Conventional treatment of
shield muck always causes adverse impact to ecological environment. Thus, to
improve the resource utilization efficiency of shield muck, metal ion complex
ZY-1 is used to strengthen the
hydration reaction during the solidification process of shield muck. Through
potential testing, the influence of ZY-1 on ζ potential across various particle surfaces is analyzed, and
empirical parameter equations are provided. During the test, pure water is used
and 1 mL of KCI electrolyte with a concentration of 0.01 mmol/L is added to
make a test sample suspension to ensure a single variable environment. ZY-1 concentrations are set at 0, 20, 40, 60, 80, and 100 mmol/L,
respectively. The results show the following: (1) Metal ion complex effectively
reduces ζ potential on various particle
surfaces, diminishing the outer electric layer thickness, narrowing particle
spacing, and enhancing consolidation.
(2) ZY-1 shows the most significant reduction in ζ potential on cement particle surfaces; at a concentration increase
from 0 to 100 mmol/L,
cement particle ζ potential decreases by 61.61%. (3) The
sequence of metal ion complex impact on ζ potential
across different particle surfaces is as follows: cement > shield muck >
calcium carbonate > calcium sulfate.
LIAO Yunyang
,
ZHANG Heng
,
LIAO Rupeng
,
LEI Mingcheng
,
DING Bosong
,
WANG You
. Influence of Metal Ion
Complex on ζ Potential
in Shield Muck During Solidification[J]. Tunnel Construction, 2024
, 44(S2)
: 144
-151
.
DOI: 10.3973/j.issn.2096-4498.2024.S2.015
