We all know the concrete is strong against compression force and weak against tensile force. So, to stabilise the concrete against tension force, the steel reinforcement is embedded into the concrete. Hence forming reinforced concrete and gives strength and enough durability for the structure. But why not use other materials…
Have you ever wondered why there are two types of bars used in slab reinforcement, namely Main bar and distribution bar? We have discussed the difference between one way slab and two way slab. Also know the load handling of each slab type. There is where the underlying answer is,…
We often get confused about using these terms – Development Length, Anchorage Length, and Lap Length. What is the development length? The steel reinforcement that is prolonged into concrete to avoid steel slippage and to transfer the load to the concrete bond smoothly is known as Development length or Anchorage Length.…
Every time we calculate the concrete or cement mortar calculation, We use 1.54 constant to get a dry volume of ingredients. But why exactly 1.54 why not 1.75? What is the reason behind that? Its simple. Adding Bulking of Sand & Void Ratio Compressibility 1. Bulking of Sand – Up…
We have discussed concrete calculations in an earlier post. If you refer to the post, we don’t exclude the steel quantity. Why? Based on the thumb rule of steel quantity or by the exact calculation, the amount of steel used in structural elements is from 1-3%. It is very low…
Generally, 150mm thickness of sand filling is provided beneath the PCC bed. You may be confused!. The concrete is a stable element then why do we need sand filling beneath PCC in footing!. There are five possible reasons behind sand filling under footings. Let’s see each briefly. Reason 1 -…