Would bricks or roads created from melted sand be stable enough? This is something I've thought about as well. There are parts of the world that have lots of

Would bricks or roads created from melted sand be stable enough? This is something I've thought about as well. There are parts of the world that have lots of sunlight and lots of sand. Imagine being able to 3D print roads and buildings out of melted sand. I think the idea has some merit that needs further exploration.