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Q.Z. Sang¹, X. Chen², J.-L. Zhang¹ and Y. Yuan¹

¹College of Civil Engineering, Tongji University, Shanghai, China
²College of Civil Engineering and Architecture, Jiaxing University, Zhejiang, China

doi:10.4203/ccc.6.4.1

Q.Z. Sang, X. Chen, J.-L. Zhang, Y. Yuan, "Modelling the First Exothermic Peak during Hydration of Cement incorporating Blast Furnace Slag", in P. Ivanyi, J. Kruis, B.H.V. Topping, (Editors), "Proceedings of the Seventeenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 6, Paper 4.1, 2023, doi:10.4203/ccc.6.4.1

Keywords: 3D printed concrete, blast furnace slag, hydration heat, first exothermic peak, Avrami model, cement paste.

Abstract

3D concrete printing requires well understanding of the hydration of concrete at an early-age. In order to predict the first exothermic peak during the hydration, a model for the blast-furnace slag (BFS)-blended cement is proposed. The kinetic hydration in the pre-induction stage is characterized by means of using the classical Avrami-type nucleation model. The effect of the dosage of BFS on the first exothermic peak was investigated. The dosage ranges from 0 to 40%. Both the arrival time and calorific value obtained from the model agree well with those obtained from the hydration test. This underlines the usefulness of the proposed model.

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Front Page Browse CCC CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Conferences ISSN 2753-3239 CCC: 6 PROCEEDINGS OF THE SEVENTEENTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING Edited by: P. Ivanyi, J. Kruis and B.H.V. Topping Paper 4.1 Modelling the First Exothermic Peak during Hydration of Cement incorporating Blast Furnace Slag Q.Z. Sang¹, X. Chen², J.-L. Zhang¹ and Y. Yuan¹ ¹College of Civil Engineering, Tongji University, Shanghai, China ²College of Civil Engineering and Architecture, Jiaxing University, Zhejiang, China doi:10.4203/ccc.6.4.1 Full Bibliographic Reference for this paper Q.Z. Sang, X. Chen, J.-L. Zhang, Y. Yuan, "Modelling the First Exothermic Peak during Hydration of Cement incorporating Blast Furnace Slag", in P. Ivanyi, J. Kruis, B.H.V. Topping, (Editors), "Proceedings of the Seventeenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 6, Paper 4.1, 2023, doi:10.4203/ccc.6.4.1 Keywords: 3D printed concrete, blast furnace slag, hydration heat, first exothermic peak, Avrami model, cement paste. Abstract 3D concrete printing requires well understanding of the hydration of concrete at an early-age. In order to predict the first exothermic peak during the hydration, a model for the blast-furnace slag (BFS)-blended cement is proposed. The kinetic hydration in the pre-induction stage is characterized by means of using the classical Avrami-type nucleation model. The effect of the dosage of BFS on the first exothermic peak was investigated. The dosage ranges from 0 to 40%. Both the arrival time and calorific value obtained from the model agree well with those obtained from the hydration test. This underlines the usefulness of the proposed model. download the full-text of this paper (PDF, 7 pages, 248 Kb) go to the previous paper go to the next paper return to the table of contents return to the volume description
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