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US 5,951,199 AGranted
Pavement material
AssigneeMatsushita Sangyo Corporation
InventorSeigo Matsushita
Life of this patent
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Abstract
There is provided a pavement material comprising an asphalt and several kinds of aggregates, characterized in that: at least one kind of aggregate is a slag obtained by performing slag-formation treatment on garbage incineration residues.
Claims6
A pavement material comprising an asphalt and several kinds of aggregates, wherein
- said at least one kind of said aggregates are recrystallized slag particles obtained by a process comprising the following steps:
- treating garbage incineration residues to produce a slag;
- heating and recrystallizing said slag to form a recrystallized slag;
- cooling said recrystallized slag gradually until a temperature of said recrystallized slag drops to an ambient temperature to produce a cooled slag;
- breaking the cooled slag into slag particles;
- and thereafter
- screening the slag particles to produce recrystallized slag particles of a uniform size.
4 more elements
Dependencies are inferred from the claim text.