| 摘要 |
PROBLEM TO BE SOLVED: To provide a block which is suitable for greening and heat-insulating a roof or a roof floor of a building, light in weight, excellent in heat insulating property, capable of growing plants by the block per se, and capable of greening every kind of concrete surface, and to provide a method for producing the block. SOLUTION: The block is produced by burning a mixture containing glass powder and a foaming agent to obtain a foamed body, and mixing thereinto an adhesive material, followed by molding the resultant mixture. The block has a foamed body portion exposed on an upper surface thereof, and has a single or a plurality of recesses formed in the upper surface. On the other hand, if an air layer is formed at an intermediate portion of a block having air layer forming legs to obtain a block of a double-layer structure, the heat insulating property of the block is improved. Then, greening plants such as turfs are planted on the upper surfaces of the blocks.
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