The effects of low curing temperature on the properties of cement mortars containing nanosilica
Автор: Katarzyna S., Rucińska T.
Журнал: Nanotechnologies in Construction: A Scientific Internet-Journal @nanobuild-en
Рубрика: Application of nanotechnologies and nanomaterials
Статья в выпуске: 5 Vol.11, 2019 года.
Бесплатный доступ
This study presents the experimental results on the effects of curing temperature and nanosilica, on the compressive strength and absorbing properties of cement mortars. Two groups of mortars were prepared, with the first containing reference samples. The second group was modified with a nanosilica admixture by 3% of the weight of cement. The mortar specimens were cured in 20оC, 10оC and 5оC constant temperature environments. Compressive strength after 12 h, 1, 2, 7 and 28 days, water absorption and capillary porosity were evaluated on a 40×40×40 mm prism. The results confirmed that a low curing temperature delays strength development in the early days of hydration and slows down the strength growth rate of mortars, with an increase in age. The incorporation of nanosilica has a positive effect in improving the mechanical properties of cement mortars cured at low temperatures. Additionally, nanosilica contributes to decreasing the porosity of the cement matrix, so that transport properties, such as open porosity and sorptivity, improve under all curing conditions.
Cold weather, curing temperature, nanosilica, cement mortars
Короткий адрес: https://sciup.org/142227460
IDR: 142227460 | DOI: 10.15828/2075-8545-2019-11-5-536-544
Список литературы The effects of low curing temperature on the properties of cement mortars containing nanosilica
- A ACI 306 Committee. Guide to cold weather concreting. ACI 306R-10, American Concrete Institute, Farmington Hills, Michigan, USA, 2010, 26 p.
- Neville A.M., Properties of concrete, Longman, 1995.
- Conciatori D., Brühwiler E. Water adsorption in concrete at low temperature. 2nd International RILEM, Quebec City, Canada, September 11–15, vol. CD, 2006.
- Klieger P. Effect of Mixing and Curing Temperature on Concrete Strength. Portland Cement Association, 1958.
- Kropyvnytska T., Rucinska T., Ivashchyshyn H., Kotiv R., Development of Eco-Efficient Composite Cements with High Early Strength. CEE 2019: Proceedings of CEE, 2019, pp. 211–218.
- Ivanov LA., Borisova O.N., Muminova S.R. The inventions in nanotechnologies as practical solutions. Part I, Nanobuild №1-2019. DOI: 10.15828/2075-8545-2019-11-1-91-101.
- Ivanov LA., Demenev A.V., Muminova S.R. The inventions in nanotechnologies as practical solutions. Part II, Nanobuild №2-2019. DOI: 10.15828/2075-8545-2019-11-2-175-185.
- Czarnecki L. Nanotechnologia w budownictwie. Przegląd budowlany 1/2011, 2011, pp. 40–53.
- Aggarwal P., Singh R.P., Aggarwal Y. Use of nano-silica in cement based materials–A review. Cogent Eng. 2015;2:1078018. DOI: dx.doi.org/10.1080/23311916.2015.1078018.
- Potapov, V.V., Efimenko, Y.V., Gorev, D.S. Modification of concrete by hydrothermal nanosilica. Nanotehnologii v stroitel’stve. Nanotechnologies in Construction 2019, 11(3), pp. 248–265, DOI:10.15828/2075-8545-2019-11-3-248-265.
- Krivenko P.V., Sanytsky M., Kropyvnytska T., The Effect of Nanosilica on the Early Strength of Alkali-Activated Portland Composite Cements. Solid State Phenomena (Volume 296), pp. 21–26.
- Sikora P., Cendrowski K., Elrahman M.A., Chung S.Y., Mijowska E., Stephan D. The effects of seawater on the hydration, microstructure and strength development of Portland cement pastes incorporating colloidal silica. Applied Nanoscience, DOI: doi.org/10.1007/s13204-019-00993-8, 2019.
- Sikora P., Elrahman M.A., Chung S.Y., Cendrowski K., Mijowska E., Stephan D. Mechanical and microstructural properties of cement pastes containing carbon nanotubes and carbon nanotube-silica core-shell structures, exposed to elevated temperature. Cement and Concrete Composites 95 (2019) pp. 193–204. DOI: doi.org/10.1016/j.cemconcomp.2018.11.006.
- Geim A.K., Novoselov K.S. The rise of grapheme. Manchester Centre for Mesoscience and Nanotechnology, University of Manchester, 2007.
- Zabihi N., Ozkul M.H. The fresh properties of nano silica incorporating polymer-modified cement pastes, Construction and Building Materials 168, 2018, pp. 570–579.
- Senff L., Labrincha J.A., Ferreira João A.M., Hotza D., Repettee W.L. Effect of nano-silica on rheology and fresh properties of cement pastes and mortars. Construction and Building Materials, vol. 23, no. 7, 2009, pp. 2487–2491.
- Sikora P., Elrahman M.A., Stephan D. The Influence of Nanomaterials on the Thermal Resistance of Cement-Based Composites–A Review. Nanomaterials 2018, 8, 465; DOI: doi:10.3390/nano8070465.
- Shah S.P., Hou P., Konsta-Gdoutos M.S. Nano-modification of cementitious material: Toward a stronger and durable concrete. J. Sustain. Cem.-Based Mater. 2015, 5, pp. 1–22.
- Skoczylas K., Rucińska T. Strength and durability of cement mortars containing nanosilica and waste glass fine aggregate. 206 CWB-3/2018, 2018, pp. 206–215.
- Behfarnia K., Salemi N. The effects of nano-silica and nano-alumina on frost resistance of normal concrete. Constr. Build. Mater. 2013, 48, pp. 580–584.
- Dai J., Wang Q., Xie C., Xie Z., Tian X., Lou X., Guo H. Effect of Curing Temperature on Activity Index of Silica Fume, Materials Science and Engineering, Volume 381, conference 1, 2018, DOI: doi:10.1088/1757-899X/381/1/012096.
- Jun L., Yao L., Yuanquan Y., Yunpeng C. Effect of Low Temperature on Hydration Performance of the Complex Binder of Silica Fume-Portland Cement J. Wuhan Univ. Tech. 2014, pp. 175–81.
- Nassif A.Y., Petrou M.F. Influence of cold weather during casting and curing on the stiffness and strength of concrete. Construction and Building Materials 44, 2013, pp. 161–167.
- Chen Y., Deng Y-f., Li M-q. Influence of Nano-SiO2 on the Consistency, Setting Time, Early-Age Strength, and Shrinkage of Composite Cement. Advances in Materials Science and Engineering, Volume 2016, Article ID 5283706, 8 pages. DOI: dx.doi. org/10.1155/2016/5283706.
- Sikora P., Augustyniak A., Horszczaruk E., Rucinska T., Nawrotek P., Mijowska E. Characterization of Mechanical and Bactericidal Properties of Cement Mortars Containing Waste Glass Aggregate and Nanomaterials. Materials, 9(8)701, 2016, DOI: doi/10.3390/ma9080701.
