CN110528350B - Municipal road construction method - Google Patents
Municipal road construction method Download PDFInfo
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- CN110528350B CN110528350B CN201910798771.2A CN201910798771A CN110528350B CN 110528350 B CN110528350 B CN 110528350B CN 201910798771 A CN201910798771 A CN 201910798771A CN 110528350 B CN110528350 B CN 110528350B
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- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
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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
- E01C7/10—Coherent pavings made in situ made of road-metal and binders of road-metal and cement or like binders
- E01C7/14—Concrete paving
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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
- E01C7/10—Coherent pavings made in situ made of road-metal and binders of road-metal and cement or like binders
- E01C7/14—Concrete paving
- E01C7/142—Mixtures or their components, e.g. aggregate
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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
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Ceramic Engineering (AREA)
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- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to the technical field of municipal roads, and provides a municipal road construction method aiming at the problem that the soil below a road is excessively soaked to cause the structural strength reduction of the soil and possibly cause the road collapse, wherein the technical scheme is as follows: the method comprises the following steps: s1, excavating a foundation pit; s2, laying a base layer; s3, laying a cushion layer; s4, paving a surface layer: s41, paving a polyurethane surface layer; s42, paving an asphalt surface layer; s43, paving a concrete surface layer; the concrete surface layer is formed by pouring concrete grout; the concrete slurry comprises the following components in parts by weight: 100 parts of Portland cement; 400 portions of coarse aggregate; 150 portions of fine aggregate and 200 portions of fine aggregate; 100 portions and 150 portions of polyurethane adhesive; 5-10 parts of a silane coupling agent; 90-110 parts of water. Include polyurethane surface course, pitch surface course and concrete surface course through the surface course, utilize the polyurethane surface course to provide better waterproof nature for the difficult infiltration of water on road surface to the bed course, reduce the influence to road bottom soil foundation, keep road bottom soil stable in structure, make the road comparatively stable difficult collapse.
Description
Technical Field
The utility model belongs to the technical field of the town road technique and specifically relates to a town road construction method is related to.
Background
The municipal road is one of urban transportation components, and as cities occur, the number of roads is increased, and the covered area of the roads is increased.
Concrete or asphalt is usually adopted as a road surface, water seeps from the general concrete road surface and the general asphalt road surface, a large amount of water seeps into the lower part of the road, usually a soil foundation tamped by soil, and if the large amount of water continuously seeps, the structural strength of the soil is reduced due to excessive soil soaking below the road, so that the stability of the supporting road is reduced, the road is likely to collapse, and a space for improvement is provided.
Disclosure of Invention
To the not enough of prior art existence, the utility model aims to provide a town road construction method has stable in structure's advantage.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a municipal road construction method comprises the following steps:
s1, excavating a foundation pit;
s2, laying a base layer;
s3, laying a cushion layer;
s4, paving a surface layer, comprising:
s41, paving a polyurethane surface layer;
s42, paving an asphalt surface layer;
s43, paving a concrete surface layer;
the concrete surface layer is formed by pouring concrete grout;
the concrete slurry comprises the following components in parts by weight:
100 parts of Portland cement;
400 portions of coarse aggregate;
150 portions of fine aggregate and 200 portions of fine aggregate;
100 portions and 150 portions of polyurethane adhesive;
5-10 parts of a silane coupling agent;
90-110 parts of water.
