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ADMIXTURE AND CEMENTITIOUS MATERIAL FOR HEAVYWEIGHT GROUTING MORTAR AND HEAVYWEIGHT GROUTING MORTAR
ADMIXTURE AND CEMENTITIOUS MATERIAL FOR HEAVYWEIGHT GROUTING MORTAR AND HEAVYWEIGHT GROUTING MORTAR
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机译：重质水泥砂浆的掺合料和水泥质材料
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摘要
PROBLEM TO BE SOLVED: To provide heavyweight grouting mortar the fresh mortar of which has excellent flowability and in the fresh mortar of which no segregation and no bleeding are caused and the hardened mortar of which ha s high unit weight in dry condition and high dimensional stability and is capable of expressing good strength. ;SOLUTION: This admixture used for the heavyweight grouting mortar contains a pozzolanic fine powder having a 0.6-2.0% carbon content and further, an expansive admixture and/or a water reducing agent. This cementitious material used for the heavyweight grouting mortar consists of cement and the above admixture. This heavyweight grouting mortar is produced by mixing 100 parts of the cementitious material with 500-1,000 parts of heavyweight aggregate. Hardened mortar of the heavyweight grouting mortar has a ≥3.30 t/m3 unit mass in dry condition and also shows ≥40 N/mm2 compressive strength when the age is 28 days. Fresh mortar of the heavyweight grouting mortar has good physical properties, or more specifically, a 260-320 mm mini-slump-flow value (slump flow value measured with a specific miniaturized slump cone).;COPYRIGHT: (C)2001,JPO
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机译：解决的问题：提供重质灌浆砂浆，其新鲜砂浆具有优异的流动性，并且在新鲜砂浆中不引起偏析和渗出，并且其硬化砂浆在干燥条件下具有较高的单位重量和较高的尺寸稳定性并能够表现出良好的力量。 ;解决方案：用于重型灌浆砂浆的这种混合物包含碳含量为0.6-2.0％的火山灰细粉，以及膨胀剂和/或减水剂。用于重型灌浆砂浆的这种水泥材料由水泥和上述混合物组成。通过将100份胶凝材料与500-1,000份重量级骨料混合，可以生产这种重量级的灌浆砂浆。重型灌浆砂浆的硬化砂浆在干燥条件下的单位质量为3.30 t / m3，并且在使用28天时也显示出40 N / mm2的抗压强度。重质灌浆砂浆的新鲜砂浆具有良好的物理性能，或更具体地说，具有260-320 mm的最小坍落度流量值（坍落度流量值使用特定的微型坍落度圆锥体测量）。;版权：（C）2001，JPO
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