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Mortar is composed of cement and sand, and concrete is composed of cement, sand, and gravel.

Mortar is composed of cement and sand, and concrete is composed of cement, sand, and gravel. Correct Answer True

Cement is the binding element in both concrete and mortar. It is made most commonly of limestone, clay, shells, silica sand and other materials. Concrete is composed of cement, sand, and gravel or other fine and coarse aggregate. The addition of water activates the cement, which is the element responsible for binding the mix together to form one solid object. Mortar is composed of cement and sand. When water is mixed in with this product, the cement is activated. Whereas concrete can stand alone, mortar is used to hold together bricks, stones or other such hardscape components.

Related Questions

Consider the following related to sand in mortars: 1. It increases the volume of the mortar mix. 2. It increase the strength of masonry. 3. The cost of the mortars is reduced. 4. Shrinkage of the mortar is almost prevented. 5. Surkhi can replace sand in cement mortar used in plastering and this modified mortar is more durable. Which of the above are relevant to ‘sand’ in mortar?
In the following question, sentences of a paragraph have been jumbled and labelled as A, B, C and D. You are required to rearrange the jumbled sentences of the paragraph and mark your response accordingly by selecting the correct option. A: Concrete is the most widely used material in existence and is only behind water as the planet's most-consumed resource. B: Cement mixed with fine aggregate produces mortar for masonry, or with sand and gravel, produces concrete. C: Cement is seldom used on its own, but rather to bind sand and gravel (aggregate) together.  D: A cement is a binder, a substance used for construction that sets, hardens, and adheres to other materials to bind them together.
Assertion A : For identical strength, a composite cement-lime mortar is preferred over cement mortar.Reason R : Composite cement-lime mortar has higher drying shrinkage than cement mortar.Select your answer based on the codes given below. Codes:
Consider the following statements related to composite mortar: 1. Addition of lime to cement mortar improves its workability 2. Composite mortar is obtained by adding 10% by weight of cement and mixing with water. 3. Composite mortar is not preferred in tall buildings 4. Mechanical grinding is essential for developing composite mortar. Which of the above statements are true in this case?
A mixture of 50 kg of cement and gravel contains 10% of gravel. How many kg of gravel must be added to make the gravel content 28% in the new mixture?
A mixture of 50 kg of cement and gravel contains 10% of gravel. How many kg of gravel must be added to make the gravel content 28% in the new mixture?
Consider the following statements:
(i) Masonry in rich cement mortar though having good strength with high shrinkage is much liable for surface cracks.
(ii) Lime mortar possesses poor workability and poor water retentivity and also suffers high shrinkage.
(iii) Masonry in lime mortar has better resistance against rain penetration and is less liable to crack when compared to masonry in cement mortar.
Which of these statements are correct?
Which of the following statements are correct with regard to cement mortar? 1. Workability of cement mortar can be improved by addition of lime. 2. Fly-ash cement is economical in plastering jobs. 3. Addition of saw dust improves workability 4. Sand in mortar can be replaced by finely crushed fire bricks
The ratio of sand and gravel in a mixture is 12 ∶ 5 while that between gravel and cement is 8 ∶ 16. What is the ratio of sand and cement in the mixture?
The ratio of sand to gravel in a mixture is 7 : 8 while that between gravel and cement is 6 : 7. What is the ratio of sand to cement in the mixture?