Wpływ nowej metody dodawania nanosfer krzemionkowych na właściwości mechaniczne zapraw cementowych

• Autorzy: Horszczaruk E. , Mijowska E. , Cendrowski K. , Sikora P.

Warianty tytułu

EN

Influence of the new method of nanosilica addition on the mechanical properties of cement mortars

• Języki publikacji: PL EN

Abstrakty

PL

W pracy zastosowano nową metodę dodawania nanokrzemionki do cementu w formie zawiesiny w acetonie. Stwierdzono, że metoda ta zapobiega nierównomiernemu rozproszeniu cząstek nanokrzemionki w zaprawie. Równocześnie jednak powoduje ona wzrost powietrza w świeżej zaprawie, co znacznie zmniejsza korzystny wpływ nanokrzemionki na wytrzymałość zapraw. Zastosowanie tej metody w praktyce wymaga więc rozwiązania problemu.

EN

In the paper the new method of nanosilica addition to cement as an suspension in acetone was tested. It was found that this method helps to avoid the non-uniformly dispersed nanosilica particles in mortar. However, simultaneously it caused the air content in the fresh mortars to be increased. Thus the positive influence of nanosilica on mortar strength is significantly lowered. The application of the proposed method in practise needs the solution of the problem of the increase of air content in the fresh mortar.

Słowa kluczowe

PL

zaprawa cementowa; dodatek do zapraw; nanokrzemionka; metoda wprowadzania; właściwości mechaniczne

EN

cement mortar; mortar additive; nanosilica; addition method; mechanical properties

• Wydawca: Fundacja Cement, Wapno, Beton
• Czasopismo: Cement Wapno Beton
• Rocznik: 2014
• Tom: R. 18/80, nr 5
• Strony: 308--316
• Opis fizyczny: Bibliogr. 28 poz., il., tab.

Twórcy

autor

Horszczaruk E.

• Katedra Konstrukcji Żelbetowych i Technologii Betonu, Zachodniopomorski Uniwersytet Technologiczny, Szczecin

autor

Mijowska E.

• Instytut Technologii Chemicznej Nieorganicznej i Inżynierii Środowiska, Zachodniopomorski Uniwersytet Technologiczny, Szczecin

autor

Cendrowski K.

• Instytut Technologii Chemicznej Nieorganicznej i Inżynierii Środowiska, Zachodniopomorski Uniwersytet Technologiczny, Szczecin

autor

Sikora P.

• Katedra Konstrukcji Żelbetowych i Technologii Betonu, Zachodniopomorski Uniwersytet Technologiczny, Szczecin

