how to calculate 1:2:4 ratio concrete cement, sand, metal
and water please give me brief calculation

Answer Posted / chetan khairnar

Note: For 1m3 wet concrete = 1.52m3 dry concrete approximately
SP.Wt of concrete= 1440 kg/m3 (or) 1.44 t/m3
1 bag of cement = 50 Kg
Example:- for 20 m3 volume of concrete.

a) Quantity of cement required = (1:2:4)
=1/(1+2+4) x 1.52 × 20 = 4.14m3 x 1440/50 =119.26 bags

b)Quantity of Sand required = (1:2:4)
=2/(1+2+4)×1.52x20=8.28m3 OR =4.14 x 2=8.28 m3.

c)Quantity of course aggregate = (1:2:4)
=4/(1:2;4) x 1.52 x20 = 16.56m3 OR =4.14 x 4= 16.56m3.

If qty. calculate in Kg just multiply by its Sp. wt of sand
or aggregate.

Is This Answer Correct ?    68 Yes 28 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what is the max. and mim. height of vertical post in informatry sign board which is used in highway projects.

2213


what is the max. area can we apply the plate load test ?

1936


why are you joining in this (applied post) job and your aim for this job

2122


psc girder detail

2718


Explain what is Hybrid Foundation?

746






The building has 12 columns of 12x9 in 3 rows of 4 each in a plot of 50'x30', The central row is strengthened with 16mm twisted rods. The roof area is 1500 sft including balconies. calculate the load factor per sft. Also indicate the number of roofs the building can withstand.

2312


For what purpose bedding is used under storm water drains?

667


How much for the BRC lapping in full yield and half yield < and which table to get it ?

2032


what mean By core Billing

1866


what might be the problem faced in the near future if the M-sand is used in the place of river sand during wall plastering? (As per IS)

1522


What is fineness modulus ? and its sieve # ?

714


Give me an example of a time when something you tried to accomplish and failed.

2497


How can calculate the requirement of steel bars of rcc slab for 1100 sq ft?

1495


What are the different theories of failure under static load?

732


Form where IS456 is adopted in 1978?

1499