Consider the following statements about the cement industry:
Which of the above statement(s) is/are incorrect?
Consider the following statements about the cement industry:
Which of the above statement(s) is/are incorrect?
The correct option is C Only 1 &3
India is the second largest producer of cement in the world .The Government of India has decided to adopt cement instead of bitumen for the construction of all new road projects on the grounds that cement is more durable and cheaper to maintain than bitumen in the long run . Availability of fly-ash (from thermal power plants) and use of advance technology has increased production of blended cement. The environment-friendly blended cement is more cost-efficient to produce, as it requires lesser input of clinker and energy.
The difference between ordinary cement and white cements are thus as follows: The amount of chromium, manganese, iron compounds is significantly less in white cement in comparison to gray cement Production of white cement consumes significantly more energy in comparison to gray cement Kindly note that the setting behaviour and strength development of white cement is almost equivalent to grey cement. Further, Gypsum is used in the making of both white cement and ordinary grey cement. White cement production needs usually 40% higher energy than the normal grey cement and this contributes to the high price of white cement.
Only 1 &3
India is the second largest producer of cement in the world .The Government of India has decided to adopt cement instead of bitumen for the construction of all new road projects on the grounds that cement is more durable and cheaper to maintain than bitumen in the long run . Availability of fly-ash (from thermal power plants) and use of advance technology has increased production of blended cement. The environment-friendly blended cement is more cost-efficient to produce, as it requires lesser input of clinker and energy.
The difference between ordinary cement and white cements are thus as follows: The amount of chromium, manganese, iron compounds is significantly less in white cement in comparison to gray cement Production of white cement consumes significantly more energy in comparison to gray cement Kindly note that the setting behaviour and strength development of white cement is almost equivalent to grey cement. Further, Gypsum is used in the making of both white cement and ordinary grey cement. White cement production needs usually 40% higher energy than the normal grey cement and this contributes to the high price of white cement.
