Skip to content

Comment on Phoenix tried a reflective coating on black asphalt; noon surface heat fell 12°Fparent

Comments

Not really, there’s a number of different concrete binders available including cement, bitumen (used for asphalt), lime (very old binder), even epoxy.

Concrete is a material that uses any binder with rock aggregate. But in everyday usage people mean to refer to cement concrete.

Asphalt is a specific type of concrete that uses a bituminous binder. So asphalt vs non-asphalt isn’t very helpful because non-asphalt either means nothing at all, or any other concrete that uses a non-bituminous binder, and there are plenty of other options.

Clearly GP was intending comparison to be to cement concrete, rather than say, toothpaste concrete, PVA glue concrete, or a number of other technically valid concretes, but obviously not practical.

AboutSource Built by g1lg1l

Hackerly is an independent reader for Hacker News, built on the public HN API. Not affiliated with Y Combinator.