Pipe pressure slurry

Channel Pressure Slurry
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Text 1. Product Introduction
Text. Channel Pressure Slurry is made of a variety of inorganic and organic materials and has better fluidity than ordinary cement slurry. It has the characteristics of small water rate, early strength, micro expansion, full grouting and can be grouted in one time. The slurry in the tunnel is dense and non-porous. The prestressed tendons will not rust and are firmly bonded with the concrete to form a whole.
Text 2. Application scope
Text.-d:-. Grouting construction of post-tensioned prestressed tunnels.
Text.-d:-. Grouting of rapid reinforcement equipment foundation, anchor rods, road studs and other components of the roadbed.
Text 3. Product performance
Text. , Excellent fluidity.
Text. , Micro expansion performance.
Text. , The compressive strength is greater than the compressive strength of the high strength.
Text., no bleeding and excellent slurry stability.
Text. , Protect prestressed steel bars from corrosion.
Text. , easy to use, high quality and environmentally friendly.
Text 4. Main technical indicators
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d.. . . . Text .-r :.%:#.r Specified value
d.. . . . Text.-r :.%:#.r Water to material ratio
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:#.r left and right
d.. . . . Text.-r :.%:#.r Fluidity
d.. . . . Text.-r :.%:#.r Greater than
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d.. . . . Text.-r :.%:#.r Bleeding water Rate
d.. . . . Text.-r :.%:#.r Less than %
d.. . . . Text.-r :.%:#.r Limit expansion rate
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d.. . . . Text.-r :.%:#.r Compressive strength
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d.. . . . Text.-r :.%:#. r Corrosion resistance
d.. . . . Text.-r :.%:#.r No corrosion effect on steel bars
d.. . . . Text.-r :.%:#. r Bonding force between slurry and steel strand
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Text 5. Usage method
Text Prestressed steel bar tensioning The back tunnel should be grouted as soon as possible (generally not more than 10 days).
Text Before grouting, the pores must be flushed clean and moistened, and any accumulated water should be removed with a hair dryer. During grouting, the curved channels and vertical channels should be pressed from the grouting hole at the lowest point to the exhaust hole at the highest point for exhaust and bleeding.
Text The duration of the slurry from preparation to pouring into the tunnel depends on the temperature and generally should not exceed -. The grout should be stirred frequently before use and during grouting.
Text Grouting should use a piston type slurry pump and compressed air should not be used. The maximum pressure of grouting should generally be
Text During the grouting process and within hours after grouting, the temperature of the structural concrete should not be lower than ℃, otherwise thermal insulation measures should be taken. Cooling measures should be taken when the temperature is higher than ℃.
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Text 6. Packaging and storage
Text. The tunnel grouting agent (material) is packaged in moisture-proof bags. The net weight product should be stored in a dry place away from moisture. The shelf life is six months.
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