CN103627190B - A kind of method solving rubber powder and asphalt performance degradation - Google Patents
A kind of method solving rubber powder and asphalt performance degradation Download PDFInfo
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- CN103627190B CN103627190B CN201310546641.2A CN201310546641A CN103627190B CN 103627190 B CN103627190 B CN 103627190B CN 201310546641 A CN201310546641 A CN 201310546641A CN 103627190 B CN103627190 B CN 103627190B
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Abstract
The invention discloses a kind of method solving rubber powder and asphalt performance degradation, relate to the technical field of compositions of bituminous material.First the underproof rubber powder and asphalt of index after decay is heated to 180 DEG C ~ 190 DEG C, under agitation add rubber powder and B-450 efficient activator, then first time grinding is carried out with colloidal mill, enter another colloidal mill again and carry out second time grinding, it is 0.1-0.3 millimeter that second time is ground to rubber powder median size; Finally stir 1 ~ 2h, obtain qualified rubber powder and asphalt; In whole process, temperature controls at 180 DEG C ~ 190 DEG C; Percent mass proportioning is: rubber powder 10% ~ 15%, B-450 efficient activator 0.3%, and after decay, the underproof rubber powder and asphalt of index is surplus.The present invention's rubber powder and asphalt indices off quality after can making performance degradation meets quality standard again, and method is easy, cost-saving, can ensure the quality of products and reach requirement of building the road.
Description
Technical field
The present invention relates to the technical field of compositions of bituminous material.
Background technology
Rubber powder and asphalt (AsphaltRubber) joins in the middle of pitch by certain production technique by rubber powder, and being formed a kind of take rubber powder as the modifying asphalt of properties-correcting agent, is used for improving the related performance indicators of pitch.According to the definition of U.S. ASTM6144-97 standard, rubber powder content is not less than 15%, and fully must react with pitch under the condition of high temperature more than 180 DEG C.
Impact due to by weather and site construction situation: as situations such as rainy day, snowy day or roadway paving apparatus damages, road construction can not be carried out in time, finished product rubber powder and asphalt depositing through certain hour in stable can, performance index can change, and can not meet requirement of building the road.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method solving rubber powder and asphalt performance degradation, rubber powder and asphalt indices off quality after can making performance degradation by the method meets quality standard again, method is easy, cost-saving, can ensure the quality of products and reach requirement of building the road.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of method solving rubber powder and asphalt performance degradation: first the underproof rubber powder and asphalt of index after decay is heated to 180 DEG C ~ 190 DEG C, under agitation add rubber powder and B-450 efficient activator, then first time grinding is carried out with colloidal mill, enter another colloidal mill again and carry out second time grinding, it is 0.1-0.3 millimeter that second time is ground to rubber powder median size; Finally stir 1 ~ 2h, obtain qualified rubber powder and asphalt; In whole process, temperature controls at 180 DEG C ~ 190 DEG C; Percent mass proportioning is: rubber powder 10% ~ 15%, B-450 efficient activator 0.3%, and after decay, the underproof rubber powder and asphalt of index is surplus.
The order number of rubber powder is less than, be equal to or greater than the order number of rubber powder used in the rear underproof rubber powder and asphalt of index of decay.
Preferably, the order number of rubber powder is equal to or greater than the order number of rubber powder used in the rear underproof rubber powder and asphalt of index of decay.
The underproof rubber powder and asphalt of index after decay reheats and adds rubber powder by the present invention, the performance such as the penetration degree of rubber powder and asphalt, softening temperature height can be improved, rubber powder and asphalt indices off quality after making performance degradation meets quality standard again, reaches requirement of building the road.
Adding of B-450 efficient activator has immersional wetting to rubber powder, is convenient to grinding and the dissolving of rubber powder.
Twice grinding, accelerates grinding rate continuously, improves production efficiency.
The beneficial effect adopting technique scheme to produce is:
(1) the rubber powder and asphalt indices that the inventive method is off quality after can making performance degradation meets quality standard again, cost-saving, avoids the waste of resource, can ensure the quality of products and reach requirement of building the road.
