China Naming Network - Almanac query - We want to build houses collectively here. Which effect is better, construction waste or sand and gravel? What is the difference?

We want to build houses collectively here. Which effect is better, construction waste or sand and gravel? What is the difference?

For construction waste and sand:

If the construction waste is a pure mixture of broken bricks, mortar and concrete blocks, and it is relatively uniform, such construction waste is a good filler with good effect. If it is mixed or uneven with other domestic garbage, it should not be used as a filler. If a house is built, it will cause uneven settlement and cracks in the house.

Gravel is the best filler because of its good performance and uniform stress.