• 专利标题:   Mortar lining material useful for ductile cast iron pipe lining for sewage, comprises high aluminum cement, granulated blast furnace slag micro powder, silicon ash, sand, water reducing agent, retarder, graphene oxide, and water.
  • 专利号:   CN115893960-A
  • 发明人:   WANG Y, MA Z, ZHAO H, WANG J
  • 专利权人:   XINXING PIPES CO LTD
  • 国际专利分类:   B05D001/00, B05D007/22, B05D007/24, C04B111/20, C04B111/56, C04B028/06, C04B040/02, F16L058/06
  • 专利详细信息:   CN115893960-A 04 Apr 2023 C04B-028/06 202337 Chinese
  • 申请详细信息:   CN115893960-A CN11368029 03 Nov 2022
  • 优先权号:   CN11368029

▎ 摘  要

NOVELTY - Mortar lining material comprises 60-90 pts. wt. high aluminum cement, 10-30 pts. wt. granulated blast furnace slag micro powder, 5-10 pts. wt. silicon ash, 100-300 pts. wt. sand, 0.1-0.2 pts. wt. water reducing agent, 0.01-0.02 pts. wt. retarder, 0.01-0.05 pts. wt. graphene oxide and 30-50 pts. wt. water. The water reducing agent is naphthalene water reducing agent or polycarboxylic acid water reducing agent. The retarder is citric acid or tartaric acid. USE - The mortar lining material is useful for ductile cast iron pipe lining for sewage (claimed). ADVANTAGE - The mortar lining material: has high density, post strength reduction, good corrosion resistance, low manufacturing cost, cement mortar lining reaches to 6.5 MPa after 90 days, porosity is 8.7% and cracking ratio is 18%; and provides anti-corrosion lining having high strength, wear resistance, strong acid resistance, and capable of inhibiting microbial growth. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: ductile cast iron pipe lining for sewage; and manufacturing the ductile cast iron pipe lining.