CN106012745B - A kind of skid pad asphalt and skid pad asphalt concrete pavement - Google Patents
A kind of skid pad asphalt and skid pad asphalt concrete pavement Download PDFInfo
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- CN106012745B CN106012745B CN201610632491.0A CN201610632491A CN106012745B CN 106012745 B CN106012745 B CN 106012745B CN 201610632491 A CN201610632491 A CN 201610632491A CN 106012745 B CN106012745 B CN 106012745B
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- asphalt
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- rubble
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/32—Coherent pavings made in situ made of road-metal and binders of courses of different kind made in situ
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/021—Agglomerated materials, e.g. artificial aggregates agglomerated by a mineral binder, e.g. cement
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/0076—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials characterised by the grain distribution
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—Bituminous materials, e.g. tar, pitch
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Road Paving Structures (AREA)
Abstract
The present invention proposes a kind of skid pad asphalt, including the rubble 50~74% of following weight content, sand material 14~42% and miberal powder 8~12%；A kind of skid pad asphalt concrete pavement is proposed again, is covered with bottom, basic unit, intermediate layer and top layer successively on ground, and bottom is the thick AC 20 of 5 ~ 7cm（H）Bituminous concrete, basic unit are the thick AC 16 of 3 ~ 5cm（H）Bituminous concrete, intermediate layer are the thick AC 13 of 3 ~ 5cm（H）Bituminous concrete, top layer are the thick AC 13 of 3 ~ 5cm（H）Bituminous concrete；Each bituminous concrete is uniformly mixed by pitch and skid pad with asphalt, and bitumen aggregate ratio is respectively：AC‑13（H）Bituminous concrete 5.6 ~ 6.2%；AC‑16（H）Bituminous concrete 5.5 ~ 5.9%；AC‑20（H）Bituminous concrete 5.4 ~ 5.8%.The concrete road surface of the present invention can meet the requirement of high speed circuit, bend and sty in skid pad comprehensively.
Description
Technical field
The present invention relates to pavement construction technical field, specifically can be used for the asphalt of laying test run field road surface, and
The asphalt concrete pavement for meeting test run field road surface requirement laid using this asphalt.
Background technology
Skid pad high speed circuit horizontal curve is Mike's Kang Naer curves, and cross section Curve is designed as cubic parabola,
Curved design inclination maximum is 47.08 degree, and the upper and lower maximum discrepancy in elevation is divided into low speed carriage way, middle Fast Moving Vehicle Lane from down to up up to 7.6 meters
And speed way, wherein speed way desin speed 180km/h.This project difficulty of construction is big, complex procedures.The car of skid pad
Driving to high speed circuit corner does not take brake measure generally, passes through bend at a relatively high speed.Turning speed is faster, angle speed
Degree is bigger, and centrifugal force is also bigger.So in order to offset centrifugal force, the frictional force and wheel between vehicle and bituminous paving are lateral
Frictional force will increase；And because Vehicle Speed is very fast, the flatness requirement that road surface is contacted to wheel is higher.In terms of construction
From the point of view of, due to the influence of Blaps femaralis, the vertical consolidation effect of traction road roller road pavement is poor, and this will be to bituminous paving
Shear behavior impacts.
The research of scientific research institutions' road pavement structure and material focuses primarily upon highway both at home and abroad at present, generally public at a high speed
There is higher linear design standard on road, is generally not present the bend problem of larger superelevation, and the research to bend bituminous paving is main
Concentrate on construction technology, safety etc., the research to skid pad high speed circuit bend sty asphalt pavement material and structure
It is considerably less.Therefore, it is very necessary to invent for the compact type asphalt mixture of skid pad high speed circuit bend sty.
The content of the invention
The purpose of the present invention is to propose to a kind of skid pad asphalt, by its preparation bituminous concrete its can protect
Hold the stability on inclined-plane, prevent from flowing downward, and can on the premise of high-temperature stability is ensured, have higher construction and
Yi Xing, density, water stability and shear behavior；A kind of skid pad asphalt concrete pavement is proposed again, and it disclosure satisfy that test run
The requirement of high speed circuit, bend and sty, can be used as the various road surfaces in skid pad in.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of skid pad asphalt, it is characterised in that include each component of following weight content：Rubble 50~
74%th, sand material 14~42% and miberal powder 8~12%.
