发明名称 A crash barrier
摘要 A crash barrier consists of a concrete block (10) with a light ballast enclosed in a cover (18). The ballast consists of undergraded light ballast and has internal voids (14). The light ballast concrete block consists of two parts (11, 12), namely, an upper part in the form of a light ballast concrete retainer with a bottom cavity and downward facing apertures and a lower part (12) in the form of a light ballast plate which is joined with and supports the upper part. The preferred light ballast material is light clinker.<IMAGE>
申请公布号 SE444829(B) 申请公布日期 1986.05.12
申请号 SE19840004169 申请日期 1984.08.22
申请人 AB SVENSK LECA;VISKAFORS AB 发明人 B G * HERMANSSON;L O * BERGSTROM
分类号 E01F;E01F15/00 主分类号 E01F
代理机构 代理人
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