1 ADDITIVES FOR IMPROVING THE PROPERTIES OF CEMENT, CONCRETE, MORTAR AND PLASTER, NAMELY THOSE WHICH CONTROL PLASTICIZING, LIQUEFYING, MAKING POROUS, ANTIFREEZING, ACCELERATING AND DECELERATING SETTING, LEVELING, HARDENING, REPAIRING, SEALING, WATER-PROOFING, COATING AND BONDING; ADHESIVE COMPOUNDS FOR INDUSTRY PURPOSES, NAMELY BONDING, INSULATING, POLISHING AND PRESERVING, AND RUST-INHIBITING; SOLVENTS AND THINNERS FOR BUILDING MATERIALS; CHEMICAL CLEANERS FOR STONE, CONCRETE, METAL, MACHINERY, AND EQUIPMENT; CHEMICALS FOR PRESERVING, IMPREGNATING, SEALING, HARDENING AND GLAZING WOOD, MORTAR, CONCRETE AND PIPE FABRIC