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Physical and Mechanical Properties of Lightweight Fly Ash/GGBS Based Geopolymer Mortar Foamed with Hydrogen Peroxide
Vietnam is one of the countries in Southeast Asia that possesses many fly ash and ground granulated blast furnace slag. They are known as by-products from the thermal power plant and steel industries with rich aluminosilicate content to activate with alkaline liquid in geopolymer. In this research, hydrogen peroxide (H2O2) is used as a foaming agent in lightweight geopolymer mortar. The experimental work with mixed proportions of fly ash, ground granulated blast furnace slag, alkaline solution, fine aggregate, and foam agent is conducted to investigate lightweight geopolymer mortar properties. As a result, the flow diameter and flow time depends on the sodium solution to geopolymer solid ratio and fly ash to ground granulated blast furnace slag ratio. Besides, the higher percentage of foam agent and higher content of GGBS result in a more significant expansion degree of lightweight geopolymer mortar. On the other hand, the compressive strength of specimens decreases with the increase of foam agent and content of GGBS. In conclusion, the lightweight geopolymer mortar foamed with hydrogen peroxide shows a high potential to produce lightweight panels in construction.
Physical and Mechanical Properties of Lightweight Fly Ash/GGBS Based Geopolymer Mortar Foamed with Hydrogen Peroxide
Vietnam is one of the countries in Southeast Asia that possesses many fly ash and ground granulated blast furnace slag. They are known as by-products from the thermal power plant and steel industries with rich aluminosilicate content to activate with alkaline liquid in geopolymer. In this research, hydrogen peroxide (H2O2) is used as a foaming agent in lightweight geopolymer mortar. The experimental work with mixed proportions of fly ash, ground granulated blast furnace slag, alkaline solution, fine aggregate, and foam agent is conducted to investigate lightweight geopolymer mortar properties. As a result, the flow diameter and flow time depends on the sodium solution to geopolymer solid ratio and fly ash to ground granulated blast furnace slag ratio. Besides, the higher percentage of foam agent and higher content of GGBS result in a more significant expansion degree of lightweight geopolymer mortar. On the other hand, the compressive strength of specimens decreases with the increase of foam agent and content of GGBS. In conclusion, the lightweight geopolymer mortar foamed with hydrogen peroxide shows a high potential to produce lightweight panels in construction.
Physical and Mechanical Properties of Lightweight Fly Ash/GGBS Based Geopolymer Mortar Foamed with Hydrogen Peroxide
Lecture Notes in Civil Engineering
Reddy, J. N. (editor) / Wang, Chien Ming (editor) / Luong, Van Hai (editor) / Le, Anh Tuan (editor) / Le, Tuan Anh (author) / Nguyen, Tan Khoa (author) / Nguyen, Thuy Ninh (author)
2022-09-21
9 pages
Article/Chapter (Book)
Electronic Resource
English
Lightweight , Geopolymer mortar , Fly ash , Ground granulated blast furnace slag , Hydrogen peroxide , Flowability , Strength Energy , Sustainable Architecture/Green Buildings , Structural Materials , Geotechnical Engineering & Applied Earth Sciences , Building Construction and Design , Construction Management , Environmental Policy , Engineering
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