Friday, October 12, 2018

Thumb Rules For Estimation of the Quantity of Material


Thumb Rules For Estimation of the Quantity of Material Every Civil Engineer uses Thumb Rules For Estimation of the Quantity of Material. By using thumb rules we can get rough quantity very easily and fastly. Thumb rules don’t give us exact value but these values are very near to accurate data so we can adopt it and save our time.
Thumb Rules For Estimation of the Quantity of Material

What is Thumb Rules For Estimation of the Quantity of Material
Thumb Rules For Estimation of the Quantity of Material is some constant data which we drive from our technique and experience of practical world. Just for example 0.2 or 0.5 multiplying  by covered area by thumb rule we can get some specific quantity.
To understand properly let’s see the example-
EXAMPLE-
Let’s assume we have completed four house constrictions. All four houses have 1200 square feet covered area. In each house construction different quantity of cement, aggregate, sand is used. So we will develop Thumb Rules For Estimation of the Quantity of Material (cement, aggregate and sand).
S.N.
Cement (Bags)
Aggregate (feet3)
Sand (feet3)
House 1
600
1700
1800
House 2
610
1600
1900
House 3
590
1800
2100
House 4
585
1500
2000

NOTE- Above mentioned values are just for examples not based on any specified design.
To develop Thumb Rules For Estimation of the Quantity of Material we will take avareage value of all materials.
CEMENT-
Average=(600+610+590+585)/4
=596.25 Bags
So we can say 596.25 bags are used averagely So now we find usage of cement in 1 square feet area.
Covd Area=Material Used
1200 feet2 Area=596.25 Cement Bags
1 feet2 = (596.25/1200)
=0.496 bags
So 0.49 is our Thumb Rules For Estimation of the Quantity of Cement.
Now if we need to calculate quantity consumption of cement in 2500 square feet area. We have to just multiply area with 0.49 to get quantity of cement.

SAND-

Average= 1800+1900+2100+200)/4
=1950 feet3
So we can say 1950 feet3 Sand is used averagely So now we find usage of sand in 1 square feet area.
1200 feet2  Area  =1950 feet3 Sand
1 feet2 = (1950/1200)
=1.62
So 1.62 is our Thumb Rules For Estimation of the Quantity of SAND.
Now if we need to calculate quantity consumption of sand in 2500 square feet area. We have to just multiply area with 1.62 to get quantity of sand.
AGGREGATE-
Average= (1700+1600+1800+1500)/4
=1650 feet3
So we can say 1650 feet3 Aggregate is used averagely. So now we find usage of Aggregate in 1 square feet area.
1200 feet2  Area  =1650 feet3 Aggregate
1 feet2 = (1650/1200)
=1.37
So 1.37 is our Thumb Rules For Estimation of the Quantity of AGGREGATE.
Now if we need to calculate quantity consumption of aggregate in 2500 square feet area. We have to just multiply area with 1.37 to get quantity of aggregate.
Conclusion-
Thumb Rules For Estimation of the Quantity of Material is the self-develop method by experience. It helps us to do work fastly at site. It gives us approximate value which is nearly correct but not exact. how to calculate the quantity of shuttering.,billing of quantity for estimation,rules of thumb for cement,billing of quantity for engineers,how to make billing of quantity for estimation.,quantity estimation,calculation of quantity in plasterf,thumb rule,quantity analysis of material in civil engineering,thumb rules for engineering,how to make billing of quantity,rules of thumbs
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