Compositions and methods for waterproofing structures formed from water-penetrable construction materials
AssigneeW. R. Grace & Co.-Conn.
InventorsJames M. Gaidis, Robert A. Wiercinski
Life of this patent
Estimating the term…
Abstract
Method of reducing waterpenetration through civil engineering structures which comprise applying to the structures a waterproofing agent pretreatment composition including SBR latex, SBS latex, natural rubber latex, polybutadiene latex, polychloroprene latex, or combinations thereof and packages including the latex-containing waterproofing agent pretreatment compositions and waterproofing agents, and structures to which have been applied the latex-containing waterproofing agent pretreatment compositions.
Claims21
A pretreated, waterproofed package, comprising:
- a water-penetrable surface contiguous to a building structure;
- a layer disposed over said surface comprising an aqueous waterproofing agent pretreatment composition including SBR latex, SBS latex, natural rubber latex, polybutadiene latex, polychloroprene latex, or a combination thereof;
- and
- a waterproofing laminate disposed over said pretreatment composition layer, said laminate comprising at least one support layer and at least one waterproofing adhesive layer.
A structure having a water-penetrable surface to which has been applied an aqueous waterproofing agent pretreatment including SBR latex, SBS latex, natural rubber latex, polybutadiene latex, polychloroprene latex, or a combination thereof which pretreatment composition includes from 1% to 70% by weight solids and contains less than about 20% asphalt and is effective to produce bonds between the structure and subsequently applied waterproofing agents which are sufficiently strong and enduring to secure the waterproofing agent to the structure essentially for the life of the structure.
A method for waterproofing pretreatment of a surface of a building, bridge, road, tunnel, subterranean basement or other water-penetrable building structures, comprising the steps of:
- providing a water-penetrable surface of a building structure;
- providing a composition comprising an element selected from the group consisting of SBR latex, SBS latex, natural rubber latex, polybutadiene latex, and polychloroprene latex, said composition including from 1% to 70% by weight solids and contains less than about 20% asphalt and is effective to produce bonds between the structure and subsequently applied waterproofing agent which are sufficiently strong and enduring to secure the waterproofing agent to the structure essentially for the life of the;
- pretreating said water-penetrable building structure surface by applying said composition thereto;
- and
- applying a preformed, sheet-like waterproofing laminate comprising at least one support layer and an adhesive waterproofing layer over said pretreated surface.
Dependencies are inferred from the claim text.