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- W2749233389 abstract "Geopolymer is widely known as an environmentally-friendly construction material due to the remarkably low emission of CO 2 in its manufacturing process. This inorganic polymer can be produced via two precursors: solid component and alkaline activator. In the present work, the studied program was divided into two steps. In Step 1, the molarity of NaOH was investigated. The calcined-kaolin from Lampang city (Thailand source) was used as base alumino-silicate material. In addition, the concentrations of NaOH (5M, 10M, 15M and 20M) were utilized as alkaline activator for geopolymerization. After mixing, the geopolymer slurry was casted into a size of a 50 mm ´ 50 mm ´ 50 mm steel mold. The curing condition of all specimens was maintained at 60°C for 7 days. The compressive strength of all specimens was tested. The utilization of 10M of NaOH yielded the highest compressive strength with the value of 22.01 MPa. In Step 2, 10M of NaOH was fixed and used as alkaline activator. In this case, the amount of waste glass (0%, 10%, 20%, 30%, 40% and 50% by weight) was studied on partial calcined-kaolin replacement. However, the compressive strength of all samples slightly changed with an increasing weight percentage of waste glass (0% - 20 %). The highest compressive strength of 20 wt% waste glass was 25.22 MPa. Although, all samples showed a Si-O-Al bond in the FTIR result, indicating the geopolymer degree strenghened. However, the compressive strength of samples tended to decrease with an increase in the amount of waste glass (30 to 50 wt%) as a result of micro-cracks observed and distributed in the samples." @default.
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- W2749233389 date "2017-08-01" @default.
- W2749233389 modified "2023-09-26" @default.
- W2749233389 title "Use of Waste Glass as a Reinforce Material in Calcined-Kaolin Based Geopolymer" @default.
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- W2749233389 doi "https://doi.org/10.4028/www.scientific.net/kem.751.556" @default.
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