2026-07-30T21:34:44Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/79912023-11-11T01:07:36Zcom_10259_6171com_10259_5086com_10259_2604col_10259_6172
Repositorio Institucional de la Universidad de Burgos
author
Ortega López, Vanesa
author
Revilla Cuesta, Víctor
author
Santamaría, Amaia
author
Orbe, Aimar
author
Skaf Revenga, Marta
2023-11-10T12:14:51Z
2023-11-10T12:14:51Z
2022-06
0899-1561
http://hdl.handle.net/10259/7991
10.1061/(ASCE)MT.1943-5533.0004372
1943-5533
Four high-workability (pumpable and self-compacting) concretemix designs are presented that incorporate steelmaking slagswith additions of both metallic and polymeric fibers. Electric arcfurnace slag (EAFS) as aggregate, and ladle furnace slag (LFS) andground granulated blast furnace slag (GGBFS) as supplementary cementitious material (SCM) are applied to optimize the sustainability ofthe mix design. The main variables in the microstructural analysis, theporosity and the pore structure of the hardened mixes, were assessedwith mercury intrusion porosimetry (MIP), X-ray computed tomography (XCT) and water capillary penetration analysis. Moreover,shrinkage was observed to decrease when adding metallic fibers and LFS. In general, scanning electron microscopy (SEM) observationsrevealed good quality concrete microstructures. Accelerated aging tests at a moderate temperature (72°C) produced a slight lengthening,which affected the dimensional stability of all the mixtures, which was also conditioned by their micro-porosity. The internal damageinduced by this test decreased the brittle fracture strength of the concrete mixes, although the use of GGBFS and LFS moderated thatdamage, due to the increased compliance of the cementitious matrix.
eng
Electric arc furnace slag (EAFS)
Ground granulated blast furnace slag (GGBFS)
Ladle furnace slag (LFS)
Fiber-reinforced high-workability concrete
Concrete microstructure and porosity
Dimensional stability
Microstructure and Dimensional Stability of Slag-Based High-Workability Concrete with Steelmaking Slag Aggregate and Fibers
info:eu-repo/semantics/article
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URL
https://riubu.ubu.es/bitstream/10259/7991/1/Ortega-jmce_2022.pdf
File
MD5
ced2b1e2b3acdd9efe9145febaf40856
2070946
application/pdf
Ortega-jmce_2022.pdf