Properties of Waste-Based Geopolymer Building Blocks

Feng Hui Huang; Zong Hui Zhou; Xin Cheng

doi:10.4028/www.scientific.net/AMM.357-360.935

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 357-360Properties of Waste-Based Geopolymer Building...

Properties of Waste-Based Geopolymer Building Blocks

Abstract:

The geopolymer building blocks were prepared with fly ash, steel slag, pulverized blast furnace slag, sand and activator by the pressure molding process. Effects of activator on the microstructure and properties of the samples were analyzed by SEM-EDS and other methods. The results showed that the samples activated by sodium hydroxide with the best comprehensive performance: the compressive strength and flexural strength at 28days are 89.9MPa and7.9MPa, the water absorption and softening coefficient are 6.99% and 0.93, and its volume density is 2124Kg/m³. The compressive strength loss and weight loss are 9.20% and 2.44% after 25 freeze-thaw cycles, which meet the requirement JCT/422-2007 Non-fired rubbish gangue brick.

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Periodical:

Applied Mechanics and Materials (Volumes 357-360)

Pages:

935-938

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.357-360.935

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Online since:

August 2013

Authors:

Feng Hui Huang*, Zong Hui Zhou, Xin Cheng

Keywords:

Building Blocks, Durability, Geopolymer, Industrial Waste

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