The invention relates to binders for mortar or concrete comprising a mixture consisting of: a) from 40 to 95 wt% of an Fe-comprising glass or Fe-comprising metallurgical slag, wherein the glass or slag comprises more than 30 wt% Fe, expressed as Fe203, b) from 1 to 40 wt% of a calcium comprising additive, wherein the additive comprises more than 30 wt% Ca, expressed as calcium oxide and c) from 0.5 to 20 wt% of an alkali, wherein the sum of the percentages of a) b) and c) in the mixture, calculated on a dry basis, is 100%.
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机译：本发明涉及用于砂浆或混凝土的粘合剂，其包含以下混合物：a）40至95重量％的含铁玻璃或含铁冶金炉渣，其中玻璃或炉渣包含大于30重量％的Fe，以作为Fe 2 O 3，b）1至40 wt％的含钙添加剂，其中该添加剂包含以氧化钙表示的30 wt％以上的Ca和c）0.5至20 wt％的碱，其中以干基计，混合物中a）b）和c）的百分比为100％。
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