What is the correct procedure to calculate the concrete pressure of 300 x500 x 1200mm rectangular RC beam on plywood forms(i.e. on the sides of fomworks)?
The ACI Code uses cylinder test while the British standars specifies the cube test to determine the compressive strength of concrete. Which method is more reliable?
Since concrete cannot resist tensile forces and half of concrete beam section is under tension and usually neglected in the design, is it economical not to use high strength concrete for RC beams?
The ACI Code uses cylinder test while the British standars specifies the cube test to determine the compressive strength of concrete. Which method is more reliable?
Concrete usually attains about 90% of its compressive strength after 28 days. What is the approximate 7 days and 14 days compressive strenght of concrete as a percentage of its ultimate compressive strength?
I am constructing a 6 span continuous 500mm x 500mm RC beam with a clear span of 3.6m between RC column supports. I noticed that the top bars at the support(negative moment) is only 3- 20mm diameter deformed bars while the bottom bars is 5 20mm diameter. Is it possible to have more bars in the...
I am concreting a 500mm x 500mm section reinforced concrete beam with an span clear span of 3m between RC columns. How many days it would take before stripping the side forms and the soffit forms?
