CN110346283A - A kind of cover type colored road surface useful life longevity integrated evaluating method - Google Patents

A kind of cover type colored road surface useful life longevity integrated evaluating method Download PDF

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CN110346283A
CN110346283A CN201910648022.1A CN201910648022A CN110346283A CN 110346283 A CN110346283 A CN 110346283A CN 201910648022 A CN201910648022 A CN 201910648022A CN 110346283 A CN110346283 A CN 110346283A
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value
road surface
cover type
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colored road
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李强
翟志豪
孟元鹏
高磊
罗桑
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Nanjing Forestry University
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Abstract

The present invention discloses a kind of cover type colored road surface useful life longevity integrated evaluating method.The evaluation method tests cover type colored road surface combined type track plate test specimen by repeating rolling abrasion durability test, using remained on surface antiskid pendulum value, mass loss rate, total structure thickness decreasing value and the apparent picture pixels color value loss late of test specimen as cover type colored road surface useful life longevity evaluation index.By being ranked up to each evaluation index importance and scale assignment, its weighted value of itemizing is determined；The durability comprehensive score of cover type colored road surface is calculated further according to each subitem standards of grading and comprehensive score formula.It the problem of cover type colored road surface useful life longevity can not comprehensively be characterized the invention avoids single evaluation index, solves the case where different evaluation index outcome conflict, there is preferable scientific and accuracy, easy to operate, cost is relatively low, and universality is stronger.

Description

A kind of cover type colored road surface useful life longevity integrated evaluating method
Technical field
The present invention relates to a kind of cover type colored road surface useful life longevity integrated evaluating methods, belong to road test technology neck Domain.
Background technique
Driver travels on single, crowded road, inevitably will appear visual fatigue, is easy to lead to traffic thing Therefore.Enhance with continuous improvement of people's living standards and to the aesthetic standards of environment, then people are carried out with different colors Laying of roadway, colored road surface just come into being.Within the period of being on active service, the comprehensive function of natural environment and traffic load makes coloured silk Color road surface gradually appears diseases, the durabilities such as surface grinding, color grains loss, rutting deformation, color be thin out and substantially fails, Serious influence is caused on the safety of driving and comfort.Therefore, research tool is carried out to colored road surface useful life longevity It is of great importance.
Existing evaluation method is typically all to be directed to single aspect and evaluated, such as by pendulum friction coefficient determinator or Cornering ratio evaluates the decaying of colored road surface antiskid performance, or evaluates the abrasion of colored road surface by particle loss situation Durability.Above-mentioned evaluation method and index are excessively single, are only analyzed from a certain angle, and not enough science is based on comprehensively The test result of different evaluation index also tends to will appear conflicting situation.It therefore, can not be complete using single evaluation index Face and accurately reflection cover type colored road surface useful life longevity.Therefore, it is necessary to establish cover type colored road surface using durable Property integrated evaluating method, from different perspectives to cover type colored road surface carry out overall merit, avoiding single evaluation index can not The problem of comprehensively characterizing cover type colored road surface useful life longevity, also can solve the feelings of different evaluation index outcome conflict Condition.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and to provide a kind of cover type colored road surfaces to make With durability integrated evaluating method, this method is convenient for comprehensively evaluating the useful life longevity of cover type colored road surface.
The present invention solves above-mentioned technical problem using following technical scheme:
1. a kind of cover type colored road surface useful life longevity integrated evaluating method, which comprises the following steps:
Step 1, according to evaluated sub-layer asphalt pavement material the preparation of mix-design result it is corresponding (it is long × wide × It is thick) 300mm × 300mm × 50mm asphalt track plate test specimen；Then the height for being used as cover type colored road surface base-material Two components of performance bonding agent carry out mix 3-5min according to a certain percentage；The uniform base-material mixed liquor of mix is poured into pitch to mix Truck rut plate surface is closed, is scraped it using sawtooth from intermediate toward four side drawouts, forms uniform coating；Artificial color ceramic particle It is spread in uniform in base-material coating surface, until there is not colloid exposing phenomenon；Completion cover type colored road surface is compound after standing 6h The preparation of formula track plate test specimen.
