CN111676827A - High-performance wide-temperature-range epoxy asphalt concrete full-width paving construction method - Google Patents
High-performance wide-temperature-range epoxy asphalt concrete full-width paving construction method Download PDFInfo
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- CN111676827A CN111676827A CN202010584877.5A CN202010584877A CN111676827A CN 111676827 A CN111676827 A CN 111676827A CN 202010584877 A CN202010584877 A CN 202010584877A CN 111676827 A CN111676827 A CN 111676827A
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- paving
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- asphalt concrete
- epoxy asphalt
- epoxy resin
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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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
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
- E01C19/18—Devices for distributing road-metals mixed with binders, e.g. cement, bitumen, without consolidating or ironing effect
- E01C19/185—Devices for distributing road-metals mixed with binders, e.g. cement, bitumen, without consolidating or ironing effect for both depositing and spreading-out or striking-off the deposited mixture
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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
- E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
- E01C7/26—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders mixed with other materials, e.g. cement, rubber, leather, fibre
- E01C7/265—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders mixed with other materials, e.g. cement, rubber, leather, fibre with rubber or synthetic resin, e.g. with rubber aggregate, with synthetic resin binder
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
Abstract
The invention discloses a high-performance wide-temperature-range epoxy asphalt concrete full-width paving construction method, which comprises the following specific steps of: (1) epoxy asphalt concrete; (2) carrying out epoxy zinc-rich paint spraying; (3) epoxy resin is subjected to constant temperature control; (4) stirring the epoxy resin; (5) brushing the epoxy resin waterproof bonding layer for construction; (6) adding an epoxy resin binder; (7) paving the epoxy asphalt concrete in a full-width paving mode; (8) automatically scraping the epoxy asphalt concrete which does not flow on the side wall of the screed plate behind the spiral distributing chute of the paver; (9) guiding rolling of the paved epoxy asphalt concrete by adopting an intelligent rolling way; (10) detecting the thickness of the bridge deck pavement layer in a monitoring mode; (11) the monitoring mode and the early defect early warning monitoring mode of the paved layer, and the quality and the service life of the paved layer are detected. The invention solves the problem of low mechanization and intelligence degree of the traditional epoxy asphalt concrete.
Description
Technical Field
The invention relates to the technical field of bridge deck pavement, in particular to a high-performance wide-temperature-range epoxy asphalt concrete full-width paving construction method.
Background
With the development of the construction of large-span steel bridges in China, various bridge deck pavement materials are applied, wherein three pavement schemes of modified asphalt SMA, cast asphalt concrete and epoxy asphalt concrete are applied more, and statistics shows that the number of bridges using the epoxy asphalt concrete as a bridge deck pavement design scheme in China is the largest, and the bridge deck pavement materials are sequentially applied to the pavement of large-span steel bridges such as soaring bridges, Hangzhou gulf sea bridges, Zhanjiang gulf bridges and the like. However, the epoxy asphalt concrete pavement has the following main problems:
firstly, the traditional epoxy asphalt concrete construction adopts lane division or width division side division to carry out construction, and the drawback mainly has: the construction efficiency is low, the construction times are multiple, the construction period is long, and the material loss is large; the longitudinal construction cold joint is unavoidable, and the longitudinal cold joint is easy to have water seepage risk and is a ring joint with weak quality; in lane dividing or amplitude dividing construction, in order to enable joints to be smoother, joint cutting is often needed, the steel plate is easily damaged by the joint cutting, pollution to the bridge deck is serious during joint cutting, and material waste is large and uneconomical.
Secondly, in the process of paving and constructing the steel bridge deck, the actual thickness of the paving layer has certain deviation from the design value under the condition of flatness of the base surface of the bridge deck plate. The paving layer is too thick, so that the uniform distribution load is too large, the stress influence on the main structure of the bridge is large, and meanwhile, the paving layer is too thick, the using amount of the mixture is large, and the method is not economical; the phenomenon of water seepage and fatigue cracking is easily caused when the pavement layer is too thin, and further diseases such as cracking, delamination and the like are caused. Thus ensuring the thickness of the paving layer is of great importance for life expectancy and cost.
