Advertisements
Advertisements
प्रश्न
What are the differences between Modern cement and ancient cement?
फरक स्पष्ट करा
Advertisements
उत्तर
| Ancient cement | Modern cement |
| It was developed by the Romans during the Roman empire. |
It was developed by a British scientist, John Smeaton. |
| It was prepared by mixing volcanic ash in moistened lime. | It is made up of materials like lime \[\ce{(CaO)}\], clay, and silica, along with some other oxides of aluminium, iron, magnesium, and gypsum \[\ce{(CaSO4, 2H2O)}\]. |
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 15: Materials we Use - Exercise [पृष्ठ ९७]
संबंधित प्रश्न
For construction purposes ______ cement is the most commonly used cement.
What are the ingredients of cement?
What will happen if cement is not used in making concrete?
What are the ingredients of the cement?
Explain the process of manufacturing cement.
______ concrete is a composite material by mixing iron mesh with cement.
Reinforced Cement Concrete is a mixture of cement, sand, and gravel.
What are the uses of cement?
Analogy:
______: Mortar:: Construction of bridges: Concrete.
What are the similarities between Modern cement and ancient cement.
