| 摘要 |
<p>The invention relates to a binder composition for mortars and light concretes, consisting of 60...80% milled tufa, with addition of 10...15% slag, 5...30% cement or cement clinker, 10% plaster and 5...10% argillaceous slate, as granules of 0.5...3 mm, with the chemical composition: 59.7 SiO2, 10.8% Fe2O3, 1.19% CaO, 2.37% MgO, 1.3% Na2O, 3.1% K2O, 20.6% Al2O3, 0.6% TiO2 and 0.30% PC, the percentage being expressed by weight.</p> |
