CN111188235A - Asphalt concrete pavement construction method - Google Patents

Asphalt concrete pavement construction method Download PDF

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Publication number
CN111188235A
CN111188235A CN202010030351.2A CN202010030351A CN111188235A CN 111188235 A CN111188235 A CN 111188235A CN 202010030351 A CN202010030351 A CN 202010030351A CN 111188235 A CN111188235 A CN 111188235A
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China
Prior art keywords
asphalt
powder
parts
asphalt concrete
surface layer
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CN202010030351.2A
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Chinese (zh)
Inventor
李从义
陈慧
李永鸿
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Guangzhou Minghui Construction Engineering Co Ltd
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Guangzhou Minghui Construction Engineering Co Ltd
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Priority to CN202010030351.2A priority Critical patent/CN111188235A/en
Publication of CN111188235A publication Critical patent/CN111188235A/en
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C3/00Foundations for pavings
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02Macromolecular compounds
    • C04B26/26Bituminous materials, e.g. tar, pitch
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C3/00Foundations for pavings
    • E01C3/06Methods or arrangements for protecting foundations from destructive influences of moisture, frost or vibration
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C7/00Coherent pavings made in situ
    • E01C7/08Coherent pavings made in situ made of road-metal and binders
    • E01C7/32Coherent pavings made in situ made of road-metal and binders of courses of different kind made in situ
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00612Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474Uses not provided for elsewhere in C04B2111/00
    • C04B2111/0075Uses not provided for elsewhere in C04B2111/00 for road construction
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/29Frost-thaw resistance

Abstract

The invention relates to the technical field of pavement construction, in particular to a method for constructing an asphalt concrete pavement, which comprises the following steps: s1, digging a groove; s2, compacting; s3, arranging a waterproof layer; s4, laying a base layer; s5, paving a cushion layer; s6, laying a first asphalt surface layer; s7, arranging a first connecting hole, and then paving a second asphalt surface layer; s8, arranging a second connecting hole, and then paving a third asphalt surface layer; the first asphalt surface layer, the second asphalt surface layer and the third asphalt surface layer are formed by paving asphalt concrete; the asphalt concrete comprises: 100 parts of asphalt; 100 portions of talcum powder and 110 portions of talcum powder; 50-60 parts of granite powder; 50-60 parts of basalt powder; 25-30 parts of zircon powder; 25-30 parts of dolomite powder; 25-30 parts of calcite powder; 25-30 parts of fluorite powder; 5-6 parts of polyphenyl methylsiloxane; 0.3-0.5 part of Damascus ketone; 0.5-1 part of methyl stearate. The asphalt concrete pavement prepared by the asphalt concrete pavement construction method disclosed by the invention is stable in cold regions, is not easy to crack, and has the effects of reducing the repairing frequency and reducing the maintenance cost.

Description

Asphalt concrete pavement construction method
Technical Field
The invention relates to the technical field of pavement construction, in particular to a method for constructing an asphalt concrete pavement.
Background
At present, the social development is set, vehicles are more and more, and therefore more and more road workers are required to run.
The existing road is divided into an asphalt pavement and a concrete pavement, wherein the asphalt pavement comprises an asphalt concrete pavement paved by asphalt concrete, and the asphalt concrete pavement has low void ratio, high compressive strength and high track resistance and has high elasticity, so that the pavement is durable while a vehicle runs comfortably.
The above prior art solutions have the following drawbacks: due to the characteristics of the asphalt material, the frost resistance of the asphalt concrete is general, and in cold regions, the asphalt concrete pavement is easy to crack due to freezing, so that the road repairing frequency is high, and the improvement space is provided.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an asphalt concrete pavement construction method which has the effect of being not easy to frost crack.
