CN201722550U - Composite reinforced crack-proof cloth - Google Patents
Composite reinforced crack-proof cloth Download PDFInfo
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- CN201722550U CN201722550U CN2010202422594U CN201020242259U CN201722550U CN 201722550 U CN201722550 U CN 201722550U CN 2010202422594 U CN2010202422594 U CN 2010202422594U CN 201020242259 U CN201020242259 U CN 201020242259U CN 201722550 U CN201722550 U CN 201722550U
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- crack
- cracking cloth
- composite strengthening
- cloth
- proof cloth
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Abstract
The utility model relates to a composite reinforced crack-proof cloth which combines the advantages of fiberglass polyester crack-proof cloth and fiberglass geogrid and is used for asphalt pavement. The composite reinforced crack-proof cloth is weaved and compounded by geotextile and fiberglass geogrid, wherein the geotextile is fiberglass polyester crack-proof cloth, the gram weight of the fiberglass polyester crack-proof cloth is 120-160g/m2, and thickness is 0.6-1.08 mm. The linear density of binder yarn adopted for weaving is 167-220 dtex, and the strength of warp or weft is 0.4--0.5 N/tex. As the improvement of the utility model, the surface of the composite reinforced crack-proof cloth is provided with a coating layer. On the basis of the fiberglass polyester crack-proof cloth, the fiberglass geogrid which is used for composite reinforced asphalt pavement, and thus the composite reinforced crack-proof cloth can prevent reflection crack and water damage, prevents and delays the generation of the crack and improves the bearing capability of roads.
Description
Technical field
The present invention relates to a kind of composite strengthening anti-cracking cloth.
Background technology
Glass polyester anti-cracking cloth is that glass is the non-weaving cloth that main in addition an amount of polyester fiber is mixed and made into, the intensity of glass fibre and the pliability of polyester fiber have been taken into account, have good tension and pitch characterization of adsorption, good heat resistance is arranged, when heated bitumen concrete making, has the stability of high temperature, rolling the former glass polyester anti-cracking cloth in back makes bituminous concrete and slurry seal closely be fused into an integral body by the glass mylar, play waterproof action simultaneously, the water that makes basic unit can not permeate up and rainwater can down not permeate by the crack.Its technical indicator: mass area ratio is not less than 120g/m
2, in length and breadth to tensile strength greater than 3KN/m, in length and breadth to elongation at break less than 8%, in length and breadth to the trapezoidal tear brute force greater than 0.015KN, the Asphalt Absorption amount is greater than 0.8kg/m
2, fusing point is not less than 230 ℃.Its making also can effectively improve the pressure at place, crack to be concentrated, and stress is decomposed, and increases the pitch non-deformability, play and prevent that place, crack pressure is concentrated, pressure is decomposed, increase the pitch non-deformability, play preventing that the crack from producing and delaying the generation and the development function in crack.But because road conditions and soil texture are ever-changing, the form of pavement destruction also is different, and under abominable road conditions, because the intensity of glass polyester anti-cracking cloth is less, the effect that making glass polyester anti-cracking cloth is played is very limited.
The glass geo-grid is a main raw material with glass fibre alkali-free roving, the mesh material made from warp knitting technology.Glass has high strength, high elastic modulus, low elongation, no long-term creep, good heat stability, and physicochemical property is stable to have good melting with pitch.Owing to be network structure, make sufferedly in the asphalt surface course draw, compression disperses, make and form buffer strip between the stress area, be not sudden change, the destruction of reducing asphalt surface course; Low elongation reduces the pavement deflection amount, guarantees that the road surface can excessive deformation, prevents fatigue cracking.But can not provide a continuous constant watertight composition to the road surface, can not effectively prevent moisture penetration; The binding ability on grid and road surface is not very desirable simultaneously, and disease takes place to pass easily.
The utility model content
The utility model provides a kind of composite strengthening anti-cracking cloth, can be used for bituminous paving in conjunction with the advantage of glass polyester anti-cracking cloth and glass geo-grid.
