FIELD: machine building.
SUBSTANCE: procedure for manufacture of sulphate resistant heavy-weight pipe consists in covering central pipe with concrete coating. Concrete mixture with fluidity 4-8 cm by Cone of Abrams, made of sulphate resistant Portland cement m500, water, super-plasticiser, water repellent agent and barite or ore, is applied by spraying. Also, first there is sprayed the first layer of thickness a, further there is wound a reinforcing fibreglass net and the second layer is sprayed consisting of concrete mixture of thickness (0.5-1.5)a with shear between a zone of winding and zone of spraying at 1-3 m. Further, the pipe is left on a rack, till concrete mixture stiffens. A pipe is conditioned in a storage for not less, than three days to facilitate storage strength.
EFFECT: simplified manufacture and increased service life of manufactured pipe.
3 cl, 4 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| BALLAST MATERIAL OF HIGHER DENSITY FOR UNDERWATER MANIFOLD PIPELINES | 2011 |
|
RU2455553C1 |
| PIPE WITH THERMAL INSULATION COATING WITH EXTERNAL WEIGHTING CONCRETE COATING | 2020 |
|
RU2757520C2 |
| BALLAST MATERIAL FOR UNDER WATER MAINS | 2010 |
|
RU2437020C1 |
| CEMENT-SAND MORTAR | 2016 |
|
RU2630328C1 |
| FIBERGLASS FOR APPLYING PROTECTIVE FIBERGLASS COATING ON PIPE, METHOD OF APPLYING PROTECTIVE GLASS FIBRE COATING, DEVICE FOR APPLYING PROTECTIVE GLASS FIBRE COATING AND PIPE WITH PROTECTIVE GLASS FIBRE COATING | 2019 |
|
RU2725381C1 |
| METHOD TO PREPARE CONCRETE MIXTURE TO MANUFACTURE BALLAST PIPE AND DEVICE FOR PREVIOUS PREPARATION OF CONCRETE MIXTURE TEMPERING WATER | 2010 |
|
RU2453515C1 |
| WATERPROOFING CREATION METHOD | 2015 |
|
RU2609511C1 |
| METHOD TO MANUFACTURE PROTECTIVE WEIGHTING CONCRETE COATING OF PIPELINE | 2013 |
|
RU2546699C2 |
| METHOD TO APPLY BALLAST MATERIAL ONTO SURFACE OF PIPE FOR UNDERWATER PIPELINE | 2008 |
|
RU2413117C2 |
| BALLAST MATERIAL | 2008 |
|
RU2399828C2 |
