Chloride intrusion and freeze-thaw resistance of self-compacting concrete with two different nano-SiO2

G. Quercia Bianchi; P.R. Spiesz; G. Hüsken; H.J.H. Brouwers

Chloride intrusion and freeze-thaw resistance of self-compacting concrete with two different nano-SiO2

G. Quercia Bianchi, P.R. Spiesz, G. Hüsken, H.J.H. Brouwers

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/Congresprocedure › Conferentiebijdrage › Academic › peer review

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In this study two different types of nano-SiO2 were applied in self-compacting concrete (SCC), both having similar particle size distributions (PSD) but produced in two different processes (pyrogenic and colloidal precipitation). The influence of nano-SiO2 on transport phenomena in SCC was investigated using the accelerated rapid chloride migration test at different ages (28 and 91 days) as well as the long-term diffusion test. The freeze-thaw resistance, expressed by the scaling factor (Sn), was also studied. Additionally, the microstructural characteristics of the hardened concretes were investigated by FEG-SEM and MIP analyses. The obtained results demonstrate that the addition of 3.8% bwoc of nano-SiO2 improves the SCC durability due to the refinement of the microstructure and the reduction in the connectivity of the pores. Additionally, a small difference in the reactivity of both types of applied nano-SiO2 additives was demonstrated.

Originele taal-2	Engels
Titel	Proceedings of the 18th International Conference on Building Materials (IBAUSIL 2012), 12. bis 15. September, Weimar, Germany
Redacteuren	H.-B. Fischer, K.-A. Bode, C. Beuthan
Plaats van productie	Weimar, Germany
Uitgeverij	Bauhaus-Universität Weimar
Pagina's	2-0123-2-0136
ISBN van geprinte versie	978-3-00-034075-8
Status	Gepubliceerd - 2012
Evenement	18. Internationale Baustofftagung "ibausil", 12.-15. September 2012, Weimar, Deutschland - Weimar, Duitsland Duur: 12 sep. 2012 → 15 sep. 2012

Congres

Congres	18. Internationale Baustofftagung "ibausil", 12.-15. September 2012, Weimar, Deutschland
Land/Regio	Duitsland
Stad	Weimar
Periode	12/09/12 → 15/09/12
Ander	18th Ibausil, International Conference on Building Materials (Internationale Baustofftagung)

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Quercia Bianchi, G., Spiesz, P. R., Hüsken, G., & Brouwers, H. J. H. (2012). Chloride intrusion and freeze-thaw resistance of self-compacting concrete with two different nano-SiO2. In H.-B. Fischer, K.-A. Bode, & C. Beuthan (editors), Proceedings of the 18th International Conference on Building Materials (IBAUSIL 2012), 12. bis 15. September, Weimar, Germany (blz. 2-0123-2-0136). Bauhaus-Universität Weimar.

Quercia Bianchi, G. ; Spiesz, P.R. ; Hüsken, G. et al. / Chloride intrusion and freeze-thaw resistance of self-compacting concrete with two different nano-SiO2. Proceedings of the 18th International Conference on Building Materials (IBAUSIL 2012), 12. bis 15. September, Weimar, Germany. redacteur / H.-B. Fischer ; K.-A. Bode ; C. Beuthan. Weimar, Germany : Bauhaus-Universität Weimar, 2012. blz. 2-0123-2-0136

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title = "Chloride intrusion and freeze-thaw resistance of self-compacting concrete with two different nano-SiO2",

abstract = "In this study two different types of nano-SiO2 were applied in self-compacting concrete (SCC), both having similar particle size distributions (PSD) but produced in two different processes (pyrogenic and colloidal precipitation). The influence of nano-SiO2 on transport phenomena in SCC was investigated using the accelerated rapid chloride migration test at different ages (28 and 91 days) as well as the long-term diffusion test. The freeze-thaw resistance, expressed by the scaling factor (Sn), was also studied. Additionally, the microstructural characteristics of the hardened concretes were investigated by FEG-SEM and MIP analyses. The obtained results demonstrate that the addition of 3.8% bwoc of nano-SiO2 improves the SCC durability due to the refinement of the microstructure and the reduction in the connectivity of the pores. Additionally, a small difference in the reactivity of both types of applied nano-SiO2 additives was demonstrated.",

author = "{Quercia Bianchi}, G. and P.R. Spiesz and G. H{\"u}sken and H.J.H. Brouwers",

year = "2012",

language = "English",

isbn = "978-3-00-034075-8",

pages = "2--0123--2--0136",

editor = "H.-B. Fischer and K.-A. Bode and C. Beuthan",

booktitle = "Proceedings of the 18th International Conference on Building Materials (IBAUSIL 2012), 12. bis 15. September, Weimar, Germany",