The rubble is a kind of material or any 2 to 3 kinds of mixing in basalt, diabase, limestone and granite
Thing or four kinds of mixture, rubble all pass through 26.5mm square hole screens；Sand material is the mixing of river sand and Machine-made Sand, and sand material is whole
Pass through 1.18mm square hole screens；The miberal powder be agstone, calcium hydroxide and cement in one kind or any two kinds of mixture,
Or three kinds of mixture, miberal powder all pass through 0.075mm square hole screens.
Its mineral aggregate gradation scope is：The screen size of square hole screen be respectively 26.5mm, 19mm, 16mm, 13.2mm, 9.5mm,
When 4.75mm, 2.36mm, 1.18mm, 0.6mm, 0.3mm, 0.15mm, 0.075mm, the percent of pass of corresponding each square hole screen is successively
For 100%, 95 ~ 100%, 91 ~ 100%, 86 ~ 100%, 75 ~ 92%, 55 ~ 80%, 40 ~ 65%, 26 ~ 50%, 18 ~ 34%, 13 ~ 23%, 10 ~
16%、8~12%。
A kind of AC-13 is proposed on the basis of such scheme（H）Asphalt, it includes each group of following weight content
Point：Rubble 50~70%, sand material 18~42% and miberal powder 8~12%, rubble all pass through 16mm square hole screens；Its mineral aggregate gradation scope
For：The screen size of square hole screen be respectively 16mm, 13.2mm, 9.5mm, 4.75mm, 2.36mm, 1.18mm, 0.6mm, 0.3mm,
When 0.15mm, 0.075mm, the percent of pass of corresponding each square hole screen is followed successively by 100%, 95 ~ 100%, 78 ~ 92%, 62 ~ 80%, 45 ~
65%、30~50%、20~34%、15~23%、10~16%、8~12%。
A kind of AC-16 is proposed again（H）Asphalt, it includes each component of following weight content：Rubble 52~74%,
Sand material 14~40% and miberal powder 8~12%, rubble all pass through 19mm square hole screens；Its mineral aggregate gradation scope is：The sieve aperture of square hole screen
Size be respectively 19mm, 16mm, 13.2mm, 9.5mm, 4.75mm, 2.36mm, 1.18mm, 0.6mm, 0.3mm, 0.15mm,
During 0.075mm, the percent of pass of corresponding each square hole screen is followed successively by 100%, 95 ~ 100%, 90 ~ 96%, 76 ~ 88%, 58 ~ 75%, 40 ~
62%、26~48%、18~32%、14~22%、10~16%、8~12%。
Reintroduce a kind of AC-20（H）Asphalt, it includes each component of following weight content：Rubble 54~74%,
Sand material 14~38% and miberal powder 8~12%, rubble all pass through 26.5mm square hole screens；Its mineral aggregate gradation scope is：The sieve of square hole screen
Hole size be respectively 26.5mm, 19mm, 16mm, 13.2mm, 9.5mm, 4.75mm, 2.36mm, 1.18mm, 0.6mm, 0.3mm,
When 0.15mm, 0.075mm, the percent of pass of corresponding each square hole screen is followed successively by 100%, 95 ~ 100%, 91 ~ 98%, 86 ~ 95%, 75 ~
87%、55~75%、40~60%、26~46%、18~30%、13~21%、10~16%、8~12%。
Prioritization scheme is：The sand material is the mixture of river sand and Machine-made Sand, the weight ratio of river sand and Machine-made Sand for 1 ~
1.5:1。
The present invention also proposes a kind of skid pad asphalt concrete pavement, and bottom is covered with successively by prior art on ground
Layer, basic unit, intermediate layer and top layer, bottom are the thick AC-20 of 5 ~ 7cm（H）Bituminous concrete is paved into, and basic unit is the thick AC- of 3 ~ 5cm
16（H）Bituminous concrete is paved into, and intermediate layer is the thick AC-13 of 3 ~ 5cm（H）Bituminous concrete is paved into, and top layer is 3 ~ 5cm thick
AC-13（H）Bituminous concrete is paved into.
The AC-13（H）Bituminous concrete is by pitch and above-mentioned AC-13（H）Asphalt is mixed, its bitumen aggregate ratio
For 5.6 ~ 6.2%.
The AC-16（H）Bituminous concrete is by pitch and above-mentioned AC-16（H）Asphalt is mixed, its bitumen aggregate ratio
For 5.5 ~ 5.9%.
The AC-20（H）Bituminous concrete is by pitch and above-mentioned AC-20（H）Asphalt is mixed, its bitumen aggregate ratio
For 5.4 ~ 5.8%.
Further prioritization scheme, the needle penetration requirement of the pitch are：In 25 DEG C of temperature, loading 100g, injection time 5s
Under the conditions of, the depth that standard pin vertically penetrates bitumen samples is 60 ~ 70（0.1mm）.
