3th WCSET-2014 at Nepal

 

Civil Engineering / Environmental / Architecture / Planning Session:

Title:            Sustainable and Durable Mortar / Concrete using Geopolymer
Authors:       Swagato Das, Purnachandra Saha
Abstract:     The ordinary portland cement (OPC) production involves high emission of greenhouse gases which is very harmful to the environment. Thus an efficient substitute, geopolymer, is being introduced. Geopolymer is an alumino-silicate based binding material produced due to chemical activation reaction between Al and Si compounds. This paper deals with different parameters of geopolymer like materials, compressive strength, curing and durability. Geopolymer contains fly ash, sodium silicate and sodium hydroxide which has reduced the CO2 emission as compared to OPC production Geopolymer has a high tensile and flexural strength, produce less expansion and has lower moduli of elasticity compared to OPC. Geopolymer concrete is a sustainable material and is resistant to fire attack due to its ceramic like property and acid attacks. It is also impact resistant and has a low curing period. Geopolymer is thus considered as an environment friendly material and so can be used for green building construction.

Keywords:      Carbon footprints, Compressive Strength, Curing, Geopolymer, Workability.
Pages:           288-293

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