| abstract |
(57) [Summary] [PROBLEMS] To reduce the elution amount of hexavalent chromium, To provide a low hexavalent chromium injection material which is excellent in permeability and reduces elution of hexavalent chromium contained in fine particle cement which is excellent in developing strength. SOLUTION: This is a low hexavalent chromium injecting material containing fine particle cement, fine particle slag, calcium aluminate, and gypsum, and further containing a reducing agent. It has a chromium (VI) injection material. |