The Constructor

Civil Engineering Tips – Points to Remember for Civil Site Engineer

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Civil engineer does many activities at construction site and there are certain works which are repetitive in nature. So, some points, tips and tricks which a civil engineer should remember for faster calculations as well as quick solutions to construction site problems.

Points to Remember for Civil Site Engineer

Following are few general points to remember for civil site engineers to make the construction work easier while maintaining quality of construction.

Density of Materials

Material Density
Bricks 1600 – 1920 kg/m3
Concrete block 1920 kg/ m3
Reinforced concrete 2310 – 2700 kg/ m3

Curing time of RCC Members for different types of cement

Super Sulphate cement: 7 days Ordinary Portland cement OPC: 10 days Minerals & Admixture added cement: 14 days

De-Shuttering time of different RCC Members

RCC Member De-shuttering time
For columns, walls, vertical form works 16-24 hrs.
Soffit formwork to slabs 3 days (props to be refixed after removal)
Soffit to beams props 7 days (props to refixed after removal)
Beams spanning upto 4.5m 7 days
Beams spanning over 4.5m 14 days
Arches spanning up to 6m 14 days
Arches spanning over 6m 21 days

Cube samples required for different quantity of concrete

Quantity of Concrete No. of cubes required
1 – 5 m3 1 No’s
6 0 15 m3 2 No’s
16 – 30 m3 3 No’s
31 – 50 m3 4 No’s
Above 50 m3 4 + 1 No’s of addition of each 50 m3
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