By adopting the technical scheme, the surface layer comprises the polyurethane surface layer, the asphalt surface layer and the concrete surface layer, and the polyurethane surface layer is utilized to provide better waterproofness, so that water on the road surface is not easy to seep into the cushion layer, the influence on the soil foundation at the bottom of the road is reduced, the soil structure at the bottom of the road is kept stable, and the road is stable and is not easy to collapse;
meanwhile, the elastic deformation of the polyurethane is utilized to better absorb the earthquake impact, so that the road surface layer is not easy to crack when the earthquake occurs, and the influence on the travelling crane is reduced;
meanwhile, the polyurethane surface layer and the asphalt surface layer are matched to provide better viscoelasticity, so that the road is not too hard, and the driving is more comfortable;
the concrete surface layer enables the road surface smoothness to be higher, the driving speed can be higher, the influence on high-speed driving vehicles is reduced, and the driving comfort level is further increased;
by adding the polyurethane adhesive into the concrete slurry and utilizing the polyurethane adhesive to permeate into gaps between the coarse aggregates and the fine aggregates, the impermeability of the concrete surface layer is better, so that moisture is not easy to permeate into the ground through the concrete surface layer, the condition that the soil strength is reduced due to the fact that a large amount of rainwater permeates into the soil at the bottom of the road is reduced, and the road stability is improved;
through adding silane coupling agent in the concrete thick liquid for polyurethane adhesive changes in the dispersion evenly in the concrete thick liquid, makes concrete surface course and asphalt surface course be connected more stably simultaneously, makes behind the concrete surface course oozes the asphalt surface course to be connected comparatively stably with the polyurethane surface course simultaneously.
The utility model discloses further set up to: the concrete slurry also comprises the following components in parts by weight:
15-20 parts of glass fiber;
the length of the glass fiber is 1-2 mm.
By adopting the technical scheme, the glass fiber is added into the concrete slurry, so that the glass fiber is filled into gaps between the coarse aggregates and the fine aggregates, the gaps of the concrete are further reduced while the concrete is reinforced by the glass fiber, and the anti-permeability effect is improved.
The utility model discloses further set up to: the concrete slurry also comprises the following components in parts by weight:
3-5 parts of organic montmorillonite.
By adopting the technical scheme, the organic montmorillonite is added, and the glass fiber is clamped by the flaky layer structure of the organic montmorillonite, so that the organic montmorillonite forms nodes, the glass fiber is easier to form a net shape, and the reinforcing effect is better.
The utility model discloses further set up to: the concrete slurry also comprises the following components in parts by weight:
5-10 parts of zircon powder.
Through adopting above-mentioned technical scheme, through adding zircon powder, reinforce the concrete betterly for the compressive strength of concrete rises, and then makes the structural stability of concrete surface course better.
The utility model discloses further set up to: the concrete slurry also comprises the following components in parts by weight:
0.2-0.5 part of 1, 2, 3, 10 b-tetrahydrofluoranthene.
By adopting the technical scheme, the 1, 2, 3, 10 b-tetrahydrofluoranthene is added into the concrete slurry, so that the frost resistance of the concrete structure formed by the concrete slurry is enhanced, and the concrete surface layer is not easy to frost crack.
The utility model discloses further set up to: the concrete slurry also comprises the following components in parts by weight:
10-15 parts of nano lotus leaf powder.
By adopting the technical scheme, the nano lotus leaf powder is added, the nano lotus leaf powder is filled into the gaps between the coarse aggregates and the fine aggregates, and the gaps of the concrete surface layer are further filled.
The utility model discloses further set up to: the concrete slurry also comprises the following components in parts by weight:
30-40 parts of ethanol.
By adopting the technical scheme, the ethanol is added to mix with the water, so that the freezing point of the water is lowered by utilizing the ethanol, the water is not easy to freeze, and meanwhile, the 1, 2, 3, 10 b-tetrahydrofluoranthene is easy to disperse in the ethanol and is further easy to disperse uniformly in the concrete slurry.
The utility model discloses further set up to: the preparation method of the concrete slurry comprises the following steps:
a. mixing portland cement and water to form a cement slurry;
b. adding a silane coupling agent and a polyurethane adhesive into the cement slurry, and uniformly stirring to form a premix;
c. adding the coarse aggregate and the fine aggregate into the premix, and uniformly stirring to form concrete slurry.
Through adopting above-mentioned technical scheme, mix silane coupling agent, polyurethane adhesive and cement thick liquid earlier for silane coupling agent, polyurethane adhesive easily disperse evenly, reduce coarse aggregate, lead to the condition that silane coupling agent, polyurethane adhesive disperse unevenly after the fine aggregate adds, guarantee the quality of concrete thick liquid, and then guarantee the quality of concrete surface course.
