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Research on closed-loop utilization of engineering waste mud in engineering sites Cover

Research on closed-loop utilization of engineering waste mud in engineering sites

By: Jinsheng Zhan and  Shichun Zhao  
Open Access
|Jan 2024

Figures & Tables

Fig. 1.

(a) Waste engineering slurry; (b) Particle size distribution of solid clay particles in waste engineering slurry
(a) Waste engineering slurry; (b) Particle size distribution of solid clay particles in waste engineering slurry

Fig. 2.

Changes in the volume of supernatant after mud-water separation with the mass concentration of different flocculants
Changes in the volume of supernatant after mud-water separation with the mass concentration of different flocculants

Fig. 3.

Plot of settling time of samples after adding different flocculants
Plot of settling time of samples after adding different flocculants

Fig. 4.

Changes in volume and turbidity of supernatant over time
Changes in volume and turbidity of supernatant over time

Fig. 5.

(a) Separation effect of the combined flocculants with different addition sequences; (b) Separation effect of different slurries mixed with the same composite flocculant
(a) Separation effect of the combined flocculants with different addition sequences; (b) Separation effect of different slurries mixed with the same composite flocculant

Fig. 6.

Simulation diagram of flocculation mechanism of flocculants
Simulation diagram of flocculation mechanism of flocculants

Fig. 7.

Slump flow of different pre-mixed fluidized solidified soil
Slump flow of different pre-mixed fluidized solidified soil

Fig. 8.

(a) unconfined compressive strength and (b) water softening coefficient of the fluidized solidified soil
(a) unconfined compressive strength and (b) water softening coefficient of the fluidized solidified soil

Fig. 9.

Microscopic morphology and XRD spectra of 1 fluidized solidified soil with no flocculants (a, b) and 5 fluidized solidified soil with flocculants (c, d)
Microscopic morphology and XRD spectra of 1 fluidized solidified soil with no flocculants (a, b) and 5 fluidized solidified soil with flocculants (c, d)

Fig. 10.

Engineering demonstration application flowchart
Engineering demonstration application flowchart

Fig. 11.

Engineering Demonstration Application of Fluidized Solidified Soil on Project Sites; (a) The site for drying the sediment; (b) Measurement and transportation of sediment; (c) Mixer; (d) Fluidized solidified soil discharge; (e) Pumping pouring; (f) Self-leveling of fluidized solidified soil; (g) Curing and shaping
Engineering Demonstration Application of Fluidized Solidified Soil on Project Sites; (a) The site for drying the sediment; (b) Measurement and transportation of sediment; (c) Mixer; (d) Fluidized solidified soil discharge; (e) Pumping pouring; (f) Self-leveling of fluidized solidified soil; (g) Curing and shaping

Mix-ratio of fluidized solidified soil

SamplesSoil typeSoil (kg)Cement (kg)Water (kg)Water typeFlocculant as a percentage of cement (%)
1No flocculant100.53Tap-water0
2No flocculant100.53Supernatant with PAC+APAM<0.1%
3Add PAC100.53Supernatant with PAC~8.0%
4Add APAM100.53Supernatant with APAM~2.4%
5Add PAC+APAM100.53Supernatant with PAC+APAM~10.4%

Samples with different flocculants added

Samples1.0% PAC0.3% APAM
Original mudWater 10ml
A10ml/
B/10ml
CFirst add 10ml of PAC, stir for 10s, and then add 10ml of APAM
D10mlPAC+10ml APAM
EFirst add 10ml of APAM, stir for 10s, and then add 10ml of PAC
DOI: https://doi.org/10.2478/msp-2023-0035 | Journal eISSN: 2083-134X | Journal ISSN: 2083-1331
Language: English
Page range: 99 - 110
Submitted on: Nov 1, 2023
Accepted on: Dec 9, 2023
Published on: Jan 30, 2024
Published by: Wroclaw University of Science and Technology
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2024 Jinsheng Zhan, Shichun Zhao, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.