2026-06-03T04:45:43Zhttps://riuma.uma.es/rest/oai/requestoai:riuma.uma.es:10630/406802026-02-03T11:09:04Zcom_10630_2254col_10630_37953
RIUMA. Repositorio Institucional de la Universidad de Málaga
author
Da Rocha Gomes, Suelen
author
Santacruz-Cruz, María Isabel
author
Sánchez, Luis
author
Sánchez Moreno, Mercedes
2025-11-11T13:37:52Z
2025-11-11T13:37:52Z
2025-03-14
da Rocha Gomes, S., Santacruz, I., Sánchez, L. et al. Systematic study on mix design optimization and on fresh properties of grouts containing crystalline admixtures. Mater Struct 58, 91 (2025). https://doi.org/10.1617/s11527-025-02598-w
https://hdl.handle.net/10630/40680
10.1617/s11527-025-02598-w
Crystalline admixtures (CA) are often
proposed as admixtures for improving self-healing
ability of cement-based materials. While significant
progress has been made in smart concretes and mortars,
the application of self-healing technology in
grouts remains underexplored. The design of a grout
is complex because any change in its composition will
have a significant effect on its properties, especially in
the fresh state. This work analyses the effect of the
incorporation of the CA on the production of a selfrepairing
grout. The study focuses on the effects of
CA on the fresh and hardened properties of grouts. A
comprehensive analysis of grout design highlights the
influence of critical parameters such as water/binder
(w/b) and sand/binder (s/b) ratios, supplementary
materials (fly ash and limestone), and superplasticizer
(SP) dosages. Formulating a grout with CA requires
greater efforts to achieve an optimal balance between
the fresh and hardened properties. CA affected particle
dispersion, stability and consistency of grouts.
Designing grouts (with and without CA) with similar
fluidity required higher SP dosages, which improved
the viscosity and delayed the setting time. CA accelerates
the hydration of C3S
and C3A
hydrates formation
and shortens the induction period, but when
combined with SP, its contribution is reduced. Compressive
strength of grout with CA were higher than
reference at all tested ages.
eng
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Lechada
Materiales compuestos
Cemento - Aditivos
Systematic study on mix design optimization and on fresh properties of grouts containing crystalline admixtures.
journal article
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2025-MaterialsStructures-Systematic study on mix design optimization and on fresh properties of grouts containing crystalline admixtures.pdf