Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-temperature-resisting geopolymer based reinforcing and repairing mortar as well as preparation method and application of high-temperature-resisting geopolymer based reinforcing and repairing mortar
The invention discloses high-temperature-resisting geopolymer based reinforcing and repairing mortar as well as a preparation method and application of the high-temperature-resisting geopolymer based reinforcing and repairing mortar. The preparation method comprises the following steps: mixing metakaolin and coal ash solid powder, and chopped fibers; pouring a potassium water glass solution; stirring and adding sand; and stirring the mixture again to obtain a product. The high-temperature-resisting geopolymer based reinforcing and repairing mortar comprises the following components in parts by mass: 100 parts of metakaolin and coal ash solid powder, 90-130 parts of the potassium water glass solution, 300-500 parts of sand and 0-2 parts of chopped fibers; and the solid powder is composed of the following components in percentage by mass: 50%-80% of metakaolin and 20%-50% of coal ash. The material has good mechanical properties at room temperature and high temperature, and has the stronger capability of being bound with common cement mortar, concrete and fiber grids and the like; the room-temperature shrinkage is small and is close to a concrete thermal expansion coefficient; and the reinforcing and repairing mortar has early strength, is not easy to crack, has good heat insulation performance, is environmentally friendly, and is suitable for being used as a concrete structure.
High-temperature-resisting geopolymer based reinforcing and repairing mortar as well as preparation method and application of high-temperature-resisting geopolymer based reinforcing and repairing mortar
The invention discloses high-temperature-resisting geopolymer based reinforcing and repairing mortar as well as a preparation method and application of the high-temperature-resisting geopolymer based reinforcing and repairing mortar. The preparation method comprises the following steps: mixing metakaolin and coal ash solid powder, and chopped fibers; pouring a potassium water glass solution; stirring and adding sand; and stirring the mixture again to obtain a product. The high-temperature-resisting geopolymer based reinforcing and repairing mortar comprises the following components in parts by mass: 100 parts of metakaolin and coal ash solid powder, 90-130 parts of the potassium water glass solution, 300-500 parts of sand and 0-2 parts of chopped fibers; and the solid powder is composed of the following components in percentage by mass: 50%-80% of metakaolin and 20%-50% of coal ash. The material has good mechanical properties at room temperature and high temperature, and has the stronger capability of being bound with common cement mortar, concrete and fiber grids and the like; the room-temperature shrinkage is small and is close to a concrete thermal expansion coefficient; and the reinforcing and repairing mortar has early strength, is not easy to crack, has good heat insulation performance, is environmentally friendly, and is suitable for being used as a concrete structure.
High-temperature-resisting geopolymer based reinforcing and repairing mortar as well as preparation method and application of high-temperature-resisting geopolymer based reinforcing and repairing mortar
ZHANG HAIYAN (Autor:in) / CAO LIANG (Autor:in) / WU BO (Autor:in) / YUAN ZHENSHENG (Autor:in) / QI SHULIANG (Autor:in)
01.04.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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