Modified sulfur and production method thereof

1. A method of providing a modified sulfur useful in concrete, asphalt concrete, coatings or sealants, comprising:

mixing sulfur and a modifier consisting essentially of an unsaturated fatty acid-based modifier,

introducing the resulting mixture into a reactor and melting the mixture by heating to at least about 120° C. so that the sulfur of the mixture melts to a liquid state,

polymerizing the resulting liquid sulfur/modifier mixture by raising temperature of the mixture over a period of time, gradually such that exothermic reaction with rapidly rising temperature and carbonization does not occur, to a temperature exceeding 160° C., while stirring the mixture, and

terminating the reaction at a time when the resulting modified sulfur at room temperature exhibits spinnability or has a network or honeycomb structure,

the duration of the method being six to 18 hours.

2. A method for producing a concrete composition, comprising producing a modified sulfur by the method of claim 1 , and combining the modified sulfur with an aggregate and a hardening agent.

3. The method of claim 2 , wherein the hardening agent is magnesium oxide or cement.

4. The method of claim 1 , wherein the unsaturated fatty acid-based modifier comprises oleic acid.

5. The method of claim 1 , wherein the modified sulfur produced by the method has a viscosity of 4000 cP to 25,000 cP at room temperature.

6. The method of claim 1 , wherein the temperature is raised prior to terminating the reaction, to about 180° C.