Preparation method of spraying concrete with early-stage high performance, high toughness and low rebound rate and matched stirring equipment
The invention relates to the construction field of a concrete spraying step in shield construction, in particular to a preparation method of concrete for spraying with early-stage high performance, high toughness and low rebound rate and matched stirring equipment. The problems that in the prior art...
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Main Authors | , , , , , , , , , , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
27.02.2024
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Subjects | |
Online Access | Get full text |
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Summary: | The invention relates to the construction field of a concrete spraying step in shield construction, in particular to a preparation method of concrete for spraying with early-stage high performance, high toughness and low rebound rate and matched stirring equipment. The problems that in the prior art, concrete is low in early strength, insufficient in toughness and high in rebound rate are solved. The steel fiber reinforced concrete comprises cement, steel fiber, a nanometer material, coarse and fine aggregate, a triisopropanolamine accelerator and water, the materials are prepared according to a certain ratio under a normal temperature condition, the matched stirring time is less than 5 minutes, and ventilation equipment is provided. The invention has the advantages that: by utilizing the characteristics of the triisopropanolamine accelerator, the application of the triisopropanolamine accelerator in the tunnel is realized, meanwhile, the defects caused by the use of the triisopropanolamine accelerator in the |
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Bibliography: | Application Number: CN202311590031 |