METHOD FOR SELECTIVELY INHIBITING SULFATE-REDUCING BACTERIUM GYPSUM COMPOSITION CAPABLE OF INHIBITING PROLIFERATION OF SULFATE-REDUCING BACTERIUM BY SAID METHOD GYPSUM-TYPE SOLIDIFYING MATERIAL AND GYPSUM-TYPE BUILDING MATERIAL
A method of selectively filtering sulfuric acid reducing bacteria characterized by selectively inhibiting the growth of the sulfuric acid reducing bacteria by coexisting chelated Al in an environment in which sulfuric acid reducing bacteria are present, (B), and the chelated Al (B) is contained in an amount of 0.01 to 20 parts by mass with respect to 100 parts by mass of the calcined gypsum (A).황산 환원균이 존재하는 환경에, 킬레이트화 Al를 병존시킴으로써, 상기 황산 환원균의 증식을 선택적으로 억제하는 것을 특징으로 하는 황산 환원균의 선택적 제균방법, 및, 소석고(A)와, 킬레이트화 Al(B)를 함유하고, 상기 소석고(A) 100질량부에 대해, 상기 킬레이트화 Al(B)를 0.01~20질량부의 범위에서 함유하고 있는 것을 특징으로 하는 석고 조성물.
