IITM researchers discover how to strengthen structures
Q. Study by IIT-M has shown proportions of byproducts such as fly ash and ground granulated blast furnace slag can ________ structures like building and bridges.- Published on 16 Nov 15a. Strengthen
b. Weaken
c. Solidify
d. Liquify
ANSWER: Strengthen
A series of tests conducted on various kinds of concrete by the civil engineering department, IIT-M has found that proportion of byproducts such as fly ash and ground granulated blast furnace slag added to concrete mix can reinforce structures and make them more durable. The researchers have recommended that cement used for durable construction should be replaced with or contain 15% fly ash/30% slag along with low water content use in the concrete. Thermal power plants in the nation generate 200 million tonnes of fly ash within a year, yet only 30 million tonnes have been utilised.
