| 摘要 |
The invention relates to the field of civil engineering, namely to the building material industry. The building block contains a concrete casing and placed therein a core of foamed concrete with the density of 300...700 kg/m3. The casing is made of macroporous concrete on base of lightweight aggregates, in the following component ratio (mass parts): binding agent 1, fine aggregate 1...4, coarse aggregate 7...14, water 1...2,5.
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