This (ReadMe) file was created on 2025-11-20 by TESOVNIK ANŽE ------------------- GENERAL INFORMATION ------------------- Author/leading researcher details Name and surname: Anže Tesovnik ORCID: https://orcid.org/0009-0000-4803-6246 Institution: Slovenian National Building and Civil Engineering Institute Address: Dimičeva ulica 12, 1000 Ljubljana, Slovenia Email: anze.tesovnik@zag.si Role in this dataset: A collection of raw and processed data and measurements, compiled to enable access to all relevant information used in the analysis and interpretation of results. The dataset contains measurements of thermally treated and non-thermally treated alkali-activated aggregates produced from co-incineration biomass ash. It includes data on ash characterization, mechanical performance, thermal behavior, microstructural properties, and the chemical and mineralogical composition of the produced aggregates. This dataset supports the findings presented in the article entitled "Effect of alkali-activation pre-treatment of sintered aggregates from biomass fly ash on microstructural and mineralogical evolution". Information about other author(s) Name and surname: Vilma Ducman ORCID: https://orcid.org/0000-0002-6430-3305 Institution: Slovenian National Building and Civil Engineering Institute Address: Dimičeva ulica 12, 1000 Ljubljana, Slovenia Email: vilma.ducman@zag.si Date of data collection: Geographical location of data collection: Information on the funders/programmes/projects that made the data collection possible: ----------------------------- SHARING/ACCESSING INFORMATION ----------------------------- Data licences/restrictions: ---------------------- VIEWING DATA AND FILES ---------------------- File list: - - Description: -------------------------- 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: ResearchData_Sintered_AAM_Aggregtes.xlsx ------------------------------------- BA - co-incineration biomass ash List of variables: This sheet contains the data from laser granulometry measurements (PSD - Particle Size Distribution) of the BA used in the study, expressed in two ways, with abbreviations explained below. q3 - differential distribution: the volume percentage of particles within a specific size range Q3 - cumulative distribution: the cumulative volume percentage of particles smaller than a given size This sheet contains the mineralogical composition of the alkali-activated samples measured by X-ray diffraction (XRD). Samples BA1 and BA2 represent mixtures activated with 7.57 wt% Na₂O and 5.44 wt% Na₂O, respectively. Samples without numerical labels correspond to thermally untreated aggregates, while numerical labels (e.g., 200, 400, 600) indicate the temperatures at which the produced aggregates were thermally treated. This sheet presents the compressive strength measurements (CS) for thermally treated alkali-activated aggregates. This sheet presents dilatometric analysis data for samples BA1 and BA2, including both palletization efficiency-normalized mixtures (BA1 n., BA2 n.) and thermally treated aggregates. For each sample, the table reports temperature (°C), relative length change (dL/Lo), and the rate of dimensional change (dL/dt). This sheet presents the pore size distribution of thermally treated aggregates, measured by mercury intrusion porosimetry (MIP). The data sets of pore size (pore diameter) and log differential intrusion for the samples of each mixture and thermal treatment temperature are used to plot the pore distribution diagrams. This sheet contains the raw data measurements obtained by Fourier Transform Infrared Spectroscopy (FTIR).