The above object of the present invention is achieved by the following technical solutions:
a construction method of an asphalt concrete pavement comprises the following steps:
s1, digging a groove;
s2, compacting the bottom and the side wall of the groove;
s3, arranging waterproof layers at the bottoms and the side walls of the grooves;
s4, laying a base layer on the waterproof layer;
s5, paving a cushion layer on the base layer;
s6, paving a first asphalt surface layer on the cushion layer;
s7, punching holes in the first asphalt surface layer to form a plurality of first connecting holes, and then paving a second asphalt surface layer on the first asphalt surface layer;
s8, punching holes in the second asphalt surface layer to form a plurality of second connecting holes, and then paving a third asphalt surface layer on the second asphalt surface layer;
the first asphalt surface layer, the second asphalt surface layer and the third asphalt surface layer are all formed by paving asphalt concrete;
the asphalt concrete comprises the following components in parts by mass:
100 parts of asphalt;
100 portions of talcum powder and 110 portions of talcum powder;
50-60 parts of granite powder;
50-60 parts of basalt powder;
25-30 parts of zircon powder;
25-30 parts of dolomite powder;
25-30 parts of calcite powder;
25-30 parts of fluorite powder;
5-6 parts of polyphenyl methylsiloxane;
0.3-0.5 part of Damascus ketone;
0.5-1 part of methyl stearate.
By adopting the technical scheme, the polyphenyl methyl siloxane, the damascenone and the methyl stearate are added into the asphalt concrete and are matched according to a specific proportion, so that the frost resistance of the asphalt concrete is greatly improved, the asphalt concrete is more suitable for cold regions, an asphalt surface layer paved by the asphalt concrete is not easy to frost crack, and the asphalt concrete pavement prepared by the asphalt concrete pavement construction method is stable and not easy to crack in the cold regions, the repairing frequency is reduced, and the maintenance cost is reduced.
Through setting up first connecting hole and second connecting hole for the stability of being connected between first pitch surface course and the second pitch surface course is stronger, makes the stability of being connected of second pitch surface course and third pitch surface course stronger simultaneously, thereby has strengthened the overall stability of asphalt concrete road surface, thereby has improved anti rutting performance, makes the difficult damage of asphalt concrete road surface, reduces cost of maintenance.
By adding granite powder, basalt powder, zircon powder, dolomite powder, calcite powder and fluorite powder into the asphalt concrete in a specific proportion as aggregates, the compressive strength of the asphalt concrete is higher, so that the asphalt concrete pavement is not easy to deform under pressure, the structural stability of the asphalt concrete pavement is improved, and the asphalt concrete pavement is durable.
By adding the talcum powder into the asphalt concrete, the asphalt concrete has better lubricity, so that the asphalt concrete is more favorably paved evenly, and the quality of a paved asphalt surface layer is higher.
The present invention in a preferred example may be further configured to: in step S7, a second asphalt layer is laid after all the first connection holes are filled with glass fibers.
Through adopting above-mentioned technical scheme, through putting into glass fiber in first connecting hole, effective local reinforcement is located the asphalt concrete in first connecting hole, make the partial strength that the second asphalt surface course inserted in first connecting hole higher, make the second connect the part in the surface course atress with partial stress transmit for first asphalt surface course better through inserting in the part in first connecting hole, thereby be favorable to first asphalt surface course and second asphalt surface course cooperation dispersed stress, reduce the condition that stress concentration leads to the damage, the structural stability of asphalt concrete road surface has effectively been improved.
The present invention in a preferred example may be further configured to: and in the step S8, laying a third asphalt surface layer after carbon fibers are put into all the second connecting holes.
Through adopting above-mentioned technical scheme, through adding the carbon fiber at the second connecting hole, utilize the part that carbon fiber reinforcement third pitch surface course inserted in the second connecting hole, make the partial strength that the third pitch surface course inserted in the second connecting hole higher, make the part through inserting in the second connecting hole during third connecting surface course atress transmit partial stress for the second pitch surface course better, thereby be favorable to second pitch surface course and third pitch surface course cooperation dispersed stress, reduce the condition that stress concentration leads to the damage, the structural stability of asphalt concrete pavement has effectively been improved.
