FIELD: chemistry; obtaining bitumen-rubber compositions.
SUBSTANCE: bitumen-rubber composition consists of the following components with the given percentage mass ratios: bitumen -70-80, powder from vulcanised rubber from used motor car tyres - 15-25 and naphthalene fraction of coal resin - 5-10. The mixture of bitumen and naphthalene fraction of coal resin is heated to 100°C. The powder with particle size of 5-10 mm is then added. The components are mixed in an unsealed container at 200-220°C for 30-60 minutes. The hot mixture is then forced through a draw plate with diameter of 1 mm using a screw device. The obtained composition, which is ready for use, is poured through a metallic net into a container for storage and transportation.
EFFECT: wider assortment of bitumen-rubber compositions with better operational characteristics, simple technology of manufacturing and shortening of the process.
2 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| ROAD CONCRETE MIX | 2008 |
|
RU2374198C1 |
| METHOD OF PROCESSING RUBBER-CONTAINING WASTES | 2009 |
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|
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| BINDER (POLYETHYLENE-TAR BINDER WITH RUBBER CRUMB - PERB-R) FOR ROAD COVERING | 2012 |
|
RU2519214C1 |
| METHOD TO PREPARE RUBBER MODIFIED BITUMEN | 2010 |
|
RU2448134C1 |
| BINDER (POLYETHYLENE-TAR BINDER PETB) FOR ROAD COVERING | 2012 |
|
RU2519207C1 |
