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Crown helps in drainage by sloping the surface to the sides.
This duration ensures uniform mixing of concrete ingredients.</p
Portals are the visible entry and exit points of tunnels.
The hydration of cement releases heat, hence it is exothermic.
Throating prevents rainwater from adhering to and dripping along walls.
Working load is the maximum safe load a structural member can carry under normal conditions.
Honeycombs are voids that reduce concrete strength and durability.
Volume of concrete is calculated in cubic meters for slab, beam, and footing works.
RCC is denser than plain concrete due to the embedded steel.
Strength is the capacity of a material to withstand applied force without failure.