The present invention in a preferred example may be further configured to: the asphalt concrete also comprises the following components in parts by mass:
5-8 parts of glass fiber.
By adopting the technical scheme, the glass fiber is added into the asphalt concrete, so that the anti-rutting capability of the asphalt concrete is effectively improved, the rutting of the asphalt concrete pavement is not easy to occur, the structural stability of the asphalt concrete pavement is improved, and the maintenance cost is reduced.
The present invention in a preferred example may be further configured to: the asphalt concrete also comprises the following components in parts by mass:
1-2 parts of a silane coupling agent.
By adopting the technical scheme, the silane coupling agent is added into the asphalt concrete to be matched with the glass fiber, so that the effect of the glass fiber reinforced asphalt concrete is better.
The present invention in a preferred example may be further configured to: the asphalt concrete also comprises the following components in parts by mass:
0.3-0.5 part of 2-naphthylacetonitrile.
By adopting the technical scheme, 2-naphthylacetonitrile is added into the asphalt concrete to be matched with polyphenyl methyl siloxane, damascenone and methyl stearate, so that the effect of improving the frost resistance of the asphalt concrete is better, the asphalt concrete pavement prepared by the asphalt concrete pavement construction method is more frost-resistant, the structure is more stable in cold regions, and the applicability is wider.
The present invention in a preferred example may be further configured to: the preparation method of the asphalt concrete comprises the following steps:
s01, heating the asphalt to 150-170 ℃, adding polyphenyl methylsiloxane, damascenone and methyl stearate into the asphalt, and uniformly stirring to form a premix;
s02, adding talcum powder into the premix, and uniformly stirring to form a medium mixture;
s03, adding granite powder, basalt powder, zircon powder, dolomite powder, calcite powder and fluorite powder into the medium-mixed material, and uniformly stirring to form the asphalt concrete.
By adopting the technical scheme, the polyphenyl methyl siloxane, the damascenone and the methyl stearate are added into the asphalt firstly, so that the polyphenyl methyl siloxane, the damascenone and the methyl stearate are uniformly dispersed in the asphalt, and the effect of improving the frost resistance of the asphalt concrete is ensured.
The talcum powder is added into the premix firstly, so that the medium mixture has better lubricity, and the residual raw materials are easier to move in the medium mixture to be uniformly dispersed after being added, so that the quality of the asphalt concrete is better.
The present invention in a preferred example may be further configured to: in the step 1, glass fiber, silane coupling agent and 2-naphthylacetonitrile are also added into the asphalt.
By adopting the technical scheme, the prepared asphalt concrete has better compression resistance and frost resistance and better quality.
In summary, the invention includes at least one of the following beneficial technical effects:
1. the polyphenyl methyl siloxane, the damascenone and the methyl stearate are added into the asphalt concrete and are matched according to a specific proportion, so that the frost resistance of the asphalt concrete is greatly improved, the asphalt concrete is more suitable for cold regions, an asphalt surface layer paved by the asphalt concrete is not easy to frost crack, and the asphalt concrete pavement prepared by the asphalt concrete pavement construction method is stable in the cold regions and is not easy to crack, the repairing frequency is reduced, and the maintenance cost is reduced;
2. the first connecting hole and the second connecting hole are arranged, so that the connection stability between the first asphalt surface layer and the second asphalt surface layer is stronger, and the connection stability between the second asphalt surface layer and the third asphalt surface layer is stronger, so that the overall stability of the asphalt concrete pavement is enhanced, the anti-rutting performance is improved, the asphalt concrete pavement is not easy to damage, and the maintenance cost is reduced;
3. 2-naphthylacetonitrile is added into the asphalt concrete to be matched with polyphenyl methyl siloxane, damascenone and methyl stearate, so that the effect of improving the frost resistance of the asphalt concrete is better, the asphalt concrete pavement prepared by the asphalt concrete pavement construction method is more frost-resistant, the structure is more stable in cold regions, and the applicability is wider.
