CN103485256A - Grading glass fiber crushed stone seal coat preparation method - Google Patents
Grading glass fiber crushed stone seal coat preparation method Download PDFInfo
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- CN103485256A CN103485256A CN201310412490.1A CN201310412490A CN103485256A CN 103485256 A CN103485256 A CN 103485256A CN 201310412490 A CN201310412490 A CN 201310412490A CN 103485256 A CN103485256 A CN 103485256A
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Abstract
The invention relates to a grading glass fiber crushed stone seal coat preparation method, which comprises: blending and matching glass fibers with different lengths of 30 mm, 60 mm and 120 mm according to a mass ratio of (0.3-0.4):1:(0.3-0.4) to obtain mixing glass fibers; and spreading a layer of modified emulsified asphalt on the road surface, spreading the mixing glass fibers, spreading a layer of modified emulsified asphalt, spreading a layer of crushed stone, and rolling and leveling. According to the present invention, the glass fibers with different lengths are blended and matched to obtain the mixing glass fibers, and the obtained mixing glass fibers are uniformly distributed and are connected in a crosswise manner so as to effectively disperse external force of the concentrated stress effect and increase cracking performance of the seal coat material; the mixing glass fibers are uniformly distributed in the fiber crushed stone seal coat so as to avoid agglomeration phenomenon, form a good network structure, and provide a good external force bearing effect; and the prepared grading glass fiber crushed stone seal coat has good water resistance.
Description
Technical field
The invention belongs to the highway maintenance field, be specifically related to a kind of grating glass fiber crushed stone sealing preparation method.
Background technology
The fiber crushed stone sealing be mainly used in the common road bituminous pavement preventive maintenance and in the surface abrasion layer repaiied, asphalt highways at different levels are newly-built, stress absorption intermediate layer or the Sub-sealing Course of overhaul and Cement Concrete Pavement flexible pavement, the surface layer of the waterproofing course of Asphalt Concrete Deck Pavement and low-grade highway (particularly country road).Wherein as bituminous pavement preventive maintenance or in surface abrasion layer and the stress absorption intermediate layer of repairing, apply the most general.During existing fiber crushed stone sealing construction, cut into the fiber of certain-length through special technique, in upper and lower layers of asphalt binder, be disorderly to being uniformly distributed and mutually overlapping, formed the network winding structure with bituminous mixture, similar one deck has high resiliency and high-intensity protective screening, can effectively improve the comprehensive mechanical properties such as tension, shearing resistance, resistance to compression and impact strength of fiber crushed stone sealing.Existing fiber crushed stone sealing mix-design material mainly contains modified emulsifying asphalt, rubble and fiber.The length of existing fiber cutting should be determined according to combined factors such as former pavement disease type and degree, mulseal type and consumption, fiber crushed stone sealing thickness, rubble consumption, traffic volume type and sizes, be generally 30～120mm, all adopt the fiber of single length.
But use the fiber of single length, workability for construction is poor, in work progress, easily cause sprinkling inhomogeneous, cause fiber in sealing to cause clustering phenomena, the fiber after conglomeration can cause pavement roughness, is difficult to can not form with pitch the compacted zone of continous-stable, under Driving Loading, water will enter between fiber bitumen macadam seal coat He Jiu road, thereby the adhesion stress of Shi Jiu road and fiber bitumen macadam seal coat descends, and affects Road Service Life.The length of fiber is the key factor that affects the sealing functional performance, fibre length is too short. and its reinforcement is stablized and toughness reinforcing action of crack arrest will be weakened, fibre-reinforced performance is not fully utilized, thereby affect the whole mechanical property of fiber crushed stone sealing: if but fibre length is oversize, the difficulty of cutting will be increased, be difficult to guarantee uniformity and the random distribution of spreading, also will affect the performance of its performance and whole mechanical property.In conjunction with the gradation design theory of gathering materials, fiber is carried out to gradation design thus, make the fiber of wrapping up under the effect of applying at pitch mutually intersect to form good net structure, better guarantee that fiber plays a role at bitumen macadam seal coat.
