* Organic compounds are defined as compounds that contain carbon atoms bonded to hydrogen atoms (with some exceptions like carbon dioxide).

* Concrete is primarily composed of cement (which is a mixture of calcium silicates, aluminates, and ferrites), aggregates (sand, gravel, or crushed stone), and water.

* While concrete does contain some trace amounts of organic compounds (like admixtures), the vast majority of its composition is inorganic.

Therefore, concrete is considered an inorganic material.