Drawings
FIG. 1 is a schematic flow chart of a process for producing asphalt concrete according to the present invention;
FIG. 2 is a schematic flow chart of the asphalt concrete pavement construction method of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In the following examples and comparative examples:
the asphalt adopts No. 70 road asphalt sold by Weifang chang Xue building materials Limited company;
the talcum powder is 1250-mesh talcum powder sold by Jinan Ruibao chemical Co., Ltd;
the granite powder adopts wear-resistant granite powder sold by Xin Lei mineral powder processing factories in Tang county;
the basalt powder is sold by mineral powder processing plants of Xiangtai, Lingshou county;
the zircon powder is 1250-mesh zircon powder sold by Zhanteng mineral product processing factories in Lingshou county;
the dolomite powder is sold by Lingshou county Xintuo mineral product processing Co., Ltd;
the calcite powder is sold by Lingshou morpholine mineral product processing factories;
the fluorite powder is 325 mesh fluorite powder sold by mica factory in Lingshu county;
the polyphenyl methyl siloxane is polyphenyl methyl siloxane sold by Hubei Shushu biological technology limited company;
the damascenone is sold by Jinjinle industry Co., Ltd, Shanghai;
the methyl stearate is methyl stearate sold by the chemical company Huao chemical Co., Ltd, Guangzhou city;
the glass fiber is short cut alkali-free glass fiber sold by Zibo Bansen composite material company Limited;
the silane coupling agent is a kh560 coupling agent sold by Dinghai plastic chemical Co., Ltd, Dongguan city;
the 2-naphthylacetonitrile is 2-naphthylacetonitrile sold by Shanghai Yuan Ye Biotech Co.
Example 1
Referring to fig. 1, the preparation method of the asphalt concrete disclosed by the invention comprises the following steps:
s01, adding 100kg of asphalt into a stirring kettle, heating the asphalt to 150 ℃ and keeping the temperature constant, adding 5kg of polyphenyl methyl siloxane, 0.3kg of damascenone and 0.5kg of methyl stearate into the asphalt, stirring at the rotating speed of 75r/min for 5min, and forming a premix.
S02, adding 100kg of talcum powder into the premix, stirring at the rotating speed of 60r/min for 5min to form a medium mixture.
S03, adding 50kg of granite powder, 50kg of basalt powder, 25kg of zircon powder, 25kg of dolomite powder, 25kg of calcite powder and 25kg of fluorite powder into the medium mixture, stirring at the rotating speed of 45r/min for 10min to form asphalt concrete.
Example 2
Referring to fig. 1, the preparation method of the asphalt concrete disclosed by the invention comprises the following steps:
s01, adding 100kg of asphalt into a stirring kettle, heating the asphalt to 160 ℃, keeping the temperature constant, adding 5.5kg of polyphenyl methyl siloxane, 0.4kg of damascenone and 0.75kg of methyl stearate into the asphalt, stirring at the rotating speed of 75r/min for 5min, and forming a premix.
S02, adding 105kg of talcum powder into the premix, stirring at the rotating speed of 60r/min for 5min to form a medium mixture.
S03, adding 55kg of granite powder, 55kg of basalt powder, 27.5kg of zircon powder, 27.5kg of dolomite powder, 27.5kg of calcite powder and 27.5kg of fluorite powder into the medium-mixed material at a rotating speed of 45r/min, and stirring for 10min to form the asphalt concrete.
Example 3
Referring to fig. 1, the preparation method of the asphalt concrete disclosed by the invention comprises the following steps:
s01, adding 100kg of asphalt into a stirring kettle, heating the asphalt to 170 ℃ and keeping the temperature constant, adding 6kg of polyphenyl methyl siloxane, 0.5kg of damascenone and 1kg of methyl stearate into the asphalt, stirring at the rotating speed of 75r/min for 5min to form a premix.
