The effect of micro-particle addition on internal dissipation of concrete was experimentally investigated. The idea was to increase the internal friction and improve the related damping performances of the material by allowing the presence of micro-particles inside the concrete pores, thus changing the contact interaction between internal surfaces of pores. However, a high percentage of micro-particle addition could either hinder the sliding or even degrade the mechanical strength of the material. Thus, the optimal percentage has to be experimentally determined for every mixtures one considers. In our study, specimens were tested under cyclic loading to evaluate energy dissipation. In some enriched mixtures presenting a not too low water/cement ratio a significant increase in damping capability is observed with respect to standard concrete. We used experimental data to perform a parameter identification and found that the employed micromorphic model is suitable to forecast the dissipative behavior of the material. © 2016 Elsevier L
Towards the design of an enriched concrete with enhanced dissipation performances / Scerrato, Daria; Giorgio, Ivan; DELLA CORTE, Alessandro; Madeo, A.; Dowling, N. E.; Darve, F.. - In: CEMENT AND CONCRETE RESEARCH. - ISSN 0008-8846. - STAMPA. - 84:(2016), pp. 48-61. [10.1016/j.cemconres.2016.03.002]
Towards the design of an enriched concrete with enhanced dissipation performances
SCERRATO, DARIA;GIORGIO, IVAN;DELLA CORTE, ALESSANDRO;
2016
Abstract
The effect of micro-particle addition on internal dissipation of concrete was experimentally investigated. The idea was to increase the internal friction and improve the related damping performances of the material by allowing the presence of micro-particles inside the concrete pores, thus changing the contact interaction between internal surfaces of pores. However, a high percentage of micro-particle addition could either hinder the sliding or even degrade the mechanical strength of the material. Thus, the optimal percentage has to be experimentally determined for every mixtures one considers. In our study, specimens were tested under cyclic loading to evaluate energy dissipation. In some enriched mixtures presenting a not too low water/cement ratio a significant increase in damping capability is observed with respect to standard concrete. We used experimental data to perform a parameter identification and found that the employed micromorphic model is suitable to forecast the dissipative behavior of the material. © 2016 Elsevier LFile | Dimensione | Formato | |
---|---|---|---|
Scerrato_TowardsTheDesign_2016.pdf
solo gestori archivio
Tipologia:
Versione editoriale (versione pubblicata con il layout dell'editore)
Licenza:
Tutti i diritti riservati (All rights reserved)
Dimensione
4.33 MB
Formato
Adobe PDF
|
4.33 MB | Adobe PDF | Contatta l'autore |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.