Short-term thermal activation of clay-bearing aggregates for alkali-silica reactivity miti

Experimental data investigates the alkali-silica reactivity (ASR) of aggregates from İstanbul’s Thrace Formation. The dataset includes results from mineralogical, thermal, and ASTM C1260 expansion analyses to demonstrate how a short 800°C/7-minute treatment mitigates ASR by partially dehydroxylating clay minerals. Findings show reduced expansion and altered ASR gel chemistry, supporting aggregate-level modification as a practical mitigation pathway.

Use Cases

• Evaluating the efficacy of short-term thermal treatment for ASR mitigation based on ASTM C1260 expansion results.
• Analyzing mineralogical changes in muscovite and clinochlore after thermal activation using provided analytical data.
• Correlating alkali-to-silica ratios in ASR gels with swelling capacity using SEM-EDS analysis results.
• Assessing the preservation of mechanical performance in concrete containing treated aggregates.

Strengths

• Dataset is openly licensed under CC-BY-4.0, facilitating reuse and redistribution.
• Cross-platform presence on figshare indicates established sharing and potential importance.
• Analysis is grounded in standardized ASTM C1260 testing and SEM-EDS techniques.

Limitations

• Column names and a precise row count are not provided, limiting understanding of the data structure.
• The dataset size (12865) is given without units, making its meaning (e.g., bytes, rows) ambiguous.
• Organization information for the author is missing, affecting provenance clarity.

Provenance

Source

Erdi Avci

Collection Method

Likely contains experimental results from laboratory mineralogical, thermal, and mechanical analyses.

Time Range

null

Freshness

Last updated on 2026-03-21.

Geography

Aggregates sourced from İstanbul’s Thrace Formation.