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Why is it that that concrete is stronger at bottom of column than on top?
Wiki User
∙ 16y ago
when concrete is vibrated while pouring in to the form work, the cement slurry part tends to get drained through voids between aggregates and the richest part of cement slurry is detained at bottom portion of column. this causes a strong, dense, and void free concrete which ensures better compressive strength than the concrete on top portion of column.
Wiki User
∙ 16y ago
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Why tensile strength is higher than shear strength?
because of how the molecules are arranged, most materials are a lot stronger in tension than in shear. This is not true for all materials, like chalk or concrete, which are much stronger in shear than in tension.
What does 25 mpa concrete mean?
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.
What is the purpose of strength reduction factors and why they are smaller for columns than beams?
the purpose of strength reduction factor is used to take into account the uncertainties of material strength, inaccuracies in the design equations, approximations in analysis, possible variations in dimension's of the concrete section and placement of reinforced, the importance of member of structure of which they are part, an so on. Column is designed stronger than beam it means during strong earthquake column member remain elastic so it can provide stability and strength of the stories above.
What are Advantage pre cast concrete slab than insitu concrete?
What are Advantage pre cast concrete slab than insitu concrete?
What is the purpose of compression reinforcement in beams?
Steel is stronger than concrete. By adding some reinforcement in the compression zone of a beam, it's bending strength can be increased without increasing the size of the beam. The steel increases the compression strength, while the concrete prevents the slender steel bars from buckling.
Is wet concrete stronger than dry concrete?
no
What is stronger concrete or Mortar?
Concrete is stronger than mortar.Because mortar is a mixture of cement, sand and water but concrete is a mixture of cement, sand, gravel and water. Thus concrete forms a stiff mix than mortar.Hence the concrete is more stronger than cement.
Is concrete heavier than soil?
not but your thi bone is stronger than concrete
How strong are human thigh bones?
They are stronger than concrete. They are stronger than concrete.
What is stronger than concrete?
steel
Is bamboo stronger than concrete?
yes
Is human thigh stronger than concrete?
yes
Why is concrete better than wood?
concrete is better than wood because concrete is much stronger and that's why most of the building are made out of it
Why is concrete stronger then mortar?
Concrete is stronger than mortar because mortar is a mixture of cement, sand and water but concrete is a mixture of cement, sand, gravel and water. Thus concrete forms a stiff mix than mortar.
What grass is stronger than concrete per sq inch?
hemp
What happens to the atomic number from top to bottom in a column?
The atomic number at the top is always less than the atomic number at the bottom of the column
Is it true that concrete can absorb more force without breaking than can bone?
That depends upon how much concrete you have, but generally speaking, concrete structures are stronger than the human body.
