Open Access
ARTICLE
Characterization of Mechanical Properties of Waste Slurry Modified by Recycled Sand and Cement
Beifeng Lv, Na Li*, Haibo Kang, Yanting Wu, Ben Li, Wei Wang
School of Civil Engineering, Shaoxing University, Shaoxing, 312000, China
* Corresponding Author: Na Li. Email:
Journal of Renewable Materials 2022, 10(10), 2669-2683. https://doi.org/10.32604/jrm.2022.019418
Received 23 September 2021; Accepted 22 November 2021; Issue published 08 June 2022
Abstract
In order to study the modification effect of recycled sand on cement reinforced waste slurry (CWS), triaxial test,
scanning electron microscope test and X-ray diffraction test were carried out. The mechanical test of recycled
sand and cement reinforced waste slurry (RCWS) shows that the deviatoric stress–strain curve of RCWS samples
changes from hardening type to softening type with the increase of recycled sand content; the peak stress
increases with the increase of recycled sand content; recycled sand can enhance the shear strength of CWS by
increasing both cohesion and internal friction angle. The microscopic test shows that recycled sand can improve
the structural compactness by cementing with hydrated calcium silicate and can reduce the void ratio and orientation index of RCWS samples. Finally, the mathematical model between shear strength parameters and void ratio
is established. The research shows that adding an appropriate amount of recycled sand and cement has a good
modification effect on waste slurry. This is an effective method to treat two kinds of construction wastes: construction waste slurry and waste concrete.
Keywords
Cite This Article
Lv, B., Li, N., Kang, H., Wu, Y., Li, B. et al. (2022). Characterization of Mechanical Properties of Waste Slurry Modified by Recycled Sand and Cement.
Journal of Renewable Materials, 10(10), 2669–2683. https://doi.org/10.32604/jrm.2022.019418