diff --git a/dumux/material/CMakeLists.txt b/dumux/material/CMakeLists.txt
index 8abb0b10aea3fb1bf60a6438a67680a238eff8d9..40cabdc6276a8097cc2daf225261201eebb0e50e 100644
--- a/dumux/material/CMakeLists.txt
+++ b/dumux/material/CMakeLists.txt
@@ -7,6 +7,8 @@ add_subdirectory("fluidmatrixinteractions")
add_subdirectory("fluidstates")
add_subdirectory("fluidsystems")
add_subdirectory("spatialparams")
+add_subdirectory("solidsystems")
+add_subdirectory("solidstates")
#install headers
install(FILES
diff --git a/dumux/material/solidsystems/CMakeLists.txt b/dumux/material/solidsystems/CMakeLists.txt
new file mode 100644
index 0000000000000000000000000000000000000000..211e9cc08a7a188ee71db7da087fb29afbe428cb
--- /dev/null
+++ b/dumux/material/solidsystems/CMakeLists.txt
@@ -0,0 +1,4 @@
+install(FILES
+ inertsolidphase.hh
+ compositionalsolidstate.hh
+DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/dumux/material/solidsystems)
diff --git a/dumux/material/solidsystems/compositionalsolidphase.hh b/dumux/material/solidsystems/compositionalsolidphase.hh
new file mode 100644
index 0000000000000000000000000000000000000000..c8e7b6ba4ad3f96dc393097d1012a17115d02397
--- /dev/null
+++ b/dumux/material/solidsystems/compositionalsolidphase.hh
@@ -0,0 +1,190 @@
+// -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+// vi: set et ts=4 sw=4 sts=4:
+/*****************************************************************************
+ * See the file COPYING for full copying permissions. *
+ * *
+ * This program is free software: you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License as published by *
+ * the Free Software Foundation, either version 2 of the License, or *
+ * (at your option) any later version. *
+ * *
+ * This program is distributed in the hope that it will be useful, *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
+ * GNU General Public License for more details. *
+ * *
+ * You should have received a copy of the GNU General Public License *
+ * along with this program. If not, see <http://www.gnu.org/licenses/>. *
+ *****************************************************************************/
+/*!
+ * \file
+ * \ingroup SolidSystems
+ * \brief @copybrief Dumux::SolidSystems::InertSolidPhase
+ */
+#ifndef DUMUX_SOLIDSYSTEMS_COMPOSITIONAL_SOLID_PHASE_HH
+#define DUMUX_SOLIDSYSTEMS_COMPOSITIONAL_SOLID_PHASE_HH
+
+namespace Dumux {
+namespace SolidSystems {
+
+/*!
+ * \ingroup SolidSystems
+ * \brief A solid phase consisting of a single inert solid component
+ * \note a solid is considered inert if it can't dissolve in a liquid and
+ * and can't increase its mass by precipitation from a fluid phase.
+ */
+template <class Scalar, class Component1, bool isInert1, class Component2, bool isInert2>
+class CompositionalSolidPhase
+{
+public:
+ using ComponentOne = Component1;
+ using ComponentTwo = Component2;
+
+
+ /****************************************
+ * Solid phase related static parameters
+ ****************************************/
+ static constexpr int numComponents = 2;
+ static constexpr int numInertComponents = isInert1 ? (isInert2 ? 2 : 1) : (isInert2 ? 1 : 0);
+ static constexpr int componentOneIdx = 0;
+ static constexpr int componentTwoIdx = 1;
+
+
+ /*!
+ * \brief Return the human readable name of a solid phase
+ *
+ * \param phaseIdx The index of the solid phase to consider
+ */
+ static std::string phaseName(int phaseIdx)
+ {
+ switch (phaseIdx) {
+ case componentOneIdx: return ComponentOne::name();
+ case componentTwoIdx: return ComponentTwo::name();
+ }
+ DUNE_THROW(Dune::InvalidStateException, "Invalid phase index " << phaseIdx);
+ }
+
+ /*!
+ * \brief A human readable name for the component.
+ *
+ * \param compIdx The index of the component to consider
+ */
+ static std::string componentName(int compIdx)
+ {
+ DUNE_THROW(Dune::InvalidStateException, "ComponentName does not exist " << compIdx);
+ }
+
+ /*!
+ * \brief A human readable name for the solid system.
+ */
+ static std::string name()
+ { return "CompositionalSolidPhase"; }
+
+ /*!
+ * \brief Returns whether the phase is incompressible
+ */
+ static constexpr bool isCompressible(int phaseIdx)
+ { return false; }
+
+ /*!
