Influence of weak acid salts and curing condition on supersulfated cement mortar

• Autorzy: Son Nguyen Khanh , Huynh Nguyen Ngoc Tri , Imjai Thanongsak , Abdullah Mohd Mustafa Al Bakri , Błoch Katarzyna

Identyfikatory

DOI

10.24425/ace.2024.151001

• Języki publikacji: EN

Abstrakty

EN

This study explores the impact of weak acid salt agents (citrate and tartrate) in the mixture and various curing conditions on the properties of supersulfated cement (SSC) mortar. Compressive strength tests were conducted on prism-shaped samples measuring 4 x 4 x 16 cm. A comprehensive analysis of the phase assemblage of hardened products was carried out using X-ray diffraction (XRD), differential scanning calorimetry (DSC), and scanning electron microscopy (SEM) coupled with energy-dispersive X-ray spectroscopy (EDS). The results reveal the abundant formation of ettringite (E) and hydrotalcite (Ht) when weak acid salt agents are added, especially in chloride and sulfate-rich curing solutions, leading to a notable increase in compressive strength, up to 200% compared to the control sample. Furthermore, the study demonstrates a substantial improvement in early and overall strength under temperature-stimulated curing conditions, accelerating the hydration reaction of SSC. These findings provide deeper insights into the factors influencing SSC hardening and strength development, offering valuable information for enhancing the efficiency and utilization of SSC in the construction industry, aligning with the goals of sustainable development.

• Wydawca: Komitet Inżynierii Lądowej i Wodnej PAN ; Politechnika Warszawska, Wydział Inżynierii Lądowej
• Czasopismo: Archives of Civil Engineering
• Rocznik: 2024
• Tom: Vol. 70, nr 3
• Strony: 545--559
• Opis fizyczny: Bibliogr. 11 poz., il., tab.

Twórcy

autor

Son Nguyen Khanh

• Ho Chi Minh City University of Technology - VNU-HCM, Faculty of Materials Technology, Ho Chi Minh city, Vietnam

• https://orcid.org/0000-0002-4173-687X

autor

Huynh Nguyen Ngoc Tri

• Ho Chi Minh City University of Technology - VNU-HCM, Faculty of Materials Technology, Ho Chi Minh city, Vietnam

• https://orcid.org/0000-0003-2085-3564

autor

Imjai Thanongsak

• Walailak University, School of Engineering and Technology, Nakhonsithammarat, Thailand

• https://orcid.org/0000-0002-3220-7669

autor

Abdullah Mohd Mustafa Al Bakri

• Centre of Excellence Geopolymer and Green Technology (CEGeoGTech), Universiti Malaysia Perlish (UniMAP), Perlis, Malaysia

• https://orcid.org/0000-0002-9779-8586

autor

Błoch Katarzyna

• Czestochowa University of Technology, Department of Physics, Faculty of Production Engineering and Materials Technology, Częstochowa, Poland

• https://orcid.org/0000-0002-5405-1845

Bibliografia

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• [3] BS-EN 15743:2010 Supersulfated cement - Composition, specifications and conformity criteria. 2010.
• [4] T. Matschei, F. Bellmann, and J. Stark, “Hydration behaviour of sulphate-activated slag cements”, Advances in Cement Research, vol. 17, no. 4, pp. 167-178, 2005, doi: 10.1680/adcr.2005.17.4.167.
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• [8] A. Guimond-Barrett, “Influence of mixing and curing conditions on the characteristics and durability of soils stabilised by deep mixing”, PhD thesis, Université du Havre, 2013.
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• [10] A. Gruskovnjak, B. Lothenbach, F. Winnefeld, R. Figi, S.C. Ko, M. Adlerm, and U.Mäder, “Hydration mechanisms of super sulphated slag cement”, Cement and Concrete Research, vol. 38, no. 7, pp. 983-992, 2008, doi: 10.1016/j.cemconres.2008.03.004.
• [11] K. S. Nguyen, et al., “Chloride Binding Ability and Anti-corrosion Properties of Supersulfated Cement in Seawater/Sand Mixing Concrete”, in Lecture Notes in Civil Engineering, vol. 8: Proceedings of the 4th Congrès International de Géotechnique-Ouvrages-Structures: CIGOS 2017, 26-28 October 2017, Ho Chinh Minh city, Vietnam, H. H. Tran-Nguyen, et al., Eds. Springer, 2018, pp. 367-376, doi: 10.1007/978-981-10-6713-6_36.