S02, adding 110kg of talcum powder into the premix, stirring at the rotating speed of 60r/min for 5min to form a medium mixture.
S03, adding 60kg of granite powder, 60kg of basalt powder, 30kg of zircon powder, 30kg of dolomite powder, 30kg of calcite powder and 30kg of fluorite powder into the medium mixture, stirring at the rotating speed of 45r/min for 10min to form the asphalt concrete.
Example 4
Referring to fig. 1, the preparation method of the asphalt concrete disclosed by the invention comprises the following steps:
s01, adding 100kg of asphalt into a stirring kettle, heating the asphalt to 160 ℃, keeping the temperature constant, adding 5.5kg of polyphenyl methyl siloxane, 0.3kg of damascenone and 0.6kg of methyl stearate into the asphalt, stirring at the rotating speed of 75r/min for 5min, and forming a premix.
S02, adding 108kg of talcum powder into the premix, stirring at the rotating speed of 60r/min for 5min to form a medium mixture.
S03, adding 58kg of granite powder, 52kg of basalt powder, 26kg of zircon powder, 28kg of dolomite powder, 26kg of calcite powder and 28kg of fluorite powder into the medium mixture, stirring at the rotating speed of 45r/min for 10min to form asphalt concrete.
Example 5
The difference from example 4 is that:
in step S01, 5kg of glass fiber was added to the asphalt.
The glass fiber length was 5 mm.
Example 6
The difference from example 4 is that:
in step S01, 6.5kg of glass fiber was added to the asphalt.
The glass fiber length was 5 mm.
Example 7
The difference from example 4 is that:
in step S01, 8kg of glass fiber was added to the asphalt.
The glass fiber length was 5 mm.
Example 8
The difference from example 4 is that:
in step S01, 7kg of glass fiber was added to the asphalt.
The glass fiber length was 5 mm.
Example 9
The difference from example 4 is that:
in step S01, 5kg of glass fiber and 1kg of silane coupling agent are added to the asphalt.
The glass fiber length was 5 mm.
Example 10
The difference from example 4 is that:
in step S01, 6.5kg of glass fiber and 1.5kg of silane coupling agent were added to the asphalt.
The glass fiber length was 5 mm.
Example 11
The difference from example 4 is that:
in step S01, 8kg of glass fiber and 2kg of silane coupling agent were added to the asphalt.
The glass fiber length was 5 mm.
Example 12
The difference from example 4 is that:
in step S01, 7kg of glass fiber and 1.8kg of silane coupling agent were added to the asphalt.
The glass fiber length was 5 mm.
Example 13
The difference from example 4 is that:
in step S01, 0.3kg of 2-naphthylacetonitrile was further added to the asphalt.
Example 14
The difference from example 4 is that:
in step S01, 0.4kg of 2-naphthylacetonitrile was further added to the asphalt.
Example 15
The difference from example 4 is that:
in step S01, 0.5kg of 2-naphthylacetonitrile was further added to the asphalt.
Example 16
The difference from example 4 is that:
in step S01, 0.45kg of 2-naphthylacetonitrile was further added to the asphalt.
Example 17
The difference from example 4 is that:
in step S01, 5kg of glass fiber, 1kg of silane coupling agent and 0.3kg of 2-naphthylacetonitrile are also added into the asphalt.
The glass fiber length was 5 mm.
Example 18
The difference from example 4 is that:
in step S01, 6.5kg of glass fiber, 1.5kg of silane coupling agent and 0.4kg of 2-naphthylacetonitrile are also added into the asphalt.
The glass fiber length was 5 mm.
Example 19
The difference from example 4 is that:
in step S01, 8kg of glass fiber, 2kg of silane coupling agent and 0.5kg of 2-naphthylacetonitrile are added into the asphalt.