Summary of the invention
The object of the invention is to overcome the problems of the prior art, a kind of grating glass fiber crushed stone sealing preparation method is provided, it has mechanical property preferably.
For achieving the above object, the present invention adopts following technical scheme:
1) preparation of combined fiberglass
Length is respectively to the glass fiber of 30mm, 60mm, 120mm by (0.3～0.4): 1:(0.3～0.4) mass ratio mix and join, obtain combined fiberglass;
2) spreading one deck modified emulsifying asphalt on road surface at first, then spread the paving combined fiberglass, spreading one deck modified emulsifying asphalt more afterwards, and last spreading one deck rubble, then roll smooth.
In described step 1), glass fiber is for spraying with roving type glass fiber, and to spray be 12～23 μ m with the diameter of roving type glass fiber, and tex is 150～9600tex.
Described step 2) rubble in is basalt or diabase, and ballast grain sizes is 3～6mm or 6～10mm.
Described step 2) in, the spread quantity of modified emulsifying asphalt is 1.9kg/m
2; The spreading amount of rubble is 8kg/m
2; The spread quantity of combined fiberglass is 75g/m
2.
Rolling described step 2) adopts 6～8t pneumatic-tired rollers to carry out, and rolls initial velocity and be less than or equal to 2km/h.
Described step 2) in, the preparation method of modified emulsifying asphalt is as follows:
I. the preparation of soap lye:
At first emulsifier, stabilizing agent and water are joined in the soap lye preparing tank, and be heated to 70 ℃～80 ℃, then add water in the soap lye preparing tank, after stirring by adjustment to 60 ℃～70 ℃, modifier is added in the soap lye preparing tank again, regulating the pH value is 5～6, and insulation under 60 ℃～70 ℃, obtains soap lye; Wherein, the addition of emulsifier accounts for 1% of water gross mass; The addition of stabilizing agent accounts for 0.2% of water gross mass; The addition of modifier accounts for 5% of water gross mass;
II. the heating of pitch: by asphalt heating to 120 ℃～130 ℃ and insulation, obtain the pitch after heat treatment;
III. prepare modified emulsifying asphalt: at first soap lye is added in colloid mill, then under agitation to the pitch added in colloid mill after heat treatment, through the grinding of colloid mill, mix, obtain modified emulsifying asphalt; Wherein, the mass ratio of the pitch after heat treatment and soap lye is 65:35.
Described pH value adopts hydrochloric acid to be regulated.
Described emulsifier is the quaternary ammonium salt cationic emulsifier; Modifier is cationic SBR latex; Stabilizing agent is ammonium chloride.
Described quaternary ammonium salt cationic emulsifier is that JY-R1 type cation splits asphalt emulsifier or the real big gram 63D emulsifier of U.S.'s dimension soon.
With respect to prior art, the beneficial effect that the present invention has:
The present invention is mixed and is joined by the glass fiber by different length, obtain combined fiberglass, resulting combined fiberglass is evenly distributed, fiber intersects and is connected, form a good stressed active region, thereby the external force of effectively disperseing the effect of concentrated stress, the cracking resistance of raising sealing material.
Combined fiberglass of the present invention being evenly distributed in the fiber crushed stone sealing, avoided clustering phenomena, makes it to intersect to be connected, and forms good net structure, has the good effect of bearing external force.Fiber bitumen macadam seal coat prepared by the present invention has good water proofing property.
Fiber bitumen macadam seal coat construction has not had the whipping process of pitch, fiber, aggregate, can form like this pitch fibers film of continuous uniform, simultaneously, the modified emulsifying asphalt binder of good fluidity infiltrates surface detail microcrack depths smoothly, guaranteed that sealing has good integral waterproofing performance, be applicable to very much the climatic characteristic that the south China regional precipitation is many, rainy season is long.
