STRUCTURAL SEWER RELINING SYSTEM CATCHES GUNITE MEN NAPPING

This article describes a new sewer lining technique developed by Alphacrete Construction Linings (UK) Ltd. The ACL system is based on a premixed wet mortar which is sprayed onto mesh reinforcement, the mix leaving the gun at a low velocity. The concrete mortar with a cement/water ratio between 0.30 to 0.35 is pumped at a pressure of around 20 bars. Test tubes taken for the mortar have shown that the mix is well up to strength with results of 55n/sq mm and 57n/sq mm at seven days. The new structural lining has been designed to take up to 48% of the imposed loading on the 2.4M dia brick barrel sewer at the South Kensington site. Figures quoted by ACL range between 50 and 125 pounds sterling per square metre. (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00107859
• Corporate Authors:

  IPC Building and Contract Journals Limited

  Surrey House, 1 Throwley Way
  Sutton, Surrey SM1 4QQ,   England 
• Authors:
  • RIDOUT, G
• Publication Date: 1984-3

Media Info

• Features: Photos;
• Pagination: p. 16-17
• Serial:
  • CONTRACT JOURNAL
  • Volume: 318
  • Issue Number: 5447
  • Publisher: Reed Business Information, Limited
  • ISSN: 0010-7859

Subject/Index Terms

• TRT Terms: Concrete; Construction management; Costs; Drainage; Material reinforcement; Mortar; Pipe; Reinforcing materials; Sewers; Sprayers; Spreading; Strength of materials; Tunnel lining; Wire mesh
• Uncontrolled Terms: Concrete strength; Spraying
• Geographic Terms: United Kingdom
• ITRD Terms: 4755: Concrete; 3666: Construction method; 224: Cost; 2937: Drainage; 3470: Mesh; 4769: Mortar; 3361: Pipe; 3471: Reinforcement (in mater); 3602: Spreading; 5544: Strength (mater); 3385: Tunnel lining; 8119: United Kingdom
• Subject Areas: Construction; Finance; Highways; Hydraulics and Hydrology; I26: Water Run-off - Freeze-thaw;

Filing Info

• Accession Number: 00386604
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Jul 30 1984 12:00AM