The glass fiber length was 5 mm.
Example 20
The difference from example 4 is that:
in step S01, 7kg of glass fiber, 1.8kg of silane coupling agent and 0.45kg of 2-naphthylacetonitrile are also added into the asphalt.
The glass fiber length was 5 mm.
Example 21
Referring to fig. 2, in order to disclose a method for constructing an asphalt concrete pavement,
s1, excavating a groove according to the extending direction of a road in a construction drawing.
And S2, compacting the bottom and the side wall of the groove through road rolling equipment.
And S3, spraying waterproof asphalt paint on the bottom and the side wall of the groove to form a waterproof layer.
And S4, after the waterproof layer is solidified, paving a layer of stone blocks with the grain diameter of 30 +/-1 cm on the waterproof layer at the bottom of the groove to form a base layer.
S5, paving broken stones with the grain diameter of 3 +/-1 cm on the base layer to form a cushion layer, wherein the thickness of the cushion layer is 7 cm.
S6, paving a first asphalt surface layer on the cushion layer and compacting, wherein the thickness of the first asphalt surface layer is 8 cm.
S7, punching holes in the first asphalt surface layer to form a plurality of first connecting holes, wherein the hole depth of each first connecting hole is 5cm, the diameter of each first connecting hole is 1cm, the distance between every two adjacent first connecting holes is 1m, glass fibers with the length of 0.5mm are placed in all the first connecting holes, the glass fibers placed in each first connecting hole are 1 +/-0.1 g, and then laying a second asphalt surface layer on the first asphalt surface layer and compacting the second asphalt surface layer.
S8, punching holes in the second asphalt surface layer to form a plurality of second connecting holes, wherein the second connecting holes are staggered with the first connecting holes, the hole depth of each second connecting hole is 5cm, the diameter of each second connecting hole is 1cm, the distance between every two adjacent second connecting holes is 1m, carbon fibers with the length of 0.5mm are placed in all the second connecting holes, the carbon fibers placed in each second connecting hole are 1 +/-0.1 g, and then, a third asphalt surface layer is laid on the second asphalt surface layer and compacted.
The first asphalt pavement, the second asphalt pavement and the third asphalt pavement are all formed by paving the asphalt concrete of the embodiment 20, and the paving temperature is 160 ℃.
In other embodiments, the first asphalt pavement, the second asphalt pavement, and the third asphalt pavement can be further paved by the asphalt concretes of the embodiments 1-19.
The implementation principle of the embodiment is as follows: through set up first connecting hole on first pitch surface course for the partial asphalt concrete of second pitch surface course has improved the stability of being connected of second pitch surface course and first pitch surface course in inserting first connecting hole.
Through set up the second connecting hole on the second pitch surface course for the partial asphalt concrete of third pitch surface course inserts in the second connecting hole, has improved the stability of being connected of third pitch surface course and second pitch surface course.
Through putting into glass fiber in first connecting hole and putting into the carbon fiber in the second connecting hole, effectively reinforce the partial asphalt concrete that the second pitch surface course inserted in first connecting hole and effectively reinforce the partial asphalt concrete that the third pitch surface course inserted in the second connecting hole, make the second pitch surface course transmit stress to the first pitch surface course in with the asphalt concrete through inserting in first connecting hole when atress and the third pitch surface course transmits stress to the second pitch surface course in with the asphalt concrete through inserting in the second connecting hole when atress, thereby make the asphalt concrete road surface easily dispersed stress, thereby reduce the condition that the local stress concentration of asphalt concrete road surface leads to the local damage, effectively improve the structural stability of asphalt concrete road surface.
Comparative example 1
The difference from example 4 is that:
in step S01, no polyphenylmethylsiloxane is added to the asphalt.
Comparative example 2
The difference from example 4 is that:
in step S01, no damascene is added to the asphalt.
