Development of a New Rapid, Relevant and Reliable (R<sup>3</sup>) Testing Method to Evaluate the Pozzolanic Reactivity of Calcined Clays: Fid-Bau Portal

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Development of a New Rapid, Relevant and Reliable (R³) Testing Method to Evaluate the Pozzolanic Reactivity of Calcined Clays

Avet, F. / Snellings, R. / Alujas, A. / Scrivener, K.

This paper introduces a new rapid, relevant and reliable (R³) test to characterize the pozzolanic reactivity of calcined clays. This test uses isothermal calorimetry to evaluate the reactivity by monitoring the heat release in portlandite/calcined clay/limestone model systems. Once the mix design was adjusted, a wide range of calcined clays was investigated. Tests were first run at 20 °C. Good correlations were found between the heat release at 6 days and the compressive strength results on mortar blends containing calcined clays and limestone. Another series of tests were carried out at 40 °C, enabling the isothermal calorimetry test duration to be reduced from 6 to 1 day, while keeping good correlations with strength results.

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Development of a New Rapid, Relevant and Reliable (R³) Testing Method to Evaluate the Pozzolanic Reactivity of Calcined Clays

Avet, F. / Snellings, R. / Alujas, A. / Scrivener, K.

This paper introduces a new rapid, relevant and reliable (R³) test to characterize the pozzolanic reactivity of calcined clays. This test uses isothermal calorimetry to evaluate the reactivity by monitoring the heat release in portlandite/calcined clay/limestone model systems. Once the mix design was adjusted, a wide range of calcined clays was investigated. Tests were first run at 20 °C. Good correlations were found between the heat release at 6 days and the compressive strength results on mortar blends containing calcined clays and limestone. Another series of tests were carried out at 40 °C, enabling the isothermal calorimetry test duration to be reduced from 6 to 1 day, while keeping good correlations with strength results.

Development of a New Rapid, Relevant and Reliable (R³) Testing Method to Evaluate the Pozzolanic Reactivity of Calcined Clays

Avet, F. / Snellings, R. / Alujas, A. / Scrivener, K.

This paper introduces a new rapid, relevant and reliable (R³) test to characterize the pozzolanic reactivity of calcined clays. This test uses isothermal calorimetry to evaluate the reactivity by monitoring the heat release in portlandite/calcined clay/limestone model systems. Once the mix design was adjusted, a wide range of calcined clays was investigated. Tests were first run at 20 °C. Good correlations were found between the heat release at 6 days and the compressive strength results on mortar blends containing calcined clays and limestone. Another series of tests were carried out at 40 °C, enabling the isothermal calorimetry test duration to be reduced from 6 to 1 day, while keeping good correlations with strength results.

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Title:

Development of a New Rapid, Relevant and Reliable (R³) Testing Method to Evaluate the Pozzolanic Reactivity of Calcined Clays

Additional title:

RILEM Bookseries

Contributors:

Scrivener, Karen (editor) / Favier, Aurélie (editor) / Avet, F. (author) / Snellings, R. (author) / Alujas, A. (author) / Scrivener, K. (author)

Published in:

Calcined Clays for Sustainable Concrete ; Chapter: 67 ; 539-544

RILEM Bookseries ; 10

Publication date:

2015-05-08

Size:

6 pages

ISBN:

978-94-017-9939-3 , 978-94-017-9938-6

ISSN:

2211-0852 , 2211-0844

DOI:

https://doi.org/10.1007/978-94-017-9939-3_67

Type of media:

Article/Chapter (Book)

Type of material:

Electronic Resource

Language:

English

Keywords:

Compressive Strength , Heat Release , Pozzolanic Reactivity , Strength Result , Pozzolanic Activity Engineering , Building Materials , Structural Materials , Theoretical and Applied Mechanics

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