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Development of a new rapid, relevant and reliable (R3) test method to evaluate the pozzolanic reactivity of calcined kaolinitic clays
Open accessAbstract
Abstract The present paper introduces a new rapid, relevant and reliable (R 3 ) test to predict the pozzolanic activity of calcined clays with kaolinite contents ranging from 0 to 95%. The test is based on the correlation between the chemical reactivity of calcined clays in a simplified system and the compressive strength of blends in standard mortar. The simplified system consists of calcined clay portlandite and limestone pastes with sulfate and alkali levels adjusted to reproduce the reaction environment of hydrating blended cements. The pastes were hydrated for 6 days at 20 °C or for 1 day at 40 °C. The chemical reactivity of the calcined clay can be obtained first by measurement of the heat release during reaction using isothermal calorimetry and second by bound water determination in a heating step between 110 °C and 400 °C. Very good correlations were found between the mortar compressive strength and both measures of chemical reactivity.
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Cited by
Assessing, Understanding and Unlocking Supplementary Cementitious Materials
Snellings, R. (2016) · RILEM Technical Letters · doi:10.21809/rilemtechlett.2016.12 · Cited by 348
Self-citationAmitani, A., & Miller, S. A. (2026) · Resources, Conservation and Recycling · doi:10.1016/j.resconrec.2025.108769 · Cited by 6
Metadata
- Authors
- Avet, F., Snellings, R., Alujas Diaz, A., Ben Haha, M., & Scrivener, K.
- Venue
- Cement and Concrete Research
- Publisher
- Elsevier BV
- Published
- 2016-07
- Volume
- 85
- Pages
- 1-11
- ISSN
- 0008-8846 (ISSN-L)
- OpenAlex
- W2324424583
- Cited by
- 767
- References
- 0
- FWCI
- 33.53
- Type
- journal article
- Language
- en
- Open access
- green
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- Avet, F., Snellings, R., Alujas Diaz, A., Ben Haha, M., & Scrivener, K. (2016). Development of a new rapid, relevant and reliable (R3) test method to evaluate the pozzolanic reactivity of calcined kaolinitic clays. Cement and Concrete Research. https://doi.org/10.1016/j.cemconres.2016.02.015
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