The present invention adopts fiber crushed stone sealing prepared by the glass fiber of different length to have the cracking resistance that improves flexible pavement, the function that effectively reduces reflection cracking in a pavement.The whole mechanical characteristics of the fiber crushed stone sealing that the present invention adopts research of grade-suit theory to prepare is flexible, and good non-deformability is provided, and can increase substantially the cracking resistance of semi-rigid asphalt pavement, effectively reduces reflection cracking in a pavement.Simultaneously, the present invention is also a kind of thin-layer bituminous road surface, both can be used as the Lamina deck and has used, and can be used as again the stress absorbing layer of road structure, and the stress that the absorption portion traffic load produces delays road surface and produces the time of destroying.
The invention provides a kind of can be engineering demands, that there is operability, in the fiber crushed stone sealing to the grating fiber comparatively perfect method, the method can guarantee that combined fiberglass (being the grating fiber) has uniformity and good mechanical property preferably; The method not only provides technical support for the application of grating fiber, and provides reference to correlation theory perfect.It is poor that the present invention has overcome the fiber crushed stone sealing workability of glass fiber of available technology adopting single particle size, glass fiber skewness, the uncompacted problem of structure.
Further, the characteristics that the modified emulsifying asphalt storage stability is good, solid content is high, viscosity is large prepared by the present invention, made up the modified emulsifying asphalt less stable, and emulsion is easily emanated, precipitated, and easily forms the deficiency of separating layer.
The accompanying drawing explanation
The fibers content down cut intensity that Fig. 1 is different length and hot strength contrast.
Fig. 2 is the shear test fundamental diagram.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
The present invention includes following steps:
1) preparation of modified emulsifying asphalt
I. the preparation of soap lye:
At first emulsifier, stabilizing agent and water are joined in the soap lye preparing tank, and be heated to 70 ℃～80 ℃, then add water in the soap lye preparing tank, uniform stirring also adjusts the temperature to 60 ℃～70 ℃, modifier is added in the soap lye preparing tank again, and be 5～6 with the salt acid for adjusting pH value, and insulation under 60 ℃～70 ℃, obtain soap lye; Wherein, the addition of emulsifier accounts for 1% of water gross mass; The addition of ammonium chloride accounts for 0.2% of water gross mass; The addition of cationic SBR latex accounts for 5% of water gross mass.
II. the heating of pitch: by asphalt heating to 120 ℃～130 ℃ and insulation, obtain the pitch after heat treatment;
III. prepare modified emulsifying asphalt: at first soap lye is added in colloid mill, then under agitation to the pitch added in colloid mill after heat treatment, through the grinding of colloid mill, mix, obtain modified emulsifying asphalt; Wherein the mass ratio of the pitch after heat treatment and soap lye is 65:35; Wherein, emulsifier is the quaternary ammonium salt cationic emulsifier, and preferably Jinyang JY-R1 type cation splits asphalt emulsifier or the real big gram 63D emulsifier of U.S.'s dimension soon; Modifier is cationic SBR latex; Stabilizing agent is ammonium chloride.
2) selection of rubble
Fiber bitumen macadam seal coat rubble used should select cleaning, with the good rubble of asphalt adhesion, and the fiber crushed stone sealing is as the cover of flexible pavement, its rubble that spreads paving will have very high abrasion resistance.Rubble specification commonly used is 3～6mm, 6～10mm, adopts the rubble of single particle size, and the specification of concrete building stones used should consider definite according to former road surface road conditions, traffic loading and constructing structure.In addition, according to many-sided research and case history, under the condition of condition license, should select the rubble of clean basalt as fiber bitumen macadam seal coat as far as possible.When if locality does not have basalt, also can select clean diabase, should avoid using granite and limestone as far as possible.
For determining of rubble consumption, the present invention adopts the method for cleaning test to be determined, main size, the hardness on former road surface and the factors such as size of selected ballast grain sizes of considering the traffic volume, in definite rubble consumption, the coverage scale that should guarantee rubble reaches 100%, and each other can close proximity.
