FAQ: Why Use Concrete?

What is the use of concrete?

Concrete is the most commonly used man-made material on earth. It is an important construction material used extensively in buildings, bridges, roads and dams. Its uses range from structural applications, to paviours, kerbs, pipes and drains.

What are the advantages and disadvantages of concrete?

The deterioration of concrete is not appreciable with age. Concrete makes a building fire-safe due to its noncombustible nature. Concrete can withstand high temperatures. Concrete is resistant to wind and water.

Why is concrete good for construction?

Durability. The unyielding nature of concrete makes it a durable, long-lasting material choice. It resists erosion, fire, rotting, rusting, and weathering with relative ease, requiring minimal maintenance and repair. Ergo, concrete boasts a lifespan that exceeds many other types of building material.

What are the 4 main properties of concrete?

The properties of hardened concrete

  • Mechanical strength, in particular compressive strength. The strength of normal concrete varies between 25 and 40 MPa.
  • Durability.
  • Porosity and density.
  • Fire resistance.
  • Thermal and acoustic insulation properties.
  • Impact resistance.
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What concrete means?

Concrete is that pourable mix of cement, water, sand, and gravel that hardens into a super-strong building material. Sidewalks, foundations, and highways are all made of concrete. When used as an adjective, concrete also means solid.

What is the disadvantage of concrete?

The following are the disadvantages of concrete: Due to low tensile strength, concrete is required to be reinforced to avoid cracks. In long structures expansion joints are required to be provided if there is large temperature variance in the area.

Is concrete waterproof?

Concrete is not waterproof. Despite not immediately seeing water leak through a slab of concrete, water does get through the spaces in between its particles. And water can break the concrete down eventually, causing it to chip off or leak through and allowing more water to cause more damage.

How long will concrete last?

For larger projects such as buildings and homes, the concrete should last 30 to 100 years or more depending on the construction style as well as method of installation. Many times, a concrete shell of a building or home can be reused when the other materials such as wood begin to deteriorate.

Are concrete homes good?

They can provide healthy environments with fewer air-borne allergens, molds and contaminants than most frame houses, and they have cleaner indoor air. Economic value. Although concrete houses usually cost more to build than frame houses, once constructed, they are veritable saving machines due to lower utility costs.

Why are concrete houses Bad?

The concrete can be prone to defects, leading to structural issues later on. It is relatively easy for prospective home buyers to spot issues of structural weakness or mould and damp during a viewing, however, issues regarding non-standard construction are often difficult to note.

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Which is better cement or concrete?

Concrete is more durable than cement.

Yes, concrete can last hundreds of years, but cement is much less durable. To use an analogy, cement is to concrete as milk is to ice cream. Sure, ice cream has milk in it, but it isn’t milk. It’s actually much better.

What are the qualities of good concrete?

What is good quality concrete?

  • Grades (M20, M25, M30 etc.)
  • Compressive strength.
  • Characteristic Strength.
  • Tensile strength.
  • Durability.
  • Creep.
  • Shrinkage.
  • Unit weight.

Why is concrete cheap?

That’s because modern concrete is basically a mixture of water, aggregate (i.e., small rocks), sand and Portland cement. But concrete has attributes that cement alone does not. First, it’s more economical. Rock and sand are cheaper than cement alone, so mixing them in makes concrete cheaper than pure cement.

What are the properties of fresh concrete?

Following are the properties of fresh concrete.

  • Workability.
  • Segregation.
  • Bleeding.
  • Plastic shrinkage.
  • Setting.
  • Temperature.
  • Water Cement Ratio.

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