weight of 1 cubic mitre of concrete
The Concrete mixing ratio for M35 grade concrete as per IS Mix design is1:1.6:2.907 (cement:Fineaggregate:Coarse aggregate)The ratio obtained is as per design calculations by considering the grade of aggregates and the type of cement used.The Water/cement ration is 0.43
It can be used, provided you know the maximum weight on vehicles on it. From experience, 30 ton trailers can run comfortably on a 200mm thick g-25 concrete mix..
For M25 grade concrete the seven days crushing for site condition shall be not less than 67 % of M25, i.e not less than 16.75 N/mm2 But for target strength of M25 for mix design taken i.e for M25 it is 32 and the 7 days strength shall not be less than 22 N/mm2
They're talking about compressive strength - the amount of force that can be applied to a defined area of the concrete before it fails. 25 MPa concrete in the states would be 3625 psi concrete - very ordinary stuff; the kind in bags at Home Depot is stronger than that.
25 mm cover should be given
The Concrete mixing ratio for M35 grade concrete as per IS Mix design is1:1.6:2.907 (cement:Fineaggregate:Coarse aggregate)The ratio obtained is as per design calculations by considering the grade of aggregates and the type of cement used.The Water/cement ration is 0.43
It can be used, provided you know the maximum weight on vehicles on it. From experience, 30 ton trailers can run comfortably on a 200mm thick g-25 concrete mix..
The ratio of cement, sand and crushed stone in M 25 grade concrete is 1:1:2.In this grade of concrete a compressive strength not less than 25 N/mm2 is achieved in 28 days.
The mixes of grades M5 M10, M15, M20 and M25 correspond approximately to the mix proportions (1:4:8), (1:3:6), (1:2:4), (1:1.5:3) and (1:1:2) respectively.
Volume componentsGrade 20 concrete 1:2:4 (cement:sand:aggregate)Grade 25 concrete 1:1.5:3 (cement:sand:aggregate)Grade 30 concrete 1:1:2 (cement:sand:aggregate)See related link below for more info
You mix 1 of something with 25 of something else.
i wouldn't think so! this is a 55lb. bag of concrete. water weighs 8lbs. per gallon. so you would need to figure out how many gallons of water you are going to use. should be some type of guide line on bag. but remember some of that water will evaporate. so an exact weight would be hard to figure, until the concrete was cured and actually weighted.
stress in old concrete
For M25 grade concrete the seven days crushing for site condition shall be not less than 67 % of M25, i.e not less than 16.75 N/mm2 But for target strength of M25 for mix design taken i.e for M25 it is 32 and the 7 days strength shall not be less than 22 N/mm2
The Civil Engineering Data Standards manual states the density of many grades of concrete. Standard density for fresh M-25 concrete is: 2414 Kg/ M3.
Changing the scale of the car will change the force of the crash.
Cultivating Life - 2006 Concrete 4-25 was released on: USA: 3 October 2009