An Experimental Study on the Mechanical Properties of Low-Aluminum and Rich-Iron-Calcium Fly Ash-Based Geopolymer Concrete

Widjajakusuma, Jack; Bali, Ika; Ng, Gino Pranata; Wibowo, Kevin Aprilio

doi:10.46604/aiti.2022.10525

Cited by 2 publications

(2 citation statements)

References 18 publications

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“…Subsequently, the physical and mechanical properties of foamed materials were determined. The expectation density and mechanical properties were found to be lower compared to those of solid geopolymers [27][28]. The obtained results support the correlation between these values.…”

Section: Introductionsupporting

confidence: 79%

Green Building Materials for Circular Economy - Geopolymer Foams

Kinga Korniejenko,

Kinga Pławecka,

Patrycja Bazan

et al. 2023

Proc. eng. technol. innov.

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This study aims to design and investigate foamed geopolymers as a green material dedicated to the circular economy. For synthesis as raw material, the main waste materials of two Polish coal mines, Wieczorek and Staszic, are applied. Additionally, various foaming methods are employed to utilize the by-product of energy production, especially the fly ash generated by the Skawina power plant. In this study, the main issues addressed are related to the selection of the most appropriate foaming agent and the optimization of the process parameters, including temperature, time, and mixture components. Hydrogen peroxide, aluminum powder, and a commercial foaming agent are selected as foaming agents in this research. During the process of sample preparation, stabilizers are applied in the form of polyglycol and cellulose. Through the conducted test, the results show that hydrogen peroxide and aluminum powder emerged as the two most optimal foaming agents.

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Section: Introductionsupporting

confidence: 79%

Green Building Materials for Circular Economy - Geopolymer Foams

Kinga Korniejenko,

Kinga Pławecka,

Patrycja Bazan

et al. 2023

Proc. eng. technol. innov.

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“…Creations to obtain concrete with environmentally friendly forming materials are carried out by using waste materials such as replacing cement as a binder, either in whole or in part from cement, and replacing other concrete materials such as fine aggregate. One way to completely replace cement as a binder is to use waste material in the form of fly ash to produce environmentally friendly Geopolymer concrete [1] which can reduce CO2 emissions by 80%. Replacing some of the functions of cement is also often done with refined waste cementitious materials, one of which is glass powder [2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Concrete with Recycled Bottle Glass Powder Substitute

Tatanka,

Bali,

Sudjatmiko

2024

PCEJ

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Concrete is a material that is widely used in the construction of structural buildings. One of the influential factors for obtaining high quality concrete is the aggregate gradation. If the aggregate gradation has a small size and varies, it can reduce the porosity of the concrete so that the concrete becomes denser which makes the quality of the concrete high. In order to use aggregates with fine gradations, this study proposes glass powder derived from glass bottle waste as a partial replacement for fine aggregates. The glass powder used is in the sizes about 0.150 mm - 0.075 mm. Then, the maximum size of 15 mm for the coarse aggregate and the fine aggregate with the gradation of zone 4 (fine sand) were used for the concrete mix. The purpose of this study is to investigate the mechanical properties of concrete i.e. the compressive and split tensile strength of concrete with glass powder as a partial substitution of fine aggregates with a percentage of 10%, 15%, and 20% at a concrete age of 28 days. This study uses the testing method that refers to ASTM standard. From the test results, it was found that the compressive strength of concrete with 20% glass powder variation (GPC 20%) increased by 11.32% with a value of 38.97MPa compared to the compressive strength of normal concrete (NC) with a value of 35.01 MPa. For the split tensile strength, the concrete with a 20% glass powder variation increased by 15% with a value of 2.71 MPa compared to the split tensile strength of normal concrete with a value of 2.36 MPa. The results showed that the use of glass powder as a partial replacement for fine aggregate in this study was reasonably good to improve its mechanical properties.

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An Experimental Study on the Mechanical Properties of Low-Aluminum and Rich-Iron-Calcium Fly Ash-Based Geopolymer Concrete

Cited by 2 publications

References 18 publications

Green Building Materials for Circular Economy - Geopolymer Foams

Green Building Materials for Circular Economy - Geopolymer Foams

Mechanical Properties of Concrete with Recycled Bottle Glass Powder Substitute

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