Described composite strengthening anti-cracking cloth is composited through braiding by geotextiles and glass geo-grid, and described geotextiles is a glass polyester anti-cracking cloth, and the grammes per square metre of described glass polyester anti-cracking cloth is 120-160g/m
2, thickness is 0.6～1.08mm, and the line density of the bundled yarn that adopts during braiding is 167～220dtex, and warp thread or weft yarn intensity is 0.41～-0.50N/tex.Method through braiding composite earthwork cloth and geo-grid is a prior art, when promptly weaving geo-grid, utilizes lashing wire at warp, walks repeatedly between the fibrage of weft yarn and geotextiles, makes geo-grid and geotextiles woollen yarn knitting be one.Described braiding can be this area commonly used through the volume method.Described glass polyester anti-cracking cloth should be selected the product of proper density and thickness according to braiding apparatus, knitting needle can pass smoothly during with the assurance braiding, in addition according to the common practise of this area, the polyester composition is many more, and the pliability of glass polyester anti-cracking cloth is good more, but penetration Resistance can increase thereupon, the polyester composition is few more, the fragility of glass polyester anti-cracking cloth increases, and ftractures easily, therefore can be according to the composition of braiding apparatus and the definite glass polyester anti-cracking cloth that adopts of actual needs.
As preferred version of the present utility model, the warp count of glass geo-grid is 1-3 root/order, and weft count is 1-3 root/order, and more preferably the warp count of glass geo-grid is a 2/order, and weft count is a 2/order.
As preferred version of the present utility model, the every circle distance of bundled yarn is 2.8-4.5mm, more preferably 4.23mm.When the every circle distance of bundled yarn is 4.23mm, can guarantees that not only the polyester glass fibre anti-cracking cloth combines closely with the glass geo-grid, and save the consumption of bundled yarn, the puncture frequency of knitting needle when reducing braiding, protection knitting needle.
As improvement of the present utility model, described composite strengthening anti-cracking cloth surface also is provided with dope layer.Described dope layer can be a modified pitch, impregnated in the modified pitch solution by weaving the gained composite strengthening anti-cracking cloth, and oven dry obtains then.Modified pitch can be selected according to concrete engine request, and one can adopt conventional AH-70 bi tumenf orr oad.Described dipping, oven dry are this area conventional method.Obviously, for glass polyester anti-cracking cloth wherein can be merged with hard pitch when constructing, temperature during oven dry is unsuitable too high, one baking oven is divided into and is A, B, four zones of C, D, temperature is set to 100 ℃, 105 ℃, 120 ℃, 130 ℃ respectively, and temperature is provided with too high meeting has damage to the intensity of product.
When the utility model is used for asphalt pavement construction, should note following construction point:
(1) preparation of construction
1, material:
(1) composite strengthening anti-cracking cloth.(2) binding material: AH-70 number (A level) bi tumenf orr oad.
2, equipment:
Construction equipment: heated bitumen sprinkling wagon (heater is arranged, and shower nozzle must guarantee vaporific when spraying, and the sprinkling amount can be controlled), composite strengthening anti-cracking cloth installation apparatus (guaranteeing to lay straight, the corrugationless of back anti-cracking cloth).Construction appliance: air blast, iron roller, brushing, guarded blade utility knife etc. (, the composite strengthening anti-cracking cloth compacting being covered on binding material) in order to remove surface dust, disintegrating slag.
(2) construction technology and method
The composite strengthening anti-cracking cloth working procedure is: bottom surface is handled, and------bottom sprays the heated bitumen binding material---lays the new road surface of composite strengthening anti-cracking cloth---both sides chipping---maintenance and making to measure backguy.
1, bottom surface is handled:
(1) sharp-pointed on the road surface, lofty position is rooted out.Road surface breakage, the serious place of depression should root out broken position and fill up cover with asphalt flat.(2) fracture width must equating greater than the surface of 5mm greater than 7mm or the crack discrepancy in elevation, carries out the cementation of fissures with asphalt and fills up.(3) spraying the preceding sub-surface surface of binding material should keep dry, clean.(4) should carry out the sign and the statistical work of longitudinal spliced seam, cross-direction shrinkage crack, longitudinal crack before seal is constructed, so that follow-up anti-cracking cloth is laid.