Moreover, traditional epoxy asphalt concrete adopts the closely knit structure of suspension more, and the porosity is less, receives the restriction of gradation and construction technology, and traditional hot mix epoxy asphalt concrete construction mechanization, intelligent degree are low, and is not tight to control such as construction temperature, the layer thickness of paving, rolling homogeneity, and the layer of paving appears early disease too early, influences driving comfort and security.
Disclosure of Invention
In view of the above problems, the present invention aims to provide a method for solving the problem of low mechanization and intelligence degree of the traditional epoxy asphalt concrete; the high-performance wide-temperature-range epoxy asphalt concrete full-width paving construction method solves the problems that the construction efficiency of the traditional epoxy asphalt concrete adopting lane or side-by-side construction is low, the construction times are multiple, the material loss is large, the construction period is long, the longitudinal construction cold joint and the joint cutting are polluted and the like.
In order to achieve the purpose, the invention provides a high-performance wide-temperature-range epoxy asphalt concrete full-width paving construction method, which comprises the following specific steps:
(1) carrying out epoxy asphalt concrete by adopting a coarse aggregate framework filling volume method;
(2) adopting a factory building with intelligent movable configuration to spray the epoxy zinc-rich paint;
(3) a mobile constant temperature room is adopted to carry out constant temperature control on the epoxy resin;
(4) stirring the epoxy resin by adopting an intelligent stirring system;
(5) brushing the epoxy resin waterproof bonding layer by adopting an intelligent brushing machine system;
(6) epoxy resin is pumped, mixed, dissolved and thrown into a matched system to add epoxy resin binder;
(7) paving the epoxy asphalt concrete in a full-width paving mode;
(8) automatically scraping the epoxy asphalt concrete which does not flow on the side wall of the ironing plate behind the spiral material distribution groove of the paver by adopting an automatic scraper of the paver;
(9) guiding rolling of the paved epoxy asphalt concrete by adopting an intelligent rolling way;
(10) detecting the thickness of the bridge deck pavement layer by adopting a pavement layer thickness uniformity monitoring mode;
(11) the quality and the service life of the paved layer are detected by adopting a paving layer compactness uniformity monitoring mode and a paving layer early-stage defect early-warning monitoring mode.
In some embodiments, the coarse aggregate skeleton filling volume method is to measure the void volume of the main skeleton mineral aggregate and calculate the void volume, so that the sum of the fine aggregate volume, the asphalt volume, the mineral powder volume and the final design void volume of the asphalt mixture is equal to the void volume of the main skeleton;
the mass percentage, the oilstone ratio, the loose-packing clearance rate of the coarse aggregate and the fine aggregate in a tamping state and the design clearance rate of the mixture satisfy the following equations:
qc+qf+qp＝100 (1-1)
in the formula, qc、qf、qpThe weight percentages of coarse aggregate, fine aggregate and mineral powder are respectively; q. q.saIs the mass percentage of the asphalt; vDRCThe gap rate of the coarse aggregate in a dry tamping state; vDSDesigning the void ratio of the asphalt mixture; gamma raysThe coarse aggregate compact packing density; gamma rayfAnd gammapThe apparent densities of the fine aggregate and the mineral powder are respectively; gamma rayaIs the relative density of the asphalt; vDRCCan be measured by experiment
In the formula, ds is the main aggregate packing density; dt is the apparent density of the main aggregate.
In some embodiments, an intelligent movable factory building is configured to improve the uniformity of the construction quality of the epoxy zinc-rich paint and the effective operation time, solve the problem that the epoxy zinc-rich paint construction is influenced by wind speed, sunlight radiation and the like, and provide an effective way for improving the working environment of workers and shortening the construction period.
