Proceedings of the 3rd International Conference on Green Building, Civil Engineering and Smart City (GBCESC 2024)

<Previous Article In Volume
Next Article In Volume>

Study on Mechanical Strength, Early Hydration Behavior and Hydration Mechanism of Phosphogypsum-based Cement Material

Authors
Cheng Hu1, 3, Guanju Lu2, Weiheng Xiang2, 3, *, Neng Wang2
1Guangxi Key Laboratory of Green Building Materials and Construction Industrialization, Guilin University of Technology, Guilin, 541004, China
2School of Civil Engineering, Guilin University of Technology, Guilin, 541004, China
3Guangxi Engineering and Technology Center for Utilization of Industrial Waste Residue in Building Materials, Guilin University of Technology, Guilin, 541004, China
*Corresponding author. Email: 2021072@glut.edu.cn
Corresponding Author
Weiheng Xiang
Available Online 19 May 2025.
DOI
10.2991/978-94-6463-728-1_9How to use a DOI?
Keywords
phosphogypsum; cementitious material; early strength; hydration heat; concentration of Soluble Phosphorus
Abstract

Nowadays, the utilization of phosphogypsum (PG) as source is a hotspot along the world. This experiment investigated the impact of varying amounts of steel slag (SS) on the initial performance of PG modified with steel slag. The mechanical property and hydrated mechanism of PG-based cementitious material were investigated through mechanical strength test, hydration heat. XRD, concentration of Soluble Phosphorus and SEM, The results indicate that the early strength of-based cement mortar modified with 5% and 10 SS was significantly enhanced. From the linear fitting curve of absorbance and phosphate ion concentration, as well as the absorbance of the original PG and modified PG extracts, it can be calculated that the phosphate ion in steel slag modified PG is 0.24 mg/L, which is much lower than the original PG (6.41 mg/L). It is concluded that the performance of PG-based cement is enhanced through SS modification.

Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Download article (PDF)

<Previous Article In Volume
Next Article In Volume>
Volume Title
Proceedings of the 3rd International Conference on Green Building, Civil Engineering and Smart City (GBCESC 2024)
Series
Advances in Engineering Research
Publication Date
19 May 2025
ISBN
978-94-6463-728-1
ISSN
2352-5401
DOI
10.2991/978-94-6463-728-1_9How to use a DOI?
Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Cheng Hu
AU  - Guanju Lu
AU  - Weiheng Xiang
AU  - Neng Wang
PY  - 2025
DA  - 2025/05/19
TI  - Study on Mechanical Strength, Early Hydration Behavior and Hydration Mechanism of Phosphogypsum-based Cement Material
BT  - Proceedings of the 3rd International Conference on Green Building, Civil Engineering and Smart City (GBCESC 2024)
PB  - Atlantis Press
SP  - 71
EP  - 78
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-728-1_9
DO  - 10.2991/978-94-6463-728-1_9
ID  - Hu2025
ER  -