Combined effect of nano-SiO2 and nano-Fe2O3 on compressive strength, flexural strength, porosity and electrical resistivity in cement mortars

Authors

DOI:

https://doi.org/10.3989/mc.2018.10716

Keywords:

Active addition, Mortar, Compressive strength, Mechanical properties, Hydration

Abstract


The compressive strength, flexural strength, porosity and electrical resistivity properties of cement mortars with nano-Fe2O3 and nano-SiO2 are studied. Amorphous silica is the main component of pozzolanic materials due to its reaction with calcium hydroxide formed from calcium silicate (C3S and C2S) hydration. The pozzolanic reaction rate is not only proportional to the amount of amorphous silica but also to the surface area available for reaction. Subsequently, fine nano-Fe2O3 and nano-SiO2 particles in mortars are expected to improve mortar performance. The experimental results showed that the compressive strength of mortars with nano-Fe2O3 and nano-SiO2 particles were lower than those obtained with the reference mortar at seven and 28 days. It was shown that the nano-particles were not able to enhance mechanical strength on every occasion. The continuous microstructural progress monitored by mercury intrusion porosimetry (MIP) measurements, pore-size distribution (PSD), total porosity and critical pore diameter also confirmed such results.

Downloads

Download data is not yet available.

References

Pavía, H.; Velosa, A.; Cachim, P.; Ferreira, V.M. (2016) Effect of pozzolans with different physical and chemical characteristics on concrete properties. Mater. Construcc. 66 [322], e083. https://doi.org/10.3989/mc.2016.01815

Fairbairn, E.M.R.; Americano, B.B.; Cordeiro, G.C.; Paula, T.P.; Toledo Filho, R.D.; Silvoso, M.M. (2010) Cement replacement by sugar cane bagasse ash: CO2 emissions reduction and potential for carbon credits. J. Environ. Manag. 91 [9], 1864–1871. https://doi.org/10.1016/j.jenvman.2010.04.008 PMid:20493626

Argiz, C.; Menéndez, E.; Sanjuán, M.A. (2013) Effect of mixes made of coal bottom ash and fly ash on the mechanical strength and porosity of Portland cement. Mater. Construcc. 309, 49–64.

Roux, N.; Andrade, C.; Sanjuán, M. (1996) Experimental Study of Durability of Reactive Powder Concretes. J. Mater. Civil Eng. 8 [1], 1–6. https://doi.org/10.1061/(ASCE)0899-1561(1996)8:1(1)

Sanjuán, M.A.; Argiz, C.; Gálvez, J.C.; Moragues, A. (2015) Effect of silica fume fineness on the improvement of Portland cement strength performance. Constr. Build. Mater. 96, 55–64. https://doi.org/10.1016/j.conbuildmat.2015.07.092

Qing, Y.; Zenan, Z.; Deyu, K.; Rongshen, Ch. (2007) Influence of nano-SiO2 addition on properties of hardened cement paste as compared with silica fume. Constr. Build. Mater. 21(3), 539–545. https://doi.org/10.1016/j.conbuildmat.2005.09.001

Haruehansapong,S.; Pulngern, T.; Chucheepsakul, S. (2014) Effect of the particle size of nanosilica on the compressive strength and the optimum replacement content of cement mortar containing nano-SiO2. Constr. Build. Mater. 50, 471–477. https://doi.org/10.1016/j.conbuildmat.2013.10.002

Li, H.; Xiao, H.; Yuan, J.; Ou, J. (2004) Microstructure of cement mortar with nano-particles. Compos Part B Eng. 35 [2], 185–189. https://doi.org/10.1016/S1359-8368(03)00052-0

Jo, B.W.; Kim, C.H.; Tae, G.H. (2007) Characteristics of cement mortar with nano-SiO2 particles. Construct. Build. Mater. 21, 1351–1355. https://doi.org/10.1016/j.conbuildmat.2005.12.020

Lin, K.L.; Chang, W.C.; Lin, D.F.; Luo, H.L.; Tsai, M.C. (2008) Effects of nano-SiO2 and different ash particle sizes on sludge ash-cement mortar. J. Environ. Manage. 88 [4], 708–714. https://doi.org/10.1016/j.jenvman.2007.03.036 PMid:17498863

Ji, T. (2005) Preliminary study on the water permeability and microstructure of concrete incorporating nano-SiO2. Cem. Concr. Res. 35 [10], 1943–1947. https://doi.org/10.1016/j.cemconres.2005.07.004

Nazari, A.; Riahi, S. (2011) Splitting tensile strength of concrete using ground granulated blast furnace slag and SiO2 nano-particles as binder. Energ. Buildings 43 [4], 864–872. https://doi.org/10.1016/j.enbuild.2010.12.006

Jalal, M.; Mansouri, E.; Sharifipour, M.; Pouladkhan, A.R. (2012) Mechanical, rheological, durability and microstructural properties of high performance self-compacting concrete containing SiO2 micro and nanoparticles. Mater. Design 34, 389–400. https://doi.org/10.1016/j.matdes.2011.08.037