In some embodiments, the mobile thermostatic chamber is a closed box body and has the functions of heating, refrigerating and temperature control, and the bottom and the side walls adopt grid type chutes so as to facilitate the flow of hot air and ensure the uniformity of the heating temperature of the epoxy resin.
In some embodiments, the intelligent stirring system comprises 2 stirring barrels and pumping barrels with the capacity of 100L, wherein the bottom of each stirring barrel is a conical funnel-shaped barrel, valves are respectively arranged at the bottom of each stirring barrel and the bottom of each pumping barrel, spoilers are respectively arranged on the inner walls of each stirring barrel and the corresponding pumping barrel, and stirrers which adopt multilayer stirring blades and are adjustable in rotating speed and frequency conversion are respectively arranged at the bottom of each stirring barrel and the bottom of each pumping barrel. (the mixing tank and the pumping tank are 2 buckets with 100L capacity and conical funnel-shaped bottoms, valves are arranged at the bottoms, the mixing and the pumping are not interfered with each other, spoilers are arranged on the tank wall to ensure the thorough mixing of the mixing, and the mixing efficiency is improved by adopting a mixer with a plurality of layers of mixing blades with adjustable rotating speed and frequency conversion)
In some embodiments, the intelligent stirring system comprises a pumping system, an automatic walking brush system and a control system. When the bridge brush is used, the brush trolley longitudinally advances along a bridge, the brush transversely brushes the binder along the bridge deck, the brushing speed is adjusted according to the usage amount of the binder on the bridge deck, and the bridge brush has high mechanization and intelligent degree and good brushing uniformity.
In some embodiments, the epoxy resin pumping, mixing, dissolving and dispensing matching system comprises an epoxy resin constant temperature room, an epoxy resin pumping system, a mixing, dissolving and stirring system and a control system; the temperature of the epoxy resin is controlled to be 60 +/-5 ℃; when the pumping system pipeline is used for the first time, the epoxy resin main agent and the curing agent are filled, and due to the effect of the one-way valve, materials in the pipeline cannot flow back into the barrel.
In some embodiments, 2 spreading machines with the same type and similar abrasion are adopted for spreading in a full-width spreading mode, so that the problem of cold joint construction in the longitudinal direction of the traditional spreading in a width-dividing and side-dividing manner or lane-dividing manner is effectively solved, the integrity of a spreading layer is ensured, the quality of the spreading layer is improved, and the construction efficiency is improved by 1 time.
In some embodiments, the automatic scraping material of the paver is arranged on the side wall of a screed plate behind a spiral material distributing groove, two sets of scraper supports are pushed to move in the same direction through two oil cylinders, the movement speed of the scrapers is controlled by adjusting the hydraulic flow regulating valve in due time according to the paving speed in the process, the repeated movement of the scrapers reduces the retention time of the mixture which does not flow, the generation of the material which is stuck when the hard block and the epoxy asphalt mixture are paved when the conventional asphalt mixture is paved is stopped, and the paving quality of the mixture is ensured.
In some embodiments, the intelligent rolling method is to use FLIR infrared thermal imaging technology and a non-nuclear density instrument to guide rolling by controlling temperature and detecting uniformity of compactness.
In some embodiments, the monitoring method of the pavement layer thickness uniformity is to adopt a high-precision laser profiler to detect the flatness of the base surface of a bridge deck plate before paving, adopt self-programmed computer data to fit infinite calculation software, optimize and determine the optimal length of a balance beam, adopt the proper length of the balance beam to pave in a full-width mode, and utilize a high-power three-dimensional (3D) ground penetrating radar to detect the thickness of the bridge deck pavement layer.
