Modified asphalt coating, mineral granule surface modified asphalt waterproofing sheet material, preparation methods of coating and sheet material and mineral granule heating spreading device

Abstract

The invention discloses a modified asphalt coating, a mineral granule surface modified asphalt waterproofing sheet material, preparation methods of the coating and the sheet material and a mineral granule heating spreading device. The modified asphalt coating comprises the following components, based on a total weight of the modified asphalt coating: 58-65 wt% of asphalt, 2-6 wt% of SBR, 8-14 wt%of SEBS, 3-6 wt% of tackifying resin, and 15-23 wt% of a filler, wherein the sum of weight fractions the components is 100%. According to the coating provided by the invention, a softening agent is not added, the coating does not contain the softening agent, so that the prepared mineral granule surface modified asphalt waterproofing sheet material has better stability, the performance degradationof the waterproof sheet material can be delayed, and adhesion of mineral granules can be improved; the SEBS is added, so that the prepared mineral granule surface modified asphalt waterproofing sheetmaterial has better UV-resistant stability, oxidation resistance and thermal stability, the performance degradation of the waterproof sheet material can be delayed, and the adhesion of the sheet material and the mineral granules can be improved.

Description

technical field

[0001] The invention belongs to the technical field of modified asphalt waterproof coiled material, and more specifically relates to a modified asphalt coating material, a modified asphalt waterproof coiled material on the surface of mineral granules, a preparation method thereof, and a mineral granule heating and spreading device. Background technique

[0002] Asphalt waterproofing membrane refers to a roll material made of asphalt material, tire material and anti-sticking material spread on the surface, also known as linoleum. Commonly used in post-type waterproof layer. Bitumen waterproofing membrane refers to tire membrane and tireless membrane. Any roll-shaped material made of thick paper or glass cloth, asbestos cloth, cotton and linen fabrics and other tire materials impregnated with petroleum asphalt is called tire-shaped roll material; asbestos, rubber powder, etc. are mixed into the asphalt material, and after rolling The resulting roll material i...

Examples

preparation example Construction

[0032] The second aspect of the present invention provides the preparation method of above-mentioned modified asphalt coating material, and this preparation method comprises:

[0033] (1) Grinding and mixing anhydrous asphalt with SBR to obtain a first mixture; then grinding and mixing said first mixture with SEBS to obtain a second mixture, and finally grinding and mixing said second mixture with a tackifying resin to obtain the third mixture;

[0034] (2) Mix the third mixture and the filler uniformly to obtain the coating material.

[0035] According to the present invention, preferably, in step (1), the dehydration method of the anhydrous asphalt is: dehydrating the asphalt above 160°C for 0.5-1.5h;

[0036] Grinding and mixing anhydrous asphalt and SBR at 180-200°C for 0.5-1h to obtain the first mixture; then grinding and mixing the first mixture and SEBS at 180-200°C for 1-1.5h to obtain the second mixture, and finally Grinding and mixing the second mixture with the ta...

Embodiment 1

[0067] (1) Preparation of modified asphalt coating material: in the mixing tank, pour 58wt% asphalt, heat up to 160°C and dehydrate for 1 hour to obtain anhydrous asphalt; then, add 2wt% in the mixing tank SBR, start the colloid mill grinding, control the temperature at 190°C for 1 hour, then add 14wt% SEBS, continue to grind and stir at 190°C for 1 hour, then add 3wt% tackifying resin, continue to grind and stir at 190°C for 0.5 hours; finally, Add the mixed material and 23wt% filler after grinding and mixing with a colloid mill into the mixing tank, and continue to stir at 190°C for 1.5 hours to obtain the modified asphalt coating material.

[0068] (2) Preparation of modified asphalt waterproofing membrane on the surface of mineral granules: long-fiber polyester non-woven fabric is used as the tire base, soaked with pre-impregnated oil, squeezed dry, and then covered with steps on both sides of the impregnated and squeezed tire base. The modified asphalt coating material pr...

Embodiment 2

[0070] (1) Preparation of modified asphalt coating material: In the mixing tank, pour 60wt% asphalt, heat up to 160°C and dehydrate for 1 hour to obtain anhydrous asphalt; then, add 3wt% in the mixing tank SBR, start the colloid mill grinding, control the temperature at 190°C for 0.5 hours, then add 13wt% SEBS, continue to grind and stir at 190°C for 1.5 hours, then add 3wt% tackifying resin, continue to grind and stir at 190°C for 1 hour; finally, Add the mixed material and 21wt% filler after colloid mill grinding and mixing into the mixing tank, and continue to stir at 190°C for 1.5 hours to obtain the modified asphalt coating material.

