Block Starter

Source

I found this recipe on Barry J. Fuller's "Living In Paper" website:

Recipe

A typical starting formula for a 200-gallon batch is

• 160 gallons (727 liters) of water,
• 60 pounds (27 kilograms) of paper,
• 1 bag or 94 pounds (43 kilograms) of Portland cement and
• 15 shovelfuls or 65 pounds (29 kilograms) of sand.

Comments

The sand adds thermal mass, reduces flammability and shrinkage, and packs down the slurry for a denser, stronger block.