Abstract
The health hazard caused by asbestos has become a serious social issue, and the thoroughness in prevention measures of scattering asbestos becomes an important problem. In this paper, it is attempted to develop a procedure that asbestos can be transformed into non-fiber and non-asbestos by means of heating with the agent for removal or encapsulation of asbestos. As a result, asbestos is made to non-fiber and non-asbestos by heating at 700°C for one hour with the calcium-containing agent. Also the sprayed asbestos and the asbestos-containing cement board can be non-fiber and non-asbestos at the same temperature and time period.