PURPOSE: To expand slag applications by incorporating molten slag with specified weight ratio, on a B2O3 basis, of a sintered product or vitrification product each with boron as the active component.
CONSTITUTION: First, a sintered product or vitrification product is prepared by treatment on heating of heat-treated substance with boron as the active component, such as alkali metal borates, alkali metal borosilicates, alkaline earth metal borates and alkaline earth metal borosilicates. During the above process, the granular size is so regulated as to range from 0.1W5mm and from 1W30mm for the sintered product and vitrification product, respectively. Thence, ≥0.15wt.%, on a B2O3 basis, or this product is added to molten slag, resulting in ready dissolution and diffusion into the slag because of low melting point of said product, also leading to prevention of slag dusting and the production of yellow turbid water. Thus, slag applications will expand to various materials of construction or cement materials.
FUKUOKA HIROSHI
HISAMATSU KUNIO
KATAMURA SHIN
FUKUZAWA TAKASHI
TAKEUCHI KOSUKE
TABATA TATSUSHI
| JPS5343690A | 1978-04-19 |