Self-compacting concrete with fly ash
DOI:
https://doi.org/10.20868/ade.2025.5564Keywords:
hormigón autocompactante, SCC, propiedades en fresco, propiedades mecánicas, cenizas volantesAbstract
Self-compacting concrete (SCC) is a type of concrete with a high flow capacity, capable of flowing by the effect of gravitational force alone, without the need for vibration. The SCC in its fresh state has characteristics such as: high fluidity and deformability, formwork filling capacity by the sole effect of gravitational force (filling capacity), insertion capacity between reinforcements (passage capacity), stability (stability), i.e. the ability of the concrete to remain homogeneous, resistance to segregation.
Properties in the fresh state can be estimated by performing workability tests such as Slump Flow, L-Box, V-Funnel, U-Box, J-Ring.
After curing, self-compacting concrete will possess the following properties: high mechanical strength, durability. The introduction of ultra-fine material is the real innovation because it tends to create a mixture composed mainly of tiny particles, capable of transporting coarse aggregates. Fly ash, when used correctly, has been observed to improve the properties of concrete in both fresh and hardened states.
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