Stackwall is a dry concrete mix proportioned to achieve 28 MPA strength. It builds a wall 22" wide with the primary objective of preventing gas transfer and maintaining efficient ventilation control as inexpensively as possible. It is suitable for retaining walls, erosion control, ventilation control (mines) and fire control (mines). Fabric sacks are used to package Portland Cement, fly ash, or blended aggregates similar to a standard concrete mix.
Specifications are determined by user requirements. The sacks are closed with a non-corrosive tie to form a cylindrical package having an oval cross section. It has a dual construction bag; jute inner bag and plastic outer. No form or fitting is required. There is a plain cotton bag for industrial users only.