The aggregates are graded as fine and coarse aggregate based on the grain size. When the aggregate size is greater than 4.75mm is called coarse aggregate, and less than 4.75mm is called fine aggregate. The sieve analysis test will do the grading of aggregates. What is a sieve analysis test?…
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…
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 -…
The crushed sand is artificial sand which is manufactured by crushing granite stone. It is manufactured artificially, so it is also called M sand or manufactured sand. Difference between crushed sand and river sand Parameters Crushed Sand River Sand Cost The crushed sand is manufactured from available rock stone, and…
The aggregates are classified based on shape, size, density, Geographical Origin. We have discussed the same in detail on the classification of aggregates. Based on their transportation and origin, they are classified as transported soil and residual soil. What is transported soil and residual soil? The deposited soil transported from…
The sand is an inevitable material in construction which is used in almost every activity such as concrete, plastering, PCC, backfilling, earth embankment & many other works. The river sand naturally deposits in the riverbank, formed over many decades from the rock disintegrated and deposits on the river banks. However,…
The river sand is one inevitable material used in construction. It is used almost all stages of construction. Take it right from the foundation you will need them almost at every stage, Be it plastering, concrete & also as a filling material. But due to the high demand for river…
In dry condition, the sand will be flowing free when compressed it could not change its density. If we may try to use other loose soil it could not have defined density value so the experiment will go wrong.