Abbreviation	Full name
PCE	Polycarboxylate superplasticizer
PEG	Polyethylene glycol
SEM	Scanning electron microscope
P3K	PEG with the molecular weight of 3,000 Da
P30K	PEG with the molecular weight of 30,000 Da
GBS	Glass bead suspension
GB	Glass bead
SP	Superplasticizer
SCC	Self-compacting concrete
UHPC	Ultra-high performance concrete
w/c	Water to cement ratio
CP-AFM	Colloidal probe atomic force microscope
DI water	Deionized water
KCl	Potassium chloride
TOC	Total organic carbon
bwog	By weight of glass beads
Rg	Polymer radius of gyration