3) preparation of combined fiberglass
In the present invention, the preparation of combined fiberglass is the selection of glass fiber and determining of grating size, be specially the theory that adopts the grating glass fiber, adopt the fiber of different length to be mixed the theory of joining, what in consideration fiber crushed stone sealing, cementing agent was used is modified emulsifying asphalt, heat resistance to fiber is less demanding, and selects the glass fiber grating fiber used as bitumen macadam seal coat according to the factor of the aspects such as the excellent performance of the glass fiber of different length and economical cost.
Roving type glass fiber for the injection that the present invention adopts, it is formed by multiply precursor network system, per share precursor is containing 200 glass fiber single filaments, glass fiber diameter 12～23 μ m, tex 150～9600tex(g/km).The length of the glass fiber adopted is 30mm, 60mm, 120mm, and specifically the volume of each length is determined according to shear test, flowing pressure test and strip tension test.
Determining of each length consumption of grating fiber:
In the present invention, select laboratory shear test and tension test to satisfy the need with the impact of performance as different length fiber consumption in the testing fiber bitumen macadam seal coat.In the present invention, the fiber optimum amount is 75g/m
2.At first, determine fiber consumption, the fiber that carries out afterwards 30mm, 60mm, 120mm carries out mix in different ratios, make the test specimen of cleaning test test specimen, shear test block, flowing pressure test specimen and tension test, then draw the ratio of optimum different fibers contents, the consumption of each length fiber of determining with this according to the interpretation of result of cleaning test, shear test, flowing pressure test and tension test.
1. the detailed process of cleaning test is:
A) making of test specimen
1. asphaltic felt is cut into to the disk shape of diameter 286mm, and clean the dust eraser on asphaltic felt, obtain the asphaltic felt disk;
2. will be placed on smooth asphaltic felt disk also placed in the middle as circular shuttering (plastic plate of 300mm * 300mm * 6mm (thick), there is the circular hole that a diameter is 279mm centre);
3. spreading one deck modified emulsifying asphalt at first, then spread the paving combined fiberglass, spreading one deck modified emulsifying asphalt more afterwards, and last spreading rubble uniformly, specimen molding is complete, removes circular shuttering;
4. with the object of 10kg, test specimen is carried out to compacting, compacting gets final product in 3 minutes;
5. after the complete breakdown of emulsion of modified emulsifying asphalt, the floating layer of test specimen rubble fallen in cleaning, can clean test.
The cleaning test adopts wet wheel abrasion instrument to be tested, but will change original rubber tube abrasion head into homemade cleaning brush (iron that can buy on the market or plastics brush).
B) process of the test
During test, the Sheng sample dish that test specimen is housed is fixed on the abrasion instrument elevating stage, lifting platform also pins, and guarantees that test specimen contacts with cleaning brush.After starting wet wheel abrasion instrument, the cleaning time is 5 minutes, and then the circular area that sweep-out pattern is diameter 10cm takes the quality of sweeping rubble, according to sweep-out pattern, calculates de-stone rate.
2. the detailed process of shear test is:
1) making of test specimen
1. by little marshal piece scrub and dry for standby;
2. at first the fiber of different proportion is carried out to mix, then add according to one deck modified emulsifying asphalt the mode that layer of glass adds a coating emulsified asphalt, spreading modified emulsifying asphalt and fiber, then another little marshal piece is pressed on the marshal piece that is covered with the fiber asphalt film, and guarantees the clean free from dust of contact surface;
3. then with the object of heavy 5kg, carry out static compacting 3 minutes, guarantee that two marshal pieces can be well-bonded by the fiber asphalt film;
4. test specimen is carried out to health, after being generally five days, treat that the complete breakdown of emulsion of modified emulsifying asphalt carries out shear test.