2, measurement, backguy:
(1) on the surface of project supervision acceptance(check), contrast splicing or crack sign are determined splicing seams or crack location.
(2) reserve datum line by the composite strengthening anti-cracking cloth width of intend laying at splicing seams or both sides, crack, and with the foundation of polyamide fibre backguy as the laying anti-cracking cloth.Splicing seams or crack are placed in the middle.
3, spray the pitch binding material:
(1) with the composite strengthening anti-cracking cloth spool on the installation apparatus support perpendicular to the splicing seams crack.
(2) spill cloth heated bitumen binding material in bottom surface line scope, the lateral extent of sprinkling is than the wide 5-10cm of anti-cracking cloth.
When (3) spilling cloth heated bitumen binding material, construction temperature should be more than 5 ℃, and the heated bitumen optimum temperature should be at 165 ℃-180 ℃; When wind speed is too big, should reduce construction as far as possible.
(4) spill cloth heated bitumen binding material and will spray evenly accurate measurement.Heated bitumen binding material consumption is 1.2-1.4kg/m
2, and decide on asphaltic products specification and road-surface milling situation, to reach good bond effect.
4, the laying of composite strengthening anti-cracking cloth and overlap joint:
(1) treats that the heated bitumen binding material is liquid, carry out composite strengthening anti-cracking cloth immediately and lay (anti-cracking cloth makes progress, and reinforced grating is downward).Pitch sprinkling car and composite strengthening anti-cracking cloth are laid spacing must not surpass 3 meters, in order to avoid the decline of heated bitumen temperature is too fast, causes cohesive force not enough.
(2) lay composite strengthening anti-cracking cloth and should keep support steady, speed is even, and support is perpendicular to splicing line, and guarantees that the composite strengthening anti-cracking cloth bonding is in tight state, guarantees that the anti-cracking cloth of laying is level and smooth, and is straight.
(3) roll with brush and cylinder immediately after the laying, to guarantee to lay the timely and pitch bonding of composite strengthening anti-cracking cloth; If fold takes place when laying, should in time cut the fold position, overlap joint and with binding material gluing compacting.
(4) composite strengthening anti-cracking cloth should be laid by straight line; When need turning, the anti-cracking cloth knee is cut overlap joint and with binding material gluing compacting.It is wrinkling to avoid composite strengthening anti-cracking cloth to give a discount, and reduces the length that composite strengthening anti-cracking cloth is laid as far as possible.
(5) composite strengthening anti-cracking cloth longitudinal lap joint width is 5cm-10cm, and the transverse lap width is 10-15cm.To back one end pad during transverse lap under last end, and bond with heated bitumen.Lap width is unsuitable wide, in order to avoid the interlayer thickening weakens surface layer and basic unit's adhesion, causes surface layer to play diseases such as drum, disengaging, displacement.
(6) the heated bitumen chipping in time of the composite strengthening anti-cracking cloth both sides after the laying covers, in order to avoid seal is glued.
5, the new road surface of maintenance and making:
(1) after composite strengthening anti-cracking cloth has been laid, to normal temperature, forbids that pedestrian or vehicle enter in that hot sticky ramming material is uncolled.Forbid in 12 hours that vehicle travels and bring to a halt or take a sudden turn on composite strengthening anti-cracking cloth, in order to avoid composite strengthening anti-cracking cloth is damaged.
(2) paving of upper strata asphalt carried out after being preferably in composite strengthening anti-cracking cloth construction every other day.
(3) points for attention:
(1) in composite strengthening anti-cracking cloth when construction,, the site operation personnel should wear protective gloves and safety goggles, in order to avoid scalded by hard pitch or stabbed finger by composite strengthening anti-cracking cloth.
(2) must not use in storage process in the construction and make moist, pollute or damaged composite strengthening anti-cracking cloth.