To sum up, the utility model discloses following beneficial effect has:
1. the surface layer comprises a polyurethane surface layer, an asphalt surface layer and a concrete surface layer, and the polyurethane surface layer is utilized to provide good waterproofness, so that water on the road surface is not easy to seep to the cushion layer, the influence on the soil foundation at the bottom of the road is reduced, the soil structure at the bottom of the road is kept stable, and the road is stable and is not easy to collapse;
2. 1, 2, 3, 10 b-tetrahydrofluoranthene is added into the concrete slurry, so that the frost resistance of a concrete structure formed by the concrete slurry is enhanced, and a concrete surface layer is not easy to frost crack;
3. by adding ethanol, the ethanol is mixed with water, so that the freezing point of the water is lowered by utilizing the ethanol, the water is not easy to freeze, and meanwhile, the 1, 2, 3, 10 b-tetrahydrofluoranthene is easy to disperse in the ethanol and is further easy to disperse uniformly in the concrete slurry.
Drawings
FIG. 1 is a schematic flow diagram of a municipal road construction method of the invention;
FIG. 2 is a schematic view of a process for laying a surface layer according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
In the following examples and comparative examples:
the portland cement is Huarun cement PO42.5R ordinary portland cement sold by Ruoze building materials Co., Ltd, Dongguan city;
the coarse aggregate is crushed stone sold by Xu building materials Co., Ltd of Hebeike;
the fine aggregate adopts river sand sold by Shenzhen eight metallurgy engineering industry Co., Ltd;
the polyurethane adhesive adopts a foamless double-component polyurethane adhesive HY813 sold by Shanghai Hao republic of chemical industry Co., Ltd;
the silane coupling agent is a silane coupling agent KH-550 sold by Jie chemical technology Limited in Guangzhou city;
the glass fiber adopts glass fiber organic montmorillonite sold by Jiangsu Kangdafu new material science and technology limited company and adopts organic montmorillonite sold by Guangzhou Zedan deer trade limited company;
the zircon powder is zircon powder sold by Zhanteng mineral product processing factories in Lingshu county;
the 1, 2, 3, 10 b-tetrahydrofluoranthene adopts 1, 2, 3, 10 b-tetrahydrofluoranthene sold by Shanghai Ethyl chemical Co., Ltd;
the nano lotus leaf powder is obtained by grinding lotus leaf powder sold by Xuzhou nature food Co., Ltd;
the ethanol is anhydrous ethanol sold by Runhui chemical technology, Inc. of Dongguan city.
Example 1
A concrete slurry is prepared by the following steps:
a. adding 100kg of Portland cement, 90kg of water and 11kg of water reducing agent into a stirring kettle, stirring at the rotating speed of 60r/min for 5min to form cement slurry;
b. adding 5kg of silane coupling agent and 100kg of polyurethane adhesive into the cement slurry, stirring at the rotating speed of 60r/min for 5min to form a premix;
c. 300kg of coarse aggregate and 150kg of fine aggregate are added into the premix, the rotating speed is 45r/min, and the mixture is stirred for 8min to form concrete slurry.
Example 2
A concrete slurry is prepared by the following steps:
a. adding 100kg of Portland cement, 100kg of water and 10kg of water reducing agent into a stirring kettle, stirring at the rotating speed of 60r/min for 5min to form cement slurry;
b. adding 7.5kg of silane coupling agent and 125kg of polyurethane adhesive into the cement slurry, stirring at the rotating speed of 60r/min for 5min to form a premix;
c. 350kg of coarse aggregate and 175kg of fine aggregate are added into the premix, the rotating speed is 45r/min, and the mixture is stirred for 8min to form concrete slurry.
Example 3
A concrete slurry is prepared by the following steps:
a. adding 100kg of Portland cement, 110kg of water and 9kg of water reducing agent into a stirring kettle, stirring at the rotating speed of 60r/min for 5min to form cement slurry;
b. adding 10kg of silane coupling agent and 150kg of polyurethane adhesive into the cement slurry, stirring at the rotating speed of 60r/min for 5min to form a premix;
c. 400kg of coarse aggregate and 200kg of fine aggregate are added into the premix, the rotating speed is 45r/min, and the mixture is stirred for 8min to form concrete slurry.
