BASIC STUDY ON CHARACTERS OF MOLTEN SLAG AND CEMENT PRODUCED WITH ILLEGALLY DUMPED INDUSTRIAL WASTES IN JAPAN | |
| Conference | 30th Our World in Concrete and Structures (OWICs) - 2005 |
| Authors | M Shoya*, Hachinohe Institute of Technology, Japan Y Tsukinaga*, Hachinohe Institute of Technology, Japan M Aba*, Hachinohe Institute of Technology, Japan H Yamamichi*, Hachinohe Institute of Technology, Japan |
| Handle | 100030048 |
| Key Words | Industrial wastes, Molten-slag, Coarse aggregate, Cement, |
| Abstract | In recent years in Japan, the resolutions of problems on illegally dumped wastes have been of major importance. This will be attributed by the increase of illegal dumping of industrial wastes due to the high cost required for the disposal and treatment and also by the difficulty of securing the safe disposing and embedding field. On the other hand, the effective utilization, reuse and the recycling of industrial wastes as resources are now being rigorously studied. In this study, the attempts were made to treat the awfully dumped industrial wastes in the boundary between Aomori and Iwate prefectures and to utilize them suitably and effectively, that is, the trial productions of molten slag for aggregates and of cement utilizing these incinerated wastes ashes. The molten slag was confirmed within the innocuous range in the regulation for the leaching test and the test of content of detrimental substances. In addition, the physical properties such as the water absorption and density of the molten slag satisfied the regulations of JIS for concrete coarse aggregate. The chemical composition of cement produced using the incinerated wastes ashes satisfied the regulations for eco－cement and for normal portland cement except chloride ion content，which may denote the usefulness of molten slag and incinerated ashes for raw materials for construction. |
| Full Text |  100030048 |
| Link to this page | www.cipremier.com/100030048 |
