CN110144787A - A kind of super construction technology for gluing ultra-thin stress absorbing layer - Google Patents

A kind of super construction technology for gluing ultra-thin stress absorbing layer Download PDF

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Publication number
CN110144787A
CN110144787A CN201910403830.1A CN201910403830A CN110144787A CN 110144787 A CN110144787 A CN 110144787A CN 201910403830 A CN201910403830 A CN 201910403830A CN 110144787 A CN110144787 A CN 110144787A
Authority
CN
China
Prior art keywords
absorbing layer
stress absorbing
expansion joint
basal plane
cement concrete
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910403830.1A
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Chinese (zh)
Inventor
蔡海军
郑乐
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NANTONG FULUNLI NEW MATERIAL CO Ltd
Jiangsu Fu Optical Engineering Technology Co Ltd
Original Assignee
NANTONG FULUNLI NEW MATERIAL CO Ltd
Jiangsu Fu Optical Engineering Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NANTONG FULUNLI NEW MATERIAL CO Ltd, Jiangsu Fu Optical Engineering Technology Co Ltd filed Critical NANTONG FULUNLI NEW MATERIAL CO Ltd
Priority to CN201910403830.1A priority Critical patent/CN110144787A/en
Publication of CN110144787A publication Critical patent/CN110144787A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00Details of pavings
    • E01C11/24Methods or arrangements for preventing slipperiness or protecting against influences of the weather
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C7/00Coherent pavings made in situ
    • E01C7/08Coherent pavings made in situ made of road-metal and binders
    • E01C7/10Coherent pavings made in situ made of road-metal and binders of road-metal and cement or like binders
    • E01C7/14Concrete paving
    • E01C7/147Repairing concrete pavings, e.g. joining cracked road sections by dowels, applying a new concrete covering

Abstract

The invention discloses a kind of super construction technologies for gluing ultra-thin stress absorbing layer, include the following steps: that Disease Processing early period --- slotting to existing cement concrete basal plane expansion joint --- is formally constructed by the later period.Stress absorbing layer of the invention has very strong viscosity, the bonding that it can be consolidated with cement concrete basal plane.Since the strong multiple emulsion of black room temperature speed is on the basis of modified emulsifying asphalt; so will form certain thickness asphalt membrane on road surface; it can be effectively prevented underwater infiltration; inhibit the generation of edema evil; and the quartz sand of pitch and different structure will form the structure sheaf for inhibiting crack reflection together; the generation for effectively preventing crack, adequately protects the asphalt uplayer to pave.The present invention improves the ascending ability of anti-low-temperature cracking and delayed reflex crack by the interlaminar bonding ability and shear at high temperature intensity that improve, plays good inter-laminar stress absorption and cementitiousness, the quality of engineering is effectively guaranteed.