Example 4
A concrete slurry is prepared by the following steps:
a. adding 100kg of Portland cement, 100kg of water and 10kg of water reducing agent into a stirring kettle, stirring at the rotating speed of 60r/min for 5min to form cement slurry;
b. adding 8kg of silane coupling agent and 120kg of polyurethane adhesive into the cement slurry, stirring at the rotating speed of 60r/min for 5min to form a premix;
c. 320kg of coarse aggregate and 180kg of fine aggregate are added into the premix, the rotating speed is 45r/min, and the mixture is stirred for 8min to form concrete slurry.
Example 5
A concrete slurry is prepared by the following steps:
a. adding 100kg of Portland cement, 100kg of water and 10kg of water reducing agent into a stirring kettle, stirring at the rotating speed of 60r/min for 5min to form cement slurry;
b. adding 8kg of silane coupling agent, 120kg of polyurethane adhesive, 15kg of glass fiber, 3kg of organic montmorillonite, 5kg of zircon powder, 0.2kg of 1, 2, 3, 10 b-tetrahydrofluoranthene, 10kg of nano lotus leaf powder and 30kg of ethanol into cement slurry, stirring for 5min at the rotating speed of 60r/min to form a premix;
c. 320kg of coarse aggregate and 180kg of fine aggregate are added into the premix, the rotating speed is 45r/min, and the mixture is stirred for 8min to form concrete slurry.
In this embodiment, the length of the glass fiber is 1 mm.
Example 6
A concrete slurry is prepared by the following steps:
a. adding 100kg of Portland cement, 100kg of water and 10kg of water reducing agent into a stirring kettle, stirring at the rotating speed of 60r/min for 5min to form cement slurry;
b. adding 8kg of silane coupling agent, 120kg of polyurethane adhesive, 17.5kg of glass fiber, 4kg of organic montmorillonite, 7.5kg of zircon powder, 0.35kg of 1, 2, 3, 10 b-tetrahydrofluoranthene, 12.5kg of nano lotus leaf powder and 35kg of ethanol into cement slurry, rotating at 60r/min, and stirring for 5min to form a premix;
c. 320kg of coarse aggregate and 180kg of fine aggregate are added into the premix, the rotating speed is 45r/min, and the mixture is stirred for 8min to form concrete slurry.
In this embodiment, the length of the glass fiber is 1.5 mm.
Example 7
A concrete slurry is prepared by the following steps:
a. adding 100kg of Portland cement, 100kg of water and 10kg of water reducing agent into a stirring kettle, stirring at the rotating speed of 60r/min for 5min to form cement slurry;
b. adding 8kg of silane coupling agent, 120kg of polyurethane adhesive, 20kg of glass fiber, 5kg of organic montmorillonite, 10kg of zircon powder, 0.5kg of 1, 2, 3, 10 b-tetrahydrofluoranthene, 15kg of nano lotus leaf powder and 40kg of ethanol into cement slurry, stirring at the rotating speed of 60r/min for 5min to form a premix;
c. 320kg of coarse aggregate and 180kg of fine aggregate are added into the premix, the rotating speed is 45r/min, and the mixture is stirred for 8min to form concrete slurry.
In this embodiment, the length of the glass fiber is 2 mm.
Example 8
A concrete slurry is prepared by the following steps:
a. adding 100kg of Portland cement, 100kg of water and 10kg of water reducing agent into a stirring kettle, stirring at the rotating speed of 60r/min for 5min to form cement slurry;
b. adding 8kg of silane coupling agent, 120kg of polyurethane adhesive, 18kg of glass fiber, 3kg of organic montmorillonite, 6kg of zircon powder, 0.3kg of 1, 2, 3, 10 b-tetrahydrofluoranthene, 12kg of nano lotus leaf powder and 33kg of ethanol into cement slurry, stirring at the rotating speed of 60r/min for 5min to form a premix;
c. 320kg of coarse aggregate and 180kg of fine aggregate are added into the premix, the rotating speed is 45r/min, and the mixture is stirred for 8min to form concrete slurry.
In this embodiment, the length of the glass fiber is 1 mm.
