  In this paper we explore the different types of singularities that arise in
the $\Lambda$CDM model when dissipative processes are considered, in the
framework of the Eckart's theory. In particular, we study the late-time
behavior of $\Lambda$CDM model with viscous cold dark matter (CDM) and an
early-time viscous radiation domination era with cosmological constant (CC).
The fluids are described by the barotropic equation of state (EoS)
$p=(\gamma-1)\rho$, where $p$ is the equilibrium pressure of the fluid, $\rho$
their energy density, and $\gamma$ is the barotropic index. We explore two
particular cases for the bulk viscosity $\xi$, a constant bulk viscosity
$\xi=\xi_{0}$, and a bulk viscosity proportional to the energy density of the
fluid $\xi=\xi_{0}\rho$. Due to some previous investigations that have explored
to describe the behavior of the universe with a negative CC, we extend our
analysis to this case. We found that future singularities like Big-Rip are
allowed but without having a phantom EoS associated to the DE fluid. Big-Crunch
singularities also appears when a negative CC is present, but also de Sitter
and even Big-Rip types are allowed due to the negative pressure of the
viscosity, which opens the possibility of an accelerated expansion in AdS
cosmologies. We also discuss a very particular solution without Big Bang
singularity that arises in the early-time radiation dominant era of our model
known as Soft-Big Bang.