Description

A kind of super construction technology for gluing ultra-thin stress absorbing layer
Technical field
The invention belongs to the preparation and application fields of stress absorbing layer, and in particular to a kind of super to glue ultra-thin stress absorbing layer Construction technology.
Background technique
This engineering technology is more, the overlay heat on water-setting concrete road for being directed to Cement Concrete Pavement Reconstruction application Asphalt surface course makes full use of the intensity of cement concrete, not only low cost, and easy construction is smaller with traffic pollution to environment.
The technology that traditional stress absorbing layer uses is largely Synchronous pavement surface dressing, passes through synchronous macadam seal paver Rubble and adhesives are synchronized and are sprinkled upon on cement concrete pavement, bed course is served as by this technology, in cement concrete and drip Blueness overlays interlayer and forms a kind of stress absorbing layer, has the characteristics that resistance deformability is low with stiffness modulus by force, deformation passes through Buffer layer passes to overlay, plays the characteristics of reducing crack peak value, to play the characteristics of inhibiting crack reflection.
Novel stress absorbing layer is to be mixed by black room temperature pitch multiple emulsion with high stiffness additive package, by dilute Slurry chip sealer paves on water-setting concrete road surface, which can resist cement concrete surface expansion joint bring Stress, to delay the crack reflection of the bituminous concrete bituminous sheaths overlayed.
Summary of the invention
Goal of the invention: in order to solve the deficiencies in the prior art, super ultra-thin stress absorbing layer is glued the present invention provides a kind of Construction technology.
It is directed between asphalt concrete pavement layer and status Cement Concrete Pavement Slab, forms a kind of stress absorbing layer, Play stress absorption, isolation, waterproof, water shutoff and prevents crack reflection.The core of product is black room temperature speed Qiang Fuhe Lotion mixes addition strength mix with high stiffness and forms, formed it is a kind of super glue it is ultra-thin.Viscosity and waterproof performance with super strength, simultaneously Also there is the stress absorbing layer of high-intensitive tensile ductility.
Technical solution: a kind of super construction technology for gluing ultra-thin stress absorbing layer includes the following steps: at disease early period Managing --- slotting to existing cement concrete basal plane expansion joint ---, the later period formally constructs;Wherein:
Slot to existing cement concrete basal plane expansion joint: the depth of fluting is 2mm, then will hold stretching for slot successfully Contracting seam carries out cementation of fissures processing, until base joint grouting glue demulsification after-contraction molding, anti-cracking cloth is posted on the expansion joint filled, in anticracking Water shutoff item is carried out on cloth.
As optimization: Disease Processing early period: including to cement concrete basal plane fracture unit: for being greater than The expansion joint of 5mm can directly can apply the expansion joint less than 5mm directly with the direct cementation of fissures of aqueous base joint grouting glue with hairbrush Brush carries out leveling to basal plane out-of-flatness, low-lying place, the levelling material of different models is selected according to levelling thickness.
As optimization: the later period formally constructs: cleaning cement pavement is clean to surface, and distribution vehicle sprays cement pavement Sticking layer oil, micro- table paver vehicle pave on stress absorbing layer to Portland Cement Concrete Surface Course, carry out before paving to the match ratio of mixture Calibration, determines correct match ratio.
The utility model has the advantages that stress absorbing layer of the invention has very strong viscosity, it can be steady with cement concrete basal plane Solid bonding.Since the strong multiple emulsion of black room temperature speed is on the basis of modified emulsifying asphalt, so will form on road surface Certain thickness asphalt membrane, it can be effectively prevented underwater infiltration, inhibit the generation of edema evil, and pitch and different structure Quartz sand will form the structure sheaf of one of inhibition crack reflection, effectively prevent the generation in crack, adequately protect the drip to pave Green upper layer.It can also be studied by interlayer mechanical analysis, tensile stress and shearing force Experimental comparison, provide for project and reliably apply Work basis, the interlaminar bonding ability and shear at high temperature intensity of raising, improves the rising energy in anti-low-temperature cracking and delayed reflex crack Power plays good inter-laminar stress absorption and cementitiousness, effective to guarantee using newest design scheme and construction technology The quality of engineering.
Detailed description of the invention
Fig. 1 is flow diagram of the invention.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, so that the technology of this field Personnel can better understand advantages and features of the invention, to make apparent boundary to protection scope of the present invention It is fixed.Embodiment described in the invention is only a part of the embodiment of the present invention, instead of all the embodiments, based on the present invention In embodiment, those of ordinary skill in the art's every other implementation obtained without making creative work Example, shall fall within the protection scope of the present invention.
Embodiment
As shown in Figure 1, a kind of super construction technology for gluing ultra-thin stress absorbing layer, includes the following steps: at disease early period Managing --- slotting to existing cement concrete basal plane expansion joint ---, the later period formally constructs;Wherein:
Disease Processing early period: including to cement concrete basal plane fracture unit: the expansion joint for being greater than 5mm The expansion joint less than 5mm can directly can be brushed with hairbrush, directly with the direct cementation of fissures of aqueous base joint grouting glue to basal plane injustice Whole, low-lying place carries out leveling, and the levelling material of different models is selected according to levelling thickness;
Slot to existing cement concrete basal plane expansion joint: the depth of fluting is 2mm, then will hold stretching for slot successfully Contracting seam carries out cementation of fissures processing, until base joint grouting glue demulsification after-contraction molding, anti-cracking cloth is posted on the expansion joint filled, in anticracking Water shutoff item is carried out on cloth;
The later period formally constructs: cleaning cement pavement is clean to surface, and distribution vehicle sprays cement pavement sticking layer oil, micro- Table paver vehicle paves on stress absorbing layer to Portland Cement Concrete Surface Course, demarcates before paving to the match ratio of mixture, determines Correct match ratio.
Specific embodiment 1
The white of certain cities and counties changes black stress absorbing layer, and former cement and concrete pavement road surface is overlaying 4 centimeters of heated bitumen above Then concrete road surface, the stress absorbing layer that Backing layer paves are stretched cement by the Disease Processing to cement basal plane early period Contracting seam is slotted, the cementation of fissures, pastes anti-cracking cloth, does water shutoff item, is finally paved to the stress absorbing layer on the road surface.Since this tests Road belongs to national highway, and vehicle flowrate is relatively large, so the quality requirement for the stress absorbing layer is very high, other in this area are white Change black pavement spread is all thicker heated bitumen surface layer (add in one layer of paving in grain formula surface layer), therefore quality of materials comparison can Know its effect.
Specific embodiment 2
The white of certain cities and counties changes black stress absorbing layer, and former road surface is cement concrete pavement, is overlaying 4 centimeters of heat drip above Green concrete road surface, the stress absorbing layer that Backing layer paves, by the Disease Processing to cement basal plane early period, then to cement Expansion joint is slotted, the cementation of fissures, pastes anti-cracking cloth, does water shutoff item, is finally paved to the stress absorbing layer on the road surface.Wherein there is one section For the cement concrete pavement of bridge floor, and compared with the stress absorbing layer of the design of different specification around.
Specific embodiment 3
The white of certain cities and counties changes black stress absorbing layer, and former road surface is cement concrete pavement, is overlaying 4 centimeters of heat drip above Green concrete road surface, the stress absorbing layer that Backing layer paves, by the Disease Processing to cement basal plane early period, then to cement Expansion joint is slotted, the cementation of fissures, pastes anti-cracking cloth, does water shutoff item, is finally paved to the stress absorbing layer on the road surface.The test section is One slope, difference of height is larger, to the more demanding of stress absorbing layer.
Stress absorbing layer in the present invention includes the Disease Processing of early period and the processing of anti-cracking cloth water shutoff item, formal to the later period Pave stress absorbing layer, including Disease Processing whether in place, anti-cracking cloth water shutoff item whether according to the ratio strict control, the later period paves is No no agglomeration, whether Mixture Ratio correct, and whether the thickness to pave up to standard etc..
The strong multiple emulsion composition principle of black room temperature speed is as follows: the strong multiple emulsion of black room temperature speed is using polymer water and milk SBS aqueous emulsion, increasing stick toughening aqueous emulsion are added in the base of modified emulsifying asphalt and can make pitch for the modified mode of liquid Chain rupture recombinates to form a kind of stable chemical network novel sticky splicing at normal temperature with macromolecule.
High stiffness additive package in the present invention is a kind of novel room temperature asphalt concrete additive agent, by a variety of polymerizations The composition such as object rubber powder, curing agent, activator, the bituminous concrete comprehensive performance of the material can significantly improve, and room temperature is applied Work, not by seasonal effect.
The present invention is paved in construction by micro-surface area paver vehicle, and the strong multiple emulsion of black room temperature speed is mixed with high stiffness Additive directly stirs in paver vehicle, is modified to bituminous concrete, in high stiffness additive package and room temperature pitch Water chemically reacts, and forms microfibre toughening crystallization hyrate, can control the curing time of mixture, directly passes through paver vehicle It paves on cement concrete basal plane.
Stress absorbing layer of the invention has very strong viscosity, the bonding that it can be consolidated with cement concrete basal plane. Since the strong multiple emulsion of black room temperature speed is on the basis of modified emulsifying asphalt, so will form on road surface certain thickness Asphalt membrane, it can be effectively prevented underwater infiltration, inhibit the generation of edema evil, and the quartz sand of pitch and different structure can shape At the structure sheaf for inhibiting crack reflection together, the generation in crack is effectively prevented, the asphalt uplayer to pave is adequately protected.? It can be studied by interlayer mechanical analysis, tensile stress and shearing force Experimental comparison, provide reliable construction basis for project, improve Interlaminar bonding ability and shear at high temperature intensity, improve the ascending ability of anti-low-temperature cracking and delayed reflex crack, play very Good inter-laminar stress absorbs and using newest design scheme and construction technology the matter of engineering is effectively guaranteed in cementitiousness Amount.

