If it is short-term, these bricks have nothing to do with sand. Something useful.
If it is not good to pile bricks and sand in the yard for a long time, the first is untidy, which will affect the feng shui atmosphere of the whole house. It is best to keep the house clean and tidy. You can put them in the corner, in an inconspicuous position. Bricks and sand belong to soil, which has certain influence on other household elements.
The specific feng shui needs to be analyzed in combination with the orientation and owner of the whole house. Ensuring a transparent environment is beneficial to people's body and mind.
So I suggest you tidy up the yard.
I hope I can help you, and I hope to adopt it!