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Cement consumption per cum of all grades of concrete?
m15- 6.25 m20 - 6.8 m25 - 7.5 m30- 8.5 m35- 9 m40 - 10
What is the ratio of cement sand and aggregate in M30 mix of concrete?
The ratios of cement to sand to aggregate for the different grades of concrete are as follows. M10 has a ratio of 1:3:6. M15 has a ratio of 1:2:4. M20 has a ratio of 1:1.5:3. M25 has a ratio of 1:1:2, but M30 has no set ratio. It is a designed mixture to achieve the stress tolerance desired.
What is the cement content for M7.5 grade concrete?
For M7.5 concrete, the common mix ratio is 1:4:8. This means:1 part cement 4 parts fine aggregates (sand)8 parts coarse aggregates. These ratio is by volume.
How the changing of workability when the concrete mixture containing high aggregate content?
Aggregate to cement ratio is an important thing which affects the workability....! If the aggregate/cement ratio is higher , the concrete will be Leaner. Less quantity of paste is available for lubrication, Hence workability decreases..!! On the other hand if the aggregate/cement ratio is lower, the concrete will be fatty. Higher quantity of paste is available for lubrication. Hence workability increases. ! Thus Higher aggregate content leads to lowering of workability....!
What is the dry density of cement?
The cement density is used in the calculation of the total aggregate content and of the concrete density.Normal concrete has a density around 2400 kg/cubic meter or 4048 lb/cubic yard. There are many different kinds of concrete, many of which are much lighter. Cement is the liquid (or paste like) form, and tends to be much heavier than when it has cured into concrete. "Cement" is not concrete, but can be used to make concrete by mixing with sand, stone and water. The density of cement is about 3120kg/m3.
How many bags cement to make 1 cubic meter of M15 grade cement concrete?
15 milligrams
What is C3S content in cement?
The content of C3S in cement depends on type of cement.If it is Ordinary Portland Cement, then the C3S content is 95%; andif it is Pozzolona Portland Cement, c3s is 65% - 70%
What heat cement?
The lime content that is found in cement causes cement to heat.
What is the number of bags of cement required for 1 cubic meter of M15 grade cement concrete?
M 15 grade proportion - 1:2:4 (cement:FA:CA)Cement required in kgs - 325 kg per cu.mNo. of bags required - 6.50
What is C3S in cement?
The content of C3S in cement depends on type of cement.If it is Ordinary Portland Cement, then the C3S content is 95%; andif it is Pozzolona Portland Cement, c3s is 65% - 70%
What is the weight of cement in one cubic meter of M25 concrete?
S.NoItems PROPOSED MIX DESIGNM10M20M25M30M35M401Cement(OPC)2303203503804204202Coarse Aggregates320mm705721710680645634412mm4103783744044304535Manufactured Sand8407977857537167256Admixture11.82.22.633.67W/C0.720.50.460.430.40.38
Is white cement stronger than grey cement?
YesWhite cement is stronger than grey cement.Due to low content of iron oxide and high content of limestone the strength is greater .
Cement consumption per cum of all grades of concrete?
m15- 6.25 m20 - 6.8 m25 - 7.5 m30- 8.5 m35- 9 m40 - 10
How many bags of cement in a cubic meter?
For M10 (1:3:6) Grade of concrete cement bag consumed = 4.4 bags/cum M15(1:2:4) Grade of concrete cement bag consumed = 6.6 bag/cum M20(1:1.5:3) Grade of concrete cement bag consumed = 8.2 bag/cum
What can you add to Portland cement to make it sulphate resistant?
The sulphate resistant cement is made with low C3A content is found to be effective.Such cement with low C3A and comparitively low C4AF content is known as sulphate resisting cement.This cement has a high silicate content.The specification generally limits the C3A content to 5 percent.
The number of cement bags needed to build five cubic meter?
It depends on the Grade of Concrete. general grades are M15, M20, M25 etc. here are the nos. of bag required -------------------Bag for 1 cum---------------Bag for 5 cum M15------------------- 6.4----------------------------32 M20-------------------- 8-----------------------------40 M25--------------------12----------------------------60
Density of mix M20 concrete?
For nominal Mix Cement consumption for M25 will be 570 kg per cum. and for Design Mix it can be optimised to 510 kg per cum.
