RT info:eu-repo/semantics/conferenceObject
T1 Compressive-Strength Evaluation of Recycled Aggregate Self-compacting Concrete Through Hammer Rebound Index
A1 Revilla Cuesta, Víctor
A1 Ortega López, Vanesa
A1 Faleschini, Flora
A1 Santamaría, Amaia
A1 Skaf Revenga, Marta
K1 Hammer rebound index
K1 Quality control
K1 Recycled Concrete
K1 Self-compacting concrete
K1 Statistical modeling
K1 Materiales de construcción
K1 Building materials
K1 Hormigón-Ensayos
K1 Concrete-Testing
AB Hammer rebound index is an indirect measure that has traditionally been used to estimate the compressive strength of concrete through the use of statistical models. It is especially useful in the quality control performed during the construction of a concrete structure, as well as in rehabilitation works. The high content of fine aggregate and aggregate powder of Self-Compacting Concrete (SCC) reduces its surface hardness and causes that the models traditionally used to estimate the compressive strength through this indirect measure in conventional concrete are not valid. On the other hand, Recycled Concrete Aggregate (RCA) has a lower surface hardness than Natural Aggregate (NA) due to the presence of adhered mortar, which causes that its addition prevents of using the currently existing models. Therefore, this paper aims to prove the validity of this indirect measure for the in-situ estimation of compressive strength of recycled aggregate SCC. Furthermore, it is also analyzed how the relationship between this indirect measure and the compressive strength of SCC is affected by the modification of the fine RCA content or the nature of the aggregate powder, two aspects that remarkably condition the design and behavior of SCC. The final objective is to provide a useful tool/model that promotes the use of SCC with RCA in real structures.
PB Springer
SN 2366-2557
YR 2022
FD 2022
LK http://hdl.handle.net/10259/10243
UL http://hdl.handle.net/10259/10243
LA eng
NO Comunicación presentada en:  1St conference of the European Association on Quality Control of Bridges and Structures (EUROSTRUCT) 2021, en septiembre en Padova (Italia)
NO This research work was supported by the Spanish Ministry of Universities, MICINN, AEI, EU, ERDF and NextGenerationEU [grant numbers PID2020-113837RB-I00; 10.13039/501100011033; TED2021-129715B-I00]; the Junta de Castilla y León (Regional Government) and ERDF [grant number UIC-231]; and the University of Burgos [grant number SUCONS, Y135.GI].
DS Repositorio Institucional de la Universidad de Burgos
RD 03-mar-2025