Step 2, before carrying out durability test, respectively measure combined type track plate test specimen surface antiskid pendulum value BPN0、 Gross mass m0, total structure thickness H0With picture pixels color value C apparent at wheel path0。
The cover type colored road surface durability test test specimen prepared is put into conventional wheel rutting test machine by step 3, is carried out It repeats rolling and wears away durability test.Examination wheel ground connection pressure be 0.7MPa ± 0.05MPa, examination wheel the speed of travel be 42 times/min ± 1 time/min, test temperature is 25 DEG C, test period 1h.
Step 4, after carrying out durability test, again respectively measure combined type track plate test specimen wheel path at surface it is residual Stay antiskid pendulum value BPN1, residual gross mass m1, residual structural overall thickness H1With picture pixels residual color value apparent at wheel path C1。
Step 5, the mass loss rate m for calculating separately test specimen after testp, total structure thickness decreasing value Δ H and test specimen it is apparent Picture pixels color value loss late Cp；With remained on surface antiskid pendulum value BPN1, mass loss rate mp, total structure thickness decreasing value Δ H With the apparent picture pixels color value loss late C of test specimenpThis 4 parameters are evaluation index, respectively from antiskid performance, quality, structure Overall thickness and the aspect of apparent colour 4 evaluate the useful life longevity of cover type colored road surface.
Δ H=H0-H1 (2)
Step 6, according to industry specialists opinion, to remained on surface antiskid pendulum value BPN1, mass loss rate mp, total structure thickness The decreasing value Δ H and apparent picture pixels color value loss late C of test specimenpIt is successively sorted according to importance, according to ranking results This 4 evaluation index adjacencies are calculated separately with significance level Parameter Scale assignment and are spaced the relation value of item.
Step 7 constructs trip current according to the significance level parameters relationship value between evaluation index two-by-two, uses MATLAB Programming calculates separately the weighted value w of 4 evaluation indexes1、w2、w3And w4。
Step 8, the subitem standards of grading for establishing 4 evaluation indexes respectively evaluate 4 according to the test result of step 5 Index scores, the final durability comprehensive score that cover type colored road surface is calculated using comprehensive score formula:
Durability comprehensive score=remained on surface antiskid pendulum value BPN1Itemize score × its weight w that itemizes1+ mass loss rate mpItemize score × its weight w that itemizes2+ total structure thickness decreasing value Δ H subitem score × its weight w that itemizes3+ test specimen is apparently schemed Piece pixel color value loss late CpItemize score × its weight w that itemizes4 (4)
Further, in step 1, cover type colored road surface base-material mixed liquor coating with a thickness of 1.2mm, artificial color Ceramic particle dispenses area as the 75% of track plate test specimen area.
Further, in step 2 and step 4, according to " highway subgrade pavement on-the-spot test regulation " (JTGE60-2008) Middle T 0964-2008 method is measured multiple before and after repeating rolling abrasion durability test respectively using pendulum friction coefficient determinator The surface antiskid pendulum value BPN of box-like track plate test specimen0With remained on surface antiskid pendulum value BPN1；Measure weight respectively using electronic balance The gross mass m of combined type track plate test specimen before and after multiple rolling abrasion durability test0With residual gross mass m1；Using vernier caliper Measurement repeats the total structure thickness H of combined type track plate test specimen before and after rolling abrasion durability test respectively0It is total with residual structural Thickness H1。
Further, it in step 2 and step 4, is shot respectively using industrial digital camera and repeats rolling abrasion durability Digital image at the apparent wheel path of combined type track plate test specimen of test front and back；Color contrast intensification is carried out to image, by image Format is changed to bmp；Digital image is imported to Ubuntu operating system in batch, is analyzed using ImageMagick photo-editing software Digital image exports the color average C of each pixel in image0With residual color average value C1。
Further, step 6 specifically:
Step 6.1 defines remained on surface antiskid pendulum value BPN respectively1, mass loss rate mp, total structure thickness decreasing value Δ H With the apparent picture pixels color value loss late C of test specimenpThis corresponding significance level scale symbol of 4 evaluation indexes is k1, k2, k3 And k4.
