CN114180917A - Pavement-paved filling type large-particle-size cement-stabilized macadam base material and method - Google Patents
Pavement-paved filling type large-particle-size cement-stabilized macadam base material and method Download PDFInfo
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- CN114180917A CN114180917A CN202111573308.1A CN202111573308A CN114180917A CN 114180917 A CN114180917 A CN 114180917A CN 202111573308 A CN202111573308 A CN 202111573308A CN 114180917 A CN114180917 A CN 114180917A
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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
- C04B28/10—Lime cements or magnesium oxide cements
- C04B28/12—Hydraulic lime
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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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/06—Quartz; Sand
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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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/38—Fibrous materials; Whiskers
- C04B14/42—Glass
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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
- 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
- C04B18/04—Waste materials; Refuse
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/10—Burned or pyrolised refuse
-
- 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
- C04B18/04—Waste materials; Refuse
- C04B18/14—Waste materials; Refuse from metallurgical processes
- C04B18/141—Slags
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention relates to the technical field of highway materials, in particular to a pavement-paved filling type large-particle-size cement stabilized macadam base material and a method, wherein the pavement-paved filling type large-particle-size cement stabilized macadam base material is prepared from the following materials in parts by weight: 10-20 parts of cement; 10-20 parts of medium sand; 10-20 parts of fine sand; 60-80 parts of stones; 40-50 parts of slag; 20-30 parts of coal slag; 20-30 parts of lime powder; 10-20 of glass fiber net. A preparation method of a road surface paving filling type large-particle size cement stabilized macadam base material comprises the following steps: s1: treating the old pavement, removing foreign matters on the old pavement, rolling the old pavement by a road roller, and then sprinkling water and drying the old pavement; s2: spreading lime powder, spreading the lime powder on the old road surface treated in the step S1, rolling and flattening by a road roller, and then spraying water and drying in the air. According to the invention, the multilayer glass fiber mesh is embedded in the concrete base layer during construction, so that the base layer has higher deformation resistance and higher bending tensile strength, the cracking phenomenon of the pavement base layer can be effectively prevented, and the service life of the highway is prolonged.
Description
Technical Field
The invention relates to the technical field of highway materials, in particular to a pavement paving filling type large-particle size cement stabilized macadam base material and a method.
Background
The highway is constructed according to the national technical standard and is approved by the highway administration department, and comprises highways, first-level highways, second-level highways, third-level highways and fourth-level highways, but does not comprise lanes naturally formed in the field or the countryside. The highway is mainly used for driving automobiles and has certain technical standards and facilities, and the highway is paved by using base materials in the construction process, so that the highway has better durability.
Chinese patent No. 201110433843.7 discloses a phosphogypsum highway base material and a preparation method thereof, which is prepared from the following raw materials in parts by weight: 40-80 parts of phosphogypsum, 0.5-5 parts of diethylaminopropylamine, 0.1-0.5 part of polycarboxylic acid water reducing agent, 10-40 parts of sandstone and 5-40 parts of water quenching slag. The preparation method comprises the following steps: (1) dehydrating and crushing phosphogypsum; (2) uniformly mixing phosphogypsum, sandstone and water-quenched slag to obtain a material A; (3) uniformly mixing a polycarboxylic acid water reducing agent with the material A to obtain a material B; (4) adding diethylaminopropylamine into the material B, and uniformly mixing to obtain a material C; (5) and adding water into the material C, and uniformly stirring to obtain a finished product. The invention uses the phosphogypsum as the main raw material, widens the utilization path of the phosphogypsum, relieves the environmental protection pressure, reduces the comprehensive utilization and production energy consumption of the phosphogypsum, has wide market prospect and meets the requirements of circular economy and sustainable development. The invention has reasonable formula, simple manufacturing method and durable material, and is suitable for the construction of roads in areas with ardealite.
