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A platform for research: civil engineering, architecture and urbanism
Recycled concrete energy-saving thermal-insulating building block and preparation method thereof
The invention relates to a recycled concrete energy-saving thermal-insulating building block and a preparation method thereof. Four rows of through holes are vertically formed in the building block, two through holes are formed in each of the first row and the fourth row, three through holes are formed in each of the second row and the third row, and the end part of one through hole in each of the second row and the third row is not sealed, so that the end ribs of building blocks are not continuous, the continuous heat transfer among the end ribs is blocked, and the cold-hot bridge effect is reduced; a bottom-sealed structure is adopted at the bottom of the building block, so that the air circulation among through holes of upper and lower building blocks of a wall body is prevented, the grouting and cementation of the building block during vertical construction are enhanced, and the construction strength and shearing strength of the building block are enhanced. The energy-saving thermal-insulating building block consists of recycled aggregate, coal cinders, glass beads, an air entraining agent, cement, coal ash, slag, polypropylene fiber, a water reducing agent and water; the glass beads are added into a building block base body, so that the heat resistance of the building block base body is improved, and the heat transfer of temperature difference between inside and outside of the wall body among building block base bodies is reduced. The building block provided by the invention has the characteristics of being high in mechanical strength and excellent in heat insulation, saves energy, utilizes wastes, is simple in manufacturing method, and is suitable for industrial production.
Recycled concrete energy-saving thermal-insulating building block and preparation method thereof
The invention relates to a recycled concrete energy-saving thermal-insulating building block and a preparation method thereof. Four rows of through holes are vertically formed in the building block, two through holes are formed in each of the first row and the fourth row, three through holes are formed in each of the second row and the third row, and the end part of one through hole in each of the second row and the third row is not sealed, so that the end ribs of building blocks are not continuous, the continuous heat transfer among the end ribs is blocked, and the cold-hot bridge effect is reduced; a bottom-sealed structure is adopted at the bottom of the building block, so that the air circulation among through holes of upper and lower building blocks of a wall body is prevented, the grouting and cementation of the building block during vertical construction are enhanced, and the construction strength and shearing strength of the building block are enhanced. The energy-saving thermal-insulating building block consists of recycled aggregate, coal cinders, glass beads, an air entraining agent, cement, coal ash, slag, polypropylene fiber, a water reducing agent and water; the glass beads are added into a building block base body, so that the heat resistance of the building block base body is improved, and the heat transfer of temperature difference between inside and outside of the wall body among building block base bodies is reduced. The building block provided by the invention has the characteristics of being high in mechanical strength and excellent in heat insulation, saves energy, utilizes wastes, is simple in manufacturing method, and is suitable for industrial production.
Recycled concrete energy-saving thermal-insulating building block and preparation method thereof
ZHU PINGHUA (author) / CHEN CHUNHONG (author) / WANG XINJIE (author) / XIE JINGJING (author)
2015-09-23
Patent
Electronic Resource
English
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