Step 6.2 is remained on surface antiskid pendulum value BPN1, mass loss rate mp, total structure thickness decreasing value Δ H and test specimen Apparent picture pixels color value loss late CpThis 4 evaluation indexes design is identical, slightly important, it is obvious it is important, it is strong important and Absolutely essential 5 kinds different significance level parameters, invite several industry specialists to fill in opinionaire, evaluate according to significance level 4 Index progress successively relatively and is sorted.
Step 6.3, according to proportion quotiety table, to it is identical, slightly important, obvious it is important, it is strong important and it is absolutely essential this 5 The scale of kind significance level parameter is assigned a value of 1.0,1.2,1.4,1.6 and 1.8 respectively.
Step 6.4 calculates 4 evaluation index adjacencies and is spaced the relation value of item.Adjacency relation value is according to industry The significance level Parameter Scale assignment that expert opinion table obtains；Interval n-th-trem relation n value is adjacency significance level Parameter Scale assignment Product；Multiple interval items if it exists, then for according to the continued product of multiple adjacency significance level Parameter Scale assignment.
Further, step 7 specifically:
Step 7.1, setting matrix p4×4, define matrix element Aij(i=1...n, j=1...n, n are index number) is to comment Valence index kiTo evaluation index kjSignificance level relation value.As i=j, Aij=1；As i < j, for positive comparison, press Value is calculated according to step 6.4；It is reverse contrast as i > j, then value is the inverse of positive comparison value.
Step 7.2, maximum eigenvalue feature vector corresponding with its using MATLAB program calculation trip current, will be special Remained on surface antiskid pendulum value BPN is obtained after sign vector standardization1, mass loss rate mp, total structure thickness decreasing value Δ H and test specimen Apparent picture pixels color value loss late CpThe weighted value w of this 4 evaluation indexes1、w2、w3And w4。
Further, in step 8, it is specified that remained on surface antiskid pendulum value BPN1Itemize numerical value should between 75-42BPN, It, which is itemized, is scored at 10-0 points；BPN1When less than or equal to 42BPN, that is, think that cover type colored road surface antiskid performance is unable to reach most Low requirement is scored at 0 point；BPN1When more than or equal to 75BPN, that is, thinks that cover type colored road surface antiskid performance is fully met and want It asks, is scored at 10 points.Mass loss rate mpNumerical value of itemizing should itemize between 0-0.8% and be scored at 10-0 points；mpGreater than etc. When 0.8%, that is, thinks that the loss of cover type colored road surface quality of materials is excessive, should not continue to use, be scored at 0 point.Structure is total Thickness decreasing value Δ H itemizes numerical value should be between 0-0.25cm, and subitem is scored at 10-0 points；When Δ H is more than or equal to 0.25cm, Think that cover type colour road surface structure thickness loss is excessive, should not continue to use, be scored at 0 point.The apparent picture pixels of test specimen Color value loss late CpNumerical value of itemizing should itemize between 0-80% and be scored at 10-0 points；CpWhen more than or equal to 80%, that is, recognize It is excessive for cover type colored road surface colour loss, color function has been lost, should not have been continued to use, has been scored at 0 point.
Further, in step 8, the subitem standards of grading and repetition of 4 evaluation indexes according to claim 7 Rolling wears away durability test as a result, determining the subitem score of each evaluation index using linear difference method.
Compared with prior art, the invention has the following advantages:
A kind of cover type colored road surface useful life longevity integrated evaluating method, possesses the evaluation index of comprehensive and reasonable System and specific evaluation method.It is total to combine residual antiskid pendulum value, mass loss rate, structure for opinion based on industry specialists 4 aspect subitem evaluation indexes of thickness decreasing value and the apparent picture pixels color value loss late of test specimen, with the step analysis of science Method calculates weight shared by each subitem evaluation index, calculates making for cover type colored road surface finally by comprehensive score formula With durability comprehensive score.It is resistance within the period of being on active service that repetition rolling simulation color road surface is simulated based on standard track testing equipment Long property decaying, equipment is easy to get, and easy to operate, universality is strong.By industrial camera and computer software to apparent color durability It is analyzed, simple and quick, analysis result science is accurate.