Oltulu, M.; Sahin, R. S. (2011) 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. Mater. Sci. Eng. A 528 [22–23], 7012–7019. https://doi.org/10.1016/j.msea.2011.05.054

Mohseni, E.; Miyandehi, B.M.; Yang, J.; Yazdi, M.A. (2015) Single and combined effects of nano-SiO2, nano-Al2O3 and nano-TiO2 on the mechanical, rheological and durability properties of self-compacting mortar containing fly ash. Constr. Build. Mater. 84, 331–340. https://doi.org/10.1016/j.conbuildmat.2015.03.006

Horszczaruk, E.; Mijowska, E.; Cendrowski, K.; Mijowska, S.; Sikora, P. (2014) Effect of incorporation route on dispersion of mesoporous silica nanospheres in cement mortar. Constr. Build. Mater. 66, 418–421. https://doi.org/10.1016/j.conbuildmat.2014.05.061

Kontoleontos, F.; Tsakiridis, P.E.; Marinos, A.; Kaoidas, V.; Katsioti, M. (2012) Influence of colloidal nanosilica on ultrafine cement hydration: Physicolchemical and microstructural characterization. Constr. Build. Mater. 35, 347–360. https://doi.org/10.1016/j.conbuildmat.2012.04.022

Sáez del Bosque, I.F.; Martínez-Ramírez; S.; Blanco-Varela, M.T. (2015) Calorimetric study of the early stages of the nanosilica - tricalcium silicate hydration. Effect of temperature. Mater. Construcc. 65 [320], e070. https://doi.org/10.3989/mc.2015.06814

Thomas, J.J.; Jennings, H.M.; Chen, J.J. (2009) Influence of Nucleation Seeding on the Hydration Mechanisms of Tricalcium Silicate and Cement. J. Phys. Chem. C 113 [11], 4327–4334. https://doi.org/10.1021/jp809811w

Land, G.; Stephan, D. (2012) The influence of nano-silica on the hydration of ordinary Portland cement. J. Mater. Sci. 47 [2], 1011–1017. https://doi.org/10.1007/s10853-011-5881-1

Tashima, M.M.; Soriano, L.; Monzó, J.; Borrachero, M.V.; Akasaki, J.L.; Payá, J. (2014) New method to assess the pozzolanic reactivity of mineral admixtures by means of pH and electrical conductivity measurements in lime:pozzolan suspensions. Mater. Construcc. 64 [316], e032. https://doi.org/10.3989/mc.2014.00914

Kong, D.; Du, X.; Wei, X.; Zhang, H.; Yang, Y.; Shah, S. P. (2012) Influence of nano-silica agglomeration on microstructure and properties of the hardened cement-based materials. Constr. Build. Mater. 37, 707–715. https://doi.org/10.1016/j.conbuildmat.2012.08.006

EN 196–1 (2016) Methods of testing cement - Part 1: Determination of strength. European Committee for Standardization (CEN), Brussels.

EN 934–2 (2009) Admixtures for concrete, mortar and grout - Part 2: Concrete admixtures - Definitions, requirements, conformity, marking and labelling. European Committee for Standardization (CEN), Brussels.

ASTM C1202 (2012) Standard Test Method for Electrical Indication of Concrete's Ability to Resist Chloride Ion Penetration. Book of Standards Volume: 04.02. ASTM International, West Conshohocken, PA, 19428–2959 USA.

UNE 83988–1 (2008) Concrete durability. Test methods. Determination of the electrical resistivity. Part 1: Direct test (reference method). AENOR, Madrid.

Andrade, C. (1993) Calculation of chloride diffusion coefficients in concrete from ionic migration measurements. Cem. Concr. Res. 23 [3], 724–742. https://doi.org/10.1016/0008-8846(93)90023-3

Sanjuán M.A. (2000) Overview on electrochemical parameters to assess the corrosion state of steel reinforcement in calcium aluminate cement mortar and concrete. J. Mater. Sci. 35 [1], 105–108. https://doi.org/10.1023/A:1004748801193

Sajedi, F.; Razak, H.A. (2011) Effects of curing regimes and cement fineness on the compressive strength of ordinary Portland cement mortars. Constr. Build. Mater. 25, 2036–2045. https://doi.org/10.1016/j.conbuildmat.2010.11.043

Andrade, C.; D'Andrea, R. (2010) Electrical resistivity as microstructural parameter for the modelling of service life of reinforced concrete structures. 2nd International Symposium on Service Life Design for Infrastructure, 4–6 October 2010, Delft, The Netherlands. 379–388. PMid:21181198 PMCid:PMC3312604

Published

2018-03-30

How to Cite

Sanjuán, M. A., Argiz, C., Gálvez, J. C., & Reyes, E. (2018). Combined effect of nano-SiO2 and nano-Fe2O3 on compressive strength, flexural strength, porosity and electrical resistivity in cement mortars. Materiales De Construcción, 68(329), e150. https://doi.org/10.3989/mc.2018.10716

Issue

Section

Research Articles

Most read articles by the same author(s)

1 2 > >>