In some embodiments, the monitoring mode of the compactness uniformity of the pavement layer is to provide reference temperature for mixing, transporting, paving and rolling of the epoxy asphalt mixture by adopting an epoxy asphalt viscosity temperature change curve, and the construction temperature of each stage is strictly executed according to the viscosity temperature curve, so that the compactness and the porosity of the pavement layer can be ensured. The compaction characteristics of the epoxy asphalt concrete are mainly determined by the selection of a compactor, a compaction scheme, the compaction pass and the like, and a proper rolling process is determined through a test section; and during and after the epoxy asphalt mixture is compacted, testing the compactness and the void ratio of the pavement layer by using a non-nuclear density meter, and further evaluating the construction quality of the pavement layer. The early-stage defect early-warning monitoring mode of the pavement layer is that a self-developed intelligent infrared thermal imaging technology is adopted to monitor early-stage defects, early-stage diseases are determined by determining the temperature change of each part of the pavement layer, and the early-stage disease confirmation rate reaches 100%.
Compared with the prior art, the invention has the following advantages: the epoxy asphalt concrete is designed by adopting a 'coarse aggregate framework filling volume method', the epoxy zinc-rich paint spraying construction is configured into an intelligent movable workshop, the epoxy resin is controlled at constant temperature by adopting a movable constant-temperature room, the epoxy resin is stirred by adopting a self-developed intelligent stirring system, the epoxy resin (waterproof) bonding layer is constructed by adopting a self-developed intelligent epoxy resin binder brushing machine system, the epoxy resin binder is added by adopting a self-developed epoxy resin pumping, mixing, dissolving and throwing matching system, the epoxy asphalt concrete is paved by adopting a full-width paving technology, a paver automatic scraping system, an intelligent rolling technology, a paving layer thickness uniformity monitoring technology, a paving layer compactness uniformity monitoring technology, a paving layer early defect early-warning monitoring technology and the like, and the mechanical and intelligent hot-mixed epoxy asphalt concrete, The informatization' precedent of construction solves the problem that the anti-skid property of the traditional epoxy asphalt concrete is not ideal; the problems of low working efficiency, more construction times, longer construction period and longitudinal construction cold joint in lane or frame side construction are solved, and the problems of poor quality of the longitudinal cold joint and bridge floor pollution in joint cutting are solved. According to the viscosity temperature change curve of the epoxy asphalt, reference temperature is provided for mixing, transporting, paving and rolling of the epoxy asphalt mixture, and construction temperature in each stage is strictly executed according to the viscosity temperature curve, so that the compaction degree and the porosity of a pavement layer can be ensured. Meanwhile, the infrared thermal imaging technology is adopted to monitor the uniformity of the construction temperature in real time so as to guide the paving and rolling of the epoxy asphalt concrete, and the problem of segregation of the paving temperature and the rolling temperature is solved; the method comprises the steps of detecting the flatness of a base surface of a bridge deck plate by adopting a high-precision laser profiler, accurately mastering the base surface condition of the bridge deck plate, matching spreader balance beams with different lengths, adopting self-programmed computer data to fit infinite calculation software according to the requirement of the designed pavement layer thickness, optimizing and determining the optimal balance beam length to ensure the pavement layer thickness, adopting an early warning monitoring technology to find the early defects of the epoxy asphalt concrete, and taking measures to process. The invention has high degree of mechanization, intellectualization and informatization, and promotes the progress of the construction technology of the steel bridge deck hot-mixed epoxy asphalt concrete.
Detailed Description
The present invention will be described in further detail below.
Example 1 takes the pavement of a hot-mix epoxy asphalt concrete bridge pavement of a steel box girder bridge deck of a Tiger door two bridge (a south sand bridge) in Guangdong province as an example.
