CN113773803A - Asphalt pavement crack pouring adhesive, preparation method thereof and asphalt pavement crack repairing method - Google Patents

Asphalt pavement crack pouring adhesive, preparation method thereof and asphalt pavement crack repairing method Download PDF

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Publication number
CN113773803A
CN113773803A CN202111149369.5A CN202111149369A CN113773803A CN 113773803 A CN113773803 A CN 113773803A CN 202111149369 A CN202111149369 A CN 202111149369A CN 113773803 A CN113773803 A CN 113773803A
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crack pouring
asphalt pavement
glass ceramic
crack
nbr rubber
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CN113773803B (en
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亓俊峰
许家砾
宋延昭
孟春常
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Shandong Taidong Highway Engineering Co ltd
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Shandong Taidong Highway Engineering Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J195/00—Adhesives based on bituminous materials, e.g. asphalt, tar, pitch
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/04—Non-macromolecular additives inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/06—Non-macromolecular additives organic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/08—Macromolecular additives
    • 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
    • E01C7/187—Repairing bituminous covers, e.g. regeneration of the covering material in situ, application of a new bituminous topping

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Sealing Material Composition (AREA)

Abstract

The application relates to the field of asphalt pavement repair engineering, and particularly discloses an asphalt pavement crack pouring adhesive, a preparation method thereof and an asphalt pavement crack repairing method. The asphalt pavement crack pouring adhesive is prepared from the following raw materials in parts by weight: 100-120 parts of SBS asphalt, 15-25 parts of reinforcing agent, 5-7 parts of modifier and 6-9 parts of auxiliary agent, wherein the reinforcing agent comprises NBR rubber powder, glass ceramic powder and PVDC emulsion, and the weight ratio of the NBR rubber powder, the glass ceramic powder and the PVDC emulsion is (3-5): (2-4): 1. the asphalt pavement crack pouring adhesive can be used for repairing cracks of asphalt pavements, and has the advantage of reducing cracks caused by crack pouring adhesive cracking in asphalt.

