Concrete Materials
This article is timeless and should be accurate for any version of the game.
| “ | A concrete compound that is used to build heavily fortified structures. | „ |
| — In-game description |
Concrete Materials (also known as Concrete) is a Large Material used to build concrete structures. Its most distinctive feature is the horizontal black bar on the burlap sack.
Acquisition
| Structure | Input(s) | Output | Time |
|---|---|---|---|
| Coal Refinery (Coal Liquefier) | 300 x Coal  50L x Water  6 MW of power  |
1 x Concrete Materials  10 x Sulfur  50L x Oil  |
00:04:30 |
| Coal Refinery (Advanced Coal Liquefier) | 300 x Coal 100L x Water 6 MW of power |
1 x Concrete Materials 15 x Sulfur 100L x Oil |
00:04:30 |
| Concrete Mixer | 20 x Components  |
1 x Concrete Materials |
00:00:20 |
Use
Concrete Materials are the building material needed to upgrade player-built structures to Tier 3.
Every structure built with Concrete Materials must dry for 24 hours after being built before it can be used. It is vulnerable while wet but is much stronger than non concrete structures afterwards. The vulnerability depends on how wet the concrete is and functons as a damage multiplier. Wet concrete that's just been placed has a x10 damage multiplier compared to dry concrete; effectively making it about as weak as a tier 1 bunker piece. After 8 hours the damage multiplier is roughly x3, and x2 after 12 hours.
The weight of Concrete Materials can be reduced by 25% by wearing an Engineer Uniform.
Storage
Individual Concrete Materials do not stack in inventories but they can be stored in the stockpiles of Bases, Material Pallets, Material Transfer Stations, Rooster - Tumblebox Trailer, and Small Flatbed Cars.
Trivia
- Concrete Materials used to be a regular item (similar to Basic Materials or Refined Materials), allowing players to hold multiple at a time
- With an Engineer Uniform, you could hold up to seven Concrete Materials without getting over-encumbered
- The original icon for Concrete Materials is still used in the Concrete Upgrade for Bunker Bases
- Concrete Materials was reworked in Update 1.52, which made it a Large Material, allowing it to be stored in Material Pallets, increasing the carry capacity per trip from 23 pieces (player with Engineer Uniform + Standard Truck), to 121 pieces (Flatbed Truck with Material Pallet full of Concrete Materials + 1 in the Flatbed's inventory)
Gallery
A Concrete Material being carried on a Colonial soldier's shoulder
A Material Pallet containing Concrete Materials
Multiple Concrete Materials stored in a Small Flatbed Car
A sped up animation of a concrete structure drying
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