+ * \brief Returns whether the component is inert (doesn't react)
+ */
+ static constexpr bool isInert()
+ {
+ if (numComponents == numInertComponents)
+ return true;
+ else
+ return false;
+ }
+
+ /*!
+ * \brief The molar mass in \f$\mathrm{[kg/mol]}\f$ of the component.
+ */
+ static Scalar molarMass(int phaseIdx)
+ {
+ switch (phaseIdx) {
+ case componentOneIdx: return ComponentOne::molarMass();
+ case componentTwoIdx: return ComponentTwo::molarMass();
+ }
+ DUNE_THROW(Dune::InvalidStateException, "Invalid phase index " << phaseIdx);
+ }
+
+ /*!
+ * \brief The density \f$\mathrm{[kg/m^3]}\f$ of the solid phase at a given pressure and temperature.
+ */
+ template <class SolidState>
+ static Scalar density(const SolidState& solidState)
+ {
+ Scalar rho1 = ComponentOne::solidDensity(solidState.temperature());
+ Scalar rho2 = ComponentTwo::solidDensity(solidState.temperature());
+ Scalar volFrac1 = solidState.volumeFraction(componentOneIdx);
+ Scalar volFrac2 = solidState.volumeFraction(componentTwoIdx);
+
+ return (rho1*volFrac1+
+ rho2*volFrac2)/(volFrac1+volFrac2);
+ }
+
+ /*!
+ * \brief The density \f$\mathrm{[kg/m^3]}\f$ of the solid phase at a given pressure and temperature.
+ */
+ template <class SolidState>
+ static Scalar density(const SolidState& solidState, const int phaseIdx)
+ {
+ switch (phaseIdx)
+ {
+ case componentOneIdx: return ComponentOne::solidDensity(solidState.temperature());
+ case componentTwoIdx: return ComponentTwo::solidDensity(solidState.temperature());
+ }
+ DUNE_THROW(Dune::InvalidStateException, "Invalid phase index " << phaseIdx);
+ }
+
+ /*!
+ * \brief The molar density of the solid phase at a given pressure and temperature.
+ */
+ template <class SolidState>
+ static Scalar molarDensity(const SolidState& solidState, const int phaseIdx)
+ {
+ switch (phaseIdx)
+ {
+ case componentOneIdx: return ComponentOne::solidDensity(solidState.temperature())/ComponentOne::molarMass();
+ case componentTwoIdx: return ComponentTwo::solidDensity(solidState.temperature())/ComponentTwo::molarMass();
+ }
+ DUNE_THROW(Dune::InvalidStateException, "Invalid phase index " << phaseIdx);
+ }
+
+ /*!
+ * \brief Thermal conductivity of the solid \f$\mathrm{[W/(m K)]}\f$.
+ */
+ template <class SolidState>
+ static Scalar thermalConductivity(const SolidState &solidState)
+ {
+ Scalar lambda1 = ComponentOne::solidThermalConductivity(solidState.temperature());
+ Scalar lambda2 = ComponentTwo::solidThermalConductivity(solidState.temperature());
+ Scalar volFrac1 = solidState.volumeFraction(componentOneIdx);
+ Scalar volFrac2 = solidState.volumeFraction(componentTwoIdx);
+
+ return (lambda1*volFrac1+
+ lambda2*volFrac2)/(volFrac1+volFrac2);
+ }
+
+ /*!
+ * \brief Specific isobaric heat capacity of the pure solids \f$\mathrm{[J/(kg K)]}\f$.
+ */
+ template <class SolidState>
+ static Scalar heatCapacity(const SolidState &solidState)
+ {
+ Scalar c1 = ComponentOne::solidHeatCapacity(solidState.temperature());
+ Scalar c2 = ComponentTwo::solidHeatCapacity(solidState.temperature());
+ Scalar volFrac1 = solidState.volumeFraction(componentOneIdx);
+ Scalar volFrac2 = solidState.volumeFraction(componentTwoIdx);
+
+ return (c1*volFrac1+
+ c2*volFrac2)/(volFrac1+volFrac2);
+ }
+
+};
+
+} // end namespace SolidSystems
+} // end namespace Dumux
+
+#endif
diff --git a/dumux/material/solidsystems/inertsolidphase.hh b/dumux/material/solidsystems/inertsolidphase.hh
new file mode 100644
index 0000000000000000000000000000000000000000..e9d96d660ebe626300b49c1e614dbf5e5d32d464
--- /dev/null
+++ b/dumux/material/solidsystems/inertsolidphase.hh
@@ -0,0 +1,140 @@
+// -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+// vi: set et ts=4 sw=4 sts=4:
+/*****************************************************************************
+ * See the file COPYING for full copying permissions. *
+ * *
+ * This program is free software: you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License as published by *
+ * the Free Software Foundation, either version 2 of the License, or *
+ * (at your option) any later version. *
+ * *
+ * This program is distributed in the hope that it will be useful, *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
+ * GNU General Public License for more details. *
+ * *
+ * You should have received a copy of the GNU General Public License *
+ * along with this program. If not, see <http://www.gnu.org/licenses/>. *
+ *****************************************************************************/
+/*!
