Concrete basics civil engineering
The concrete should not be thrown from a height of 1m.
Sand having a moisture content of more than 5% should be used for concrete mix.
A cube test is carried out for each 30 cm3 usage of concrete.
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| Grade of concrete & mix ratio |
Ready-mix concrete, the concrete is made at the factory and transported to the site, this type of concrete is used where there is a lack of space for mixing the concrete and used where a huge amount of concrete is required for construction.
Adding more water in the concrete mix to increase setting time leads to the cracks or honeycomb in hardened concrete.
The thickness of DPC Should not be less than 2.5 cm.
Impermeability of concrete The concrete that resists the entry of water or moisture into it.
The concrete can be lifted to a maximum height of 50m using concrete pumps. The curing period of RCC is 25 days.
M20 grade concrete is generally used in the construction of the slab.
Grade of concrete :
Concrete :
Normal Grade of Concrete
M5 1:5:10
M7.5 1: 4: 8
M10 1 : 3: 6
M15 1:2:4
M20 1:1.5:3
M25 1:1:2
Standard Grade of Concrete
M35 Design Mix
M40 Design Mix
M45 Design Mix
High Strength Concrete Grades
M50 Design Mix
M55 Design Mix
M60 Design Mix
M65 Design Mix
Civil field engineer
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