In the 201110433843.7 patent, although the utilization ways of the phosphogypsum can be widened, the deformation resistance and bending tensile strength of the material made of the phosphogypsum are weak, so that the base course of the highway is easy to crack, and the service life of the highway is further influenced; the cost is high, so that the construction cost of the highway is increased; and also fails to cement with the soil, resulting in poor adhesion between soil particles. Therefore, it is desirable to design a road-paving filling type large-particle-size cement stabilized macadam base material and a method thereof to solve the above problems.
Disclosure of Invention
The invention aims to provide a pavement-paving filling type large-particle-size cement stabilized macadam base material and a method thereof, and aims to solve the problems that a road is easy to crack, high in cost and incapable of being cemented with soil in the background technology.
The technical scheme of the invention is as follows: a road surface laying filling type large-particle size cement stabilized macadam base material comprises the following materials in parts by weight:
10-20 parts of cement;
10-20 parts of medium sand;
10-20 parts of fine sand;
60-80 parts of stones;
40-50 parts of slag;
20-30 parts of coal slag;
20-30 parts of lime powder;
10-20 of glass fiber net.
A preparation method of a road surface paving filling type large-particle size cement stabilized macadam base material comprises the following steps:
s1: treating the old pavement, removing foreign matters on the old pavement, rolling the old pavement by a road roller, and then sprinkling water and drying the old pavement;
s2: spreading lime powder, spreading the lime powder on the old road surface treated in the step S1, rolling and flattening by using a road roller, and then spraying water and drying in the air;
s3: paving the slag and the coal cinder, mixing the slag and the coal cinder according to a ratio of 2:1, and paving the mixture on the lime powder road surface rolled in the step S2;
s4: rolling, namely rolling the slag and cinder road surface in the step S3 by using a road roller;
s5: sprinkling water, namely spraying water to wet the slag and cinder pavements rolled in the step S4 and then airing;
s6: performing secondary rolling, namely rolling the slag and cinder pavements dried in the step S5 again;
s7: reinforcing, namely adding water into cement, medium sand, fine sand and stones in a stirring tank, mixing to prepare concrete, paving the concrete on the slag and cinder road surface in the step S6, paving a glass fiber net on the unset cement concrete road surface, paving the concrete, and repeating the steps for 3-5 times to prepare a reinforced base layer;
s8: and (5) curing, namely spraying water to the reinforced base layer in the step S6 every 4 hours until the concrete of the base layer is completely solidified.
Further, the unevenness of the old road surface in the S1 is filled with slag, and the sprinkling time is 2-5 times.
Further, the thickness of the lime powder in the S2 after grinding is 2-5cm, and the watering frequency is 2-5 times.
Further, in the S3, the mixing ratio of the slag to the cinder is 2:1, and the spreading thickness of the slag and the cinder is 5-8 cm.
Furthermore, the number of times of sprinkling water in the S5 is 2-5, and the airing time is more than 200 h.
Further, the model of the S4 medium-pressure road roller is 10 tonnages, and the grinding times are 2-5 times.
Further, the model of the S6 medium-pressure road roller is 14 tonnages, and the rolling times are 2-5 times.
Further, in the S7, the cement: medium sand: fine sand: stone: water = 2: 1: 1: 6: 1.5, and the temperature during mixing is 5-35 ℃.
Further, the thickness of the concrete base layer in the S7 is 5-10cm, and the number of the glass fiber net tiling layers is 3-5.
The invention provides a road surface paving filling type large-particle size cement stabilized macadam base material and a method thereof through improvement, compared with the prior art, the invention has the following improvement and advantages:
(1) according to the invention, the multilayer glass fiber mesh is embedded in the concrete base layer during construction, so that the base layer has higher deformation resistance and higher bending tensile strength, the cracking phenomenon of the pavement base layer can be effectively prevented, and the service life of the highway is prolonged.