+ * \file
+ * \ingroup SolidSystems
+ * \brief @copybrief Dumux::SolidSystems::InertSolidPhase
+ */
+#ifndef DUMUX_SOLIDSYSTEMS_INERT_SOLID_PHASE_HH
+#define DUMUX_SOLIDSYSTEMS_INERT_SOLID_PHASE_HH
+
+namespace Dumux {
+namespace SolidSystems {
+
+/*!
+ * \ingroup SolidSystems
+ * \brief A solid phase consisting of a single inert solid component
+ * \note a solid is considered inert if it can't dissolve in a liquid and
+ * and can't increase its mass by precipitation from a fluid phase.
+ */
+template <class Scalar, class ComponentT>
+class InertSolidPhase
+{
+public:
+ using Component = ComponentT;
+
+ /****************************************
+ * Solid phase related static parameters
+ ****************************************/
+ static constexpr int numComponents = 1;
+ static constexpr int numInertComponents = 1;
+
+ enum { lastInertCompIdx = numInertComponents-1 };
+
+ /*!
+ * \brief Return the human readable name of a solid phase
+ *
+ * \param phaseIdx The index of the solid phase to consider
+ */
+ static std::string phaseName(int phaseIdx = 0)
+ { return Component::name(); }
+
+ /*!
+ * \brief A human readable name for the component.
+ *
+ * \param compIdx The index of the component to consider
+ */
+ static std::string componentName(int compIdx = 0)
+ { return Component::name(); }
+
+ /*!
+ * \brief A human readable name for the solid system.
+ */
+ static std::string name()
+ { return Component::name(); }
+
+ /*!
+ * \brief Returns whether the phase is incompressible
+ */
+ static constexpr bool isCompressible(int phaseIdx = 0)
+ { return false; }
+
+ /*!
+ * \brief Returns whether the component is inert (doesn't react)
+ */
+ static constexpr bool isInert()
+ { return true; }
+
+ /*!
+ * \brief The molar mass in \f$\mathrm{[kg/mol]}\f$ of the component.
+ */
+ static Scalar molarMass(int compIdx = 0)
+ { return Component::molarMass(); }
+
+ /*!
+ * \brief The density \f$\mathrm{[kg/m^3]}\f$ of the solid phase at a given pressure and temperature.
+ */
+ static Scalar density(Scalar temperature)
+ { return Component::solidDensity(temperature); }
+
+ /*!
+ * \brief The density \f$\mathrm{[kg/m^3]}\f$ of the solid phase at a given pressure and temperature.
+ */
+ template <class SolidState>
+ static Scalar density(const SolidState& solidState)
+ {
+ return density(solidState.temperature());
+ }
+
+ /*!
+ * \brief Thermal conductivity of the solid \f$\mathrm{[W/(m K)]}\f$.
+ */
+ static Scalar thermalConductivity(Scalar temperature)
+ { return Component::solidThermalConductivity(temperature); }
+
+ /*!
+ * \brief Thermal conductivity of the solid \f$\mathrm{[W/(m K)]}\f$.
+ */
+ template <class SolidState>
+ static Scalar thermalConductivity(const SolidState &solidState)
+ {
+ return thermalConductivity(solidState.temperature());
+ }
+
+ /*!
+ * \brief Specific isobaric heat capacity of the solid \f$\mathrm{[J/(kg K)]}\f$.
+ */
+ static Scalar heatCapacity(Scalar temperature)
+ { return Component::solidHeatCapacity(temperature); }
+
+ /*!
+ * \brief Specific isobaric heat capacity of the solid \f$\mathrm{[J/(kg K)]}\f$.
+ */
+ template <class SolidState>
+ static Scalar heatCapacity(const SolidState &solidState)
+ {
+ return heatCapacity(solidState.temperature());
+ }
+
+};
+
+} // end namespace SolidSystems
+} // end namespace Dumux
+
+#endif