A high-performance wide-temperature-range epoxy asphalt concrete full-width paving construction method comprises the following specific steps: (1) carrying out epoxy asphalt concrete by adopting a coarse aggregate framework filling volume method; (2) adopting a factory building with intelligent movable configuration to spray the epoxy zinc-rich paint; (3) a mobile constant temperature room is adopted to carry out constant temperature control on the epoxy resin; (4) stirring the epoxy resin by adopting an intelligent stirring system; (5) brushing the epoxy resin waterproof bonding layer by adopting an intelligent brushing machine system; (6) epoxy resin is pumped, mixed, dissolved and thrown into a matched system to add epoxy resin binder; (7) paving the epoxy asphalt concrete in a full-width paving mode; (8) automatically scraping the epoxy asphalt concrete which does not flow on the side wall of the ironing plate behind the spiral material distribution groove of the paver by adopting an automatic scraper of the paver; (9) guiding rolling of the paved epoxy asphalt concrete by adopting an intelligent rolling way; (10) detecting the thickness of the bridge deck pavement layer in a pavement layer thickness uniformity monitoring mode; (11) and detecting the quality and the service life of the paved layer by adopting a paving layer compactness uniformity monitoring mode and a paving layer early defect early warning monitoring mode. The coarse aggregate skeleton filling volume method is to measure the void ratio of the main skeleton mineral aggregate and calculate the void volume, so that the sum of the fine aggregate volume, the asphalt volume, the mineral powder volume and the final designed void volume of the asphalt mixture is equal to the void volume of the main skeleton; the mass percentage of coarse aggregate, fine aggregate and mineral powder, the oilstone ratio, the loose-packing clearance of the coarse aggregate in a tamping state and the design porosity of the mixture satisfy the following equations:
qc+qf+qp＝100 (1-1)
in the formula, qc、qf、qpThe weight percentages of coarse aggregate, fine aggregate and mineral powder are respectively; q. q.saIs the mass percentage of the asphalt; vDRCThe gap rate of the coarse aggregate in a dry tamping state; vDSDesigning the void ratio of the asphalt mixture; gamma raysFor coarse aggregatePacking density; gamma rayfAnd gammapThe apparent densities of the fine aggregate and the mineral powder are respectively; gamma rayaIs the relative density of the asphalt; vDRCCan be measured by experiment
In the formula, ds is the main aggregate packing density; dt is the apparent density of the main aggregate.
The intelligent movable workshop is configured to improve the uniformity of the construction quality of the epoxy zinc-rich paint and the effective operation time, solve the problem that the construction of the epoxy zinc-rich paint is influenced by wind speed, sunlight radiation and the like, and provide an effective way for improving the working environment of workers and shortening the construction period. The movable constant temperature room is a closed box body and has the functions of heating, refrigerating and temperature control, and the bottom and the side wall adopt a grid type chute, so that hot air flow is facilitated, and the uniformity of the heating temperature of the epoxy resin is ensured. The intelligent stirring system comprises 2 stirring barrels with the capacity of 100L, a pumping barrel, valves, spoilers and stirrers, wherein the conical stirring barrels are arranged at the bottoms of the stirring barrels and the pumping barrel, the valves are respectively arranged at the bottoms of the stirring barrels and the pumping barrel, the spoilers are respectively arranged on the inner walls of the stirring barrels and the pumping barrel, and the stirrers which adopt multilayer stirring blades and have adjustable rotating speed and frequency conversion are respectively arranged at the bottoms of the stirring barrels and the pumping barrel. During the use, agitator and pumping bucket are 2 capacity 100L's bottom and are hopper-shaped's bucket for the toper, and bottom installation valve stirs and the mutual noninterference of pump sending, and the jar wall is provided with the spoiler, lets the stirring intensive mixing thoroughly, adopts the agitator of the adjustable multilayer stirring vane of rotational speed frequency conversion, improves stirring efficiency. The intelligent stirring system comprises a pumping system, an automatic walking brushing system and a control system. When the bridge brush is used, the brush trolley longitudinally moves along a bridge, the brush brushes the binder transversely along the bridge deck, the brushing speed is adjusted according to the usage amount of the binder on the bridge deck, and the bridge brush has high mechanization and intelligent degree and good brushing uniformity. The epoxy resin pumping, mixing, dissolving and feeding matching system comprises an epoxy resin constant-temperature room, an epoxy resin pumping system, a mixing, dissolving and stirring system and a control system; the temperature of the epoxy resin is controlled to be 60 +/-5 ℃; when the pumping system pipeline is used for the first time, the epoxy resin main agent and the curing agent are filled, and due to the effect of the one-way valve, materials in the pipeline cannot flow back into the barrel. The full-width paving mode adopts 2 paving machine echelons with the same type number and similar abrasion to pave, effectively avoids the problem of cold joint in the longitudinal construction of the traditional amplitude-division side-by-side paving or lane paving, ensures the integrity of a paving layer, improves the quality of the paving layer and improves the construction efficiency by 1 time.
