Expansion joints of non-metallic materials for use in floor and wall construction; Non-metallic railroad ties for use in building; Floors, not of metal; Concrete floors; Concrete walls; Readymix concrete; Sands used in preparing concrete; Concrete building materials, namely, slabs; cementitious wall and floor coatings for building purposes; Mortar for building; Cement mortar mix; Mortar mix; Non-metal casting forms for concrete; Rapid hardening plaster for building purposes