Specific embodiment
Test macro of the present invention and method are clearly and completely described below.
The instrument and material that this example uses include: 1. rolling molding machine one.2.SYD-0719A type automatic vehicle tracking test One, instrument.3. industrial digital camera one.4. one, electronic computer.5. electronic balance one.6. vernier caliper one.7. pendulum Formula frictionmeter one.8. basalt aggregate.9. 70# matrix pitch.10. high-performance adhesive.
Step 1, using AC-13 type mineral aggregate gradation, according to " standard specification for construction and acceptance of highway asphalt pavement " " JTG F40- 2004 " gradation design is carried out.Using basalt aggregate and 70# matrix pitch, optimum oil-stone ratio 5.2%.According to " highway engineering Pitch and Asphalt Mixture Experiment regulation " " JTG E20-2004 " T 0703-2011, makees 300mm × 300mm using rolling legal system The track plate test specimen of × 50mm, test specimen after molding place demoulding after 12h at normal temperature.As cover type colored road surface base-material The A of high-performance adhesive, B component carries out mixing and stirring 3-5 minutes according to a certain percentage, it is ensured that mix is uniform, color is consistent, does not have Sink to the bottom phenomenon.The uniform mixed liquor of mix is poured on track plate surface of test piece, with zigzag sleaker first equably toward four All drawouts, are then scraped in a manner of retrogressing backward, guarantee that mixed liquor is evenly distributed on track plate test specimen, with a thickness of 1.2mm.? Artificial color ceramic particle is spread in uniform in colloid surface, and guarantee does not occur colloid exposing phenomenon, dispenses area as the examination of track plate The 75% of part area.By the static 6h of the test specimen of forming, the preparation of cover type colored road surface combined type track plate test specimen is completed.
Step 2, the gross mass that combined type track plate test specimen is surveyed with electronic balance, are denoted as m0；According to " highway subgrade pavement is existing Field test procedure " " JTG E60-2008 " T 0964-2008 pendulum friction coefficient determinator measurement combined type track plate test specimen Surface antiskid pendulum value, be denoted as BPN0；Using the total structure thickness of vernier caliper measurement combined type track plate test specimen, it is denoted as H0；It adopts With the digital image at the apparent wheel path of industrial digital camera shooting combined type track plate test specimen, image is imported in batch Ubuntu operating system carries out corresponding color burn comparison to image, picture format is changed to bmp, names are as follows: test specimen 1.bmp opens a terminal in Ubuntu system, inputs convert test specimen 1.bmp-depth 8txt:A.txt, obtains test specimen 1 Colouring information A.txt, input 1 A.txt > A1.txt and perl-ne ' print of head-n " $ 1 n " if/^ (d+, d+: ((d+), (d+), (d+)) .+) 2 > of $/&& $=3 < of 55&& $=200&& $, 4 A.txt > > A1.txt of <=200 ', from And obtain red pixel colouring information, then C is denoted as using red pixel value in ImageMagick output image0。
The cover type colored road surface combined type track plate test specimen prepared is put into the automatic track of SYD-0719A type by step 3 In tester, carry out repeating rolling abrasion durability test after 4h is kept the temperature under the conditions of 25 DEG C of temperature.Control examination wheel ground connection pressure For 0.75MPa ± 0.05MPa, the examination wheel speed of travel is 42 times/min ± 1 time/min, and test temperature is 25 DEG C, test period 1h.
Step 4, repeat rolling abrasion durability test after the completion of, measure test specimen wheelmark again according to the method for step 2 Apparent picture residual is red at remained on surface antiskid pendulum value with place, residual test specimen gross mass, residual structural overall thickness and wheel path Color pixel value, is denoted as BPN respectively1、m1、H1And C1。
Step 5, using mass loss rate, structural thickness reduced value, pixel color value loss late and residual antiskid pendulum value as Evaluate the subitem evaluation index of cover type colored road surface durability.Test specimen after repetition rolling abrasion test is calculated separately according to the following formula Mass loss rate mp, total structure thickness decreasing value Δ H and the apparent picture pixels color value loss late C of test specimenp, the results are shown in Table 1.