The present invention has substantive distinguishing features following prominent and significant progress：
1st, skid pad of the invention is with employing more river sand and miberal powder in asphalt so that the pitch of formation mixes
Solidifying soil can keep its stability on inclined-plane, prevent from flowing downward, and be easy to traction road roller to hang down bend sty again
Vertical compression is real, so that pellet arrangement in curved road surface surface is uniform, not loosely, does not isolate, flatness and compactness can obtain effectively
Ensure.
2nd, skid pad asphalt concrete pavement of the invention can effectively meet high speed circuit, bend and abrupt slope in skid pad
The requirement in face, safe and reliable test site is provided to carry out the vehicle of properties test.
Brief description of the drawings
Fig. 1 is the gradation curve of mineral aggregate figure of the skid pad asphalt of embodiment 1.
Fig. 2 is the gradation curve of mineral aggregate figure of the skid pad asphalt of embodiment 2.
Fig. 3 is the gradation curve of mineral aggregate figure of the skid pad asphalt of embodiment 3.
Fig. 4 is the structural representation of the skid pad asphalt concrete pavement of the present invention.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
Embodiment 1
A kind of skid pad asphalt, it includes each component of following weight content：Rubble 60.7%, sand material 28.7%
With miberal powder 10.6%.
Miberal powder is the mixture of limestone dust and cement, and the weight ratio of limestone dust and cement is 9：1, miberal powder is whole
Pass through 0.075mm square hole screens；Sand material is the mixture of river sand machine and sand processed, and the weight ratio of river sand and Machine-made Sand is 1:1, sand material is complete
Portion passes through 1.18mm square hole screens；Rubble is all basalt by 16mm square hole screens and doleritic mixing after Mechanical Crushing
Thing.
The formate gradation composition of the asphalt of the present embodiment is：The screen size of square hole screen be respectively 16mm, 13.2mm,
When 9.5mm, 4.75mm, 2.36mm, 1.18mm, 0.6mm, 0.3mm, 0.15mm, 0.075mm, corresponding each square hole screen passes through
Rate is followed successively by 100%, 99%, 84.7%, 66.1%, 51.7%, 39.3%, 24.9%, 18.1%, 14.1%, 10.6%, and its mineral aggregate gradation is bent
Line is shown in Fig. 1.
Embodiment 2
A kind of skid pad asphalt, it includes each component of following weight content：Rubble 61.1%, sand material 28.6%
With miberal powder 10.3%.
Miberal powder is the mixture of limestone dust, calcium hydroxide and cement, the weight ratio of limestone dust, calcium hydroxide and cement
Example is 8：1：1, miberal powder all passes through 0.075mm square hole screens；Sand material is the mixture of river sand and Machine-made Sand, river sand and Machine-made Sand
Weight ratio is 1.2:1, sand material all passes through 1.18mm square hole screens；Rubble is all by 19mm square hole screen stones after Mechanical Crushing
The mixture of limestone and granite.
The formate gradation composition of the asphalt of the present embodiment is：The screen size of square hole screen be respectively 19mm, 16mm,
When 13.2mm, 9.5mm, 4.75mm, 2.36mm, 1.18mm, 0.6mm, 0.3mm, 0.15mm, 0.075mm, corresponding each square hole screen
Percent of pass be followed successively by 100%, 95.8%, 93.7%, 82.7%, 66.7%, 51.4%, 38.9%, 25.3%, 17.6%, 13.7%,
10.3%, its gradation curve of mineral aggregate is shown in Fig. 2.
Embodiment 3
A kind of skid pad asphalt, it includes each component of following weight content：Rubble 60.4%, sand material 29.1%
With miberal powder 10.5%.
Miberal powder is calcium hydroxide, all passes through 0.075mm square hole screens；Sand material is the mixture of river sand and Machine-made Sand, river sand with
The weight ratio of Machine-made Sand is 1.5:1, sand material all passes through 1.18mm square hole screens；Rubble is all to pass through after Mechanical Crushing
The basalt of 26.5mm square hole screens.
The formate gradation composition of the asphalt of the present embodiment is：The screen size of square hole screen be respectively 26.5mm, 19mm,
It is corresponding each when 16mm, 13.2mm, 9.5mm, 4.75mm, 2.36mm, 1.18mm, 0.6mm, 0.3mm, 0.15mm, 0.075mm
The percent of pass of square hole screen is followed successively by 100%, 98.1%, 95.7%, 93.9%, 81.6%, 67.7%, 52.4%, 39.6%, 25.2%,
17.7%th, 13.8%, 10.5%, its gradation curve of mineral aggregate is shown in Fig. 3.
