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Towards the valorization of Cumbre Vieja volcanic ash – Production of alternative cements

Tashima, M.M. / Soriano, L. / Borrachero, M.V. / Monzó, J. / Payá, J.

Highlights • Volcanic ash (VA) from the Cumbre Vieja volcano (La Palma, Spain) was characterized. • VA was activated with NaOH/waterglass activator (1.46 SiO2/Na2O modulus) • Compressive strength of 80 MPa was reached for mortars cured at 65 °C for 7 days. • The feasibility of using recently erupted volcanic material was demonstrated. • This is a fascinating solution for the VA valorization in the reconstruction tasks.

Abstract One of the most critical issues after a volcanic eruption is managing damaged infrastructure and human health. This study aims to promote the valorization of non-weathered volcanic ash (VA) from the Cumbre Vieja volcano (La Palma Island – Spain) in the production of alternative cements. A detailed study related to the characterization of VA was performed, and its use in the production of alkali-activated cements is proposed. Promising results, achieving about 80 MPa in compression, indicated that using a cementing material based on VA could be a fascinating solution for the VA valorization and the reconstruction of the affected infrastructure of La Palma Island, especially in producing prefabricated elements.

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Towards the valorization of Cumbre Vieja volcanic ash – Production of alternative cements

Tashima, M.M. / Soriano, L. / Borrachero, M.V. / Monzó, J. / Payá, J.

Highlights • Volcanic ash (VA) from the Cumbre Vieja volcano (La Palma, Spain) was characterized. • VA was activated with NaOH/waterglass activator (1.46 SiO2/Na2O modulus) • Compressive strength of 80 MPa was reached for mortars cured at 65 °C for 7 days. • The feasibility of using recently erupted volcanic material was demonstrated. • This is a fascinating solution for the VA valorization in the reconstruction tasks.

Abstract One of the most critical issues after a volcanic eruption is managing damaged infrastructure and human health. This study aims to promote the valorization of non-weathered volcanic ash (VA) from the Cumbre Vieja volcano (La Palma Island – Spain) in the production of alternative cements. A detailed study related to the characterization of VA was performed, and its use in the production of alkali-activated cements is proposed. Promising results, achieving about 80 MPa in compression, indicated that using a cementing material based on VA could be a fascinating solution for the VA valorization and the reconstruction of the affected infrastructure of La Palma Island, especially in producing prefabricated elements.

Towards the valorization of Cumbre Vieja volcanic ash – Production of alternative cements

Tashima, M.M. / Soriano, L. / Borrachero, M.V. / Monzó, J. / Payá, J.

Highlights • Volcanic ash (VA) from the Cumbre Vieja volcano (La Palma, Spain) was characterized. • VA was activated with NaOH/waterglass activator (1.46 SiO2/Na2O modulus) • Compressive strength of 80 MPa was reached for mortars cured at 65 °C for 7 days. • The feasibility of using recently erupted volcanic material was demonstrated. • This is a fascinating solution for the VA valorization in the reconstruction tasks.

Abstract One of the most critical issues after a volcanic eruption is managing damaged infrastructure and human health. This study aims to promote the valorization of non-weathered volcanic ash (VA) from the Cumbre Vieja volcano (La Palma Island – Spain) in the production of alternative cements. A detailed study related to the characterization of VA was performed, and its use in the production of alkali-activated cements is proposed. Promising results, achieving about 80 MPa in compression, indicated that using a cementing material based on VA could be a fascinating solution for the VA valorization and the reconstruction of the affected infrastructure of La Palma Island, especially in producing prefabricated elements.

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Title:

Towards the valorization of Cumbre Vieja volcanic ash – Production of alternative cements

Contributors:

Tashima, M.M. (author) / Soriano, L. (author) / Borrachero, M.V. (author) / Monzó, J. (author) / Payá, J. (author)

Published in:

Construction and Building Materials ; 370

Publication date:

2023-02-02

ISSN:

DOI:

https://doi.org/10.1016/j.conbuildmat.2023.130635

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

Volcanic ash , Alkaline activation , Valorization , Microstructure

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