Services on Demand
Journal
Article
Indicators
- Cited by SciELO
- Access statistics
Related links
- Cited by Google
- Similars in SciELO
- Similars in Google
Share
Ingeniería
Print version ISSN 0121-750X
Abstract
SOLACHE DE LA TORRE, Sara Cristina; DELGADO-HERNANDEZ, David Joaquin and ARTEAGA-ARCOS, Juan Carlos. Comparative Analysis of the Use of Nanosilica and Fly Ash in Hydraulic Concrete. ing. [online]. 2023, vol.28, n.3, e19517. Epub Dec 26, 2023. ISSN 0121-750X. https://doi.org/10.14483/23448393.19517.
Context:
Nowadays, nanomaterials constitute an innovative alternative for the construction sector. This study evaluates the benefits of adding nanosilica and fly ash to Portland cement concrete in terms of its mechanical strength properties.
Method:
45 specimens were used to compare the compressive strength and durability of concrete mixtures with nanosilica and fly ash. The specimens were studied after 7, 14, and 21 days to determine their maximum resistance.
Results:
The addition of small amounts of nanosilica (up to 1 %) significantly improved the compressive strength of the concrete. In contrast, a large amount of fly ash (up to 8 %) was required for a noticeable effect.
Conclusions:
Concrete with nanosilica yielded the best results in terms of mechanical strength. The key to improving concrete through nanosilica and fly ash is to reduce the water-to-cement ratio using chemical agents that reduce porosity and increase resistance.
Keywords : concrete; nanosilica; fly ash; strength.