Embodiment 4
With reference to figure 4, a kind of skid pad asphalt concrete pavement, bottom is covered with using prior art successively on ground 1
2nd, basic unit 3, intermediate layer 4 and top layer 5, bottom 2 are the thick AC-20 of 6cm（H）Bituminous concrete is paved into, and basic unit 3 is the thick AC- of 4cm
16（H）Bituminous concrete is paved into, and intermediate layer 4 is the thick AC-13 of 4cm（H）Bituminous concrete is paved into, and top layer 5 is the thick AC- of 4cm
13（H）Bituminous concrete is paved into.
The AC-13（H）Bituminous concrete is mixed by the skid pad of pitch and embodiment 1 with asphalt, its
Bitumen aggregate ratio is 5.9%.
The AC-16（H）Bituminous concrete is mixed by the skid pad of pitch and embodiment 2 with asphalt, its
Bitumen aggregate ratio is 5.6%.
The AC-20（H）Bituminous concrete is mixed with asphalt as the skid pad described in pitch and embodiment 3 and made
Into its bitumen aggregate ratio is 5.6%.
The needle penetration of the pitch is：Under the conditions of 25 DEG C of temperature, loading 100g, injection time 5s, standard pin is vertically worn
The depth for entering bitumen samples is 64（0.1mm）.
Above-mentioned AC-13（H）、AC-16（H）And AC-20（H）The determination mode of bituminous concrete bitumen aggregate ratio is：According to《Highway
Asphalt Pavement Construction Technique specification》（JTG F40-2004）In Marshall design method, take 5 different bitumen aggregate ratios that horse is respectively prepared
Xie Er test specimens, density, Marshall stability and the flow valuve of 5 test specimens, and the voidage of calculation testing piece, pitch saturation are determined respectively
The parameters such as degree, void in mineral aggregate, take density maxima, stability maximum, the intermediate value of void rate scope, regulation saturation degree
Bitumen aggregate ratio a corresponding to the intermediate value of scope1、a2、a3、a4, averaged is as OAC1；JTG F40- are corresponded with indices
AC-13 in 2004（H）、AC-16（H）And AC-20（H）The bitumen aggregate ratio model of asphalt Marshall Test technical standard requirement
Enclose OACmin~OACmaxIntermediate value is as OAC2；Take OAC1With OAC2Average value as optimum oil-stone ratio OAC, draw this reality respectively
Apply the AC-13 of example（H）、AC-16（H）And AC-20（H）The bitumen aggregate ratio of bituminous concrete.
The AC-13 of the present embodiment is determined respectively（H）、AC-16（H）And AC-20（H）The major technique ginseng of bituminous concrete
Number, is shown in Table 1, to verify that each bituminous concrete meets skid pad requirement.
AC-13 in the present invention（H）、AC-16（H）And AC-20（H）The Marshall Test design skill that bituminous concrete should meet
Art requirement is shown in Table 2.
Contrast Tables 1 and 2, it is seen that every technical parameter of the skid pad bituminous concrete of the present embodiment is satisfied by skid pad
Design requirement, can have higher construction easy property, density, water stability and shearing resistance on the premise of high-temperature stability is ensured
Performance, it can meet that the use of two parabolic curve sections of high speed circuit of speed 180km/h in skid pad will by the road surface of its laying
Ask, safe and reliable test site is provided to carry out the vehicle of properties test.
