RT info:eu-repo/semantics/article
T1 Multi-parametric flowability classification of self-compacting concrete containing sustainable raw materials: An approach to real applications
A1 Revilla Cuesta, Víctor
A1 Skaf Revenga, Marta
A1 Ortega López, Vanesa
A1 Manso Villalaín, Juan Manuel
K1 Self-compacting concrete
K1 Sustainable raw material
K1 Multi-parametric flowability classification
K1 Flowability balance
K1 Flowability predominance
K1 Ingeniería civil
K1 Civil engineering
K1 Materiales de construcción
K1 Building materials
AB Adding sustainable raw materials to Self-Compacting Concrete (SCC) modifies its flowabilitybehavior. Furthermore, the use of these raw materials may at the same time even improve onefresh property while worsening another. An accurate flowability description of SCC containingsustainable raw materials therefore requires a multi-parametric classification that simultaneouslycovers all fresh properties (slump flow, viscosity, and blocking ratio) for an accurate descriptionof its potential applications. Existing classifications consider each fresh property independently.In this paper, a multi-parametric flowability classification of SCC containing sustainable rawmaterials is proposed. The effects of multiple sustainable raw materials on SCC flowability arecompiled in a dataset serving as a knowledge base with information on 663 SCC mixes containingsustainable aggregates and binders. The statistical analysis of the dataset led to the definition ofthree types of flowability zones. Firstly, the overall-flowability zones, in which SCC flowability isdescribed in absolute terms: the better the in-fresh properties, the better the overall-flowabilityzone. Secondly, the flowability-balance zones reflect the balance between free flow (slumpflow and slump-flow viscosity) and flow around obstacles (V-funnel emptying time and L-boxblocking ratio). Finally, SCC is classified within flowability-predominance zones, which define themain characteristic of SCC flowability, rate of flow (viscosity) or uniformity of flow (spreading).The variability of the effect of each sustainable raw material on the flowability of SCC makes thisclassification useful, in so far as it offers a complete picture of the fresh behavior of SCC in whichall fresh properties are simultaneously considered. Furthermore, based on the description in theproposed classification of overall flowability and the balance between free flow and flow aroundobstacles, the application fields are defined for which the use of each SCC mix with sustainableraw materials is recommended.
PB Elsevier
SN 2352-7102
YR 2023
FD 2023-01
LK http://hdl.handle.net/10259/7485
UL http://hdl.handle.net/10259/7485
LA eng
NO This research work was supported by the Spanish Ministry of Universities, MICINN, AEI, EU, ERDF and NextGenerationEU/PRTR [grant numbers PID2020-113837RB-I00; 10.13039/501100011033; TED2021-129715B–I00; FPU17/03374]; the Junta de Castilla y León (Regional Government) and ERDF [grant number UIC-231]; and, finally, the University of Burgos [grant number SUCONS, Y135. GI].
DS Repositorio Institucional de la Universidad de Burgos
RD 07-may-2024