Sulfur asphalt in roofing, damp-proofing and water proofing

Patent metadata

Field	Value
Publication number	US-9309441-B2
Application number	US-201314069952-A
Country	US
Kind code	B2
Filing date	Nov 1, 2013
Priority date	Nov 1, 2013
Publication date	Apr 12, 2016
Grant date	Apr 12, 2016

Abstract

A method of waterproofing or damp proofing a protected member having a surface with a sulfur-extended plastomer asphalt binder composition uses a sulfur-extended plastomer asphalt binder composition that includes elemental sulfur, a plastomer and an asphalt binder. The method includes the steps of combining the plastomer with the asphalt binder maintained at a plastomer mixing temperature such that an intermediate asphalt binder mixture forms, and combining elemental sulfur with the intermediate asphalt binder maintained at a sulfur mixing temperature such that the sulfur-extended plastomer asphalt binder composition forms. The method also includes the step of applying the sulfur-extended plastomer asphalt binder composition to the surface of the protected member such that the sulfur-extended plastomer asphalt binder composition contacts, adheres to and forms a layer upon the surface of the protected member. The asphalt binder composition is applied at a temperature no greater than 150° C.

First claim

What is claimed is:

1. A method of waterproofing or damp proofing a protected member having a surface with a sulfur-extended plastomer asphalt binder composition, the method comprising the steps of:
combining a plastomer with an asphalt binder maintained at a plastomer mixing temperature such that an intermediate asphalt binder mixture forms;
combining elemental sulfur with the intermediate asphalt binder maintained at a sulfur mixing temperature such that a final mixed product in the form of the sulfur-extended plastomer asphalt binder composition consisting essentially of 20% elemental sulfur, 5% plastomer and 75% asphalt binder, each by total weight of the sulfur-extended plastomer asphalt binder composition forms;
applying the sulfur-extended plastomer asphalt binder composition at a temperature in a range of from about ambient temperature to no greater than 150° C. to the surface of the protected member such that the sulfur-extended plastomer asphalt binder composition contacts, adheres to and forms a layer upon the surface of the protected member that is operable to prevent water migration through the protected member; and
where the formed layer has a first side in contact with and adhered to the surface of the protected member and a second side that does not contact the surface of the protected member.

2. The method of claim 1 further comprising the step of introducing a second material to the second side of the layer such that the layer adheres with the second material, where the temperature of the layer during introduction is in a range of from about greater than ambient temperature to no greater than 140° C.

3. The method of claim 2 where the second material is selected from the group consisting of roofing tiles, crushed stones, stone aggregates, tar papers, waxed papers, non-flammable fabrics and combinations thereof.

4. The method of claim 1 where the plastomer is a homogeneous sulfur-modified polymer (HSMP).

5. The method of claim 4 where the HSMP is HSMP150.

6. A method of waterproofing or damp proofing a protected member having a surface with a sulfur-extended plastomer asphalt binder composition, the method comprising the steps of:
combining a plastomer with an asphalt binder maintained at a plastomer mixing temperature such that an intermediate asphalt binder mixture forms;
combining elemental sulfur with the intermediate asphalt binder maintained at a sulfur mixing temperature such that a final mixed product in the form of the sulfur-extended plastomer asphalt binder composition consisting essentially of 30% elemental sulfur, 5% plastomer and 65% asphalt binder, each by total weight of the sulfur-extended plastomer asphalt binder composition forms; and
applying the sulfur-extended plastomer asphalt binder composition at a temperature in a range of from about ambient temperature to no greater than 150° C. to the surface of the protected member such that the sulfur-extended plastomer asphalt binder composition contacts, adheres to and forms a layer upon the surface of the protected member that is operable to prevent water migration through the protected member;
and
where the formed layer has a first side in contact with and adhered to the surface of the protected member and a second side that does not contact the surface of the protected member.

Assignees

• Saudi Arabian Oil Co
• Univ King Fahd Pet & Minerals

Inventors

• Al-Mehthel Mohammed
• Al-Abdul Wahhab Hamad I
• Al-Idi Saleh H
• Hussein Ibnelwaleed A

Classifications

• C08L2555/86

  Polymers containing aliphatic hydrocarbons only, e.g. polyethylene, polypropylene or ethylene-propylene-diene copolymers · CPC title

• C08L2555/54

  Sulfur or carbon black · CPC title

• C08L2555/52

  Aggregate, e.g. crushed stone, sand, gravel or cement · CPC title

• C08L2555/50

  Inorganic non-macromolecular ingredients · CPC title

• C08L2555/20

  Mixtures of bitumen and aggregate defined by their production temperatures, e.g. production of asphalt for road or pavement applications · CPC title