CN1511882A - Fiber reinforced emulsified pitch thin paste sealing layer - Google Patents
Fiber reinforced emulsified pitch thin paste sealing layer Download PDFInfo
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- CN1511882A CN1511882A CNA021517649A CN02151764A CN1511882A CN 1511882 A CN1511882 A CN 1511882A CN A021517649 A CNA021517649 A CN A021517649A CN 02151764 A CN02151764 A CN 02151764A CN 1511882 A CN1511882 A CN 1511882A
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- fiber
- addition
- emulsified asphalt
- slurry seal
- road surface
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Abstract
The present invention relates to road constructing material, and is especially emulsified asphalt slurry sealing coating with fiber added. Reinforcing organic acrylic fiber in the amount determined on the road surface condition and normally 0.2-0.8 wt% of the mixture is added and the fiber has fiber length of 4.0-10.0 mm, fineness of 1.5-2.5 decitex and density of 1.18 g/cu cm. The addition of the fiber raises the performances of the slurry sealing coating greatly, including excellent high temperature performance, excellent low temperature cracking performance and improved aggregate-asphalt combining performance, and thus prolongs the service life of road surface and road maintaining period.
Description
Technical field the present invention relates to a kind of pavement construction material, particularly a kind ofly is used for that the road surface is newly-built, the emulsified asphalt slurry seal of reconstruction and old pavement maintenance.
The background technology emulsified asphalt slurry seal at home and abroad is widely used as the main construction material in the road pavement building engineering.Though having, the slurry seal on the common meaning can repair road wear, aging, crack and advantage such as loose rapidly, but in application process, there are defectives such as easy shrinkage cracking, cracking resistance, shock resistance be lower, so after maintenance, expose a lot of shortcomings in the use on road surface.In order to change this present situation, people are by adding the above-mentioned performance that each fibrid improves slurry seal in emulsified asphalt slurry seal.
At present, commonly used fiber can be divided into steel fiber (as steel fiber and Stainless Steel Fibre), inorganic fibre (mainly containing man-made mineral fibers such as natural mineral fiber such as asbestos and alkali resistant glass fiber, alkali resistant mineral wool, carbon fiber) and organic fibre (mainly containing natural plant fibres such as synthon such as polypropylene, nylon, polyethylene, aromatic polyimide and sisal hemp) by its material character in the emulsified asphalt slurry seal.Wherein use more have steel fiber, fibrous magnesium silicate, polypropylene fibre, carbon fiber and glass fibre.
Yet,, can increase the load of slurry seal in the use inevitably because the density of steel fiber is bigger; Carbon fiber has electroconductibility, but production cost is higher, makes its application be subjected to certain limitation; The bullet mould of polypropylene fibre is lower, generally has only 1-8Gpa, and illumination is aging easily in air or oxygen; Glass fibre is because intensity is low, fragility is big, adds the people in emulsified asphalt slurry seal, can lose due tensile strength.
Summary of the invention the invention discloses a kind of simple, reliable fiber reinforcement emulsified asphalt slurry seal blended stock.This compound comprises aggregate, emulsified bitumen, filler, water, additive etc., it is characterized in that wherein having added a kind of organic reinforced fiber chemistry acrylic fiber, it is big that this fiber has fiber number, intensity height (tensile strength is more than 910Mpa), acid-alkali-corrosive-resisting, weather-proof, characteristics such as photostabilization is good are (weather-proof, photostabilization is except that fluorofibre, best in all natural and synthon), owing to be petroleum derivative, good with the pitch associativity that is all petroleum by-product, improved the cracking resistance of compound greatly, impact resistance, effectively solve the cracking problem on road surface, thereby prolong the work-ing life on road surface, reduce curing cycle.
Fiber reinforcement emulsified asphalt slurry seal compound provided by the present invention, wherein add organic reinforced fiber chemistry acrylic fiber, the cross-sectional shape of this chemistry acrylic fiber is peanut shape or circle, be the parallel cylindrical cylindricality vertically, length is the 4.0-10.0 millimeter, fineness is the 1.5-2.5 dtex, and density is 1.18g/cm
3
Fiber reinforcement emulsified asphalt slurry seal compound provided by the present invention, wherein the addition of organic reinforced fiber chemistry acrylic fiber is according to different road face situations and fixed, specific as follows: the addition of old asphalt pavement maintenance is 0.6~0.8%, the seal addition on new petrolize road surface is 0.2~0.3%, the addition of wearing course is 0.5-0.8% on the sand-gravel surface, the addition 0.5-0.8% of cement concrete pavement and bridge floor maintenance.(all per-cent is based on the per-cent of compound weight)
When producing this fiber reinforcement emulsified asphalt slurry seal compound, only need according to the desired adding proportion in different road surfaces fiber to be joined wherein, mixing and stirring gets final product.
Compared with prior art, the present invention has improved the performance of slurry seal greatly owing to the adding of fiber, make it have good high temperature resistance rut and cold cracking, stable mechanical property, good rheopexy, high water resistance and snappiness and tensile strength.And it can be produced with any slurry seal paver commonly used at the construction field (site), in the proportioning that does not change original slurry seal, mix and stir technology, under the situation of the technology that paves, thickness, rate of set, thickness and width pave on the road surface on demand.When effectively solving the cracking problem on road surface, prolonged the work-ing life on road surface, reduced curing cycle.