Δ H=H0-H1 (2)
The subitem evaluation index test result of table 1
Step 6, according to industry specialists opinion, to remained on surface antiskid pendulum value BPN1, mass loss rate mp, total structure thickness The decreasing value Δ H and apparent picture pixels color value loss late C of test specimenpIt is successively sorted according to importance, according to ranking results This 4 evaluation index adjacencies are calculated separately with significance level Parameter Scale assignment and are spaced the relation value of item.Specifically include with Lower sub-step:
Step 6.1 defines remained on surface antiskid pendulum value BPN respectively1, mass loss rate mp, total structure thickness decreasing value Δ H With the apparent picture pixels color value loss late C of test specimenpThis corresponding significance level scale symbol of 4 evaluation indexes is k1, k2, k3 And k4.
Step 6.2 is remained on surface antiskid pendulum value BPN1, mass loss rate mp, total structure thickness decreasing value Δ H and test specimen Apparent picture pixels color value loss late CpThis 4 evaluation indexes design is identical, slightly important, it is obvious it is important, it is strong important and Absolutely essential 5 kinds different significance level parameters, invite several industry specialists to fill in opinionaire, as shown in table 2.According to significance level It successively relatively and sorts to 4 evaluation indexes progress.Data craft's investigation result, select most identical opinions as a result, such as table 3 It is shown.It is k1 > k2 > k3 > k4 according to sequential arrangement is not subtracted after 4 evaluation indexes are compared.
2 expert investigation table of table
3 expert investigation result of table
Step 6.3, according to proportion quotiety table, to it is identical, slightly important, obvious it is important, it is strong important and it is absolutely essential this 5 The scale of kind significance level parameter is assigned a value of 1.0,1.2,1.4,1.6 and 1.8 respectively.
Step 6.4 calculates 4 evaluation index adjacencies and is spaced the relation value of item.According to expert opinion table be it is above-mentioned not Subtract adjacent element relationship assignment in order, the relationship between k1 and k2 is indicated with L1, the relationship of k2 and k3 are indicated with L2, with L3 table The relationship for showing k3 and k4, then have { L1；L2；L3=1.6；1.4；1.2 } wherein, the relation value of item is spaced by the relation value of adjacency Product determines, it is known that the relation value that the relation value that the relation value of k1 and k3 is 2.24, k2 and k4 is 1.68, k1 and k4 is 2.688.
Step 7 constructs trip current according to the significance level parameters relationship value between evaluation index two-by-two, uses MATLAB Mathematical software programs the weighted value w for calculating separately 4 evaluation indexes1、w2、w3And w4.Specifically include following sub-step:
Step 7.1, setting matrix p4×4, define matrix element Aij(i=1...n, j=1...n, n are index number) is to comment Valence index kiTo evaluation index kjSignificance level relation value.As i=j, Aij=1；As i < j, for positive comparison, press Value is calculated according to step 6.4；It is reverse contrast as i > j, then value is the inverse of positive comparison value.The following institute of matrix Show:
Step 7.2 by the maximum eigenvalue of MATLAB calculating matrix is λmax=4, the corresponding feature of maximum eigenvalue to Amount is [0.7337,0.5225,0.3463,0.2886].After being standardized, as according to the remained on surface for not subtracting sequential arrangement Antiskid pendulum value BPN1, mass loss rate mp, total structure thickness decreasing value Δ H and the apparent picture pixels color value loss late C of test specimenp The corresponding weighted value w of this 4 evaluation indexes1、w2、w3、w4, i.e., { k1, k2, k3, k4 } weight be [0.39,0.28,0.18, 0.15]。
Step 8, the subitem standards of grading for establishing 4 evaluation indexes: remained on surface antiskid pendulum value BPN1Itemizing numerical value should be Between 75-42BPN, subitem is scored at 10-0 points；BPN1When less than or equal to 42BPN, that is, think cover type colored road surface antiskid Performance is unable to reach minimum requirements, is scored at 0 point；BPN1When more than or equal to 75BPN, that is, think cover type colored road surface skid resistance Requirement can be fully met, is scored at 10 points.Mass loss rate mpNumerical value of itemizing should itemize between 0-0.8% and be scored at 10- 0 point；mpWhen more than or equal to 0.8%, that is, thinks that the loss of cover type colored road surface quality of materials is excessive, should not continue to use, score It is 0 point.Total structure thickness decreasing value Δ H itemizes numerical value should be between 0-0.25cm, and subitem is scored at 10-0 points；Δ H is greater than When equal to 0.25cm, that is, thinks that cover type colour road surface structure thickness loss is excessive, should not continue to use, be scored at 0 point.Test specimen Apparent picture pixels color value loss late CpNumerical value of itemizing should itemize between 0-80% and be scored at 10-0 points；CpIt is more than or equal to When 80%, that is, thinks that cover type colored road surface colour loss is excessive, lost color function, should not continue to use, be scored at 0 Point.Each subitem evaluation index standards of grading are as shown in table 4.
