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Learn 5 civil engineering concepts today
A fresh set every day. Short, practical, and written the way it actually matters on site.
Dead Load
The permanent self-weight of the structure and its fixed finishes.
On siteIt never goes away, so it dominates long-term deflection and creep.
Scaffolding
A temporary framework giving access and working platforms.
On siteIt carries people, not the structure. Overloading it with stacked material is a routine and serious hazard.
Fly Ash
A fine residue from coal combustion used to replace part of the cement.
On siteImproves long-term strength and cuts heat of hydration, but slows early strength gain.
Neutral Axis
The line across a bending section where stress is zero.
On siteAbove it concrete is in compression, below it steel takes tension. Its depth sets the lever arm and the moment capacity.
Lap Length
The overlap between two bars so force passes from one to the other.
On siteLaps belong in low-stress zones. Lapping every bar at the same section creates a deliberate weak plane.
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