Embodiment:
Embodiment 1:
A kind of fast type Cationic Emulsion Asphalt Slurry of coagulating of splitting slowly of fiber of having added, its material and consumption are:
(1) grading of aggregate: be that 0.075~10mm continuum is joined, see the following form:
Grading of aggregate table (round hole sieve)
Size of mesh (mm) 10 5 2.5 1.2 0.6 0.3 0.15 0.074
Percent of pass (mm) 100 100 87.0 67.9 46.5 29.1 18.5 8.5
(2) filler: No. 325 cement of adding 1% in the mineral aggregate,
(3) pitch: adopt No. 100 petroleum pitch of Panjin.
(4) emulsifying agent: adopt a kind of positively charged ion to coagulate open to traffic type slurry seal emulsifying agent soon.The proportioning of emulsified bitumen (mass ratio) is: pitch: water: emulsifying agent=60: 40: 1.
(5) admixture: adopt Industrial Salt CaCl
2Make admixture, emulsifying agent: Industrial Salt=55: 84.
(6) chemical acrylic fiber: add according to 3% of compound total mass.
(7) Mixture Ratio is: aggregate: emulsion: water=100: 13: 9.
Claims (3)
1, a kind of fiber reinforcement emulsified asphalt slurry seal is characterized in that, has wherein added chemical acrylic fiber, and said chemical acrylic fiber length is the 4.0-10.0 millimeter, and fineness is the 1.5-2.5 dtex, and density is 1.18g/cm
3
2, fiber reinforcement emulsified asphalt slurry seal according to claim 1 is characterized in that: the shape of cross section of described chemical acrylic fiber is the peanut shape, vertically is the parallel cylindrical cylindricality.
3, fiber reinforcement emulsified asphalt slurry seal according to claim 1 and 2, it is characterized in that: the addition of chemical acrylic fiber is according to different road face situations and fixed, specifically: the addition of old asphalt pavement maintenance is 0.6~0.8%, the seal addition on new petrolize road surface is 0.2~0.3%, the addition of wearing course is 0.5-0.8% on the sand-gravel surface, the addition 0.4-0.6% of cement concrete pavement and bridge floor maintenance.(all per-cent is based on the per-cent of compound weight)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CNA021517649A CN1511882A (en) | 2002-12-27 | 2002-12-27 | Fiber reinforced emulsified pitch thin paste sealing layer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNA021517649A CN1511882A (en) | 2002-12-27 | 2002-12-27 | Fiber reinforced emulsified pitch thin paste sealing layer |
Publications (1)
Publication Number | Publication Date |
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CN1511882A true CN1511882A (en) | 2004-07-14 |
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CNA021517649A Pending CN1511882A (en) | 2002-12-27 | 2002-12-27 | Fiber reinforced emulsified pitch thin paste sealing layer |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010044822A1 (en) * | 2008-10-16 | 2010-04-22 | Road Science, L.L.C | Fiber modified layer and methods of making and using same |
CN101851890A (en) * | 2010-06-01 | 2010-10-06 | 申爱琴 | Fiber bitumen macadam seal coat method |
CN1908069B (en) * | 2005-08-01 | 2010-11-03 | 深圳市海川实业股份有限公司 | Mixture of special-shaped section hollow polymer fiber and modified asphalt |
US8603570B2 (en) | 2008-10-16 | 2013-12-10 | Arr-Maz Products, L.P. | Fiber modified layer and methods of making and using same |
CN103771764A (en) * | 2012-10-23 | 2014-05-07 | 江苏增光复合材料科技有限公司 | Novel environment-friendly asphalt concrete and construction method thereof |
CN105350420A (en) * | 2015-10-10 | 2016-02-24 | 重庆建工住宅建设有限公司 | Novel crack-resistant waterproof under-sealed layer |
-
2002
- 2002-12-27 CN CNA021517649A patent/CN1511882A/en active Pending
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1908069B (en) * | 2005-08-01 | 2010-11-03 | 深圳市海川实业股份有限公司 | Mixture of special-shaped section hollow polymer fiber and modified asphalt |
WO2010044822A1 (en) * | 2008-10-16 | 2010-04-22 | Road Science, L.L.C | Fiber modified layer and methods of making and using same |
US7897254B2 (en) | 2008-10-16 | 2011-03-01 | Road Science, Llc | Fiber modified layer and methods of making and using same |
CN102186930A (en) * | 2008-10-16 | 2011-09-14 | 公路科学有限责任公司 | Fiber modified layer and methods of making and using same |
US8057846B2 (en) | 2008-10-16 | 2011-11-15 | Arr-Marr Products, L.P. | Fiber modified layer and methods of making and using same |
US8491990B2 (en) | 2008-10-16 | 2013-07-23 | Arr-Maz Products, L.P. | Fiber modified layer and methods of making and using same |
US8603570B2 (en) | 2008-10-16 | 2013-12-10 | Arr-Maz Products, L.P. | Fiber modified layer and methods of making and using same |
CN101851890A (en) * | 2010-06-01 | 2010-10-06 | 申爱琴 | Fiber bitumen macadam seal coat method |
CN103771764A (en) * | 2012-10-23 | 2014-05-07 | 江苏增光复合材料科技有限公司 | Novel environment-friendly asphalt concrete and construction method thereof |
CN105350420A (en) * | 2015-10-10 | 2016-02-24 | 重庆建工住宅建设有限公司 | Novel crack-resistant waterproof under-sealed layer |
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