After prestressed duct grouting pressure slurry pipeline sealing anchor

Prestressed pipe pressure slurry prestressed pipe pressure prestressed pipe pressure slurry paste manufacturer price prestressed pipe pressure slurry after zhang hole grouting and sealing after tension anchor prestressed anchorage, channel should be grouting as soon as possible, and should be completed within 48 h, otherwise should be taken to avoid the prestressed pipe pressure slurry measures of prestressed reinforcement corrosion. Post-tensioned prestressed channel appropriate USES special pressure slurry or special grouting the seam an agent preparation of slurry grouting. The provisions of article 4. 2 prestressed pipe pressure slurry and beautiful seam an agent should have good compatibility with cement, and shall not contain chlorine salt and nitrite or other have corrosion on prestressed reinforcement effect. Water reducing the seam an agent should use high efficiency water reducing the seam an agent, and should meet the current national standard concrete with the seam an agent ( GB8076） High efficiency water reducing the seam an agent in the requirements of grade a, the water reducing rate should not be less than 20%. The provisions of article 8. 4 water should not contain harmful to the prestressed reinforced or prestressed concrete pipe pressure slurry cement composition, per litre shall not contain more than 350 mg of chloride ions, or any other organic matter, appropriate USES accord with national health standards of clean drinking water. More than 75% of high alkali expansion seam an agent. 0%. A fluid material area should be greater than 350.