Prestressed channel dedicated highway bridge highway bridge pore pressure slurry grouting agent (pressure slurry) SJ-G3.do manufacturers Tel:? After 15,726,257,213 Liu prestressing tendons pore pressure slurry after tensioning anchorage, channels grouting as soon as possible, and should be completed within 48h. This demand for grouting, prestressed pipe pressure slurry superior performance, leading technology in the country. Has good fluidity, no bleeding is not hierarchical, durability, prestressed steel does not rust, strong bond with the concrete, grouting full early strength, high filling micro-expansion within the one-time construction grouting, slurry pipeline dense void properties. Product easy to use, directly into the water can be used, in line with "highway bridge construction technology specification" (JTG / T F50-2011) ﹑ "post-tensioned prestressed concrete beam rail grouting pipes technical conditions" (TB / T3192-2008) and "prestressed pore filling agent" (GB / T25182-2010) standards. ? After prestressed pore pressure slurry major performance items ?? mesh performance test results of water-cement ratio (%) 0.26 0.28 0.27 clotting time (h) the initial setting of the final setting of ≤24 11:30 ≥5 8:30 fluidity ( 25 ℃) (s) of the initial flow of 10 ~ 17 15.2 30min fluidity of 10 ~ 20 16.1 60min fluidity 10-25 17.4 bleeding rate (%) 24h liberal bleeding rate 0 0 3h bleeding rate between the wire 00 pressure bleeding When the water rate (%) 0.22MPa? (bore when vertical height ≤1.8m) ????? ≤2.0 ?????????????? 1.0 0.36MPa? (pore vertical height> 1.8m ) free expansion (%) 3h 0 ~ 2 0.3 24h 0 ~ 3 1.1 fullness qualified qualified compressive strength (MPa) 3d ≥20 53 7d ≥40 67 28d ≥50 76 flexural strength (MPa) 3d ≥5 11.5 7d ≥6 12.6 28d ≥10 14 for non-rusting steel rust no rust? three? prestressed pore pressure slurry main features ??? a good fluidity, high strength, no bleeding, no stratification. ??? 2, durability, no aging, no corrosion of steel, rugged durability. ??? 3, grouting with a full early strength, micro-expansion properties. ??? 4, products with high filling properties, one-time grouting construction, dense slurry pipeline void. ??? 5, prestressing steel does not rust, strong bond with the concrete. ??? 6, easy to use, can be used directly into the water. ? Four? Prestressed pore pressure slurry Scope ??? apply grout, mortar and concrete grouting operations, especially for large-scale highway ﹑ after ordinary highway, railway, bridges, nuclear power plants and other projects tensioned tunnel grouting prestressing. ? Five? Install prestressed pore pressure slurry Cautions returned 1, tendons production, Anchorage, fixtures, etc., prestressing, grouting, etc. should meet the design requirements, and comply with JTG / TF50-2011 "highway bridge construction specifications", TB / T3192-2008 "Passenger Line Precast Prestressed Concrete Beam Interim technical conditions" and GB / T25182-2010 "prestressed pore filling agent" requirement. ??? 2, prestressed pipe pressure slurry mixing grout reference water-cement ratio of 0.26 to 0.28, adding actual mixing water in a blender for 80% to 90%, starting blender, adding all the pressure slurry evenly, while Join stirring. All powder was added slowly with stirring 2min, then with rapid stirring 1min, add the remaining 10% to 20% of the mixing water, stirring was continued for 1min. ??? 3, since the mixing slurry pressed into the bore to complete the duration of not more than 40min. ??? 4, the slurry prior to use and pressure injection process should be continuous stirring, due to the delay caused by the use of slurry flow was reduced, not by increasing the fluidity of extra water. ??? 5, grouting slurry temperature should be maintained between 5 ℃ ~ 30 ℃, otherwise it should take measures to meet the conditions. ??? 6, prestressed pipe pressure slurry, water weighing accuracy, and in strict accordance with water-cement ratio determined, not free to adjust the amount of water. ? Six? Prestressed pore pressure slurry packing and storage ??? 1, the product plus lined plastic woven bag, net weight 40 ± 1kg / bag. ??? 2, stored in a dry and ventilated room. ??? 3, shelf life of six months.