publisher = "Bauhaus-Universit{\"a}t Weimar",

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Quercia Bianchi, G, Spiesz, PR, Hüsken, G & Brouwers, HJH 2012, Chloride intrusion and freeze-thaw resistance of self-compacting concrete with two different nano-SiO2. in H-B Fischer, K-A Bode & C Beuthan (uitgave), Proceedings of the 18th International Conference on Building Materials (IBAUSIL 2012), 12. bis 15. September, Weimar, Germany. Bauhaus-Universität Weimar, Weimar, Germany, blz. 2-0123-2-0136, 18. Internationale Baustofftagung "ibausil", 12.-15. September 2012, Weimar, Deutschland, Weimar, Duitsland, 12/09/12.

Chloride intrusion and freeze-thaw resistance of self-compacting concrete with two different nano-SiO2. / Quercia Bianchi, G.; Spiesz, P.R.; Hüsken, G. et al.
Proceedings of the 18th International Conference on Building Materials (IBAUSIL 2012), 12. bis 15. September, Weimar, Germany. uitgave / H.-B. Fischer; K.-A. Bode; C. Beuthan. Weimar, Germany: Bauhaus-Universität Weimar, 2012. blz. 2-0123-2-0136.

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/Congresprocedure › Conferentiebijdrage › Academic › peer review

TY - GEN

T1 - Chloride intrusion and freeze-thaw resistance of self-compacting concrete with two different nano-SiO2

AU - Quercia Bianchi, G.

AU - Spiesz, P.R.

AU - Hüsken, G.

AU - Brouwers, H.J.H.

PY - 2012

Y1 - 2012

N2 - In this study two different types of nano-SiO2 were applied in self-compacting concrete (SCC), both having similar particle size distributions (PSD) but produced in two different processes (pyrogenic and colloidal precipitation). The influence of nano-SiO2 on transport phenomena in SCC was investigated using the accelerated rapid chloride migration test at different ages (28 and 91 days) as well as the long-term diffusion test. The freeze-thaw resistance, expressed by the scaling factor (Sn), was also studied. Additionally, the microstructural characteristics of the hardened concretes were investigated by FEG-SEM and MIP analyses. The obtained results demonstrate that the addition of 3.8% bwoc of nano-SiO2 improves the SCC durability due to the refinement of the microstructure and the reduction in the connectivity of the pores. Additionally, a small difference in the reactivity of both types of applied nano-SiO2 additives was demonstrated.

AB - In this study two different types of nano-SiO2 were applied in self-compacting concrete (SCC), both having similar particle size distributions (PSD) but produced in two different processes (pyrogenic and colloidal precipitation). The influence of nano-SiO2 on transport phenomena in SCC was investigated using the accelerated rapid chloride migration test at different ages (28 and 91 days) as well as the long-term diffusion test. The freeze-thaw resistance, expressed by the scaling factor (Sn), was also studied. Additionally, the microstructural characteristics of the hardened concretes were investigated by FEG-SEM and MIP analyses. The obtained results demonstrate that the addition of 3.8% bwoc of nano-SiO2 improves the SCC durability due to the refinement of the microstructure and the reduction in the connectivity of the pores. Additionally, a small difference in the reactivity of both types of applied nano-SiO2 additives was demonstrated.

M3 - Conference contribution

SN - 978-3-00-034075-8

SP - 2-0123-2-0136

BT - Proceedings of the 18th International Conference on Building Materials (IBAUSIL 2012), 12. bis 15. September, Weimar, Germany

A2 - Fischer, H.-B.

A2 - Bode, K.-A.

A2 - Beuthan, C.

PB - Bauhaus-Universität Weimar

CY - Weimar, Germany

T2 - 18. Internationale Baustofftagung "ibausil", 12.-15. September 2012, Weimar, Deutschland

Y2 - 12 September 2012 through 15 September 2012

ER -

Quercia Bianchi G, Spiesz PR, Hüsken G, Brouwers HJH. Chloride intrusion and freeze-thaw resistance of self-compacting concrete with two different nano-SiO2. In Fischer HB, Bode KA, Beuthan C, redacteurs, Proceedings of the 18th International Conference on Building Materials (IBAUSIL 2012), 12. bis 15. September, Weimar, Germany. Weimar, Germany: Bauhaus-Universität Weimar. 2012. blz. 2-0123-2-0136

Chloride intrusion and freeze-thaw resistance of self-compacting concrete with two different nano-SiO2

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