The utility model glass geo-grid of using of compound enhancing bituminous paving in addition on the basis of glass polyester anti-cracking cloth, by two or more combinations of materials is become a species complex, make the various material capabilities in this complex can both bring into play its effect, to remedy the deficiency of homogenous material on performance, make it can prevent reflection crack and water destruct, can prevent and delay the generation in other crack again, improve the bearing capacity of road.Because glass polyester anti-cracking cloth combined together with pitch in when construction, so the glass geo-grid is difficult for taking place the passing disease.The utlity model has following characteristics:
1, by knitting skill grid, glass polyester anti-cracking cloth, bundled yarn three are combined closely, form an effective complex, improved the bulk strength value of material, the performance indications of described composite strengthening anti-cracking cloth are: mass area ratio is greater than 300g/m
2, in length and breadth to fracture strength greater than 50KN/m, in length and breadth to elongation at break less than 4%, in length and breadth to the trapezoidal tear brute force greater than 400N, the broken brute force of CBR reaches 3KN.
2, anti-permeability.The utility model can stand the construction at high temperature of the compound of modified asphalt concrete or bituminous concrete, provides an indeformable watertight composition of steady and continuous to the road surface, effectively prevents the moisture content infiltration, has avoided the damage of supercrust and basic unit.
3, prevent and the delayed reflex crack.The product percentage elongation is little, and the tensile strength height can effectively be eliminated or reduce the stress at junction, road surface or crack place and concentrate, and the expansion in control crack and upwards reflection play preventing and the appearance of delayed reflex crack at bituminous paving, prolongs road service life.
Description of drawings
Fig. 1 is embodiment 1 described composite strengthening anti-cracking cloth (not containing a dope layer) structure chart.
The specific embodiment
In following examples, the size of mesh opening of glass geo-grid is 25.4 * 25.4cm.
As shown in Figure 1, described composite strengthening anti-cracking cloth is composited through volume by geotextiles 1 and glass geo-grid 2, and described geotextiles 1 is a glass polyester anti-cracking cloth, and the grammes per square metre of described glass polyester anti-cracking cloth is 120g/m
2, thickness is 0.66～0.68mm, and the mass ratio of polyester fiber and glass fibre is 30: 70 in the described glass polyester anti-cracking cloth, and the density of the warp thread 3 of glass geo-grid is 2/order, and the density of weft yarn 4 is 2/order.The line density of the bundled yarn 5 that adopts during braiding is 220dtex, and every circle distance is 4.23mm, and the intensity of warp thread 3, weft yarn 4 is 0.41N/tex.Described being woven to through the volume method.
" SL/T-235-1999 " detects according to standard, the mass area ratio 375g/m of gained composite strengthening anti-cracking cloth
2, longitudinal fracture intensity reaches 53KN/m, and cross-breaking strength reaches 51KN/m; Being 2.7% to elongation at break in length and breadth, is 800N to the trapezoidal tear brute force in length and breadth, and the CBR bursting strength reaches 3.3KN.
" SL/T-235-1999 " detects according to standard, the mass area ratio 390-400g/m of dipping back gained composite strengthening anti-cracking cloth
2, longitudinal fracture intensity reaches 55-58KN/m, and cross-breaking strength reaches 53-55KN/m; Being 1.9-2.7% to elongation at break in length and breadth, is 1000N to the trapezoidal tear brute force in length and breadth, and the CBR bursting strength reaches 3.5KN.This product has been used in spring summer high speed (Quanzhou is to the Xiamen), osmanthus willow engineerings such as (Guilin are to Liuzhou) at a high speed, occurs the situation of repairing till now as yet.
