how to calculate cement sand and aggregate |concrete material calculator |calculation of concrete calculation of concrete ...
how to calculate cement sand and aggregate |concrete material calculator |calculation of concrete
calculation of concrete
In this post, we will see about How to calculate the quantity of material for RCC of any grade like
concrete material calculator
Grades of Concrete
M5 1 : 5 : 10
M7.5 1 : 4 : 8
M10 1 : 3 : 6
M15 1 : 2 : 4
M20 1 : 1.5 : 3
M30 Design Mix
M35 Design Mix
M40 Design Mix
M45 Design Mix
High Strength Concrete Grades
M50 Design Mix
M55 Design Mix
M60 Design Mix
M65 Design Mix
M70 Design Mix
M7.5 1 : 4 : 8
M10 1 : 3 : 6
M15 1 : 2 : 4
M20 1 : 1.5 : 3
Standard Grade of Concrete
M25 1 : 1 : 2M30 Design Mix
M35 Design Mix
M40 Design Mix
M45 Design Mix
High Strength Concrete Grades
M50 Design Mix
M55 Design Mix
M60 Design Mix
M65 Design Mix
M70 Design Mix
Procedure for using excel file
Step 1: calculate the total Quantity of beam or slab or column or footing.For better understanding purpose, let us take the live example of a beam of Span 10 m with a cross-section of 0.23m x 0.45m
Total Quantity of Concrete required is 10x.23x.45 =1.05cum
Step 2: Select the grade of concrete based on Environmental exposure condition
Environmental Exposure Conditions
i) Mild ConcreteBuilding surfaces are protected against weather / aggressive conditions, except in coastal areas.
ii) Moderate Concrete
the concrete surface sheltered from rain and freezing other than the mild environmental condition
iii) Severe
Outer surface Concrete exposed to severe rain, alternate wetting and drying or occasional freezing whilst wet or severe condensation. Concrete completely submerged in seawater Concrete exposed to the coastal environment
iv) Very severe
Concrete surfaces in building exposed to seawater spray, corrosive fumes or severe freezing conditions whilst wet Concrete in contact with or buried under aggressive sub-soil/groundwater
v) Extreme
The surface of members in the tidal zone of costal area Members in direct contact with liquid/ solid aggressive chemicals
select grade and enter the ratio for eg: M20--1:1.5:3
Step 3: Enter the total quantity of concrete calculated below we will require output
Step4: output of concrete quantity, cement quantity and aggregate quantity are shown below
MANUAL CALCULATION FOR YOUR REFERENCE
Detailed analysis
on Mix ratio of concrete grade M20 = 1:1.5:3
During concreting
of structural members like footing of column or beam or slab, when we place moisture
concrete, it gets hardened after it attains its initial setting time of 30minutes.
considering similar,
it had been decided upon by Site Engineers to take a factor of safety ranging
from 1.50 to 1.57 to pledge that shrinkage.
the volume of dry
Concrete = 1.50 to 1.57 times the Volume of wet concrete.
Now designs are as
follows for 1cum of concrete work
Ratio Sum =
1+1.5+3=5.5
FOS =1.55 (we
can take any value from that ranges depending upon practicable issues)
So, the Total volume of
wet concrete required is = 1.55cum
Volume of coarse aggregate
Required = (3/5.5) x 1.55 = 0.845 m3
Volume of fine aggregate
Required = (1.5/5.5) x 1.55 = 0.422 m3
Volume of cement =
(1/5.5) x 1.55 = 0.281 m3
= 0.281 x1440 =
405kg
For 1m3 of M20
(1:1.5:3)
coarse aggregate =
0.856 m3
fine aggregate =
0.472 m3
Cement = 8.22 bag.
TNPSC AE & SSC JE CIVIL QUIZ PRACTICE
RCC
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