2) process of the test
Shear test adopts the interlayer shear test instrument, the shear test operating principle as shown in Figure 2:
Process of the test is: increase gradually horizontal thrust, be the shear strength of test specimen during test specimen failure (being that adhesive linkage destroys)
3. strip tension test:
1) making of test specimen
1. by preprepared glass plate scrub oven dry;
2. coat interleaving agent on glass plate, facilitate the moulding of test specimen;
3. modified emulsifying asphalt and fiber are added to the mode that layer of glass adds a coating emulsified asphalt according to one deck modified emulsifying asphalt, successively spread is scribbling on the glass plate of interleaving agent;
4. by test specimen demoulding from glass plate, the fiber asphalt the plate then demoulding got off is cut the strip into 10cm * 8cm;
2) process of the test
During strip tension test process, by MTS universal material testing instrument two ends chuck, fix the fiber asphalt strip, stretched with the 10mm/min rate of extension, until fracture is fiber asphalt film strip hot strength.
4. flowing pressure test:
1) test specimen is made
1. by preprepared glass plate scrub oven dry;
2. coat interleaving agent on glass plate, facilitate the moulding of test specimen;
3. first spreading one deck modified emulsifying asphalt, then spread paving one deck modified emulsifying asphalt again after the spreading combined fiberglass, finally spreads the paving rubble;
4. with the object of 10kg, test specimen is carried out to compacting, compacting gets final product in 3 minutes
5. by test specimen demoulding from glass plate, the fiber bitumen macadam seal coat then demoulding got off is cut as diameter of phi=100 ± 1mm standard size.
2) process of the test
At first the fiber bitumen macadam seal coat test specimen completed is placed on the porous plate of the open-work that diameter is 3mm, and sealing.Open the water inlet pressurization device after the test specimen good seal, under 25 ℃ of environment temperatures, make water advance lentamente the people and be full of close water die trial, as sample does not seep water, with the extreme difference of every 0.1MPa, pressurize step by step, until pressure reduces suddenly, till fiber bitumen macadam seal coat is permeated, and record maximum osmotic pressure.
The detailed process of each length fiber consumption of grating is:
Step 1: the selection of fibre length
The average length of existing fiber bitumen macadam seal coat technology glass fiber used is generally the fiber of the single length of 30mm, 60mm or 120mm.And according to domestic and foreign experience and practical implementation experience, the scope that glass fiber adopts is 30mm～120mm, adopts the glass fiber construction workability of 60mm poor, the pavement performance aspect is unstable.And, in the present invention, the fiber of employing 30mm, 60mm, tri-kinds of different lengths of 120mm is mixed joins, there is good pavement performance and there is good construction workability.
Step 2: the different length fiber is mixed the selection of adapted amount
By the fiber of 30mm, 60mm, 120mm by 0.2:1:0.2,0.2:1:0.3,0.2:1:0.4,0.3:1:0.2,0.3:1:0.3,0.3:1:0.4,0.4:1:0.2,0.4:1:0.3, nine kinds of mass ratioes of 0.4:1:0.4 are mixed joins, do and shear and the strip tension test, according to shear strength and tensile strength, determine best mixed ratio example.Concrete experimental data is in Table 1:
Parameter during table 1 different length fiber mixed ratio example
(volume is mass ratio) shear strength and hot strength contrast under the fibers content that Fig. 1 is different length, as can be seen from Figure 1, comprehensive relatively shear strength and tensile strength, can draw 30mm, 60mm, the mixed ratio example of 120mm glass fiber the best is (0.3～0.4): 1:(0.3～0.4), shear strength now is at 0.18～0.21MPa, the tensile strength of strip tension test reaches 0.86～0.97MPa, the pressure differential can bear under the flowing pressure test can reach 0.89～1.04MPa, can be good at meeting the needs of sealing design, there is obvious advantage than the general fibre crushed stone sealing.
In real work, the consumption of each length glass fiber is comprehensively determined in the aspects such as size that also will consider the disease situation on former road surface and the traffic volume.
