difference between concrete and cement
There is not much difference between concrete and cement. The mixture of aggregates and paste is basically the concrete, cement is an ingredient of concrete. The aggregates are sand, gravel, and crushed stone and the paste is Portland cement and water. As concrete when getting older it gets stronger, by volume cement comprises 10 to 15% of concrete mix.
In general, the binder that holds other materials tightly is called cement and the mixture of sand, gravel, small rocks with any type of cement and water is called concrete.
Cement | Concrete |
| Cement is made of clay & limestone | Concrete is made of water, sand, rocks, and cement |
| Cement is glue or binding material | Concrete is a construction material |
| Cement can only mix in small-batches | Concrete can be mixed at the large quantity |
| Cement can’t be used for walls and in sidewalks | Concrete is strong for walls, sidewalks and for foundation |
| Alternating the chemical compounds, color and drying time can be altered | By using a tint, color can only be changed |
| Cement is used in mortar & concrete | The final product is concrete |
| Before concrete, cement was created | After cement concrete was developed |
CONCRETE:
CONCRETE:From mixing cement, aggregates, water, and admixture together, it results in the final concrete. It is initially very good in the wet state and become solid over time and gaining strength and durability.
Materials Used In Concrete:
The concrete is basically made from four ingredients that are mixed with a specific ratio.
1: Cement:
The binder used to hold the other materials is known as cement.
2: Aggregates:
Fine aggregates like sand and coarse aggregates which are larger than 3/8” in diameter.
3:Water:
For quality control of concrete manufacturing, water is the most important element. The water is needed for the two purposes;
- Chemical reaction with cement to create hydration
- For workability like the ratio of water to cement
4: Admixture:
The ingredients that are added to mix immediately before or during mixing other than water, cement, and aggregates.
Types Of Concrete:
There are many types of concrete some are as below:
1: Lime concrete:
The concrete uses lime as binding material is called lime concrete. The lime concrete is usually used in roofing and foundation.
The usual proportion is 1:2:5.
2: Cement Concrete:
The most commonly used concrete in engineering constructions is cement concrete. It consists of cement, sand and stone chips.
Usual proportion is 1:3:6 or 1:2:4.
3: Reinforced Cement Concrete:
Steel reinforcement is added for the tensile strength of the concrete. Tensile stress reduces under compression due to RCC prestressed.
High Strength Concrete:
This type of concrete has high compressive strength that is over 6000 pounds per area unit. This can be done by lowering water-cement quantitative relation to a minimum of 0.35.
High-Performance Concrete:
High-performance concrete has properties that are higher than the other regular concrete mixes. This type of concrete has durability, increased strength, workability, compaction, long-run mechanical properties, toughness, volume stability, and density.
CEMENT:
The binder material that holds other materials tightly is called cement.
Cement is a fine powder made by crushed minerals like clay that function as binder and limestone. Cement can be made from the verity of materials, in these days Portland cement is the most common cement which is used and lowest in the cost.
Types Of Portland Cement:
There are four types of Portland cement.
Type I: where special properties are not required, this type of cement is good for general purposes.
Type II: Type II has sulfate resistance and makes up the majority of cement.
Type III: This cement has a high early strength, it gain strength faster.
Type IV: This type has a low heat of hydration and used in large or big construction work.
Type V: This type of cement is only used for sulfate resistance. It develops strength at a slower rate.
Manufacturing Process:
From quarry by blasting, the limestone is extracted in the first step of making cement. Materials are reduced in size and for processing transported to a plant. Then to produce the raw meal which is uniform in size and chemistry, other materials like clay, sand, iron ore, gypsum, and minerals are ground with limestone. Then the raw meal is processed in a kiln that exceeds 2,642 degrees Fahrenheit.
For new compounds to be formed that contribute to the strength of cement, the raw meal in kiln allows for several structural changes and chemical reactions to take place. Then a laboratory collects a sample of clinker from the kiln to check consistency, strength, heat of hydration and fineness. Then the clinker is cooled and it is been ground into the cement powder.
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