Open Access
ARTICLE
Influence of Recycled Concrete Fine Powder on Durability of Cement Mortar
Yadong Bian1, Xuan Qiu1, Jihui Zhao2,*, Zhong Li2, Jiana Ouyang2
1
School of Architectural and Civil Engineering, Zhongyuan University of Technology, Zhengzhou, 450007, China
2
School of Civil Engineering, Sun Yat-Sen University & Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai),
Zhuhai, 519082, China
* Corresponding Author: Jihui Zhao. Email:
(This article belongs to the Special Issue: Advances in Solid Waste Processing and Recycling Technologies for Civil Engineering Materials)
Fluid Dynamics & Materials Processing 2024, 20(1), 45-58. https://doi.org/10.32604/fdmp.2023.029299
Received 11 February 2023; Accepted 05 May 2023; Issue published 08 November 2023
Abstract
In this paper, the durability of cement mortar prepared with a recycled-concrete fine powder (RFP) was examined;
including the analysis of a variety of aspects, such as the carbonization, sulfate attack and chloride ion erosion
resistance. The results indicate that the influence of RFP on these three aspects is different. The carbonization
depth after 30 days and the chloride diffusion coefficient of mortar containing 10% RFP decreased by 13.3%
and 28.19%. With a further increase in the RFP content, interconnected pores formed between the RFP particles,
leading to an acceleration of the penetration rate of CO
2 and Cl
−
. When the RFP content was less than 50%, the
corrosion resistance coefficient of the compressive strength of the mortar was 0.84–1.05 after 90 days of sulfate
attack. But the expansion and cracking of the mortar was effectively alleviated due to decrease of the gypsum production. Scanning electron microscope (SEM) analysis has confirmed that 10% RFP contributes to the formation
of a dense microstructure in the cement mortar.
Graphical Abstract
Keywords
Cite This Article
APA Style
Bian, Y., Qiu, X., Zhao, J., Li, Z., Ouyang, J. (2024). Influence of recycled concrete fine powder on durability of cement mortar. Fluid Dynamics & Materials Processing, 20(1), 45-58. https://doi.org/10.32604/fdmp.2023.029299
Vancouver Style
Bian Y, Qiu X, Zhao J, Li Z, Ouyang J. Influence of recycled concrete fine powder on durability of cement mortar. Fluid Dyn Mater Proc. 2024;20(1):45-58 https://doi.org/10.32604/fdmp.2023.029299
IEEE Style
Y. Bian, X. Qiu, J. Zhao, Z. Li, and J. Ouyang "Influence of Recycled Concrete Fine Powder on Durability of Cement Mortar," Fluid Dyn. Mater. Proc., vol. 20, no. 1, pp. 45-58. 2024. https://doi.org/10.32604/fdmp.2023.029299