Permacrete

Permacrete is a human construction material, likely similar to concrete. Some structures built near the edges of the Rubble's far-flung habitats, including Eddie's In The Rock, were constructed by drilling holes into the sides of the habits and then hastily equipping them with permacrete and grating inside.

Trivia

 * Permacrete is also a material in the Star Wars universe.

List of appearances

 * Halo: The Cole Protocol

Related articles

 * Instacrete
 * Polycrete