Abstract
Tobermorite (TOB), the cement phase that results from the hydration of the cement, was laboratory prepared from trachyte rock (TR). The effect of the prepared TOB on the specific properties of ordinary Portland cement (OPC) was investigated. The results showed that the water of consistency or w/c ratio as well as setting times (initial and final) were increased with the addition of TOB. Also, combined water and free lime contents, bulk density, and compressive strength also increased with curing times up to 90 days, but they only increased up to 10 mass-% TOB content and then decreased. The free lime content decreased with increasingTOB content due to the deficiency of the cement. The SEM images showed that the formed hydration products with the pure OPC are the same with the prepared TOB, but with more developed crystals.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Hewlett, P.C.: Lea’s Chemistry of Cement and Concrete. 4th Ed., John Wiley & Sons Inc., New York/Toronto (1998), ISBN 10: 0-340-56589-6
Darweesh, H.H.: Effect of the combination of some pozzolanic wastes on the properties of Portland cement pastes. L’industria italiana del Cemento 808 (2005) 298–311
Darweesh, H.H.: Characteristics of metakaoline blended cement pastes. Sil. Ind. 72 (2007) [1–2] 24–32
El-Didamony, H., Darweesh, H.H., Mostafa, R.A.: Characteristics of pozzolanic cement pastes, Part I: Physico-mechanical properties. Sil. Ind. 73 (2008) [11–12] 193–200
Kersener, Z., Darweesh, H.H.M., Routil, L.L.: Mortar composites from waste materials. Cem. Hormigon 2 (2011) [943] 12–19
Darweesh, H.H.M.: Setting, hardening and st. properties of cement pastes with zeolite alone or in combination with slag. Interceram 62 (2012) [1] 52–57
Darweesh, H.H., Abdel-Kader, A.H., El-Meligy, M.G.: Utilization of pulp black liquor waste as a cement admixture. Inter. J. Basic and Appl. Sci. 2 (2013) [3] 230–238
Youssef, H., Ibrahim, D., Komarneni, S., Mackenzie, K.J.D.: Synthesis of 11 Å Al-substituted tobermorite from trachyte rock hydrothermal treatment. Ceramics Inter. 36 (2010) [1] 203–209
ASTM-Standards: Standard test method for normal water of consistency of hydraulic cement. C187 (1993) [86] 148–150
ASTM-Standards: Standard test method for setting time of hydraulic cement. C191 (1993) [92] 866–868
ASTM-Standards: Standard test method for compressive strength of dimension stone. C170 (1993) [90] 828–830
Darweesh, H.H.M., El-Alfi, E.A.: Effect of some water-soluble polymer admixtures on the hydration characteristics of Portland cement pastes. Sil. Ind. 71. (2005) [1–2] 27–32
Echart, A., Ludwig, H.M., Stark, J.: Hydration of the four main Portland cement clinker phases. Zement-Kalk-Gips 28 (1995) [8] 443–452
Ramachandran, V.S., Feldman, R.F.: Concrete admixtures handbook. Properties, science and technology. 2nd Ed., Noyes Publications, New Jersey (1995), ISBN 13: 9780815513735
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Youssef, H., Darweesh, H.M. Preparation of 11-Å Al-substituted Tobermorite from Egyptian Trachyte Rock and its Effect on the Specific Properties of Portland Cement. Interceram. - Int. Ceram. Rev. 63, 358–362 (2014). https://doi.org/10.1007/BF03401084
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF03401084