Product Applications This product is suitable for the grout, mortar and concrete grout material, particularly suitable for rail roads, bridges, nuclear power plants and other large construction projects have bonded post-tensioned prestressed concrete pore filling material. Second, the product features a good fluidity, no bleeding, no stratification; 2, grouting full early strength, micro-expansion; three, one-time grouting construction, non-porous dense slurry pipeline; 4, prestressed steel does not rust, strong bond with the concrete; three, performance test based on assay data :(: After TB / T3192-2008 railway tensioned prestressed concrete beam pipe grouting technology conditions) Inspection Item Unit Performance / setting time early condensate h: min ≥4h / Final setting h: min ≤24h / out machine fluidity of 14 to 22 seconds / 30 minutes fluidity seconds ≤30 / liberal bleeding rate (24h)% 0 / capillary bleeding rate (3h, 23 ℃)% ≤0.1 / pressure bleeding rate 0.22MPa% ≤3.5 pore channels vertical height ≤1.8m 0.36MPa vertical height> 1.8m filling degree / qualification / 7 days strength and flexural strength MPa ≥6.5 / compressive strength of ≥35 / 28 days strength flexural strength MPa ≥10 / compressive strength ≥50 / 24h free expansion% 0-3 / corrosion of reinforcement on / no rust / gas content% 1-3 / chloride ion content% / / alkali content% / / Note: PO 42.5R cement for cement, 10% in the content, water-cement ratio of 0.33 IV trial with pre-construction method to determine the optimal ratio of 1. Use the recommended dosage is 10% -12% water-cement ratio of 0.30-0.33. 2. Mixing: generally the most suitable order is stirring: water → → pipe cement grouting agent; as a usual method of mechanical stirring was stirred, then appropriately extended mixing time, to ensure that the grout components dispersed uniformly. 3. Pouring: After stirring pouring soon take the usual placement or pumping methods to ensure continuous pouring. 4. Conservation: pouring over the area if it is exposed, maintenance materials should be used with wet sacks conservation or maintenance.