(2) the inventive method is easy, and production cost is low, easy to implement.
(3) after decay, the front penetration degree of penetration ratio decay of the underproof rubber powder and asphalt of index improves≤15%, and before softening temperature specific damping, softening temperature reduces the rubber powder and asphalt of≤10% by again meeting quality standard after the inventive method process, reaches requirement of building the road.
Embodiment
B-450 efficient activator is that Anhui Jinma Rubber Additives Co., Ltd. produces, and market is on sale.
Embodiment 1
First the underproof rubber powder and asphalt of index after decay is heated to 180 DEG C ~ 190 DEG C, under agitation add rubber powder and B-450 efficient activator, then first time grinding is carried out with colloidal mill, enter another colloidal mill again and carry out second time grinding, it is 0.1-0.3 millimeter that second time is ground to rubber powder median size; Finally stir 1h, obtain qualified rubber powder and asphalt; In whole process, temperature controls at 180 DEG C ~ 190 DEG C.
Percent mass proportioning is: rubber powder 15%, B-450 efficient activator 0.3%, and after decay, the underproof rubber powder and asphalt of index is surplus.
The order number of rubber powder used in the underproof rubber powder and asphalt of index after the order number of rubber powder equals to decay.
After decay, the underproof rubber powder and asphalt of index is: penetration degree (25 DEG C, 100g, 5s) after decay: 69, softening temperature (ring and ball method, DEG C): 56; Penetration degree (25 DEG C, 100g, 5s) before decay: 60, softening temperature (ring and ball method, DEG C): 62.
The key technical indexes of the rubber powder and asphalt before above-mentioned decay to meet in table 1 shown in 2 types, but index is defective after decay, not meet in table 1 shown in 2 types, after the inventive method process, after above-mentioned decay, the underproof rubber powder and asphalt indices of index meets quality standard shown in 2 types in table 1 again, reach requirement of building the road, cost-saving, avoid the waste of resource.
Embodiment 2
First the underproof rubber powder and asphalt of index after decay is heated to 180 DEG C ~ 190 DEG C, under agitation add rubber powder and B-450 efficient activator, then first time grinding is carried out with colloidal mill, enter another colloidal mill again and carry out second time grinding, it is 0.1-0.3 millimeter that second time is ground to rubber powder median size; Finally stir 1.5h, obtain qualified rubber powder and asphalt; In whole process, temperature controls at 180 DEG C ~ 190 DEG C.
Percent mass proportioning is: rubber powder 10%, B-450 efficient activator 0.3%, and after decay, the underproof rubber powder and asphalt of index is surplus.
The order number of rubber powder is less than the order number of rubber powder used in the rear underproof rubber powder and asphalt of index of decay.
After decay, the underproof rubber powder and asphalt of index is: penetration degree (25 DEG C, 100g, 5s) after decay: 62, softening temperature (ring and ball method, DEG C): 53; Penetration degree (25 DEG C, 100g, 5s) before decay: 56, softening temperature (ring and ball method, DEG C): 58.
The key technical indexes of the rubber powder and asphalt before above-mentioned decay to meet in table 1 shown in 3 types, but index is defective after decay, not meet in table 1 shown in 3 types, after the inventive method process, after above-mentioned decay, the underproof rubber powder and asphalt indices of index meets quality standard shown in 3 types in table 1 again, reach requirement of building the road, cost-saving, avoid the waste of resource.
Embodiment 3
First the underproof rubber powder and asphalt of index after decay is heated to 180 DEG C ~ 190 DEG C, under agitation add rubber powder and B-450 efficient activator, then first time grinding is carried out with colloidal mill, enter another colloidal mill again and carry out second time grinding, it is 0.1-0.3 millimeter that second time is ground to rubber powder median size; Finally stir 2h, obtain qualified rubber powder and asphalt; In whole process, temperature controls at 180 DEG C ~ 190 DEG C.