Comparative example 3
The difference from example 4 is that:
in step S01, methyl stearate is not added to the asphalt.
Comparative example 4
The difference from example 4 is that:
in step S01, damascenone and methyl stearate are not added to the asphalt.
Comparative example 5
The difference from example 4 is that:
in step S01, polyphenyl methyl siloxane, damascenone, and methyl stearate are not added to the asphalt.
Experiment 1
The asphalt concretes of examples 1 to 20 and comparative examples 1 to 5 were subjected to an asphalt mixture rutting test using a rutting machine under standard conditions of 60 ℃ and 0.7MPa, and the dynamic stability (times/mm) of the samples prepared from the asphalt concretes of examples 1 to 20 and comparative examples 1 to 5 was recorded.
Experiment 2
The asphalt concretes of examples 1 to 20 and comparative examples 1 to 5 were subjected to an asphalt brittleness point test (frass method) by an asphalt brittleness point instrument, and the brittleness points of the samples prepared from the asphalt concretes of examples 1 to 20 and comparative examples 1 to 5 were recorded.
Experiment 3
The samples prepared from the asphalt concretes of examples 1 to 20 and comparative examples 1 to 5 were tested for compressive strength according to ASTM D1074-2009 Standard test method for compressive Strength of asphalt mixture.
The specific experimental data are shown in Table 1
TABLE 1
Figure BDA0002364078160000141
Figure BDA0002364078160000151
According to the comparison of the data of comparative examples 1-5 and example 4 in table 1, the polyphenyl methyl siloxane, damascenone and methyl stearate are independently added into the asphalt concrete, which has no obvious negative effect on the performance of the asphalt concrete, and when the polyphenyl methyl siloxane, damascenone and methyl stearate are simultaneously added into the asphalt concrete in a specific proportion, the antifreezing performance of the asphalt concrete is effectively improved, so that the asphalt concrete has lower brittle point, is not easy to freeze and crack in cold regions, and the applicability of the asphalt concrete pavement construction method is wider.
According to the comparison of the data of the examples 5 to 8 and the data of the example 4 in the table 1, the glass fiber is added into the asphalt concrete, so that the dynamic stability of the asphalt concrete is effectively improved, the asphalt concrete pavement is not easy to generate ruts, the maintenance frequency is reduced, and the maintenance cost is reduced.
According to the comparison of the data of examples 9-12 and example 4 in table 1, the silane coupling agent is added to the asphalt concrete to cooperate with the glass fiber, so that the effect of the glass fiber modified asphalt concrete is better, the dynamic stability of the asphalt concrete is higher, and the anti-rutting capability is stronger.
According to the comparison of the data of the examples 13-16 and the example 4 in the table 1, the 2-naphthylacetonitrile is added into the asphalt concrete to be matched with the polyphenyl methylsiloxane, the damascenone and the methyl stearate, so that the modified asphalt concrete has better anti-freezing performance effect, has lower brittle point, is more suitable for cold regions, and has wider applicability of the asphalt concrete pavement construction method.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims (8)

1. A construction method of an asphalt concrete pavement is characterized by comprising the following steps: the method comprises the following steps:
s1, digging a groove;
s2, compacting the bottom and the side wall of the groove;
s3, arranging waterproof layers at the bottoms and the side walls of the grooves;
s4, laying a base layer on the waterproof layer;
s5, paving a cushion layer on the base layer;
s6, paving a first asphalt surface layer on the cushion layer;
s7, punching holes in the first asphalt surface layer to form a plurality of first connecting holes, and then paving a second asphalt surface layer on the first asphalt surface layer;
s8, punching holes on the second asphalt surface layer to form a plurality of second connecting holes, and then paving a third asphalt surface layer on the second asphalt surface layer;
the first asphalt surface layer, the second asphalt surface layer and the third asphalt surface layer are all formed by paving asphalt concrete;
the asphalt concrete comprises the following components in parts by mass:
100 parts of asphalt;
100 portions of talcum powder and 110 portions of talcum powder;
50-60 parts of granite powder;
50-60 parts of basalt powder;
25-30 parts of zircon powder;
25-30 parts of dolomite powder;
25-30 parts of calcite powder;
25-30 parts of fluorite powder;
5-6 parts of polyphenyl methylsiloxane;
0.3-0.5 part of Damascus ketone;
0.5-1 part of methyl stearate.