(2) The invention utilizes the rolled coal slag and slag to support the concrete base layer, thereby not only saving the material cost, but also ensuring that the concrete base layer does not come to be hollow, thereby fully playing the bearing function of the concrete base layer, and the modulus of resilience of the concrete base layer can reach more than 100 MPa.
(3) The lime powder is flatly paved on the old pavement, so that calcium silicate, calcium aluminate and calcium ferrite which can generate a cementing body are used for cementing the soil, the lime soil has higher strength and water resistance, and the adhesion strength among soil particles is increased.
(4) According to the invention, the medium sand and the fine sand are reasonably matched, so that the problems that the concrete is easy to layer and a thick laitance layer appears at a construction part due to the fact that the fine sand is used for construction are effectively avoided, and the microstructure of the hardened concrete is uniform. The concrete has high strength, and the serious layering and cracking problems of the concrete are prevented.
Drawings
The invention is further explained below with reference to the figures and examples:
FIG. 1 is an overall flow diagram of the present invention;
FIG. 2 is a flow chart of the present invention for treating an old pavement;
FIG. 3 is a flow chart of lime powder spreading according to the present invention;
FIG. 4 is an enhancement flow chart of the present invention;
FIG. 5 is a curing flow chart of the present invention.
Reference numerals indicate the same.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 5, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The invention provides a pavement-laying filling type large-particle-size cement-stabilized macadam base material which is shown in figures 1-5 and comprises the following materials in parts by weight:
20 parts of cement;
10, medium sand;
10 parts of fine sand;
stones 60;
50 of slag;
30 of coal cinder;
30 parts of lime powder;
a glass fiber web 20.
A preparation method of a road surface paving filling type large-particle size cement stabilized macadam base material comprises the following steps:
s1: treating an old pavement, removing foreign matters on the old pavement, flattening the old pavement by adopting a road roller, then sprinkling water and drying the old pavement, filling uneven positions of the old pavement by adopting slag, and sprinkling for 3 times;
s2: spreading lime powder, spreading the lime powder on the old road surface treated in the step S1, rolling and flattening by using a road roller, then spraying water, and airing, wherein the thickness of the rolled lime powder is 3cm, and the spraying time is 3 times;
s3: paving the slag and the coal cinder, mixing the slag and the coal cinder according to a ratio of 2:1, and paving the mixture on the lime powder pavement rolled in the step S2, wherein the mixing ratio of the slag and the coal cinder is 2:1, and the paving thickness of the slag and the coal cinder is 5 cm;
s4: rolling, namely rolling the slag and cinder road surface in the step S3 by using a road roller, wherein the model of the road roller is 10 tonnages, and the rolling times are 3 times;
s5: sprinkling water, namely spraying water to the ground slag and cinder pavements in the step S4 for wetting and then airing, wherein the sprinkling time is 5 times, and the airing time is 300 hours;
s6: performing secondary rolling, namely rolling the slag and cinder road surface dried in the step S5 again, wherein the model of the road roller is 14 tonnages, and the rolling times are 3 times;
s7: strengthening, namely adding water into cement, medium sand, fine sand and stones in a stirring tank for mixing to prepare concrete, paving the concrete on the slag and cinder road surface in S6, and mixing the cement: medium sand: fine sand: stone: water = 2: 1: 1: 6: 1.5, paving the glass fiber net on the unset cement concrete pavement, paving concrete, repeating the steps for 3 times to prepare a reinforced base layer, and reinforcing the concrete roadbed by using multiple layers of glass fiber nets to ensure that the anti-cracking performance of the roadbed is better;
s8: and (4) curing, namely spraying water to the reinforced base layer in the step S6 every 4 hours for curing once to prevent the concrete from being wholly cured due to water shortage until the base layer concrete is completely cured.
Further, in S1, the unevenness of the old road surface is filled with slag, and the sprinkling frequency is 3 times, so that the old road surface is fully wet and settled.
Further, the thickness of the lime powder after rolling in the S2 is 3cm, and the watering frequency is 3 times, so that the lime powder and the soil are cemented.
