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प्रश्न
What are the differences between Modern cement and ancient cement?
फरक स्पष्ट करा
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 \[\ce{(CaSO4, 2H2O)}\]. |
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या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
संबंधित प्रश्न
For construction purposes ______ cement is the most commonly used cement.
What are the ingredients of cement?
Explain the process of manufacturing cement.
Who invented cement?
______ concrete is a composite material by mixing iron mesh with cement.
Mortar is a paste of cement and sand mixed with water.
Reinforced Cement Concrete is a mixture of cement, sand, and gravel.
Why the cement is called as Portland cement?
What are the uses of cement?
What are the similarities between Modern cement and ancient cement.
