Distribution & Access For Publication Downloads News About Us Contact Us
Paper Titles
Constraint Handling and Flow Control in Stirred Tank Bioreactors with Magnetically Coupled Impellers
p.189
Cellulose Modification with Maleic Anhydride
p.197
Study of a Novel Biorefining Method for Obtaining 2-Furaldehyde, Acetic Acid and Pulp from Birch Wood
p.204
Effect of Modified Starch on Properties of Clay Composites
p.215
Preparation of Inorganic Foam Glass-Ceramic with Utilization of Waste Diatomite as a Raw Material
p.222
Influence of Microstructure on Physico-Mechanical Properties and Corrosion Resistance of Refractory Forsterite-Spinel Ceramics
p.229
Foam Glass Preparation from Waste Diatomite: Assessment of High Temperature Behaviour and Foaming Ability
p.235
Corrosion Properties of Castables with Various Calcium Oxide Content
p.241
29Si NMR Investigation of the Effect of Acetic and Oxalic Acids on Portland-Limestone Cement Hydration
p.247

29Si NMR Investigation of the Effect of Acetic and Oxalic Acids on Portland-Limestone Cement Hydration

Article Preview

Abstract:

The use of carboxylic acids in mix design alters the hydration process of cement, the resulting pore structure of the obtained cement paste, and, consequently, the mechanical properties of concrete. All these changes are directly related to the structure of the calcium silicate hydrate phase. In the present study, the effect of acetic acid and oxalic acid on the hydration of Portland-limestone cement was monitored using solid state 29Si NMR spectroscopy. The results showed that acetic acid facilitated alite and belite hydration, however, the formation of polymerized silicate chains, incorporating Q2p species, begun later than in pure cement paste. Oxalic acid accelerated the polymerization, but slowed down alite and belite hydration. Such behaviors may correspond to decreased porosity (acetic acid addition) and increased strength (oxalic acid addition). Both acids accelerated belite hydration, compared to the pure paste, likely due to an increased acidity of the pore solution. The findings provide structural information about C─S─H phase, to be considered for thaumasite sulfate attack investigations on Portland-limestone cement pastes containing carboxylic acids.

You might also be interested in these eBooks
20th Silicate Binders View Preview
Construction and Bio-Based Materials: Properties and Technologies View Preview

Info:

Periodical:

Materials Science Forum (Volume 1071)

Pages:

247-252

DOI:

https://doi.org/10.4028/p-73l5m1

Citation:

Cite this paper

Online since:

October 2022

Authors:

Anton S. Mazur, Peter M. Tolstoy, Konstantinos Sotiriadis*

Keywords:

Hydration, NMR Spectroscopy, Organic Additives, Portland-Limestone Cement

Export:

RIS, BibTeX

Price:

Permissions:

Request Permissions

* - Corresponding Author

References

[1] L.-O. Nilsson, Durability concept; pore structure and transport processes, in: J. Newman, B.S. Choo (Eds.), Advanced Concrete Technology (Concrete Properties), Elsevier Ltd., Butterworth-Heinemann (Elsevier Ltd.), Burlington MA, 2003, p.8/5.

DOI: 10.1016/b978-075065686-3/50255-x

Google Scholar

[2] N.J. Crammond, The thaumasite form of sulfate attack in the UK, Cem. Concr. Compos. 25 (2003) 809-818.

DOI: 10.1016/s0958-9465(03)00106-9

Google Scholar

[3] EN 197-1, Cement – Part 1: Composition, specifications and conformity criteria for common cements, CEN/TC 51/WG 6, Brussels, (2011).

Google Scholar

[4] ASTM C595/C595M–21, Standard specification for blended hydraulic cements, West Conshohocken, PA, USA, (2021).

Google Scholar

[5] E. Worrell, K. Kermeli, Ch. Galitsky, Energy Efficiency Improvement and Cost Saving Opportunities for Cement Making, An ENERGY STAR® Guide for Energy and Plant Managers, USA, 2013, p.141.

DOI: 10.2172/927882

Google Scholar

[6] P. Hawkins, P. Tennis and R. Detwiler, The Use of Limestone in Portland Cement: A State-of-the-Art Review, EB227, Portland Cement Association, Skokie, Illinois, USA, 2005, p.44.

Google Scholar

[7] ACI Educational Bulletin E4-12, Chemical Admixtures for Concrete, Committee E-701, Farmington Hills, MI, USA, 2013, pp. E4-6-E4-10.

