Very good step-by-step to make Papercrete. A mix of about 3 parts paper pulp, 2 parts Portland cement and 1 part perlite. Lighter than hyperturfa and perfect newspaper recycling. Should also be good to make raised beds and retaining walls.
Portland cement is the most common type of cement in general use around the world, used as a basic ingredient of concrete, mortar, stucco, and most non-speciality grout. Portland cement is caustic, so it can cause chemical burns