diff --git a/TileCalorimeter/TileTrackingGeometry/src/TileVolumeBuilder.cxx b/TileCalorimeter/TileTrackingGeometry/src/TileVolumeBuilder.cxx
index 6c571e9e7004c794b5ab89676187ee44c8ef78a8..ca6732cc16d8bfbd893ecdf86c5104ec51e553fb 100755
--- a/TileCalorimeter/TileTrackingGeometry/src/TileVolumeBuilder.cxx
+++ b/TileCalorimeter/TileTrackingGeometry/src/TileVolumeBuilder.cxx
@@ -199,23 +199,23 @@ const std::vector<const Trk::TrackingVolume*>* Tile::TileVolumeBuilder::tracking
   ATH_MSG_DEBUG( "Retrieved " << numTreeTops << " tree tops from the TileDetDescrManager. " );
 
   // layer material can be adjusted here
-  std::vector<const Trk::IdentifiedMaterial*> matTB; 
+  std::vector<Trk::IdentifiedMaterial> matTB; 
   int baseID = Trk::GeometrySignature(Trk::Calo)*1000 + 12;
-  matTB.push_back(new std::pair<const Trk::Material*,int>(barrelProperties,0));
-  matTB.push_back(new std::pair<const Trk::Material*,int>(barrelProperties,baseID));
-  matTB.push_back(new std::pair<const Trk::Material*,int>(barrelProperties,baseID+1));
-  matTB.push_back(new std::pair<const Trk::Material*,int>(barrelProperties,baseID+2));
+  matTB.emplace_back(barrelProperties,0);
+  matTB.emplace_back(barrelProperties,baseID);
+  matTB.emplace_back(barrelProperties,baseID+1);
+  matTB.emplace_back(barrelProperties,baseID+2);
   
   // material index 
   std::vector<size_t> ltb{0,1,2,3};
   
   // layer material can be adjusted here
-  std::vector<const Trk::IdentifiedMaterial*> matETB; 
+  std::vector<Trk::IdentifiedMaterial> matETB; 
   baseID = Trk::GeometrySignature(Trk::Calo)*1000 + 18;
-  matETB.push_back(new std::pair<const Trk::Material*,int>(extendedBarrelProperties,0));
-  matETB.push_back(new std::pair<const Trk::Material*,int>(extendedBarrelProperties,baseID));
-  matETB.push_back(new std::pair<const Trk::Material*,int>(extendedBarrelProperties,baseID+1));
-  matETB.push_back(new std::pair<const Trk::Material*,int>(extendedBarrelProperties,baseID+2));
+  matETB.emplace_back(extendedBarrelProperties,0);
+  matETB.emplace_back(extendedBarrelProperties,baseID);
+  matETB.emplace_back(extendedBarrelProperties,baseID+1);
+  matETB.emplace_back(extendedBarrelProperties,baseID+2);
 
   // layer material can be adjusted here
   //Trk::MaterialProperties barrelFingerGapProperties = Trk::MaterialProperties(1., 130./0.35, 0.003*pow(0.35,3),30.);
@@ -438,12 +438,12 @@ const std::vector<const Trk::TrackingVolume*>* Tile::TileVolumeBuilder::tracking
   double tileExtZ = tilePositiveExtendedBarrel->center().z()-tilePositiveExtendedBarrelBounds.halflengthZ();
 
   // binned material for ITC : 
-  std::vector<const Trk::IdentifiedMaterial*> matITC;
+  std::vector<Trk::IdentifiedMaterial> matITC;
   // layer material can be adjusted here
   baseID = Trk::GeometrySignature(Trk::Calo)*1000;
-  matITC.push_back(new Trk::IdentifiedMaterial(barrelProperties,baseID+15));
-  matITC.push_back(new Trk::IdentifiedMaterial(barrelProperties,baseID+16));
-  matITC.push_back(new Trk::IdentifiedMaterial(barrelProperties,baseID+17));
+  matITC.emplace_back(barrelProperties,baseID+15);
+  matITC.emplace_back(barrelProperties,baseID+16);
+  matITC.emplace_back(barrelProperties,baseID+17);
 
   // ITCPlug1
   double p1Z = 0.5*(plug1Z-plug1hZ+tileExtZ);