Described composite strengthening anti-cracking cloth is composited through braiding by geotextiles 1 and glass geo-grid 2, and described geotextiles 1 is a glass polyester anti-cracking cloth, and the grammes per square metre of described glass polyester anti-cracking cloth is 160g/m
2, thickness is 1.0～1.08mm, and the mass ratio of polyester fiber and glass fibre is 25: 75 in the described glass polyester anti-cracking cloth, and the density of the warp thread 3 of glass geo-grid is 2/order, and the density of weft yarn 4 is 2/order.The line density of the bundled yarn 5 that adopts during braiding is 170dtex, and every circle distance is 4.23mm, and the intensity of warp thread 3, weft yarn 4 is 0.50N/tex.Described being woven to through the volume method.Braiding gained composite strengthening anti-cracking cloth impregnated in the AH-70 bi tumenf orr oad and water is in the modified pitch solution that mixes at 1: 15 by mass ratio, dries then to obtain in baking oven.Baking oven is divided into and is A, B, four zones of C, D, and temperature is set to 100 ℃, 105 ℃, 120 ℃, 130 ℃ respectively.Composite strengthening anti-cracking cloth should smooth corrugationless phenomenon before the dipping.
" SL/T-235-1999 " detects according to standard, the mass area ratio 415g/m of dipping back gained composite strengthening anti-cracking cloth
2, longitudinal fracture intensity reaches 59-63KN/m, and cross-breaking strength reaches 56-59KN/m; Being 1.8-2.7% to elongation at break in length and breadth, is 1100N to the trapezoidal tear brute force in length and breadth, and the CBR bursting strength reaches 3.6KN.
Claims (7)
1. a composite strengthening anti-cracking cloth is composited through braiding by geotextiles and glass geo-grid, it is characterized in that described geotextiles is a glass polyester anti-cracking cloth, and the grammes per square metre of described glass polyester anti-cracking cloth is 120-160g/m
2, thickness is 0.6～1.08mm, and the line density of the bundled yarn that adopts during braiding is 167～220dtex, and warp thread or weft yarn intensity are 0.41～0.50N/tex.
2. composite strengthening anti-cracking cloth as claimed in claim 1, the warp count that it is characterized in that the glass geo-grid is 1-3 root/order, weft count is 1-3 root/order.
3. composite strengthening anti-cracking cloth as claimed in claim 2, the warp count that it is characterized in that the glass geo-grid is a 2/order, weft count is a 2/order.
4. composite strengthening anti-cracking cloth as claimed in claim 1 is characterized in that the every circle distance of bundled yarn is 2.8-4.5mm.
5. composite strengthening anti-cracking cloth as claimed in claim 4 is characterized in that the every circle distance of bundled yarn is 4.23mm.
6. as each described composite strengthening anti-cracking cloth among the claim 1-5, it is characterized in that described composite strengthening anti-cracking cloth surface also is provided with dope layer.
7. composite strengthening anti-cracking cloth as claimed in claim 6 is characterized in that described dope layer is a modified pitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202422594U CN201722550U (en) | 2010-06-30 | 2010-06-30 | Composite reinforced crack-proof cloth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202422594U CN201722550U (en) | 2010-06-30 | 2010-06-30 | Composite reinforced crack-proof cloth |
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| Publication Number | Publication Date |
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| CN201722550U true CN201722550U (en) | 2011-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010202422594U Expired - Fee Related CN201722550U (en) | 2010-06-30 | 2010-06-30 | Composite reinforced crack-proof cloth |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104472189A (en) * | 2014-12-16 | 2015-04-01 | 山东浩珂矿业工程有限公司 | Preparation method for grass-planting net for water and soil protection |
| CN105951555A (en) * | 2016-05-09 | 2016-09-21 | 山东大庚工程材料科技有限公司 | Reinforced fiberglass geogrid for subgrade and manufacturing and construction methods thereof |
-
2010
- 2010-06-30 CN CN2010202422594U patent/CN201722550U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104472189A (en) * | 2014-12-16 | 2015-04-01 | 山东浩珂矿业工程有限公司 | Preparation method for grass-planting net for water and soil protection |
| CN104472189B (en) * | 2014-12-16 | 2017-07-18 | 浩珂科技有限公司 | A kind of preparation method of the grass planting net protected for water and soil |
| CN105951555A (en) * | 2016-05-09 | 2016-09-21 | 山东大庚工程材料科技有限公司 | Reinforced fiberglass geogrid for subgrade and manufacturing and construction methods thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110126 Termination date: 20140630 |
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| EXPY | Termination of patent right or utility model |