Percent mass proportioning is: rubber powder 12%, B-450 efficient activator 0.3%, and after decay, the underproof rubber powder and asphalt of index is surplus.
The order number of rubber powder is greater than the order number of rubber powder used in the rear underproof rubber powder and asphalt of index of decay.
After decay, the underproof rubber powder and asphalt of index is: penetration degree (25 DEG C, 100g, 5s) after decay: 82, softening temperature (ring and ball method, DEG C): 54; Penetration degree (25 DEG C, 100g, 5s) before decay: 78, softening temperature (ring and ball method, DEG C): 56.
The key technical indexes of the rubber powder and asphalt before above-mentioned decay to meet in table 1 shown in 1 type, but index is defective after decay, not meet in table 1 shown in 1 type, after the inventive method process, after above-mentioned decay, the underproof rubber powder and asphalt indices of index meets quality standard shown in 1 type in table 1 again, reach requirement of building the road, cost-saving, avoid the waste of resource.
Claims (3)
1. solve a method for rubber powder and asphalt performance degradation, it is characterized in that:
First the underproof rubber powder and asphalt of index after decay is heated to 180 DEG C ~ 190 DEG C, under agitation add rubber powder and B-450 efficient activator, then first time grinding is carried out with colloidal mill, enter another colloidal mill again and carry out second time grinding, it is 0.1-0.3 millimeter that second time is ground to rubber powder median size; Finally stir 1 ~ 2h, obtain qualified rubber powder and asphalt; In whole process, temperature controls at 180 DEG C ~ 190 DEG C;
Percent mass proportioning is: rubber powder 10% ~ 15%, B-450 efficient activator 0.3%, and after decay, the underproof rubber powder and asphalt of index is surplus.
2. a kind of method solving rubber powder and asphalt performance degradation according to claim 1, is characterized in that the order number of described rubber powder is less than, is equal to or greater than the order number of rubber powder used in the rear underproof rubber powder and asphalt of index of decay.
3. a kind of method solving rubber powder and asphalt performance degradation according to claim 2, is characterized in that the order number of described rubber powder is equal to or greater than the order number of rubber powder used in the rear underproof rubber powder and asphalt of index of decay.
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| CN201310546641.2A CN103627190B (en) | 2013-11-07 | 2013-11-07 | A kind of method solving rubber powder and asphalt performance degradation |
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| CN201310546641.2A CN103627190B (en) | 2013-11-07 | 2013-11-07 | A kind of method solving rubber powder and asphalt performance degradation |
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| CN103627190B true CN103627190B (en) | 2016-03-30 |
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| CN106007490A (en) * | 2016-05-25 | 2016-10-12 | 王壹帆 | Method for processing pavement mixture from unqualified ground tire rubber asphalt |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101113140A (en) * | 2006-07-26 | 2008-01-30 | 宋同银 | Vulcanized rubber regeneration activator and preparation method and uses thereof |
| CN101985521A (en) * | 2010-08-18 | 2011-03-16 | 中國禾森石化控股有限公司 | Rubber compound modified asphalt and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS55108457A (en) * | 1979-02-15 | 1980-08-20 | Toa Doro Kogyo Kk | Particulate asphalt |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101113140A (en) * | 2006-07-26 | 2008-01-30 | 宋同银 | Vulcanized rubber regeneration activator and preparation method and uses thereof |
| CN101985521A (en) * | 2010-08-18 | 2011-03-16 | 中國禾森石化控股有限公司 | Rubber compound modified asphalt and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| "橡胶粉改性沥青加工工艺研究";孙建等;《公路》;20080331(第3期);第168-172页 * |
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Address after: 061100 North Side of Bohai New Area Water Supply Company, Cangzhou City, Hebei Province Patentee after: Hebei Rente Chemical Industry Group Co., Ltd. Address before: 061100 North Side of Bohai New Area Water Supply Company, Cangzhou City, Hebei Province Patentee before: HEBEI LUNTE PETROLEUM CHEMICAL CO., LTD. |
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