Claims (3)
- A kind of 1. skid pad asphalt concrete pavement, in ground（1）On by prior art be covered with bottom successively（2）, basic unit （3）, intermediate layer（4）And top layer（5）, it is characterised in that：Bottom（2）For the thick AC-20 of 5~7cm（H）Bituminous concrete is paved into, Basic unit（3）For the thick AC-16 of 3~5cm（H）Bituminous concrete is paved into, intermediate layer（4）For the thick AC-13 of 3~5cm（H）Pitch mixes Solidifying soil is paved into, top layer（5）For the thick AC-13 of 3~5cm（H）Bituminous concrete is paved into；The AC-13（H）Bituminous concrete is by pitch and AC-13（H）Asphalt is mixed, its bitumen aggregate ratio be 5.6~ 6.2%；The AC-13（H）Asphalt, it includes each component of following weight content：Rubble 50~70%, sand material 18~42% With miberal powder 8~12%；The rubble is a kind of material or any 2 to 3 kinds in basalt, diabase, limestone and granite Mixture or four kinds of mixture, rubble all passes through 16mm square hole screens；Sand material is the mixing of river sand and Machine-made Sand, sand material All pass through 1.18mm square hole screens；The miberal powder is one kind or any two kinds of mixing in agstone, calcium hydroxide and cement Thing or three kinds of mixture, miberal powder all pass through 0.075mm square hole screens；The AC-13（H）The mineral aggregate gradation scope of asphalt is：
Sieve aperture (mm) 16 13.2 9.5 4.75 2.36 1.18 0.6 0.3 0.15 0.075 Percent of pass（%） 100 95-100 78-92 62-80 45-65 30-50 20-34 15-23 10-16 8-12 The AC-16（H）Bituminous concrete is by pitch and AC-16（H）Asphalt is mixed, its bitumen aggregate ratio be 5.5~ 5.9%；The AC-16（H）Asphalt, it includes each component of following weight content：Rubble 52~74%, sand material 14~40% With miberal powder 8~12%；The rubble is a kind of material or any 2 to 3 kinds in basalt, diabase, limestone and granite Mixture or four kinds of mixture, rubble all passes through 19mm square hole screens；Sand material is the mixing of river sand and Machine-made Sand, sand material All pass through 1.18mm square hole screens；The miberal powder is one kind or any two kinds of mixing in agstone, calcium hydroxide and cement Thing or three kinds of mixture, miberal powder all pass through 0.075mm square hole screens；The AC-16（H）The mineral aggregate gradation scope of asphalt is：The AC-20（H）Bituminous concrete is by pitch and AC-20（H）Asphalt is mixed, its bitumen aggregate ratio be 5.4~ 5.8%；The AC-20（H）Asphalt, it includes each component of following weight content：Rubble 54~74%, sand material 14~38% With miberal powder 8~12%；The rubble is a kind of material or any 2 to 3 kinds in basalt, diabase, limestone and granite Mixture or four kinds of mixture, rubble all passes through 26.5mm square hole screens；Sand material is the mixing of river sand and Machine-made Sand, sand Material all passes through 1.18mm square hole screens；The miberal powder is the mixed of one kind in agstone, calcium hydroxide and cement or any two kinds Compound or three kinds of mixture, miberal powder all pass through 0.075mm square hole screens；The AC-20（H）The mineral aggregate gradation scope of asphalt is： - 2. skid pad asphalt concrete pavement according to claim 1, it is characterised in that river sand and mechanism in the sand material The weight ratio of sand is 1~1.5:1.
- 3. skid pad asphalt concrete pavement according to claim 1 or 2, it is characterised in that the needle penetration of the pitch will Ask for：Under the conditions of 25 DEG C of temperature, loading 100g, injection time 5s, standard pin vertically penetrate the depth of bitumen samples for 60~ 70（0.1mm）.
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| CN201610632491.0A CN106012745B (en) | 2016-08-04 | 2016-08-04 | A kind of skid pad asphalt and skid pad asphalt concrete pavement |
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| CN201610632491.0A CN106012745B (en) | 2016-08-04 | 2016-08-04 | A kind of skid pad asphalt and skid pad asphalt concrete pavement |
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| CN108439860A (en) * | 2018-03-20 | 2018-08-24 | 和县祥龙沥青混凝土有限公司 | Modern high dense asphalt concrete formula and its production method |
| CN111253113B (en) * | 2020-01-21 | 2021-04-13 | 中铁四局集团有限公司 | Reclaimed colloidal particle permeable asphalt concrete and preparation method thereof |
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| JP3428381B2 (en) * | 1996-08-16 | 2003-07-22 | 三菱マテリアル株式会社 | NOx purification pavement structure |
| CN101514536B (en) * | 2009-03-13 | 2010-08-18 | 上海浦东路桥建设股份有限公司 | Stress absorbing load bearing complex structure of high viscosity asphalt gap grading |
| CN102277817B (en) * | 2011-05-04 | 2012-12-05 | 中铁四局集团第一工程有限公司 | Asphalt wave roads construction method |
| CN102691244B (en) * | 2012-05-30 | 2014-07-23 | 中铁四局集团有限公司 | Construction method of noise type asphalt pavement |
| CN102745947A (en) * | 2012-08-07 | 2012-10-24 | 甘肃土木工程科学研究院 | Modified asphalt mixture |
| CN104631267B (en) * | 2015-01-16 | 2017-06-16 | 中交一公局第五工程有限公司 | The construction method of skid pad asphalt concrete pavement |
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