The subitem evaluation index standards of grading of table 4
4 index scores 10-8 8-6 6-4 4-2 2-0 0
Remained on surface antiskid pendulum value BPN1 > 75 75-67 67-58 58-50 50-42 < 42
Mass loss rate (%) 0-0.16 0.16-0.32 0.32-0.48 0.48-0.64 0.64-0.8 > 0.8
Total structure thickness reduced value (cm) 0-0.05 0.05-0.1 0.1-0.15 0.15-0.2 0.2-0.25 > 0.25
Pixel color loss late (%) 0-16 16-32 32-48 48-64 64-80 > 80
Using linear interpolation method, scored respectively 4 evaluation indexes according to the test result of table 1.Finally using comprehensive The durability comprehensive score that cover type colored road surface is calculated in scoring formula is closed, specific score is as shown in table 5.
Durability comprehensive score=remained on surface antiskid pendulum value BPN1Itemize score × its weight w that itemizes1+ mass loss rate mpItemize score × its weight w that itemizes2+ total structure thickness decreasing value Δ H subitem score × its weight w that itemizes3+ test specimen is apparently schemed Piece pixel color value loss late CpItemize score × its weight w that itemizes4
The subitem of table 5 and comprehensive score
Anti-slip index score Quality index score Thickness indication score Pixel color index score Durability comprehensive score
6.250 7.125 5.000 6.375 6.290
In summary, cover type colored road surface useful life longevity integrated evaluating method proposed by the invention, combines residual 4 antiskid pendulum value, mass loss rate, total structure thickness decreasing value and the apparent picture pixels color value loss late of test specimen aspect subitems Evaluation index comprehensively evaluates cover type colored road surface useful life longevity by comprehensive score method.Single evaluation is avoided to refer to The problem of mark can not comprehensively characterize cover type colored road surface useful life longevity, solves the feelings of different evaluation index outcome conflict Condition has preferable scientific and accuracy, and easy to operate, cost is relatively low, and universality is stronger.
In addition to the implementation, the present invention can also have other embodiments.It is all to use equivalent substitution or equivalent transformation shape At technical solution, fall within the scope of protection required by the present invention.

Claims (8)

1. a kind of cover type colored road surface useful life longevity integrated evaluating method, which comprises the following steps:
Step 1 prepares corresponding (length × width x thickness) according to the mix-design result of evaluated sub-layer asphalt pavement material 300mm × 300mm × 50mm asphalt track plate test specimen；Then the high-performance for being used as cover type colored road surface base-material Two components of bonding agent carry out mix 3-5min according to a certain percentage；The uniform base-material mixed liquor of mix is poured into asphalt Track plate surface is scraped it from intermediate toward four side drawouts using sawtooth, forms uniform coating；Artificial color ceramic particle is uniform It is spread in base-material coating surface, until there is not colloid exposing phenomenon；Cover type colored road surface combined type vehicle is completed after standing 6h The preparation of rut plate test specimen.
