Fiber restricted expansion mortar as well as dry mixture, wet mixture and preparation method of fiber restricted expansion mortar
A technology of limited expansion and mixing agent, which is applied in the field of wet mixture, preparation, fiber-type limited expansion mortar and its dry mixture, which can solve the problems of poor limited expansion performance and achieve high ultimate elongation and high tensile strength , the effect of rapid development of early strength
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Embodiment 1
[0018] A kind of embodiment 1 of the fiber type limited expansion mortar that is used to repair concrete product crack of the present invention: comprise dry mix and wet mix, the dry mix described in this repair mortar is by anionic surfactant type foaming agent 0.2 part , 4 parts of CSA expansion agent, 1 part of plastic stabilizer, 0.4 parts of polypropylene chopped fiber, 32 parts of early strength sulfoaluminate cement, 5 parts of fly ash, and 40 parts of aggregate for configuration. The wet mixture is prepared by adding 1.1 parts of water reducing agent, 0.2 parts of viscosity adjusting agent, 0.1 part of water retaining agent, and 15 parts of deionized water. When using, unseal the dry mixture cartridge and the wet mixture cartridge, mix and stir for 5 minutes according to the ratio of 1:1, and then finish. The initial setting time of the product of the present invention is 10 minutes, the final setting time is 29 minutes, the strength reaches 22.5MPa in 1 day, the stren...
Embodiment 2
[0032] A kind of embodiment 2 of the fiber-type limited expansion mortar used for repairing cracks in concrete products of the present invention, the difference between this embodiment and embodiment 1 is only that the dry mixture described in the repair mortar foams according to the anionic surfactant type 0.2 parts of agent, 3 parts of CSA expansion agent, 1.9 parts of plastic stabilizer, 0.2 parts of polypropylene chopped fiber, 32 parts of early strength sulfoaluminate cement, 10 parts of fly ash, and 36 parts of aggregate. The wet mixture is prepared by adding 1.4 parts of water reducing agent, 0.2 part of viscosity adjusting agent, 0.1 part of water retaining agent, and 15 parts of deionized water. Unpack the dry mix cartridge and the wet mix cartridge, mix and stir for 5 minutes at a ratio of 1:1, and finish. The initial setting time of the product of the present invention is 8 minutes, the final setting time is 25 minutes, the strength reaches 24.1MPa in 1 day, 34.7MPa...
Embodiment 3
[0033] A kind of embodiment 3 of the fiber-type limited expansion mortar used for repairing cracks in concrete products of the present invention, the difference between this embodiment and embodiment 1 is only: the dry mixture described in the repair mortar foams according to the anionic surfactant type 0.1 parts of agent, 3 parts of CSA expansion agent, 2.6 parts of plastic stabilizer, 0.3 parts of polypropylene chopped fiber, 37 parts of early strength sulfoaluminate cement, 5 parts of fly ash, and 33 parts of aggregate. The wet mixture is prepared by adding 1.5 parts of water reducing agent, 0.4 parts of viscosity adjusting agent, 0.1 part of water retaining agent, and 17 parts of deionized water. Unpack the dry mix cartridge and the wet mix cartridge, mix and stir for 5 minutes at a ratio of 1:1, and finish. The initial setting time of the product of the present invention is 13 minutes, the final setting time is 36 minutes, the strength reaches 24.4MPa in 1 day, 35.3MPa in...
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Abstract
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