1.1 This specification covers materials for use in hydraulic-cement concrete mixtures to be placed by shotcreting. It does not cover mixing, placement, curing, or protection of the concrete placed by shotcreting. 1.2 This specification covers ma This specification covers the materials for use in hydraulic-cement concrete mixtures to be placed by wet-mix and dry-mix shotcreting. It does not however cover mixing, placement, curing, or protection of the concrete placed by shotcreting. The materia