Step 2, before carrying out durability test, respectively measure combined type track plate test specimen surface antiskid pendulum value BPN0, gross mass m0, total structure thickness H0With picture pixels color value C apparent at wheel path0。
The cover type colored road surface durability test test specimen prepared is put into conventional wheel rutting test machine by step 3, is repeated Rolling wears away durability test.Examination wheel ground connection pressure be 0.7MPa ± 0.05MPa, examination wheel the speed of travel be 42 times/min ± 1 time/ Min, test temperature are 25 DEG C, test period 1h.
Step 4, after carrying out durability test, the remained on surface measured at combined type track plate test specimen wheel path respectively again is anti- Sliding value BPN1, residual gross mass m1, residual structural overall thickness H1With picture pixels residual color value C apparent at wheel path1。
Step 5, the mass loss rate m for calculating separately test specimen after testp, total structure thickness decreasing value Δ H and the apparent picture picture of test specimen Plain color value loss late Cp；With remained on surface antiskid pendulum value BPN1, mass loss rate mp, total structure thickness decreasing value Δ H and test specimen Apparent picture pixels color value loss late CpThis 4 parameters are evaluation index, respectively from antiskid performance, quality, total structure thickness The useful life longevity of cover type colored road surface is evaluated with 4 aspects of apparent colour.
Δ H=H0-H1 (2)
Step 6, according to industry specialists opinion, to remained on surface antiskid pendulum value BPN1, mass loss rate mp, total structure thickness reduce It is worth the Δ H and apparent picture pixels color value loss late C of test specimenpIt is successively sorted according to importance, according to ranking results and again It wants extent index scale assignment to calculate separately this 4 evaluation index adjacencies and is spaced the relation value of item.
Step 7 constructs trip current according to the significance level parameters relationship value between evaluation index two-by-two, uses MATLAB mathematics Software programming calculates separately the weighted value w of 4 evaluation indexes1、w2、w3And w4。
Step 8, the subitem standards of grading for establishing 4 evaluation indexes, according to the test result of step 5 respectively to 4 evaluation indexes It scores, the final durability comprehensive score that cover type colored road surface is calculated using comprehensive score formula:
Durability comprehensive score=remained on surface antiskid pendulum value BPN1Itemize score × its weight w that itemizes1+ mass loss rate mpPoint Item score × its weight w that itemizes2+ total structure thickness decreasing value Δ H subitem score × its weight w that itemizes3The apparent picture picture of+test specimen Plain color value loss late CpItemize score × its weight w that itemizes4 (4) 。
2. cover type colored road surface useful life longevity integrated evaluating method as described in claim 1, it is characterised in that: in step In 1, cover type colored road surface base-material mixed liquor coating with a thickness of 1.2mm, the spreading area of artificial color ceramic particle is vehicle The 75% of rut plate test specimen area.
3. cover type colored road surface useful life longevity integrated evaluating method as described in claim 1, it is characterised in that: in step 2 and step 4 in, according to T 0964-2008 method in " highway subgrade pavement on-the-spot test regulation " (JTG E60-2008), use The surface that pendulum friction coefficient determinator measures repetition rolling abrasion durability test front and back combined type track plate test specimen respectively is anti- Sliding value BPN0With remained on surface antiskid pendulum value BPN1；It is measured respectively using electronic balance before repeating rolling abrasion durability test The gross mass m of combined type track plate test specimen afterwards0With residual gross mass m1；It is resistance to measure repetition rolling abrasion respectively using vernier caliper The total structure thickness H of long property test front and back combined type track plate test specimen0With residual structural overall thickness H1。
4. cover type colored road surface useful life longevity integrated evaluating method as described in claim 1, it is characterised in that: in step 2 and step 4 in, using industrial digital camera respectively shoot repeat rolling abrasion durability test before and after combined type track plate test specimen Digital image at apparent wheel path；Color contrast intensification is carried out to image, picture format is changed to bmp；By digital image at It criticizes and imports Ubuntu operating system, digital image is analyzed using ImageMagick photo-editing software, exports each pixel in image The color average C of point0With residual color average value C1。
5. cover type colored road surface useful life longevity integrated evaluating method as described in claim 1, which is characterized in that the step Rapid 6 specifically:
Step 6.1 defines remained on surface antiskid pendulum value BPN respectively1, mass loss rate mp, total structure thickness decreasing value Δ H and examination The apparent picture pixels color value loss late C of partpThis corresponding significance level scale symbol of 4 evaluation indexes be k1, k2, k3 and k4。
Step 6.2 is remained on surface antiskid pendulum value BPN1, mass loss rate mp, total structure thickness decreasing value Δ H and test specimen it is apparent Picture pixels color value loss late CpThis 4 evaluation index designs are identical, slightly important, obvious important, strong important and absolute Important 5 kinds different significance level parameters, invite several industry specialists to fill in opinionaire, according to significance level to 4 evaluation indexes Progress successively relatively and is sorted.
