Now for the forground objects. The Cinder Block material (Cinder-Blocks.jpg), an almost identical version of the Factor Roof material is used. The difference is that the diffuse color is 50% mixed with the map used on the ground to help age and blend the very porous concrete that supposedly has been sitting half buried for some time.
The Re-Bar material (ReBar.jpg) is a very basic metal. Its using the Multi-Layer shader with a Diffuse Level of 40. Also, very rusty maps are used in the Diffuse color. A Specular Color map breaks up the highlight and a Bump map finishes it off. Also as a note, these are using a Displacement map to help give them shape. For VRay this can be done with an additional modifier, but with some renderers this will need to be in the Material as well.
The Rusty Metal material (Rusty-Metal.jpg) is very similar to the Factory Columns material. Some basic rusty maps blended together with a Bump. This Material is using the raytraced map in the Reflection slot as it is closer to the camera.
Finally, the Shell Casing material (Shell-Casing.jpg). This is a copy of the Satellite Dish material with some altered diffuse maps for color. As with the Satellite Dish material this material is meant to play off the light
That is the extent of this tutorial. I hope you have learned something useful as you read through this. Thanks for your time.