FIELD: hydraulic engineering, sealing seams. SUBSTANCE: keys are prefabricated in manufacturing asphalt and bitumen mastics. Interim mold-form 5 is used to create preset key profile and size, as well as to take loads in storage, shipping, and installation of the key. Butt form is removed before block installation. Lateral form is removed any time before alternating laying down concrete into adjacent block sections. Heating rods 3 are installed to heat up bitumen mastic 2 in the key when constructing, to get butts monolithic and filling possible concrete voids with the mastic. EFFECT: high reliability. 3 cl, 16 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
RU2814951C1 |
| SEAL OF EXPANSION AND SHRINKAGE JOINTS | 0 |
|
SU1767072A1 |
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| METHOD OF FORMING A KEY IN EXPANSION JOINTS OF CONCRETE HYDRAULIC ENGINEERING STRUCTURE | 0 |
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SU1647070A2 |
| EARTH DAM | 1994 |
|
RU2081239C1 |
| CONCRETE DAM | 1992 |
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| METHOD OF ERECTING A MASSIVE CONCRETE STRUCTURE | 0 |
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SU1654424A1 |