Claims (3)

1. a kind of super construction technology for gluing ultra-thin stress absorbing layer, characterized by the following steps: at early period disease Managing --- slotting to existing cement concrete basal plane expansion joint ---, the later period formally constructs;Wherein:
Slot to existing cement concrete basal plane expansion joint: the depth of fluting is 2mm, then will hold the expansion joint of slot successfully Cementation of fissures processing is carried out, until base joint grouting glue demulsification after-contraction molding, anti-cracking cloth is posted on the expansion joint filled, on anti-cracking cloth Carry out water shutoff item.
2. the super construction technology for gluing ultra-thin stress absorbing layer according to claim 1, it is characterised in that: disease early period Harm reason: including to cement concrete basal plane fracture unit: for greater than 5mm expansion joint can directly with aqueous base joint grouting glue it is straight The cementation of fissures is connect, the expansion joint less than 5mm can directly be brushed with hairbrush, levelling place is carried out to basal plane out-of-flatness, low-lying place Reason, the levelling material of different models is selected according to levelling thickness.
3. the super construction technology for gluing ultra-thin stress absorbing layer according to claim 1, it is characterised in that: the later period is just Formula construction: cleaning cement pavement is clean to surface, stress absorption that distribution vehicle sprays cement pavement sticking layer oil, micro- table paver vehicle paves On layer to Portland Cement Concrete Surface Course, the match ratio of mixture is demarcated before paving, determines correct match ratio.
CN201910403830.1A 2019-05-15 2019-05-15 A kind of super construction technology for gluing ultra-thin stress absorbing layer Pending CN110144787A (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN112709132A (en) * 2020-12-31 2021-04-27 南通福伦利新材料有限公司 Preparation and spraying method of normal-temperature asphalt stress absorption film for heavy corrosion prevention of steel bridge deck/steel base surface

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Publication number Priority date Publication date Assignee Title
CN112709132A (en) * 2020-12-31 2021-04-27 南通福伦利新材料有限公司 Preparation and spraying method of normal-temperature asphalt stress absorption film for heavy corrosion prevention of steel bridge deck/steel base surface
CN112709132B (en) * 2020-12-31 2023-02-28 南通福伦利新材料有限公司 Preparation and spraying method of normal-temperature asphalt stress absorption film for heavy corrosion prevention of steel bridge deck/steel base surface

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Application publication date: 20190820