Further, in the S3, the mixing ratio of the slag to the coal slag is 2:1, the paving thickness of the slag and the coal slag is 5cm, the slag and the coal slag are waste materials for recycling, the cost is low, and the construction cost of the highway is reduced.
Furthermore, the number of water spraying times in S5 is 5, and the airing time is 300h, so that the slag and the coal slag are fully settled.
Further, the model of the road roller in S4 is 10 tonnage, the rolling frequency is 3 times, and the rolling before settlement is completed by using the road roller with 10 tonnage.
Further, the model of the road roller in S6 is 14 tonnage, the rolling frequency is 3 times, and the rolling after settlement is completed by using the 14 tonnage road roller.
Further, the cement in S7: medium sand: fine sand: stone: water = 2: 1: 1: 6: 1.5, the temperature is 25 ℃ during mixing, so that the performance of the prepared concrete after solidification is more stable and the strength is higher.
Further, the thickness of the concrete base layer in S7 is 7cm, so that the concrete base layer has a sufficient thickness, and the number of glass fiber net laying layers is 3, so that the strength of the concrete base layer is higher by using multiple layers of glass fiber nets.
The working principle of the invention is as follows: s1: treating the old pavement, removing foreign matters on the old pavement, rolling the old pavement by a road roller, and then sprinkling water and drying the old pavement; s2: spreading lime powder, spreading the lime powder on the old road surface treated in the step S1, rolling and flattening by using a road roller, and then spraying water and drying in the air; s3: paving the slag and the coal cinder, mixing the slag and the coal cinder according to a ratio of 2:1, and paving the mixture on the lime powder road surface rolled in the step S2; s4: rolling, namely rolling the slag and cinder road surface in the step S3 by using a road roller; s5: sprinkling water, namely spraying water to wet the slag and cinder pavements rolled in the step S4 and then airing; s6: performing secondary rolling, namely rolling the slag and cinder pavements dried in the step S5 again; s7: reinforcing, namely adding water into cement, medium sand, fine sand and stones in a stirring tank, mixing to prepare concrete, paving the concrete on the slag and cinder road surface in the step S6, paving a glass fiber net on the unset cement concrete road surface, paving the concrete, and repeating the steps for 3-5 times to prepare a reinforced base layer; s8: and (5) curing, namely spraying water to the reinforced base layer in the step S6 every 4 hours until the concrete of the base layer is completely solidified.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a road surface lays filled large-grain size cement and stabilizes rubble basic unit material which characterized in that: the material is prepared from the following materials in parts by weight:
10-20 parts of cement;
10-20 parts of medium sand;
10-20 parts of fine sand;
60-80 parts of stones;
40-50 parts of slag;
20-30 parts of coal slag;
20-30 parts of lime powder;
10-20 of glass fiber net.
2. A preparation method of a road surface paving filling type large-particle size cement stabilized macadam base material is characterized by comprising the following steps of: the method comprises the following steps:
s1: treating the old pavement, removing foreign matters on the old pavement, rolling the old pavement by a road roller, and then sprinkling water and drying the old pavement;
s2: spreading lime powder, spreading the lime powder on the old road surface treated in the step S1, rolling and flattening by using a road roller, and then spraying water and drying in the air;
s3: paving the slag and the coal cinder, mixing the slag and the coal cinder according to a ratio of 2:1, and paving the mixture on the lime powder road surface rolled in the step S2;
s4: rolling, namely rolling the slag and cinder road surface in the step S3 by using a road roller;
s5: sprinkling water, namely spraying water to wet the slag and cinder pavements rolled in the step S4 and then airing;
s6: performing secondary rolling, namely rolling the slag and cinder pavements dried in the step S5 again;
s7: reinforcing, namely adding water into cement, medium sand, fine sand and stones in a stirring tank, mixing to prepare concrete, paving the concrete on the slag and cinder road surface in the step S6, paving a glass fiber net on the unset cement concrete road surface, paving the concrete, and repeating the steps for 3-5 times to prepare a reinforced base layer;
s8: and (5) curing, namely spraying water to the reinforced base layer in the step S6 every 4 hours until the concrete of the base layer is completely solidified.