[0071] (2) Preparation of modified asphalt waterproofing membrane on the surface of mineral granules: long-fiber polyester non-woven fabric is used as the tire base, soaked with pre-impregnated oil, squeezed dry, and then covered with steps on both sides of the impregnated and squeezed tire base. The modified asphalt coating material prepar...

technical field

[0001] The invention belongs to the technical field of modified asphalt waterproof coiled material, and more specifically relates to a modified asphalt coating material, a modified asphalt waterproof coiled material on the surface of mineral granules, a preparation method thereof, and a mineral granule heating and spreading device. Background technique

[0002] Asphalt waterproofing membrane refers to a roll material made of asphalt material, tire material and anti-sticking material spread on the surface, also known as linoleum. Commonly used in post-type waterproof layer. Bitumen waterproofing membrane refers to tire membrane and tireless membrane. Any roll-shaped material made of thick paper or glass cloth, asbestos cloth, cotton and linen fabrics and other tire materials impregnated with petroleum asphalt is called tire-shaped roll material; asbestos, rubber powder, etc. are mixed into the asphalt material, and after rolling The resulting roll material i...

Examples

preparation example Construction

[0032] The second aspect of the present invention provides the preparation method of above-mentioned modified asphalt coating material, and this preparation method comprises:

[0033] (1) Grinding and mixing anhydrous asphalt with SBR to obtain a first mixture; then grinding and mixing said first mixture with SEBS to obtain a second mixture, and finally grinding and mixing said second mixture with a tackifying resin to obtain the third mixture;

[0034] (2) Mix the third mixture and the filler uniformly to obtain the coating material.

[0035] According to the present invention, preferably, in step (1), the dehydration method of the anhydrous asphalt is: dehydrating the asphalt above 160°C for 0.5-1.5h;

[0036] Grinding and mixing anhydrous asphalt and SBR at 180-200°C for 0.5-1h to obtain the first mixture; then grinding and mixing the first mixture and SEBS at 180-200°C for 1-1.5h to obtain the second mixture, and finally Grinding and mixing the second mixture with the ta...

Embodiment 1

[0067] (1) Preparation of modified asphalt coating material: in the mixing tank, pour 58wt% asphalt, heat up to 160°C and dehydrate for 1 hour to obtain anhydrous asphalt; then, add 2wt% in the mixing tank SBR, start the colloid mill grinding, control the temperature at 190°C for 1 hour, then add 14wt% SEBS, continue to grind and stir at 190°C for 1 hour, then add 3wt% tackifying resin, continue to grind and stir at 190°C for 0.5 hours; finally, Add the mixed material and 23wt% filler after grinding and mixing with a colloid mill into the mixing tank, and continue to stir at 190°C for 1.5 hours to obtain the modified asphalt coating material.

[0068] (2) Preparation of modified asphalt waterproofing membrane on the surface of mineral granules: long-fiber polyester non-woven fabric is used as the tire base, soaked with pre-impregnated oil, squeezed dry, and then covered with steps on both sides of the impregnated and squeezed tire base. The modified asphalt coating material pr...

Embodiment 2

[0070] (1) Preparation of modified asphalt coating material: In the mixing tank, pour 60wt% asphalt, heat up to 160°C and dehydrate for 1 hour to obtain anhydrous asphalt; then, add 3wt% in the mixing tank SBR, start the colloid mill grinding, control the temperature at 190°C for 0.5 hours, then add 13wt% SEBS, continue to grind and stir at 190°C for 1.5 hours, then add 3wt% tackifying resin, continue to grind and stir at 190°C for 1 hour; finally, Add the mixed material and 21wt% filler after colloid mill grinding and mixing into the mixing tank, and continue to stir at 190°C for 1.5 hours to obtain the modified asphalt coating material.

[0071] (2) Preparation of modified asphalt waterproofing membrane on the surface of mineral granules: long-fiber polyester non-woven fabric is used as the tire base, soaked with pre-impregnated oil, squeezed dry, and then covered with steps on both sides of the impregnated and squeezed tire base. The modified asphalt coating material prepar...

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