Bibliografia

• 1. M. Aly, M. S. J. Hashmi, A. G. Olabi et al., Effect of colloidal nano-silica on the mechanical and physical behavior of waste-glass cement mortar. Materials & Design, 33, 127-135 (2012).
• 2. M. H. Beigi et al., An experimental survey on combined effects of fibers and nanosilica on the mechanical, rheological, and durability properties of self-compacting concrete. Materials and Design, 34, 1019–1029 (2013).
• 3. A. N. Givi, S. A. Rashid, F. N. A. Aziz, et al., Experimental investigation of the size effects of SiO2 nano-particles on the mechanical properties of binary blended concrete. Composites: Part B, 41, 673-677 (2010).
• 4. A. N. Givi, S. A. Rashid, F. N. A. Aziz et al., The effects of lime solution on the properties of SiO2 nanoparticles binary blended concrete. Composites: Part B, 42, 562–569 (2011).
• 5. E. Horszczaruk, E. Mijowska, K. Cendrowski et al., Wpływ nanokrzemionki o zróżnicowanej morfologii na właściwości mechaniczne zapraw cementowych. Cement Wapno Beton, 80, 24-32 (2013).
• 6. T. Ji, Preliminary study on the water permeability and microstructure of concrete incorporating nano-SiO2. Cement and Concrete Research, 35, 1943 – 1947 (2005).
• 7. B. W. Jo et al., Characteristics of cement mortar with nano-SiO2 particles. Constr. Build. Mat., 21, 1351–1355 (2007).
• 8. S. Kawashima, P. Hou, D. J. Corr et al., Modification of cement-based materials with nanoparticles. Cem. Concr. Comp., 36, 8-15 (2013).
• 9. G. Li, Properties of high-volume fly ash concrete incorporating nano-SiO2. Cem. Concr. Res., 34, 1043–1049 (2004).
• 10. H. Li, H.-G. Xiao, J.-P. Ou, A study on mechanical and pressure-sensitive properties of cement mortar with nanophase materials. Cem. Concr. Res., 34, 435–438 (2004).
• 11. H. Li, H.-G. Xiao, J. Yuan et al., Microstructure of cement mortar with nano-particles. Composites: Part B, 35, 185–189 (2004).
• 12. H. Li, M.-H. Zhang, J.-P. Ou, Flexural fatigue performance of concrete containing nano-particles for pavement. International Journal of Fatigue, 29, 1292–1301 (2007).
• 13. M. Ltifi , A. Guefrech, P. Mounanga et al., Experimental study of the effect of addition of nano-silica on the behaviour of cement mortars. Procedia Engineering, 10, 900-905 (2011).
• 14. M. Oltlulu, R. Sahin, Single and combined effects of nano-SiO2, nano-Al2O3 and nano-Fe2O3 powders on compressive strength and capillary permeability of cement mortar containing silica fume. Materials Science and Engineering A, 528, 7012-7019 (2011).
• 15. Y. Qing, Z. Zenan, K. Deyu et al., Influence of nano-SiO2 addition on properties of hardened cement paste as compared with silica fume. Constr. Build. Mat., 21, 539–545 (2007).
• 16. A. Sadrmomtazi, A. Barzegar, Assessment of the effect of Nano-SiO2 on physical and mechanical properties of self-compacting concrete containing rice husk ash. 2nd International Conference on Sustainable Construction Materials and Technologies, Ancona, pp. 1-9 (2010).
• 17. F. Sanchez, K. Sobolev, Nanotechnology in concrete – A review. Constr. Build. Mat., 24, 2060-2071 (2010).
• 18. L. Senff et al., Effect of nano-SiO2 and nano-TiO2 addition on the rheological behavior and the hardened properties of cement mortars. Materials Science and Engineering A, 532, 354– 361 (2012).
• 19. L. Senff, J. A. Labrincha, V. M. Ferreira et al., Effect of nano-silica on rheology and fresh properties of cement pastes and mortars, Constr. Build. Mat., 23, 2487–2491 (2009).
• 20. L. Senff, J. A. Labrincha, V. M. Ferreira et al., Mortars with nano-SiO2 and micro-SiO2 investigated by experimental design. Constr. Build. Mat., 24, 1432–1437 (2010).
• 21. G. Shakhmenko, I. Juhnevica, A. Korjakins, Influence of Sol-Gel Nanosilica on Hardening Processes and Physically-Mechanical Properties of Cement Paste. Procedia Engineering, 57, 1013 – 1021 (2013).
• 22. L. P. Singh et al., Beneficial role of nanosilica in cement based materials – A review. Construction and Building Materials, 27, 1069-1077 (2013).
• 23. K. Sobolev, I. Flores, R. Hermosillo et al., Nanomaterials and Nanotechnology for High-Performance Cement Composites. Proceedings of ACI Session on “Nanotechnology of Concrete: Recent Developments and Future Perspectives”, Denver, pp. 91-118 (2006).
• 24. K. Sobolev, M. F. Gutiérrez, How nanotechnology can change the concrete world. American Ceramic Society Bulletin, 84, 14–18 (2005).
• 25. M. Stefanidou, I. Papayianni, Influence of nano-SiO2 on the Portland cement pastes. Composites: Part B, 43, 2706-2710 (2012)
• 26. J. Vera-Agullo, V. Chozas-Ligero, D. Portillo-Rico et al., Mortar and Concrete Reinforced with Nanomaterials. Nanotechnology in Construction, 3, 383-388 (2009).
• 27. H. Yang, Strength and Shrinkage Property of Nano Silica Powder Concrete. 2nd International Conference on Electronic & Mechanical Engineering and Information Technology (EMEIT-2012).
• 28. M.-H. Zhang, J. Islam, S. Peethamparan, Use of nano-silica to increase early strength and reduce setting time of concretes with high volumes of slag. Cem. Concr. Comp., 34, 650-662 (2012).