3. The method for preparing the road-surfacing filling type large-particle-size cement stabilized macadam base material according to claim 2, wherein the method comprises the following steps: and S1, filling the unevenness of the old road surface with slag, wherein the sprinkling time is 2-5 times.
4. The method for preparing the road-surfacing filling type large-particle-size cement stabilized macadam base material according to claim 2, wherein the method comprises the following steps: the thickness of the lime powder in the S2 after rolling is 2-5cm, and the watering frequency is 2-5 times.
5. The method for preparing the road-surfacing filling type large-particle-size cement stabilized macadam base material according to claim 2, wherein the method comprises the following steps: and in the S3, the mixing ratio of the slag to the coal slag is 2:1, and the spreading thickness of the slag and the coal slag is 5-8 cm.
6. The method for preparing the road-surfacing filling type large-particle-size cement stabilized macadam base material according to claim 2, wherein the method comprises the following steps: and the water spraying frequency in the S5 is 2-5 times, and the airing time is more than 200 h.
7. The method for preparing the road-surfacing filling type large-particle-size cement stabilized macadam base material according to claim 2, wherein the method comprises the following steps: the model of the S4 medium-pressure road roller is 10 tonnages, and the grinding times are 2-5 times.
8. The method for preparing the road-surfacing filling type large-particle-size cement stabilized macadam base material according to claim 2, wherein the method comprises the following steps: the model of the road roller in the S6 is 14 tonnages, and the rolling times are 2-5 times.
9. The method for preparing the road-surfacing filling type large-particle-size cement stabilized macadam base material according to claim 2, wherein the method comprises the following steps: cement in the S7: medium sand: fine sand: stone: water = 2: 1: 1: 6: 1.5, and the temperature during mixing is 5-35 ℃.
10. The method for preparing the road-surfacing filling type large-particle-size cement stabilized macadam base material according to claim 2, wherein the method comprises the following steps: the thickness of the concrete base layer in the S7 is 5-10cm, and the number of the glass fiber net tiling layers is 3-5.
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| CN202111573308.1A CN114180917A (en) | 2021-12-21 | 2021-12-21 | Pavement-paved filling type large-particle-size cement-stabilized macadam base material and method |
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| CN202111573308.1A CN114180917A (en) | 2021-12-21 | 2021-12-21 | Pavement-paved filling type large-particle-size cement-stabilized macadam base material and method |
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|---|---|---|---|---|
| JP2000178910A (en) * | 1998-12-14 | 2000-06-27 | Sumitomo Forestry Co Ltd | Paving structure |
| CN110273338A (en) * | 2019-07-18 | 2019-09-24 | 上海建工七建集团有限公司 | A kind of rigid road base and flexible roadbed interface and its processing method |
| CN113651576A (en) * | 2021-08-25 | 2021-11-16 | 江苏拓鼎环保科技股份有限公司 | Cement stabilized macadam mixture and preparation process thereof |
-
2021
- 2021-12-21 CN CN202111573308.1A patent/CN114180917A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000178910A (en) * | 1998-12-14 | 2000-06-27 | Sumitomo Forestry Co Ltd | Paving structure |
| CN110273338A (en) * | 2019-07-18 | 2019-09-24 | 上海建工七建集团有限公司 | A kind of rigid road base and flexible roadbed interface and its processing method |
| CN113651576A (en) * | 2021-08-25 | 2021-11-16 | 江苏拓鼎环保科技股份有限公司 | Cement stabilized macadam mixture and preparation process thereof |
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| Title |
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| 温伟标等: "碾压混凝土基层在广梧高速公路中的应用研究", 《广东公路交通》 * |
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