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yes because before you pour the concrete down it is a soft liquid................
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Why storage heaters contain concrete blocks though the specific heat capacity of concrete's lower than water?
Because water is a fluid so heat can transfer by convection to the surface of the radiator can be 'radiated' into the room very quickly. Concrete is an aerated solid so can't do this, and is a very poor conductor, so loses its heat a lot more slowly. The concrete bricks are also aerated, and air is an even poorer conductor than concrete.
Why gaps are left in concrete slaps?
With the weather the concrete can expand or contract and the gaps in the concrete are left to allow for this expansion of contraction so the concrete doesn't crack or break.
Define vibration of concrete and its importance?
Vibration is a process by which fully compacted concrete is achived.Importance:Prevents honeycombingPrevents segregation and bleeding of concreteExpuls air from concrete.
How much cubic meter of concrete will use for 1000sft slab?
m20 grade concrete per m3 load
Can concrete turn into a liquid?
no once the concrete gets hard it cannot turn into liquid state again but you can turn concrete powder into liquid by adding water :)
What are types of concrete available in the Philippines?
There are quite a diverse range of concrete types in the Philippines. Some of the types of concrete in this country include Fiber-reinforced concrete, Rapid-setting concrete, Fluid-filled concrete, and Pervious concrete.
Why does concrete have to be placed compacted and finished within a certain time from when the concrete was mixed?
Concrete cures and hardens from chemical reactions over a specific period of time. If the concrete work is not completed within the specific period of time, the fluid concrete will harden and become unworkable.
What material was used in ancient Rome to build large buildings is used today?
They created concrete. However, Roman concrete was different from modern concrete. It was less fluid and had to be layered by hand.
How do you clean up lighter fluid that has spilled all over the concrete?
set it on fire
How do you remove liquid black shoe polish from concrete?
There are various techniques of removing liquid black shoe polish from concrete. You can use rubbing alcohol or dry-cleaning fluid to wipe of the polish from your concrete.
What is permeability for concrete?
Permeability is defined as the property that governs the rate of flow of a fluid into a porous solid.
What material did the roman empire invent to help their structures last?
An empire is not a person. Therefore, the Roman Empire did not invent anything. The Romans invented concrete. Roman concrete was different from modern concrete. It was more fluid and had to be layered by hand. It was just as strong.
Why was the roman colosseum made out of brick and concrete?
The Colosseum was made of stone and concrete, not brick and concrete. Roman concrete was not as fluid as modern concrete and therefore had to be layered by had which could give and impression of bricks. The Romans used concrete for the shell of buildings and covered with other materials, such as a layer tuff (a local rock) stucco and, sometimes, marble. For the Colosseum they used large stones because of the massive size of the structure.
Why storage heaters contain concrete blocks though the specific heat capacity of concrete's lower than water?
Because water is a fluid so heat can transfer by convection to the surface of the radiator can be 'radiated' into the room very quickly. Concrete is an aerated solid so can't do this, and is a very poor conductor, so loses its heat a lot more slowly. The concrete bricks are also aerated, and air is an even poorer conductor than concrete.
Did roman concrete help people?
Roman concrete was neither better nor worse. It was different. It was as strong as modern concrete and it set underwater. It was less fluid and it had to be layered by hand. The Romans did not use reinforced concrete. Roman concrete was made by mixing pozzonlana (an active component of volcanic pumices and ashes) with lime and adding an aggregate to give it body. This varied depending of the consistency or weight. It could be pottery sherds, crushed brick or crushed rock.
Why did the Romans invent concrete?
It was an alternative to stone. Instead of chiseling stones to the proper shape, the concrete was poured into a form and shaped. It was also easier to transport than stones weighing several tons. Concrete is prefab stone.
What marterial did the Romans invent that helped their structures last?
The Romans developed concrete. The Romans were not the first to use concrete, but they developed a new and better type of concrete by using pozzolana, a type of volcanic rock found at Pozzuoli, a suburb of Naples. Roman concrete was so good that it also set underwater and was used to build the docks of ports. Roman concrete was as strong as modern concrete, but was less fluid and could not be poured into moulds. It had to be layered by hand. The Romans also discovered that by adding horse hair, the concrete was less liable to crack while it set and that blood made it more frost resistant. The Romans also laid concrete in arches and vault to exploit the great load bearing capacity of these structures.