4) construction control: spreading one deck modified emulsifying asphalt at first, then spread the paving combined fiberglass, spreading one deck modified emulsifying asphalt more afterwards, last spreading one deck combined fiberglass, then roll 2～3 times.Wherein, the spread quantity of modified emulsifying asphalt is 1.9kg/m
2; The spreading amount of rubble is 8kg/m
2; The spread quantity of combined fiberglass is 75g/m
2.In the present invention, before spreading paving fiber crushed stone sealing, by the mix of different length fiber, the fiber of different length is uniformly distributed, avoids single length fiber concentrated area phenomenon.In addition, after one section rubble of spreading, should be immediately with the follow-up of 6～8t pneumatic-tired rollers, roll, and roll initial velocity and should not surpass 2km/h, can suitably increase later, the gravel particle immersion pitch degree of depth after voltage stabilizing is particle diameter 1/2～2/3 is advisable.
The material of the employing in the present invention is the material of public offering on market, and the present invention has obvious advantage in the following aspects:
1) preparation of modified emulsifying asphalt, the method that adopts the emulsification modification simultaneously to carry out, the characteristics that the modified emulsifying asphalt storage stability is good, solid content is high, viscosity is large of preparation, made up the modified emulsifying asphalt less stable like this, emulsion is easily emanated, is precipitated, and easily forms the deficiency of separating layer.
2) adopt the theory of grating glass fiber, the aggregate grading theory is applied in the configuration of fiber of fiber crushed stone sealing, the grating fiber drawn like this is evenly distributed, fiber intersects and is connected, form a good stressed active region, thereby the external force of effectively disperseing the effect of concentrated stress, the cracking resistance of raising sealing material.
3) in advance the grating fiber of preparation is carried out to mix, divide and mix mix five times, each mix 100-180s, so just guaranteed fiber being evenly distributed in the fiber crushed stone sealing, avoided clustering phenomena, made it to intersect connected, form good net structure, there is the good effect of bearing external force.
4) fiber bitumen macadam seal coat that prepared by the present invention has good water proofing property.Present invention focuses on the theory that fiber adopts grating, and fiber bitumen macadam seal coat construction has not had the whipping process of pitch, fiber, aggregate, can form like this pitch fibers film of continuous uniform, simultaneously, the modified emulsifying asphalt binder of good fluidity infiltrates surface detail microcrack depths smoothly, guaranteed that sealing has good integral waterproofing performance, be applicable to very much the climatic characteristic that the south China regional precipitation is many, rainy season is long.
5) the fiber crushed stone sealing that prepared by the fiber of employing different length has the cracking resistance that improves flexible pavement, the function that effectively reduces reflection cracking in a pavement.It is flexible adopting the whole mechanical characteristics of the fiber crushed stone sealing of research of grade-suit theory design, and good non-deformability is provided, and can increase substantially the cracking resistance of semi-rigid asphalt pavement, effectively reduces reflection cracking in a pavement.Simultaneously, be also a kind of thin-layer bituminous road surface, both can be used as the Lamina deck and used, can be used as again the stress absorbing layer of road structure, the stress that the absorption portion traffic load produces, delay road surface and produce the time of destroying.
In sum, the present invention be a kind of can engineering demands, have operability, in the fiber crushed stone sealing to the grating fiber comparatively perfect preparation method, can guarantee that the grating fiber has uniformity and good mechanical property preferably.The method not only provides technical support for the application of grating fiber, and provides reference to correlation theory perfect.
Claims (9)
1. a grating glass fiber crushed stone sealing preparation method is characterized in that comprising the following steps:
1) preparation of combined fiberglass
Length is respectively to the glass fiber of 30mm, 60mm, 120mm by (0.3～0.4): 1:(0.3～0.4) mass ratio mix and join, obtain combined fiberglass;
2) spreading one deck modified emulsifying asphalt on road surface at first, then spread the paving combined fiberglass, spreading one deck modified emulsifying asphalt more afterwards, and last spreading one deck rubble, then roll smooth.
2. a kind of grating glass fiber crushed stone sealing preparation method according to claim 1, it is characterized in that, in described step 1), glass fiber is for spraying with roving type glass fiber, and spraying is 12～23 μ m with the diameter of roving type glass fiber, and tex is 150～9600tex.
