|Mon Jun 05, 2017||Total posts : 2
| Topic: Steel Rod TMT FE 500 & FE 500D
I am building a 2 storied house. My architect said he will used Steel Rod - FE 500D for foundation and pillar work.
But I found that the rods are only FE500. (It is embossed on the steel rods).
Is it safe to build an extra storey in future with FE 500 ?
Or should I ask him to change to FE 500D?
|Mon Jun 05, 2017||Post #1|
|S L Gupta (Civil Engg)|
Join date: Mar 2008
Both are good.See below
These steel bars are crafted under strictly regulated manufacturing
process which makes them easily bendable. There is an important
connection between concrete and steel. Concrete has great compressive
power but relatively low tensile strength and ductility, therefore when
it fuses with TMT steel bars; it gives rise to a highly ductile and
While both Fe500 and Fe500D TMT bars are good for different types of construction projects, the Fe500D TMT bars
certainly comes with a greater ductile strength than the Fe500 TMT
bars. The Tensile strength of steel remains the same for both these
products. However, it is the overall ductility that makes all the
difference. Ductility is the ability of the material, to plastically
deform and adapt while being stressed with a tensile load.When a piece
of ductile material is pulled, before rupture (breaking apart), is will
deform, change its shape to adapt to the stress. By doing so it will
also absorb energy, represented by the area under the curve AB’ in the
The opposite of ductility is brittleness. A brittle material absorbs,
during stress, very little energy (the area under the curve AB) and is,
usually, not even plastic (in the example below it has a very limited
Pillar Work-Construction Questions (38)
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