Chemical Additives for Concrete and Cement-Namely, Hardening Accelerators for Spraying Cement

Roof Plates, Wall Plates, and Guard Plates for Protecting Foundations from Soil Effects, Made Primarily of Bituminized Pulpboard; Building Paneling Made of Wood, Synthetics, and Cement Bonded Fibrous Materials; and Quick Mounting Cement and Spackling Compound for Building Construction