As per ratio 1:4:7, how can we calculate the quantity of materials for 1 cum of concreate, pls derive with equation

Answers were Sorted based on User's Feedback



As per ratio 1:4:7, how can we calculate the quantity of materials for 1 cum of concreate, pls deriv..

Answer / snigda

Absolute Volume Method - 1:4:7
Material Wt of material per bag of cement Specific Gravity Calculation Absolute Volume of material
Cement 50 Kgs 3.15 50/(1000*3.15) 0.016
Fine Aggregate 200 Kgs 2.65 200/(1000*2.65) 0.075
Coarse Aggregates 350 Kgs 2.8 350/(1000*2.8) 0.125
Water 25 lts 1 25/(1000*1) 0.025
0.241
Assuming 1% air content 0.00241 Total absolute volume 0.244

Cement per cum of concrete 1/0.244 4 bags/ cum 205 kgs 0.14 cum
Sand per cum of concrete 4/0.244 16 bags/ cum 820 kgs 0.51 cum
Coarse aggregate 7/0.244 29 bags/ cum 1434 kgs 0.80 cum

Is This Answer Correct ?    5 Yes 1 No

As per ratio 1:4:7, how can we calculate the quantity of materials for 1 cum of concreate, pls deriv..

Answer / mkumar

ratio 1:4:7,
sum= 12
total vo. of ingredient of using= 1.57
1x1.57/12=0.1301m^3

0.00013x1440=0.1883kg

0.1883/50 =0.0037bags cement

sand- 4x1.57/12= 0.5233m^3

aggregate- 7x1.57/12= 0.9158m^3

Is This Answer Correct ?    2 Yes 0 No

Post New Answer

More Civil Engineering Interview Questions

Why size of brick used at site is different from its standard size ?

1 Answers  


Beam test is carried out for?

8 Answers  


where cross hairs in surveying telescope are fitted

2 Answers  


How to Calculate no.of bricks in 1sq.mtr

3 Answers   SADC,


Define What is diversion tunnel in a dam?

0 Answers  






how can calculate material in 1:1.5:3 ratio in concrete

1 Answers  


What materials were used to build the golden gate bridge?

0 Answers  


What are the types of Road in India?

16 Answers   SA construction,


What is proportion of PCC Grade G?

0 Answers  


How its coming concrete grade M 20 means 1:2:4. how it coming 1:2:4.

0 Answers  


What is Current Shuttering rate (labour + materials) for Columns, Beam & Slab on Item rate basis ?

3 Answers   Atul, AVR, Pioneer,


Explain different types of rcc pipes.

0 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5085)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16632)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1095)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)