3. a kind of grating glass fiber crushed stone sealing preparation method according to claim 1, is characterized in that described step 2) in rubble be basalt or diabase, ballast grain sizes is 3～6mm or 6～10mm.
4. a kind of grating glass fiber crushed stone sealing preparation method according to claim 1, is characterized in that described step 2) in the spread quantity of modified emulsifying asphalt be 1.9kg/m
2; The spreading amount of rubble is 8kg/m
2; The spread quantity of combined fiberglass is 75g/m
2.
5. a kind of grating glass fiber crushed stone sealing preparation method according to claim 1, is characterized in that described step 2) roll and adopt 6～8t pneumatic-tired rollers to carry out, and roll initial velocity and be less than or equal to 2km/h.
6. a kind of grating glass fiber crushed stone sealing preparation method according to claim 1, is characterized in that described step 2) in the preparation method of modified emulsifying asphalt as follows:
I. the preparation of soap lye:
At first emulsifier, stabilizing agent and water are joined in the soap lye preparing tank, and be heated to 70 ℃～80 ℃, then add water in the soap lye preparing tank, after stirring by adjustment to 60 ℃～70 ℃, modifier is added in the soap lye preparing tank again, regulating the pH value is 5～6, and insulation under 60 ℃～70 ℃, obtains soap lye; Wherein, the addition of emulsifier accounts for 1% of water gross mass; The addition of stabilizing agent accounts for 0.2% of water gross mass; The addition of modifier accounts for 5% of water gross mass;
II. the heating of pitch: by asphalt heating to 120 ℃～130 ℃ and insulation, obtain the pitch after heat treatment;
III. prepare modified emulsifying asphalt: at first soap lye is added in colloid mill, then under agitation to the pitch added in colloid mill after heat treatment, through the grinding of colloid mill, mix, obtain modified emulsifying asphalt; Wherein, the mass ratio of the pitch after heat treatment and soap lye is 65:35.
7. a kind of grating glass fiber crushed stone sealing preparation method according to claim 6, is characterized in that, described pH value adopts hydrochloric acid to be regulated.
8. a kind of grating glass fiber crushed stone sealing preparation method according to claim 6, is characterized in that, described emulsifier is the quaternary ammonium salt cationic emulsifier; Modifier is cationic SBR latex; Stabilizing agent is ammonium chloride.
9. a kind of grating glass fiber crushed stone sealing preparation method according to claim 8, is characterized in that, described quaternary ammonium salt cationic emulsifier is that JY-R1 type cation splits asphalt emulsifier or the real big gram 63D emulsifier of U.S.'s dimension soon.
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| 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 |
| CN106368095A (en) * | 2016-09-30 | 2017-02-01 | 长安大学 | Preventative curing functional layer with intelligent snow melting function and construction method |
| CN107399929A (en) * | 2017-07-21 | 2017-11-28 | 张娟 | A kind of preparation method of highway cement pitch concrete |
| CN107445518A (en) * | 2017-07-24 | 2017-12-08 | 扬州大学 | Grading basalt fibre asphalt of high fatigue resistance and preparation method thereof |
| CN108875110A (en) * | 2017-05-15 | 2018-11-23 | 南京林业大学 | A method of calculating crushed stone sealing medium stone dosage |
| CN110093830A (en) * | 2019-04-22 | 2019-08-06 | 西安正源道路养护工程有限公司 | The fine rubble top dressing layer of bituminous pavement and its construction method |
| CN111155402A (en) * | 2020-01-20 | 2020-05-15 | 西安嘉程建设科技有限公司 | Composite road maintenance top facing construction process |
| CN111235998A (en) * | 2020-01-16 | 2020-06-05 | 西安博望新材料科技有限公司 | Low-noise embedded fiber wearing layer and construction method thereof |
| CN114235542A (en) * | 2021-12-24 | 2022-03-25 | 扬州大学 | Tensile and shear test method for fiber-reinforced asphalt mortar porous plate strip |
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