Qual solo posso usar para tijolo ecológico?

Soil containing organic material cannot be used for making ecological bricks. The organic material degrades and leaves "voids" in the brick, causing a loss of strength. Up to 1.5m deep, the soil must be stripped. From there, the soil can be used, but the deeper the soil, the greater the difference in soil composition. Therefore, it is always necessary to periodically perform granulometric analysis of the soil to identify its composition and what corrections are needed.