Here is a set of concrete bags and a pallet to help you with construction works.
BLEND (Blender, filesize: 15.3 MB), OBJ (OBJ, filesize: 15.3 MB), FBX (Autodesk FBX, filesize: 15.3 MB), GLTF (glTF, filesize: 15.3 MB), ABC (Alembic, filesize: 15.3 MB), DAE (Collada, filesize: 15.3 MB), STL (Stereolithography, filesize: 15.3 MB)