sand contains silica which should be below 5% for construction purposes.
As the name suggests, fill Sand is used in construction fir filling purposes. It is made of fine grains that are as a result of erotion from stones. It can be used to fill holes, be used as the filling material for paving and many other base uses such as filling around sceptic tanks.
This makes s sand made from crushed concrete. Concrete Sand is used for filling and can be mixed with cement to make concrete for pavements and other bases.
Pit sand us the kind of side that is mined from the ground.bit is the best sand for construction due to its excellent binding qualities. It is usually sharp, angular, rough and coarse grains. Thanks s construction sand is free from any kinds of salts and therefore does not react with moisture and shall last.
This is the kind of sand manufactured in factories to be used in construction in place of sand. Manufactured Sand has almost the same qualities with River sand and is most at times used in India. It contains less effort mpurities and is readily available compared to river sand.
When choosing construction sand in Kenya, ensure it has less silt content, should not contain organic components or any other foreign material. Each type of sand has its areas, choose the correct type for each task.