Dataset for the article Sequestration capacity of bio-based ashes and influence of carbonation on the leaching behavior depending on their mineralogical composition This (ReadMe) file was created on 2025-10-20 by SARA TOMINC. ------------------- GENERAL INFORMATION ------------------- Dataset description: The dataset supports the data presented in the tables and figures of the scientific article "Sequestration capacity of bio-based ashes and influence of carbonation on the leaching behavior depending on their mineralogical composition". It includes calcimetric measurements, XRF, TGA, and XRD analysis data, as well as calculations of CO2 uptake and CO2 sequestration capacity for the analyzed samples. Additionally, it contains original FTIR measurement data, which are not included in the article and serve as supplementary material. Author/leading researcher details Name and surname: Sara Tominc ORCID: https://orcid.org/0000-0003-3956-9109 SICRIS ID: https://cris.cobiss.net/ecris/si/sl/researcher/43280 Institution: Slovenian National Building and Civil Engineering Institute Address: Dimičeva ulica 12, 1000 Ljubljana, Slovenia Email: sara.tominc@zag.si Role in this dataset: A collection of raw and processed data and measurements, compiled to provide access to all relevant information used in the analysis and interpretation of results. Information about the author(s) Name and surname:Majda Pavlin ORCID: https://orcid.org/0000-0002-1701-8130 SICRIS ID: https://cris.cobiss.net/ecris/si/sl/researcher/40500 Institution: Slovenian National Building and Civil Engineering Institute Address: Dimičeva ulica 12, 1000 Ljubljana, Slovenia Email: majda.pavlin@zag.si Role in this dataset:A collection of raw and processed data and measurements. Information about the author(s) Name and surname:Lea Žibret ORCID: https://orcid.org/0000-0002-0132-0896 SICRIS ID: https://cris.cobiss.net/ecris/si/sl/researcher/34762 Institution: Slovenian National Building and Civil Engineering Institute Address: Dimičeva ulica 12, 1000 Ljubljana, Slovenia Email: lea.zibret@zag.si Role in this dataset:A collection of raw and processed data and measurements. Information about the author(s) Name and surname: Vilma Ducman ORCID: https://orcid.org/0000-0002-6430-3305 SICRIS ID: https://cris.cobiss.net/ecris/si/sl/researcher/7316 Institution: Slovenian National Building and Civil Engineering Institute Address: Dimičeva ulica 12, 1000 Ljubljana, Slovenia Email: vilma.ducman@zag.si Information about the author(s) Name and surname: Lisbeth M. Ottosen ORCID: https://orcid.org/0000-0001-7756-382X Institution: Technical University of Denmark Address: Brovej, 2800 Lyngby, Denmark Email:limo@dtu.dk Date of data collection: from 2025-08-01 to 2025-10-20. Geographical location of data collection: Ljubljana, Slovenia Information on the funders/programmes/projects that made the data collection possible: This research was EU-funded by Horizon Europe ASHCYCLE project, grants number 101058162 and partially supported by the Slovenian Research and Innovation Agency (ARIS) under research core grant no. P2-0273. ----------------------------- SHARING/ACCESSING INFORMATION ----------------------------- Data licences/restrictions: CC-BY Links to publications that cite or use the data: paper's PID/DOI/handle, when published. ---------------------- VIEWING DATA AND FILES ---------------------- File list: - XLSX-Raziskovalni podatki - Description:Raw numerical data derived from XRF, XRD, calcimetric, TG, FTIR, pH, conductivity, IC, ICP-OES, ICP-MS measurements and processed calculations used in the article Sequestration capacity of bio-based ashes and influence of carbonation on the leaching behavior depending on their mineralogical composition. -------------------------- METHODOLOGICAL INFORMATION -------------------------- Description of the methods used to collect/obtain the data: The experimental design and protocols used to collect the data are described in the article. ------------------------------------- DATA-SPECIFIC INFORMATION: [XLSX-Raziskovalni podatki] ------------------------------------- This sheet contains the calcimetric measurements for each sample before and during carbonation treatment (after 3, 7, and 14 days). It includes the masses of standard CaCO3 and the measured pressure (in psi) used to generate the calibration curve. The CaCO3 content in each sample was calculated based on the pressure difference after 30 seconds of reaction, and for dolomite, after 40 minutes of reaction. This sheet contains the original X-ray fluorescence measurements for all samples before carbonation treatment, obtained using UniQuant software. The data are linked to Table 2 in the article. This sheet also includes the theoretical CO2 sequestration capacities of the samples, calculated from the chemical composition of the ashes (XRF results) using the modified Steinour equation. The data are linked to Table 5 and Figure 2b in the article. This sheet includes XRD analyses with Rietveld refinement, linked to Table 3 in the article. This sheet contains raw data (temperature, mass loss and derivative mass) for all samples after 14 days of CO2 exposure, obtained using TA Universal Analysis 2000 v.4.5A software. This sheet presents the overall CO2 content measured by pressure calcimeter and calculated using stoichiometric ratios (the sum of CaCO3 and dolomite content). CO2 uptake (in wt%) was determined by calcimetric measurements and calculated using Equation 1 in the article. The data are linked to Table 4, Table 5, and Figure 2. The sheet also provides the calculated CO2 content (wt%) determined using Equation 6 (measured by TG analyzer) and the CO2 sequestration capacity (gCO2/kgash) determined using Equation 2 in the article. These data correspond to Table 5 and Figures 2b and 3. The theoretical CO2 sequestration capacity was calculated using the modified Steinour equation and carbonation efficieny was calculated as the ratio between CO2 sequestration capacity determined by the pressure calcimeter and the theoretical value, linked to Table 5 in the article. Additionally, this sheet contains original Fourier transform infrared spectroscopy (FTIR) measurement data, which are not included in the article and serve as supplementary material. FTIR was performed in attenuated total reflectance (ATR) mode using a PerkinElmer Spectrum Two, covering a wavenumber range of 4000–380 cm-1 at a resolution of 4 cm-1 for both original and carbonated samples. The FTIR spectra show the characteristic C-O bonds typical of carbonate phases, with a strong band at around 1410 cm-1 corresponding to the ν3 vibrations of CO32- (asymmetric C-O stretching). Additional bands at around 874 cm-1 and 712 cm-1 are attributed to the ν2 in-plane and out-of-plane bending vibrations of CO32- from trace carbonate compounds. The increased intensity of these bands in the carbonated samples confirms the formation of CaCO3 during carbonation. This sheet includes pH and conductivity measurements of the analyzed samples before and after carbonation treatment, as well as leaching results measured by IC, ICP-OES and ICP-MS. The data are linked to Figures 4-6. This sheet includes pH and conductivity measurements of the analyzed samples before and after carbonation treatment, with corresponding graphs, as well as calculated concentrations of certain elements/ions measured by IC, ICP-OES and ICP-MS, also with plotted graphs. The data are linked to Figures 4-6 in the article.