Biomass Bottom Ash as Supplementary Cementitious Material: The Effect of Mechanochemical Pre-Treatment and Mineral Carbonation

Skevi, Lorena; Baki, Vahiddin Alperen; Feng, Yanjin; Valderrabano, Maria; Ke, Xinyuan

doi:10.3390/ma15238357

Cited by 10 publications

(2 citation statements)

References 68 publications

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“…They were mainly fairchildite, calcite, arcanite, potassium calcium phosphate, and potassium carbonate. Absorption bands, registered using FTIR spectroscopy (Figure 6; spectrum labeled as "Ash"), were characteristic for the biomass-derived ash structure [43][44][45][46][47]. A wide, low intensity band at 3600-3000 cm −1 was associated with OH groups present within the ash structure.…”

Section: Chemical Structurementioning

confidence: 99%

Rigid Polyurethane Foams Modified with Soybean-Husk-Derived Ash as Potential Insulating Materials

Magiera,

Kuźnia,

Błoniarz

et al. 2023

Processes

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One of the most popular polymeric materials in the building and construction industry is rigid polyurethane foam (RPUF). In order to reduce the number of expensive chemical components, various fillers are used in the RPUF industry. The aim of this work was to investigate the influence of the biomass originated filler soybean-husk-derived ash on the structure and properties of composite RPUF. Firstly, polyurethane foams were obtained using hand mixing and casting techniques. Composite foams contained 5, 10, 15, and 20 wt. % of the filler. Secondly, the obtained composite materials were analyzed considering their cellular structure using optical microscopy and image processing software. All samples were composed of mostly pentagonal, regular-in-shape cells. Their diameters ranged between 100 and 70 µm. The chemical structure of the foams was investigated using infrared spectroscopy. No chemical interactions between matrix and filler were detected. Mechanical testing was performed in order to evaluate the mechanical performance of the materials. Both compressive strength and Young’s modulus were comparable and equaled approx. 130 kPa and 2.5 MPa, respectively. Wettability analysis indicated a hydrophobic nature of the materials. The obtained results suggested that the cellular and chemical structure of the polyurethane matrix was not affected by the filler incorporation.

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Section: Chemical Structurementioning

confidence: 99%

Rigid Polyurethane Foams Modified with Soybean-Husk-Derived Ash as Potential Insulating Materials

Magiera,

Kuźnia,

Błoniarz

et al. 2023

Processes

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“…Olive pomace is used as biomass because of its high energy content and low cost; around 30% of it is used to create power. In Spain, the combustion of olive pomace produces more than 50,000 tons of ash each year [22].…”

Section: Introductionmentioning

confidence: 99%

Development of Geopolymer Mortars Using Air-Cooled Blast Furnace Slag and Biomass Bottom Ashes as Fine Aggregates

et al. 2023

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The aim of this study is to compare the mechanical and physical properties of different geopolymer mortars made with granulated blast furnace slag as a geopolymer source material, NaOH (8 M) as the activating solution, and three different types of fine aggregates (air-cooled blast furnace slag, biomass bottom ashes, and silica sand). The samples were made with an aggregate/geopolymer ratio of 3/1, and physical (density and mercury intrusion porosimetry), mechanical (compressive and flexural strength), and acid attack resistance were determined. When air-cooled blast furnace slag is used, the mechanical and acid attack properties are improved compared with silica sand and biomass bottom ashes because of the existence of amorphous phases in this slag, which increase the geopolymer reaction rate despite the particle size being higher than other aggregates. It can be highlighted that the use of ACBFS as a fine aggregate in geopolymer mortars produces better properties than in cement Portland mortar.

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Agricultural Biomass Ash as a Circular Building Material: Connecting Agriculture and Construction Industry

Draganić,

Šupić,

Laban

et al. 2023

Springer Tracts in Civil Engineering

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Previous studies have indicated that agricultural biomass ash is an important resource with great potential for the construction sector. To valorize agricultural waste (as a renewable energy source and as a supplementary cementitious material—SCM), the crucial steps in the integrated management system of the circular economy cycle are the establishment and maintenance of database on crop production, namely, on harvest residues amount and quantity and quality of available biomass ash. The purpose of the study was to establish a multi-level georeferenced interactive database (map) on the produced quantities of agricultural biomass ash and cement consumption in Vojvodina region (Republic of Serbia), based on the analysis of agricultural biomass ash stream through three sectors as potential actors of the supply chain: agriculture (biomass producers)—industry (biomass users)—construction industry (users of biomass ash). Conducted research indicates the annual potential of over 2.4 million tons of harvest residues from corn, wheat, soya and sunflower, available for energy purposes in Vojvodina region. The potentially available amount of ash that might be generated annually by harvest residues combustion is estimated at over 196 thousand tons. Identified available amount of biomass ash (4.2 thousand tons) indicates an extremely low utilization (~2%) of the biomass potential. On an annual basis, all current agricultural biomass ash production can be used for partial cement substitution up to 30% in six construction companies. However, the generated ash is mostly disposed of in municipal landfills, which represents the end of the waste stream.

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Biomass Bottom Ash as Supplementary Cementitious Material: The Effect of Mechanochemical Pre-Treatment and Mineral Carbonation

Cited by 10 publications

References 68 publications

Rigid Polyurethane Foams Modified with Soybean-Husk-Derived Ash as Potential Insulating Materials

Rigid Polyurethane Foams Modified with Soybean-Husk-Derived Ash as Potential Insulating Materials

Development of Geopolymer Mortars Using Air-Cooled Blast Furnace Slag and Biomass Bottom Ashes as Fine Aggregates

Agricultural Biomass Ash as a Circular Building Material: Connecting Agriculture and Construction Industry

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