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Construction Planning & Management
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Activity:
Question posted: 11 20 2008 08:50:56 +0000,
2 answers, 328 views, last activity
07 06 2010 20:18:08 +0000
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Concrete has a major green attribute because it is strong and durable. But it also has major effects on the environment , because cement production uses a lot of energy, which generates greenhouse gases. So to control these green house gases one has to look out for other options for cement which constitutes large chunk of the construction materials used. So what are the Substitutes??
2 Answers for "What are the different forms of cement substitute??"
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Not Rated
Slag is a by-product from production of both iron and steel, and ground iron slag from blast furnaces can be used for making concrete. Because the demand for the product is rising while the supply is falling, new grinding plants are coming on line to process imported slag. The added energy used to ship and grind the slag makes it somewhat less energy-saving than fly ash, but far better than portland cement.
Not Rated
Fly ash - It is one of the byproducts of burning coal to create electric power, there are different classes of fly ash like Class C and Class F material which differ from each other and from source to source with regard to strength, rate of strength gain, color and weatherability.
So this is one of the substitutes for cement which can be used.
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