Google Scholar

[8] D.D. Nguyen, L.P. Devlin, P. Koshy, C.C. Sorrell, Effects of acetic acid on early hydration of Portland cement, J. Therm. Anal. Calorim. 123 (2016) 489–499,.

DOI: 10.1007/s10973-015-4942-0

Google Scholar

[9] N.K. Singh, P.C. Mishra, V.K. Singh, K.K. Narang, Effects of hydroxyethyl cellulose and oxalic acid on the properties of cement, Cem. Concr. Res. 33 (2003) 1319–1329,.

DOI: 10.1016/s0008-8846(03)00060-7

Google Scholar

[10] G. Möschner, B. Lothenbach, R. Figi, R. Kretzschmar, Influence of citric acid on the hydration of Portland cement, Cem. Concr. Res. 39 (2009) 275–282,.

DOI: 10.1016/j.cemconres.2009.01.005

Google Scholar

[11] S. Rai, N.B. Singh, N.O. Singh, Interaction of tartaric acid during hydration of Portland cement, Indian J. Chem. Techn. 13 (2006) 255–261.

Google Scholar

[12] J. Skalny, J. Marchand, I. Odler, Sulfat Attack on Concrete, first ed., Spon Press, Abingdon, (2002).

Google Scholar

[13] D.C. MacLaren, M.A. White, Cement: its chemistry and properties, J. Chem. Educ. 80 (2003) 623–635, https://doi.org/10.1021/ed080p623.

Google Scholar

[14] I.G. Richardson, J. Skibsted, L. Black, R.J. Kirkpatrick, Characterisation of cement hydrate phases by TEM, NMR and Raman spectroscopy, Adv. Cem. Res. 22 (2010) 233–248,.

DOI: 10.1680/adcr.2010.22.4.233

Google Scholar

[15] I.G. Richardson, The calcium silicate hydrates, Cem. Concr. Res. 38 (2008) 137–158,.

Google Scholar

[16] B. Walkley, J.L. Provis, Solid-state nuclear magnetic resonance spectroscopy of cements, Mater. Today Adv. 1 (2019) 100007,.

DOI: 10.1016/j.mtadv.2019.100007

Google Scholar

[17] G. Engelhardt, Silicon-29 NMR of solid silicates, in: R.K. Harris, R. Wasylishen (Eds.), Encycl. Magn. Reson, John Wiley & Sons, Ltd, Chichester, UK, 2007,.

Google Scholar

[18] M.D. Andersen, H.J. Jakobsen, J. Skibsted, Incorporation of aluminum in the calcium silicate hydrate (C-S-H) of hydrated Portland cements: a high-field 27Al and 29Si MAS NMR investigation, Inorg. Chem. 42 (2003) 2280–2287,.

DOI: 10.1021/ic020607b

Google Scholar

[19] A.R. Brough, C.M. Dobson, I.G. Richardson, G.W. Groves, In situ solid-state NMR studies of Ca3SiO5: hydration at room temperature and at elevated temperatures using 29Si enrichment, J. Mater. Sci. 29 (1994) 3926–3940,.

DOI: 10.1007/bf00355951

Google Scholar

[20] Portland Cement Association, the National Ready Mixed Concrete Association and the MIT CSHub, Improving Concrete Sustainability Through Alite and Belite Reactivity, 2013, p.20.

Google Scholar

[21] A. Smith, Y. El Hafiane, J.P. Bonnet, Role of a small addition of acetic acid on the setting behavior and on the microstructure of a calcium aluminate cement, J. Am. Cem. Soc. 88 (2005) 2079–2084,.

DOI: 10.1111/j.1551-2916.2005.00414.x

Google Scholar

[22] W. Kunther, S. Ferreiro, Jorgen Skibsted, Influence of the Ca/Si ratio on the compressive strength of cementitious calcium-silicate-hydrate binders, J. Mater. Chem. A 5 (2017) 17401–17412,.

DOI: 10.1039/c7ta06104h

Google Scholar

[23] UN Environment, K.L. Scrivener, V.M. John, E.M. Gartner, Eco-efficient cements: potential economically viable solutions for a low-CO2 cement-based materials industry, Cem. Concr. Res. 114 (2018) 2–26,.

DOI: 10.1016/j.cemconres.2018.03.015

Google Scholar

Scientific.Net is a registered brand of Trans Tech Publications Ltd
© 2024 by Trans Tech Publications Ltd. All Rights Reserved