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Can concrete turn into a liquid?
Concrete cannot turn into a liquid under normal conditions. However, concrete can behave like a liquid when it is freshly mixed and in its fluid state before hardening. Once concrete cures and hardens, it becomes a solid material that cannot revert back to a liquid state without undergoing significant changes.
Why storage heaters contain concrete blocks though the specific heat capacity of concrete's lower than water?
Storage heaters use concrete blocks because they have a high thermal mass, allowing them to absorb and retain heat efficiently. While water has a higher specific heat capacity than concrete, the concrete blocks are more practical and cost-effective for storing thermal energy in a heater system. The concrete blocks can slowly release the stored heat throughout the day, providing consistent warmth.
What is the volume of 1Kg of concrete?
The volume of concrete varies depending on its density. On average, 1 kg of concrete has a volume of about 0.00035 cubic meters.
Can electrical current flow through concrete?
Yes, electrical current can flow through concrete as it is a good conductor of electricity. However, the resistance of the concrete will depend on its moisture content and composition. Generally, wet concrete will conduct electricity better than dry concrete.
Is concrete a conductor or a insulator?
Concrete is a poor conductor of electricity, so it is considered an insulator. Electricity does not flow easily through concrete due to its high resistance.
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 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.
How do you clean up lighter fluid that has spilled all over the concrete?
To clean up lighter fluid spilled on concrete, first absorb as much of the fluid as possible with paper towels or rags. Then, scrub the area with a mixture of water and dish soap or a commercial degreaser. Rinse thoroughly with water afterwards.
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.
Can concrete turn into a liquid?
Concrete cannot turn into a liquid under normal conditions. However, concrete can behave like a liquid when it is freshly mixed and in its fluid state before hardening. Once concrete cures and hardens, it becomes a solid material that cannot revert back to a liquid state without undergoing significant changes.
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.
