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Durability of Geopolymer Concrete Using Recycled Coarse Aggregate Incorporating Fly Ash-GGBFS
Geopolymer is a sustainable, eco-friendly cementitious material produced from alumina silica-rich commercial byproducts such as ground granulated blast furnace slag (GGBFS), fly-ash (FA), etc., and alkali materials such as sodium silicate, sodium hydroxide, etc. On the other hand, the use of recycled coarse aggregate reduces the demand for natural coarse aggregates. Utilizing recyclable materials can reduce the negative environmental effects of mining and quarrying operations and help preserve mineral resources. By using these wastes as cementitious ingredients, geopolymer-based concrete has the potential to solve critical challenges regarding the storage and disposal of hazardous waste from the mining and processing sectors. Additionally, the serviceability of structural components is significantly impacted by the durability performance of concrete specimen. Durable concrete lowers the possibility of concrete spalling against foreign chemical attack and prevents corrosion of embedded reinforcing steel. The durability performance of recycled aggregate based geopolymer concretes manufactured using ground granulated blast furnace slag (GGBFS)-fly ash (FA) is investigated and compared with OPC concrete specimens. Using GGBFS-FA-based geopolymer concrete mixes, the durability characteristics including water absorption, acid attack, chloride permeability, and carbonation are examined for up to 28 days. The influence of using recycled aggregate and GGBFS-FA on the durability performance of geopolymer concrete mixes are analyzed and reported.
Durability of Geopolymer Concrete Using Recycled Coarse Aggregate Incorporating Fly Ash-GGBFS
Geopolymer is a sustainable, eco-friendly cementitious material produced from alumina silica-rich commercial byproducts such as ground granulated blast furnace slag (GGBFS), fly-ash (FA), etc., and alkali materials such as sodium silicate, sodium hydroxide, etc. On the other hand, the use of recycled coarse aggregate reduces the demand for natural coarse aggregates. Utilizing recyclable materials can reduce the negative environmental effects of mining and quarrying operations and help preserve mineral resources. By using these wastes as cementitious ingredients, geopolymer-based concrete has the potential to solve critical challenges regarding the storage and disposal of hazardous waste from the mining and processing sectors. Additionally, the serviceability of structural components is significantly impacted by the durability performance of concrete specimen. Durable concrete lowers the possibility of concrete spalling against foreign chemical attack and prevents corrosion of embedded reinforcing steel. The durability performance of recycled aggregate based geopolymer concretes manufactured using ground granulated blast furnace slag (GGBFS)-fly ash (FA) is investigated and compared with OPC concrete specimens. Using GGBFS-FA-based geopolymer concrete mixes, the durability characteristics including water absorption, acid attack, chloride permeability, and carbonation are examined for up to 28 days. The influence of using recycled aggregate and GGBFS-FA on the durability performance of geopolymer concrete mixes are analyzed and reported.
Durability of Geopolymer Concrete Using Recycled Coarse Aggregate Incorporating Fly Ash-GGBFS
Lecture Notes in Civil Engineering
Goel, Manmohan Dass (editor) / Biswas, Rahul (editor) / Dhanvijay, Sonal (editor) / Panda, Vabes Varadwaj (author) / Sahoo, Shreenandan (author) / Majhi, Biswajit (author) / Mondal, Subhajit (author)
Structural Engineering Convention ; 2023 ; Nagpur, India
2024-11-13
9 pages
Article/Chapter (Book)
Electronic Resource
English
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