JPS645196B2 - - Google Patents
Info
- Publication number
- JPS645196B2 JPS645196B2 JP57117798A JP11779882A JPS645196B2 JP S645196 B2 JPS645196 B2 JP S645196B2 JP 57117798 A JP57117798 A JP 57117798A JP 11779882 A JP11779882 A JP 11779882A JP S645196 B2 JPS645196 B2 JP S645196B2
- Authority
- JP
- Japan
- Prior art keywords
- equipment
- underground
- concrete
- valve
- polymer concrete
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000002986 polymer concrete Substances 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 4
- 239000002689 soil Substances 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 description 14
- 238000005260 corrosion Methods 0.000 description 14
- 230000035882 stress Effects 0.000 description 12
- 238000010276 construction Methods 0.000 description 10
- 125000006850 spacer group Chemical group 0.000 description 10
- 239000004567 concrete Substances 0.000 description 9
- 239000004570 mortar (masonry) Substances 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 230000006355 external stress Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000011388 polymer cement concrete Substances 0.000 description 2
- 239000011433 polymer cement mortar Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
Landscapes
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
- Valve Housings (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57117798A JPS599394A (ja) | 1982-07-08 | 1982-07-08 | 地下埋設配管用機器の保護装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57117798A JPS599394A (ja) | 1982-07-08 | 1982-07-08 | 地下埋設配管用機器の保護装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS599394A JPS599394A (ja) | 1984-01-18 |
| JPS645196B2 true JPS645196B2 (https=) | 1989-01-30 |
Family
ID=14720542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57117798A Granted JPS599394A (ja) | 1982-07-08 | 1982-07-08 | 地下埋設配管用機器の保護装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS599394A (https=) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61116273U (https=) * | 1984-12-28 | 1986-07-22 | ||
| JP2002106749A (ja) * | 2000-10-03 | 2002-04-10 | Supero Seiki Kk | バルブユニット |
-
1982
- 1982-07-08 JP JP57117798A patent/JPS599394A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS599394A (ja) | 1984-01-18 |
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