RT Journal Article
T1 Systematic study on mix design optimization and on fresh properties of grouts containing crystalline admixtures.
A1 Da Rocha Gomes, Suelen
A1 Santacruz-Cruz, María Isabel
A1 Sánchez, Luis
A1 Sánchez Moreno, Mercedes
K1 Lechada
K1 Materiales compuestos
K1 Cemento - Aditivos
AB Crystalline admixtures (CA) are oftenproposed as admixtures for improving self-healingability of cement-based materials. While significantprogress has been made in smart concretes and mortars,the application of self-healing technology ingrouts remains underexplored. The design of a groutis complex because any change in its composition willhave a significant effect on its properties, especially inthe fresh state. This work analyses the effect of theincorporation of the CA on the production of a selfrepairinggrout. The study focuses on the effects ofCA on the fresh and hardened properties of grouts. Acomprehensive analysis of grout design highlights theinfluence of critical parameters such as water/binder(w/b) and sand/binder (s/b) ratios, supplementarymaterials (fly ash and limestone), and superplasticizer(SP) dosages. Formulating a grout with CA requiresgreater efforts to achieve an optimal balance betweenthe fresh and hardened properties. CA affected particledispersion, stability and consistency of grouts.Designing grouts (with and without CA) with similarfluidity required higher SP dosages, which improvedthe viscosity and delayed the setting time. CA acceleratesthe hydration of C3Sand C3Ahydrates formationand shortens the induction period, but whencombined with SP, its contribution is reduced. Compressivestrength of grout with CA were higher thanreference at all tested ages.
PB Springer Nature
YR 2025
FD 2025-03-14
LK https://hdl.handle.net/10630/40680
UL https://hdl.handle.net/10630/40680
LA eng
NO 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
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 21 ene 2026