Example 9
A method of constructing a town road, referring to fig. 1 and 2, comprising the steps of:
s1, excavating a foundation pit, which comprises the following specific steps:
and excavating a foundation pit along the extending direction of the road design according to the design drawing.
S2, laying a base layer, specifically comprising the following steps:
the bottom of the foundation pit is compacted through a road roller, and then stones are laid to form a base layer, wherein the thickness of the base layer is 50 cm.
S3, paving a cushion layer, which specifically comprises the following steps:
and gravel is laid on the base layer to form a cushion layer, and the thickness of the cushion layer is 20 cm.
S4, paving a surface layer, comprising:
s41, paving a polyurethane surface layer, which comprises the following specific steps:
and pouring hot-melt polyurethane on the surface of the cushion layer to form a polyurethane surface layer, wherein the thickness of the polyurethane surface layer is 1 cm.
S42, paving an asphalt surface layer, which comprises the following steps:
and paving the asphalt mixture on the polyurethane surface layer to form an asphalt surface layer, wherein the thickness of the asphalt surface layer is 10 cm.
S43, paving a concrete surface layer, which comprises the following steps:
and pouring concrete slurry on the asphalt surface layer to form a concrete surface layer, wherein the distance from the top of the concrete surface layer to the top of the asphalt surface layer is 5 cm.
In this example, the concrete slurry of example 8 was used as the concrete slurry, and in other examples, the concrete slurry of examples 1 to 7 was used as the concrete slurry.
Comparative example 1
The difference from example 8 is that:
in step b, polyurethane adhesive is not added.
Comparative example 2
The difference from example 8 is that:
in step b, adding organic montmorillonite is eliminated.
Comparative example 3
The difference from example 8 is that:
in step b, zircon powder is not added.
Comparative example 4
The difference from example 8 is that:
in step b, 1, 2, 3, 10 b-tetrahydrofluoranthene is not added.
Comparative example 5
The difference from example 8 is that:
and (b) removing the addition of the nano lotus leaf powder.
Experiment 1
The 7d compressive strength (MPa) and 28d compressive strength (MPa) of examples 1 to 8 and comparative examples 1 to 5 were measured according to GB/T50081-2002 Standard test methods for mechanical Properties of ordinary concrete.
Experiment 2
The impermeability and frost resistance of examples 1 to 8 and comparative examples 1 to 5 were tested according to the water penetration resistance test in GB/T50082-2009 Standard test methods for Long-term Performance and durability of ordinary concrete.
Experiment 3
According to the thickness proportion of the polyurethane surface course, the asphalt surface course and the concrete surface course in the example 9, pavement samples are prepared according to the size of the samples in GB/T50082-2009 Standard test method for Long-term Performance and durability of ordinary concrete by using the method of the example 9, and the 7d compressive strength (MPa) and the 28d compressive strength (MPa) of the pavement samples are detected.
Specific detection data are shown in Table 1
TABLE 1
As can be seen from table 1, comparing the data of comparative example 1 and example 8, it can be seen that the addition of the polyurethane adhesive to the concrete slurry effectively increases the anti-permeability grade of the sample prepared from the concrete slurry, and further increases the anti-permeability grade of the concrete surface layer, so that rainwater is not easy to penetrate through the road and infiltrate into the soil under the road during heavy rain, and the decrease of the structural strength of the soil due to high water content is reduced.
Comparing the data of comparative example 2 and example 8, it can be seen that the organic montmorillonite can effectively cooperate with the glass fiber, so that the compressive strength of the sample prepared by the concrete slurry is increased, and the structural strength of the concrete surface layer is better.
Comparing the data of comparative example 3 with the data of example 8, it can be seen that adding the zircon powder effectively improves the compressive strength of the sample prepared from the concrete slurry, so that the structural strength of the concrete surface layer is better, the sample is not easy to crack, and the service life of the pavement is longer.
Comparing the data of comparative example 4 and the data of example 8, it can be seen that the addition of 1, 2, 3, 10 b-tetrahydrofluoranthene effectively improves the frost resistance grade of the sample prepared from the concrete slurry, so that the concrete surface layer is not easy to frost crack, is better suitable for cold regions, and has wider applicability.