2. The asphalt concrete pavement construction method according to claim 1, characterized in that: in step S7, a second asphalt layer is laid after all the first connection holes are filled with glass fibers.
3. The asphalt concrete pavement construction method according to claim 1, characterized in that: and in the step S8, laying a third asphalt surface layer after carbon fibers are put into all the second connecting holes.
4. The asphalt concrete pavement construction method according to claim 1, characterized in that: the asphalt concrete also comprises the following components in parts by mass:
5-8 parts of glass fiber.
5. The asphalt concrete pavement construction method according to claim 4, characterized in that: the asphalt concrete also comprises the following components in parts by mass:
1-2 parts of a silane coupling agent.
6. The asphalt concrete pavement construction method according to claim 1, characterized in that: the asphalt concrete also comprises the following components in parts by mass:
0.3-0.5 part of 2-naphthylacetonitrile.
7. The asphalt concrete pavement construction method according to claim 1, characterized in that: the preparation method of the asphalt concrete comprises the following steps:
s01, heating the asphalt to 150-170 ℃, adding polyphenyl methylsiloxane, damascenone and methyl stearate into the asphalt, and uniformly stirring to form a premix;
s02, adding talcum powder into the premix, and uniformly stirring to form a medium mixture;
s03, adding granite powder, basalt powder, zircon powder, dolomite powder, calcite powder and fluorite powder into the medium-mixed material, and uniformly stirring to form the asphalt concrete.
8. A method of constructing an asphalt pavement according to claim 7, wherein: in the step 1, glass fiber, silane coupling agent and 2-naphthylacetonitrile are also added into the asphalt.
CN202010030351.2A 2020-01-13 2020-01-13 Asphalt concrete pavement construction method Withdrawn CN111188235A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2467129A (en) * 2009-01-22 2010-07-28 Brett Landscaping Ltd Paving structure
US20120039667A1 (en) * 2010-08-10 2012-02-16 Bryan White Water Permeable Traffic Bearing System, Method And Drainage Joint For Use With Same
CN109574566A (en) * 2019-01-12 2019-04-05 武汉中阳明建材有限公司 A kind of concrete and preparation method thereof
CN110510920A (en) * 2019-08-27 2019-11-29 广东粤腾建设有限公司 Frost-cracking-preventing road surface
CN110512505A (en) * 2019-08-12 2019-11-29 广东长海建设工程有限公司 The method for maintaining of asphalt roads
CN110510964A (en) * 2019-10-08 2019-11-29 广东东方混凝土有限公司 A kind of ready-mixed concrete
CN110668752A (en) * 2019-09-28 2020-01-10 广州一业建筑工程有限公司 Municipal asphalt concrete pavement construction method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2467129A (en) * 2009-01-22 2010-07-28 Brett Landscaping Ltd Paving structure
US20120039667A1 (en) * 2010-08-10 2012-02-16 Bryan White Water Permeable Traffic Bearing System, Method And Drainage Joint For Use With Same
CN109574566A (en) * 2019-01-12 2019-04-05 武汉中阳明建材有限公司 A kind of concrete and preparation method thereof
CN110512505A (en) * 2019-08-12 2019-11-29 广东长海建设工程有限公司 The method for maintaining of asphalt roads
CN110510920A (en) * 2019-08-27 2019-11-29 广东粤腾建设有限公司 Frost-cracking-preventing road surface
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Application publication date: 20200522