hello dear friends in this video I
will share with you some information related
to the steel rebar
Steel rebar is one of the important factors
in the house construction
Many people are not aware
that which grade of steel rebar
one have to use in the house
what should be the grade and quality of the steel rebar?
those points with the help of
sample rebars I will try to clear
You can ask all these points
from the dealer from where you are
purchasing the steel rebars
Brands may be anyone but the
information in that brand
which you will inquire from the dealer
it will be clear to you
which type of steel rebar you have to buy for your house construction?
 
I was observing earlier videos for the feedback
 
 
how you decide to buy steel rebars?
Are you really aware about the quality?
your neighbour or relative suggest to purchase any particular brand
 
 
 
 
In this suggestion are they really explain the technical points?
 
or they just says this is in trends now days,
you can buy it, this particular is of good quality
second thing is about the price list of steel rebars, some
have costly and some are reasonably cheap
 
so what type of steel rebar you decide to buy for house construction?
does you give priority to the price ?
I am sure if you are aware
 
 
 
about the technical points (quality parameters)
then you will not think much about the price
 
 
 
but if you have no idea about the technical parameters
means the grade and ribs pattern of the steel rebar
then it will be difficult to decide
and most probably you will focus on the price list
a comarision of price between the brands
so just for litlle difference amount of money one
buy the lower quality steel rebar
 
 
from my general observation Ihave observed
that maximum people are not aware that which grade and quality rebar one have to purchase
 
what type of construction is?
 
is this just only for one floor, 2 or 3 floors
or it is a big bungalow
or is it big buildings of multi floors
 
 
or like bridges
 
for different type of construction
different grade of steel rebar we use
 
for the local house constructions like 1to 4 floors or bungalows
 
 
 
so here it is important to understand that which steel rebar is suggested?
 
 
through a simple example I explain it
 
 
 
 
 
 
 
 
Fe 500 D or Fe 500SD
D means ductile SD means super ductile
 
 
 
 
 
now days FE 415 is outdated and not in use
 
 
 
 
 
 
 
500 is ok for normal house construction
for the earthquake prone zone  one
have to use SD
for normal and plane areas 500D is good
 
 
 
 
 
before you buy the steel rebar check the grade is it D or SD
SD for hills and earthquake prone zones
 
before brand check the grade on steel rebar
is that 500 and next it is D or SD
 
 
In the Himachal and Uttrakhand one have to use SD
 
 
 
 
earlier steel rebar was manufaturing with different process
 
lack of ribs pattern
 
TMT is a technology by which
steel rebar processing completes
 
 
 
By this process a strong layer created on the steel rebar
that enhance the strength of the steel rebar
 
 
second point about the grip with concrete and other steel rebars
it actually depends on the ribs pattern
 
flats surface grip will be weaker compared to the specially designed ribs
 
In SRMB Steel they used wingrip technology for ribs pattern
this grip enhahance the bonding
 
 
for an example in a specific condition of earthquake
when
structure bends
with a small angle
 
in that bending if this concrete
leave the net of iron steel rebar
 
 
 
 
 
 
in this situation when concrete leave the steel rebar
due to weak bonding
then what will happen there
you can imagine the damage
 
but if concrete can gripped strongly with the steel rebar
then at the time of earthquake both will move together
and this structure will not damage
 
so a strong bonding between steel rebar and
concrete is must
along with the strength of steel rebar
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
