ABS	Acrylonitrile–butadiene–styrene
BNT	Bentonite
[P(AA-DEA)]	Poly(acrylic acid-N, N-diethyl acrylamide)
CaB	Calcium bentonites
CCP	Coal combustion product
kCCP	Hydraulic conductivity
ESO	Epoxidized soybean oil
MMT	Montmorillonite
MB	Modified bentonite
OMMT	Organo-montmorillonite
OBnt	Organo-modified bentonite
HS	Hui–Shia laminated model
HT	Halpin–Tsai laminated model
$\chi$	Empirical constant to control the stress transfer between the fillers and matrices
Ec	Modulus of the composites
Em	Modulus of the matrices
Ep	Modulus of the fillers
ϕp	Volume fraction of the fillers in the composites
ηL	Stress-partitioning factor
ξ	Constant depending on the geometry and aspect ratios of the fillers in the composites
l	Length of dispersed fillers in the composites
t	Thickness/depth of dispersed fillers in the composites
σc	Tensile strength of the composites
σm	Tensile strength of the matrices
ψ	Area fraction in the cross section
a	Constant influenced by the particle shape and arrangement in the composites
b	Constant influenced by the particle shape and arrangement in the composites