The construction period of framing and sidetracking mirror image construction and full-frame construction is measured by taking a large sand water channel bridge as an example, and the following table is shown:
calculation method for framing and sidetracking mirror image construction period
Calculating and calculating construction period of full-width paving construction
The automatic material that dies of scraping of paver is the lateral wall of screed installed behind the spiral distributing chute, promotes two sets of scraper support syntropy motion through two hydro-cylinders, and the in-process adjusts hydraulic flow regulating valve control scraper velocity of motion in good time according to the speed of paving, through scraper repetitive motion, reduces the dwell time of the mixture that does not flow, stops the production of the material that dies when conventional bituminous mixture paves hard piece and epoxy asphalt mixture paves to this guarantees mixture quality of paving. The intelligent rolling mode adopts FLIR infrared thermal imaging technology and a non-nuclear density instrument, and rolling is guided by controlling temperature and detecting compactness uniformity. The monitoring method of the evenness of the paving layer thickness is that a high-precision laser profiler is adopted to detect the evenness of the base surface of the bridge deck plate before paving, self-programmed computer data is adopted to fit infinite calculation software, the optimal length of the balance beam is determined in an optimized mode, the proper length of the balance beam is adopted to carry out full-width paving, and a high-power three-dimensional (3D) ground penetrating radar is utilized to detect the thickness of the bridge deck paving layer. The pavement layer compactness uniformity monitoring mode is that the epoxy asphalt viscosity temperature change curve is adopted to provide reference temperature for mixing, transporting, paving and rolling of epoxy asphalt mixture, and the construction temperature of each stage is strictly executed according to the viscosity temperature curve, so that the compactness and the void ratio of the pavement layer can be ensured. The compaction characteristics of the epoxy asphalt concrete are mainly determined by the selection of a compactor, a compaction scheme, the compaction pass and the like, and a proper rolling process is determined through a test section; and during the rolling process of the epoxy asphalt mixture and after the compaction is finished, testing the compaction degree and the void ratio of the pavement layer by using a non-nuclear density meter, and further evaluating the construction quality of the pavement layer. The early defect early warning and monitoring mode of the pavement layer is that the self-developed intelligent infrared thermal imaging technology is adopted to monitor the early defects, the early diseases are determined by determining the temperature change of each part of the pavement layer, and the early disease confirmation rate reaches 100%.
Example 2
The project name is as follows: the Buddha mountain is a ring which is flat and surpasses the bridge; a place: a Buddha mountain; application time 2018-11-2018-12; engineering quantity: 30000m 2; the application effect is as follows: is good.
Example 3
The project name is as follows: stone-headed Yangtze river highway bridge; a place: stone heads; application time 2019-6-2019-7; engineering quantity: 40000m 2; the application effect is as follows: is good.
Example 4
The project name is as follows: a Xijiang grand bridge of a clear cloud high-speed highway; a place: zhaoqing; application time 2019-10-2019-11; engineering quantity: 25380m 2; the application effect is as follows: is good.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept herein, and it is intended to cover all such modifications and variations as fall within the scope of the invention.
