Question { Simplex, 5209 }

If i buy some material and the seller asks me my TIN number
what does that mean??
Is it my Taxpayers Identification number or it is my Tax
invoice number?
What does both of these stands for???

Answer

it is tax invoice no.

Question { Unicel, 7815 }

How many cncrete grades are used for construction,explain
with proportion,grades and where it used

Answer

M-10,M-15,M-20,M-25,M-30,M-35,M-40,M-45,M-50

We can use M-10 to M-25 Nominal mix,but after M-25 we will have to use design mix.

Question { RRB, 10391 }

What are the tests to be conducted on cement?

Answer

Seive test, Initial setting time, Final Setting time, Soundness test.

Question { KPTL, 50833 }

in steel bar weight formula (d^2/162).so what is 162.

Answer

for 1 m length steel rod

I ts volume V =(Pi/4)*Dia x Dia X L
=(3.14/4)x D x D X 1 (for 1 m length)

Density of Steel=7850 kg/ cub meter

Weight = Volume x Density
=(3.14/4)x D x D X 1 x7850 (if D is in mm )

So = ((3.14/4)x D x D X 1 x7850)/(1000x1000)

= DxD/162.27

Question { CIL, 7893 }

Which is code is used for measurmenr of reinforcement steel
work.

Answer

IS 1786 for reinforcement in concrete

Question { 16676 }

what is the formula for lapping length

Answer

According to IRC 21:2000, clause 304.6.2----

Development/Lap Length is depends upon various factor--
like-
1. Grade of Concrete
2. Grade of Steel
3. Bonding Zone

Lap Length will be- nx Dia
Value of n is as below-

M20 M25 M30 M35 M40 and above
Fe500 66 56 48 42 42

Fe415 55 46 40 35 35

Fe 240 65 60 55 50 50

These values belongs only for bonding zone-1*.

For Bonding zone 2- n=1.4 x value of "n" in bonding zone 1

* Bonding Zone 2- Bonding Zone 2 is a zone where bar has been bent less than 45 degree angle and more than 300 mm fresh concrete is casted below the bars.

All other locations are bonding zone 1

Question { 8742 }

what is the no. of IS Code?

Answer

Your question is wrong.what do you want to ask, which IS code..