发明名称 PULVERGEMISCH FUER EINE TENNISPLATZ-DECKSCHICHT UND VERFAHREN ZUM NACHBESSERN DER DECKSCHICHT
摘要 <p>A powder mixture contains 5-25% by weight of binder and 95-75% by weight of comminuted natural rock and a fines fraction below 20 mu m. In this case, it is desirable to reduce the long-term compaction of the top layer. This is achieved if the binder consists of 30-70% by weight of quicklime and 70-30% by weight of pozzolana, the maximum grain size of the binder being 1.6 mm and that of the natural rock being 2 mm, and the fines fraction below 20 mu m amounting to at most 2% by weight. As a result of the selected binder and the set grain size distribution, water permeability is ensured over a prolonged period while maintaining repeatable consolidation by addition of water.</p>
申请公布号 DD287552(A5) 申请公布日期 1991.02.28
申请号 DD19890326785 申请日期 1989.03.21
申请人 OTTO,WERNER,DE 发明人 OTTO,WERNER,DE
分类号 C04B28/22;E01C7/10;E01C13/06;(IPC1-7):E01C13/00;C04B28/02 主分类号 C04B28/22
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