Comparing the data of comparative example 5 and example 8, it can be seen that the addition of the nano lotus leaf powder effectively improves the impermeability strength of the sample prepared from the concrete slurry, and further improves the impermeability of the concrete surface layer, and rainwater is not easy to seep.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (4)
1. A municipal road construction method is characterized by comprising the following steps: the method comprises the following steps:
s1, excavating a foundation pit;
s2, laying a base layer;
s3, laying a cushion layer;
s4, paving a surface layer, comprising:
s41, paving a polyurethane surface layer;
s42, paving an asphalt surface layer;
s43, paving a concrete surface layer;
the concrete surface layer is formed by pouring concrete grout;
the concrete slurry comprises the following components in parts by weight:
100 parts of Portland cement;
400 portions of coarse aggregate;
150 portions of fine aggregate and 200 portions of fine aggregate;
100 portions and 150 portions of polyurethane adhesive;
5-10 parts of a silane coupling agent;
90-110 parts of water;
15-20 parts of glass fiber;
the length of the glass fiber is 1-2 mm;
3-5 parts of organic montmorillonite;
0.2-0.5 part of 1, 2, 3, 10 b-tetrahydrofluoranthene;
30-40 parts of ethanol.
2. The town road construction method according to claim 1, wherein: the concrete slurry also comprises the following components in parts by weight:
5-10 parts of zircon powder.
3. The town road construction method according to claim 1, wherein: the concrete slurry also comprises the following components in parts by weight:
10-15 parts of nano lotus leaf powder.
4. The town road construction method according to claim 1, wherein: the preparation method of the concrete slurry comprises the following steps:
a. mixing portland cement and water to form a cement slurry;
b. adding a silane coupling agent, a polyurethane adhesive, glass fiber, organic montmorillonite, 1, 2, 3, 10 b-tetrahydrofluoranthene and ethanol into cement slurry, and uniformly stirring to form a premix;
c. adding the coarse aggregate and the fine aggregate into the premix, and uniformly stirring to form concrete slurry.
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| CN110862253A (en) * | 2019-12-05 | 2020-03-06 | 深圳市奥城景观工程设计有限公司 | Landscape pool construction method |
| CN110965425B (en) * | 2019-12-24 | 2021-06-01 | 广州市芳村建筑工程有限公司 | Asphalt concrete pavement construction method |
| CN111101416A (en) * | 2019-12-27 | 2020-05-05 | 广州市恒嘉建设有限公司 | Asphalt concrete pavement construction method |
| CN110952412A (en) * | 2019-12-31 | 2020-04-03 | 广州众粤市政园林设计工程有限公司 | Concrete pavement construction method |
| CN112663426B (en) * | 2020-12-22 | 2022-04-12 | 安徽峰明建设工程有限公司 | Construction method of highway asphalt pavement |
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| CN103664015B (en) * | 2013-09-21 | 2015-07-29 | 北京工业大学 | A kind of method utilizing cement production process classification to dispose organic polluted soil |
| CN104150843B (en) * | 2014-08-25 | 2015-11-18 | 福建巨岸建设工程有限公司 | Modified bamboo fiber/polymer thing compound high tenacity concrete and preparation method thereof |
| US10876030B2 (en) * | 2016-04-21 | 2020-12-29 | Board Of Supervisors Of Louisiana State University And Agricultural And Mechanical College | Cement materials including shape memory polymer and methods of making cement materials |
| CN106702850B (en) * | 2016-11-09 | 2018-02-09 | 刘涛 | Prevent antifreeze road icy on road and its construction method |
| CN108529933B (en) * | 2017-03-06 | 2021-02-09 | 北京城建银龙混凝土有限公司 | Pervious concrete |
| CN107721284A (en) * | 2017-12-03 | 2018-02-23 | 徐州市金煜化工有限公司 | A kind of formula of concrete |
| CN108164218B (en) * | 2018-01-15 | 2020-10-16 | 深圳市宝金华混凝土有限公司 | Anti-crack concrete |
| CN109881764B (en) * | 2019-01-26 | 2020-09-08 | 广州市中港建设工程有限公司 | Method for additionally installing existing road underground drainage pipeline |
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