## Why don’t We Exclude Steel Volume in Concrete Calculation? – Quick Tips

Welcome to our Quick Tip series post,

There are some unanswered questions which may be answered within a minute or within 2-3 sentences. Nobody specifically wants us to know or no one asks us in the interview.

## How to Calculate the Weight of a Steel Bar? – With Example Calculation

Do you think it’s that simple formula (D2 / 162.2) for steel weight calculation of a bar?

Nope…

It’s hard to find the exact weight of steel bars according to its area, it is advisable to refer the manufacturer’s chart to calculate the weight of the steel bar.

If you can’t find the details, then the below steel bar weight calculation formulas are useful for site level execution.

## How to Calculate Circular Slab Reinforcement?

Let say you need to calculate the reinforcement for a circular slab of 2 Metre diameter with spacing 200 mm c/c and clear cover as 25 mm.

Unlike other RCC members, this one is different since the rod length will differ according to the diameter of the circle.

# Difference between Lap Length and Development Length (Anchorage)

The main purpose of providing reinforcement bars is to transfer the load from member to member. It may be either to another rebar or to concrete.

In Order to successfully transfer the load from one member to another, reinforcement bars need to be firmly tied at both ends so that it can’t be slipped away.