Step 6.3, according to proportion quotiety table, to this identical, slightly important, obvious important, strong important and absolutely essential 5 kinds of weights The scale of extent index is wanted to be assigned a value of 1.0,1.2,1.4,1.6 and 1.8 respectively.
Step 6.4 calculates 4 evaluation index adjacencies and is spaced the relation value of item.Adjacency relation value is according to industry specialists The significance level Parameter Scale assignment that opinionaire obtains；Interval n-th-trem relation n value is multiplying for adjacency significance level Parameter Scale assignment Product；Multiple interval items if it exists, then for according to the continued product of multiple adjacency significance level Parameter Scale assignment.
6. cover type colored road surface useful life longevity integrated evaluating method as described in claim 1, which is characterized in that the step Rapid 7 specifically:
Step 7.1, setting matrix p4×4, define matrix element Aij(i=1...n, j=1...n, n are index number) is evaluation index kiTo evaluation index kjSignificance level relation value.As i=j, Aij=1；As i < j, compared to be positive, according to step 6.4 calculate value；It is reverse contrast as i > j, then value is the inverse of positive comparison value.
Step 7.2, maximum eigenvalue feature vector corresponding with its using MATLAB program calculation trip current, by feature to Remained on surface antiskid pendulum value BPN is obtained after gauge generalized1, mass loss rate mp, total structure thickness decreasing value Δ H and test specimen it is apparent Picture pixels color value loss late CpThe weighted value w of this 4 evaluation indexes1、w2、w3And w4。
7. cover type colored road surface useful life longevity integrated evaluating method as described in claim 1, it is characterised in that: in step , it is specified that remained on surface antiskid pendulum value BPN in 81Numerical value of itemizing should itemize between 75-42BPN and be scored at 10-0 points；BPN1It is small When being equal to 42BPN, that is, thinks that cover type colored road surface antiskid performance is unable to reach minimum requirements, be scored at 0 point；BPN1It is greater than When equal to 75BPN, that is, thinks that cover type colored road surface antiskid performance fully meets requirement, be scored at 10 points.Mass loss rate mp Numerical value of itemizing should itemize between 0-0.8% and be scored at 10-0 points；mpWhen more than or equal to 0.8%, that is, think cover type colour Ground surface material mass loss is excessive, should not continue to use, and is scored at 0 point.Total structure thickness decreasing value Δ H itemizes numerical value should be in 0- Between 0.25cm, subitem is scored at 10-0 points；When Δ H is more than or equal to 0.25cm, that is, think that cover type colour road surface structure is thick Degree loss is excessive, should not continue to use, be scored at 0 point.The apparent picture pixels color value loss late C of test specimenpItemizing numerical value should be Between 0-80%, subitem is scored at 10-0 points；CpWhen more than or equal to 80%, that is, think cover type colored road surface colour loss mistake Greatly, color function has been lost, should not have been continued to use, has been scored at 0 point.
8. cover type colored road surface useful life longevity integrated evaluating method as described in claim 1, it is characterised in that: in step In 8, the subitem standards of grading of 4 evaluation indexes according to claim 7 and repeat rolling abrasion durability test as a result, The subitem score of each evaluation index is determined using linear difference method.
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