Quantity Calculation of Cement and Sand in Mortar

Quantity calculation of cement and sand in mortar is used to estimating purpose of construction project. In this article we will discuss about "Quantity calculation of cement and sand in mortar". Mortar is a workable paste used to bind construction blocks together and fill the gaps between them. The word comes from Latin moratorium meaning crushed. Mortar may be used to bind masonry blocks of stone, brick, etc. Mortar becomes hard when it sets, resulting in a rigid aggregate structure.



Quantity of cement mortar is required for rate analysis of brickwork and plaster or estimation of masonry work for a building or structure. Cement mortar is used in various proportions, like 1:1, 1:2, 1:3, 1:4, 1:6, 1:8 etc...

Quantity calculation of cement and sand in mortar

Calculation of quantity of cement mortar in brickwork and plaster,

For the calculation of cement mortar, let us assume that we use 1m3 of cement mortar. Procedure for calculation is,

1. Calculate the dry volume of materials required for 1m3 cement mortar. Considering voids in sands, we assume that materials consists of 60% voids. That is, for 1m3 of wet cement mortar, 1.6m3 of materials are required.

2. Now we calculate the volume of materials used in cement mortar based on its proportions.

Let’s say, the proportion of cement and sand in mortar is 1:X, where X is the volume of sand required.




Then, the volume of sand required for 1:X proportion of 1m3 cement mortar will be,

Quantity calculation of cement and sand in mortar

3. Volume of cement will be calculated as,

Quantity calculation of cement and sand in mortar

Since the volume of 1 bag of cement is 0.0347 m3, so the number of bag of cement will be calculated as,

Quantity calculation of cement and sand in mortar

Example;

For cement mortar of 1:6, the quantity calculated will be as below,

Sand quantity,

Quantity calculation of cement and sand in mortar

Quantity of cement (in bags),


Volume of cement = 

There no of bags required == 6.58 bags.