Concrete Bollard Destroyed 02
A composite material composed of sand, stone, and cement. This block can not be upgraded and is likely only found in the creative menu.
Harvest drops
Small Stone× 25
Taken apart with a harvesting tool (axe, pickaxe, shovel), before perks and tool bonuses.
When it collapses
Falling, it leaves 
Destroyed Stone (75% of the time) where it lands.
Where to find (16 POIs)
Higashi Pharmaceutical (tier 5), Pop-N-Pills Factory (tier 5), U.S. Army Post #7 (tier 5), Hotel Zombona (tier 4), Crack-A-Cafe (tier 3), Pop-N-Pills (tier 3), Savage Country (tier 3), Super Savage Country (tier 3), The Road Gentleman Truck Stop (tier 3), Vick Garrison's Pedipawn (tier 3), Crack-A-Book (tier 2), Pass-N-Gas Store #09 (tier 1), Civic Square, Crumblemoor Catacombs, Pop-N-Pills Urgent Care, Wasted Office Suites.
Points of interest built with this block (any of its variants), the highest tiers first, from the game's prefab files.