Claims (12)
1. A high-performance wide-temperature-range epoxy asphalt concrete full-width paving construction method comprises the following specific steps:
(1) carrying out epoxy asphalt concrete by adopting a coarse aggregate framework filling volume method;
(2) adopting a factory building with intelligent movable configuration to spray the epoxy zinc-rich paint;
(3) a mobile constant temperature room is adopted to carry out constant temperature control on the epoxy resin;
(4) stirring the epoxy resin by adopting an intelligent stirring system;
(5) brushing the epoxy resin waterproof bonding layer by adopting an intelligent brushing machine system;
(6) epoxy resin is pumped, mixed, dissolved and thrown into a matched system to add epoxy resin binder;
(7) paving the epoxy asphalt concrete in a full-width paving mode;
(8) automatically scraping the epoxy asphalt concrete which does not flow on the side wall of the ironing plate behind the spiral material distribution groove of the paver by adopting an automatic scraper of the paver;
(9) guiding rolling of the paved epoxy asphalt concrete by adopting an intelligent rolling way;
(10) detecting the thickness of the bridge deck pavement layer by adopting a pavement layer thickness uniformity monitoring mode;
(11) and detecting the quality and the service life of the paved layer by adopting a paving layer compactness uniformity monitoring mode and a paving layer early defect early warning monitoring mode.
2. The construction method for paving the epoxy asphalt concrete with the high performance and the wide temperature range in a full width way according to claim 1, is characterized in that the filling volume method of the coarse aggregate framework is to measure the void ratio of the mineral aggregate of the main framework and calculate the void volume of the mineral aggregate, so that the sum of the volume of the fine aggregate, the volume of the asphalt, the volume of the mineral powder and the final design void volume of the asphalt mixture is equal to the void volume of the main framework;
the mass percentage, the oilstone ratio, the loose-loading clearance rate of the coarse aggregate and the mixture in a tamping state and the design clearance rate of the mixture of the coarse aggregate, the fine aggregate and the mineral powder are adopted to satisfy the following equations:
qc+qf+qp＝100 (1-1)
in the formula, qc、qf、qpThe weight percentages of coarse aggregate, fine aggregate and mineral powder are respectively; q. q.saIs the mass percentage of the asphalt; vDRCThe gap rate of the coarse aggregate in a dry tamping state; vDsDesigning the void ratio of the asphalt mixture; gamma raysThe coarse aggregate compact packing density; gamma rayfAnd gammapThe apparent densities of the fine aggregate and the mineral powder are respectively; gamma rayaIs the relative density of the asphalt; vDRCCan be measured by experiment
In the formula: ds is the main aggregate packing density; dt is the apparent density of the main aggregate.
3. The construction method for paving the epoxy asphalt concrete in the full width with the high performance and the wide temperature range according to claim 1, wherein the intelligently-arranged movable workshop improves the uniformity and the effective operation time of the construction quality of the epoxy zinc-rich paint, solves the problem that the construction of the epoxy zinc-rich paint is influenced by wind speed, sunlight radiation and the like, and provides an effective way for improving the working environment of workers and shortening the construction period.
4. The construction method for paving the epoxy asphalt concrete in the full width with high performance and wide temperature range according to claim 1, wherein the movable constant temperature room is a closed box body and has the functions of heating, refrigerating and temperature control, and the bottom and the side wall adopt a grid type chute, so that hot air can flow conveniently, and the uniformity of the heating temperature of the epoxy resin can be ensured.
5. The construction method for paving the epoxy asphalt concrete in the full width with the high performance and the wide temperature range according to claim 1, wherein the intelligent stirring system comprises 2 stirring barrels and pumping barrels with the capacity of 100L, wherein the bottom parts of the stirring barrels and the pumping barrels are conical funnel-shaped barrels, valves are respectively arranged at the bottom parts of the stirring barrels and the pumping barrels, spoilers are respectively arranged on the inner walls of the stirring barrels and the pumping barrels, and stirrers which adopt multilayer stirring blades and have adjustable rotating speed and variable frequency are respectively arranged at the bottom parts of the stirring barrels and the pumping barrels.
