FIELD: machine building.
SUBSTANCE: ballast material for under water mains contains cement, filler, plasticiser and water. As cement there is used sulphate resistant Portland cement; as a plasticiser there is used poly-carbonate PCE, and as filler there is used barite industrial product, barite ore and iron-manganese concentrate. Material has the following ratio of components, wt %: Portland cement - 8.2-10.5, water - 5.2-6.7, plasticiser - 0.1-0.15, barite industrial product - 18-28 with density 3.78-3.82 kg/cm3 and humidity 0.9-2.1 %, barite ore - 18-28 with density 3.9-4.1 kg/cm3 and humidity 2 %, and iron-manganese concentrate - 25-45 with density 4.2-4.5 kg/cm3 and humidity 4 %. Ratio of water to Portland cement is 035-0.5. Components of filler have the following granulo-metric composition: 0-0.16 cm - to 5 %, 0.16-1.0 cm - to 25 %, 1.0-2.5 cm - to 35 % and 2.5-5.0 cm - the rest.
EFFECT: reduced external diametre of pipes with ballast coating.
2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| BALLAST MATERIAL OF HIGHER DENSITY FOR UNDERWATER MANIFOLD PIPELINES | 2011 |
|
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| METHOD TO MANUFACTURE PROTECTIVE WEIGHTING CONCRETE COATING OF PIPELINE | 2013 |
|
RU2546699C2 |
| BALLAST MATERIAL | 2008 |
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| METHOD TO APPLY BALLAST MATERIAL ONTO SURFACE OF PIPE FOR UNDERWATER PIPELINE | 2008 |
|
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| PROCEDURE FOR PREPARING BALLAST MATERIAL FOR UNDERWATER PIPELINE | 2009 |
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| COMPOSITE HEAT INSULATION-BALLAST MATERIAL BASED ON WOOD WASTES | 2014 |
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| PROCEDURE FOR MANUFACTURE OF SULPHATE RESISTANT HEAVY-WEIGHT PIPE | 2010 |
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| COMPLEX ADDITIVE FOR CONCRETE MIXTURES AND MORTARS | 2013 |
|
RU2532816C1 |
| METHOD TO PREPARE CONCRETE MIXTURE TO MANUFACTURE BALLAST PIPE AND DEVICE FOR PREVIOUS PREPARATION OF CONCRETE MIXTURE TEMPERING WATER | 2010 |
|
RU2453515C1 |
| CONCRETE MIX FOR PRODUCTION OF HEAVY CONCRETE | 2008 |
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RU2378213C1 |
