LOW-CARBON NEUTRALIZATION-SUPPRESSION MORTAR COMPOSITION AND METHOD FOR PRODUCING LOW-CARBON NEUTRALIZATION-SUPPRESSION MORTAR HARDENED BODY

PROBLEM TO BE SOLVED: To provide a low-carbon neutralization-suppression mortar composition that suppresses neutralization as well as is excellent in compressive strength.SOLUTION: Provided is a low-carbon neutralization-suppression mortar composition comprising inorganic fine powder, gypsum, fine aggregate and kneading water and in which: the inorganic fine powder is composed of cement and blast furnace slag fine powder and the mass ratio of cement and blast furnace slag fine powder (cement: blast furnace slag) is from 10:90 to 30:70; the amount of gypsum is 6 to 10 pts.mass with respect to 100 pts.mass of the inorganic fine powder; and the kneading water has a pH of 10 to 14 and a Ca ion concentration of 100 to 5000 mg/L. The low-carbon neutralization-suppression mortar composition in which the kneading water has a Na ion concentration of 10 to 500 mg/L and a Ka ion concentration of 10 to 500 mg/L, and furthermore a SOion concentration of 10 to 5000 mg/L and a Cl ion concentration of 1 to 100 mg/L.SELECTED DRAWING: None 【課題】中性化を抑制するとともに圧縮強度に優れる、低炭素中性化抑制モルタル組成物を提供する。【解決手段】無機質微粉末、石膏、細骨材及び練混ぜ水を含み、無機質微粉末はセメントと高炉スラグ微粉末とからなり、セメントと高炉スラグ微粉末の質量比（セメント：高炉スラグ）が１０：９０〜３０：７０であり、石膏の量が無機質微粉末１００質量部に対して６〜１０質量部であり、練混ぜ水のｐＨが１０〜１４及びＣａイオン濃度が１００〜５０００ｍｇ／Ｌである低炭素中性化抑制モルタル組成物。練混ぜ水のＮａイオン濃度が１０〜５００ｍｇ／Ｌ及びＫａイオン濃度が１０〜５００ｍｇ／Ｌであり、更に、ＳＯ４イオン濃度が１０〜５０００ｍｇ／Ｌ及びＣｌイオン濃度が１〜１００ｍｇ／Ｌである、低炭素中性化抑制モルタル組成物。【選択図】なし