6. The construction method for paving the epoxy asphalt concrete in a full width with high performance and wide temperature range according to claim 1, wherein the intelligent stirring system comprises a pumping system, an automatic walking brushing system and a control system.
7. The construction method for paving the epoxy asphalt concrete in the full width with the high performance and the wide temperature range according to claim 1, wherein the epoxy resin pumping, mixing, dissolving and throwing matching system comprises an epoxy resin constant temperature room, an epoxy resin pumping system, a mixing, dissolving and stirring system and a control system; the temperature of the epoxy resin is controlled to be 60 +/-5 ℃; when the pumping system pipeline is used for the first time, the epoxy resin main agent and the curing agent are filled, and due to the effect of the one-way valve, materials in the pipeline cannot flow back into the barrel.
8. The construction method for paving the epoxy asphalt concrete in the full width according to the claim 1, characterized in that the full width paving mode adopts 2 pavers with the same model and similar abrasion to pave in a ladder fleet, thereby effectively avoiding the problem of cold joint in the longitudinal construction of the traditional frame-by-frame side-by-side paving or lane paving, ensuring the integrity of a paving layer, improving the quality of the paving layer and improving the construction efficiency by 1 time.
9. The construction method for paving the epoxy asphalt concrete in the full width with the high performance and the wide temperature range according to claim 1, is characterized in that the automatic scraping material of the paver is the side wall of an ironing plate arranged behind a spiral material distributing groove, two sets of scraper supports are pushed to move in the same direction through two oil cylinders, the movement speed of the scrapers is controlled by adjusting a hydraulic flow regulating valve in time according to the paving speed in the process, the repeated movement of the scrapers is used for reducing the retention time of the mixture which does not flow, the generation of the dead material when the conventional asphalt mixture is paved and the epoxy asphalt mixture is paved is avoided, and the paving quality of the mixture is ensured.
10. The construction method for paving the epoxy asphalt concrete with the high performance and the wide temperature range in a full width way according to claim 1, wherein the intelligent rolling way is to adopt an FLIR infrared thermal imaging technology and a nuclear-free densitometer, and the rolling is guided by controlling the temperature and detecting the uniformity of the compactness.
11. The method for paving and constructing the epoxy asphalt concrete with high performance and wide temperature range in full width according to claim 1, wherein the monitoring method for the uniformity of the pavement layer thickness is to adopt a high-precision laser profiler to detect the flatness of the base surface of the bridge deck plate before paving, adopt self-programmed computer data to fit infinite calculation software, optimize and determine the optimal length of the balance beam, adopt the proper length of the balance beam to pave in full width, and utilize a high-power three-dimensional 3D ground penetrating radar to detect the thickness of the bridge deck pavement layer.
12. The full-width paving construction method of high-performance wide-temperature-range epoxy asphalt concrete according to claim 1, characterized in that the paving layer compactness uniformity monitoring mode is that a viscosity-temperature change curve of epoxy asphalt is adopted to provide reference temperature for mixing, transporting, paving and rolling of epoxy asphalt mixture, and the construction temperature in each stage is strictly executed according to the viscosity-temperature curve, so that the compactness and the void ratio of the paving layer can be ensured. The compaction characteristics of the epoxy asphalt concrete are mainly determined by the selection of a compactor, a compaction scheme, the compaction pass and the like, and a proper rolling process is determined through a test section; and during and after the epoxy asphalt mixture is compacted, testing the compactness and the void ratio of the pavement layer by using a non-nuclear density meter, and further evaluating the construction quality of the pavement layer. The early-stage defect early-warning monitoring mode of the pavement layer is that a self-developed intelligent infrared thermal imaging technology is adopted to monitor early-stage defects, early-stage diseases are determined by determining the temperature change of each part of the pavement layer, and the early-stage disease confirmation rate reaches 100%.
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