Description

Asphalt pavement crack pouring adhesive, preparation method thereof and asphalt pavement crack repairing method
Technical Field
The application relates to the field of asphalt pavement repair engineering, in particular to an asphalt pavement crack pouring adhesive, a preparation method thereof and an asphalt pavement crack repairing method.
Background
Asphalt pavement refers to various types of pavement that are made by incorporating into mineral materials a road asphalt material. The asphalt material improves the ability of the pavement to resist driving and damage of natural factors to the pavement, and enables the pavement to be smooth, dustless, waterproof and durable. Accordingly, asphalt pavement is one of the most widely used high-grade pavements in road construction.
In the related art, under the action of a driving load, a structural damage crack occurs on the asphalt pavement, and the crack is generated from the bottom and then reflected to the asphalt pavement, so that the asphalt pavement is cracked. The existing repair technology is to fill polymer modified asphalt into cracks so as to repair the cracks.
With respect to the above-described related art, the inventors consider that: the polymer modified asphalt filled in the cracks is easy to crack in a low-temperature environment, so that the cracks reappear, and the crack repairing effect is influenced.
Disclosure of Invention
In order to reduce the situation of cracking again after crack repair and improve the crack repair effect, the application provides the asphalt pavement crack pouring adhesive, the preparation method thereof and the asphalt pavement crack repair method.
In a first aspect, the application provides an asphalt pavement crack pouring adhesive, which adopts the following technical scheme and consists of the following raw materials in parts by weight: 100-120 parts of SBS asphalt, 15-25 parts of reinforcing agent, 5-7 parts of modifier and 6-9 parts of auxiliary agent, wherein the reinforcing agent comprises NBR rubber powder, glass ceramic powder and PVDC emulsion, and the weight ratio of the NBR rubber powder, the glass ceramic powder and the PVDC emulsion is (3-5): (2-4): 1.
by adopting the technical scheme, the NBR rubber powder and the glass ceramic powder are mixed to improve the toughness of the crack pouring adhesive, and meanwhile, the PVDC emulsion and the NBR rubber powder form a cross-linked network to improve the connection strength of the glass ceramic powder and the SBS asphalt, so that the low-temperature brittle crack resistance of the crack pouring adhesive is effectively improved, the condition that the crack is cracked again after crack repair is reduced, and the crack repair effect is improved.
Preferably, the particle size of the NBR rubber powder is 100 meshes, and the particle size of the glass ceramic powder is 200 meshes.
By adopting the technical scheme, the glass ceramic powder fills gaps among the NBR rubber powder particles, so that the compactness of the crack pouring glue is improved, and the strength of the crack pouring glue in cracks is effectively improved.
Preferably, the modifier comprises epoxy resin and a curing agent, and the weight ratio of the epoxy resin to the curing agent is (4-6): 1.
by adopting the technical scheme, the epoxy resin improves the bonding strength among the components of the crack pouring adhesive and reduces the condition that the crack pouring adhesive is cracked under the load in the crack.
Preferably, the auxiliary agent comprises a plasticizer and a softening agent, and the weight ratio of the plasticizer to the softening agent is (4-6): (2-3).
By adopting the technical scheme, the softener improves the crosslinking degree of the NBR rubber powder, so that the connection strength of the NBR rubber powder and the glass ceramic powder is improved, and the plasticizer improves the plasticizing performance of the joint filling glue in the crack, thereby reducing the cracking condition of the joint filling glue in the crack.
Preferably, the plasticizer comprises industrial white oil and dioctyl maleate, and the weight ratio of the industrial white oil to the dioctyl maleate is (3-5): 1.
by adopting the technical scheme, the industrial white oil and the dioctyl maleate lower the glass transition temperature of the PVDC emulsion, improve the bonding strength of the PVDC emulsion to each component, further improve the toughness of the crack pouring glue in the crack and reduce the cracking condition of the crack pouring glue in the crack.
Preferably, the softening agent is naphthenic oil.
By adopting the technical scheme, the naphthenic oil improves the crosslinking degree of the NBR rubber powder, thereby improving the connection strength of the NBR rubber powder, the glass ceramic powder and other components, and improving the strength of the crack pouring adhesive in the crack.
In a second aspect, the application provides a preparation method of an asphalt pavement crack pouring adhesive, which adopts the following technical scheme:
a process for preparing the crack-pouring adhesive for asphalt pavement includes such steps as heating SBS asphalt, adding reinforcing agent, modifier and assistant, stirring, mixing, and cooling to room temp.
By adopting the technical scheme, the components are uniformly mixed in a heating environment through stirring to prepare the crack pouring sealant, and the operation is simple and convenient.
In a third aspect, the application provides a method for repairing a crack of an asphalt pavement, which adopts the following technical scheme: the method comprises the following steps of introducing gas into the crack for removing water, dust and broken slag in the crack, pouring crack pouring glue into the crack, and paving a layer of fine sand on the upper layer of the crack pouring glue.
By adopting the technical scheme, the crack pouring glue is added after the crack is cleaned, and the fine sand is laid on the crack pouring glue, so that the load at the crack is effectively improved, and the condition that the crack pouring glue in the crack cracks under the load is reduced.
In summary, the present application has the following beneficial effects:
1. according to the crack pouring sealant, the PVDC emulsion and the NBR rubber powder are adopted to form a cross-linked network, so that the connection strength between the SBS asphalt and the glass ceramic powder is improved, the toughness and the strength of the crack pouring sealant are further improved, the low-temperature brittle crack resistance of the crack pouring sealant is effectively improved, and the cracking condition of the crack pouring sealant in a crack is reduced.
2. The industrial white oil and the dioctyl maleate reduce the glass transition temperature of the PVDC emulsion, improve the bonding strength of the PVDC emulsion to each component, further improve the toughness of the crack pouring glue in the crack, and reduce the cracking condition of the crack pouring glue in the crack.
3. According to the method, the crack pouring glue can be prepared by stirring the raw materials under the heating condition, and the operation is simple and convenient.
Detailed Description
SBS pitch is purchased from the market; NBR rubber powder, glass ceramic powder and PVDC emulsion form reinforcing agents and are purchased from the market; industrial white oil and dioctyl maleate constitute plasticizers and are both purchased commercially; naphthenic oil is a softening agent purchased from the market; epoxy resins and 593 amine curing agents constitute modifiers and are all purchased from commercial sources.
The present application will be described in further detail with reference to examples.
Examples
Example 1
S1, weighing 100kg of SBS asphalt, 5kg of NBR rubber powder, 9kg of glass ceramic powder, 1kg of PVDC emulsion, 3kg of industrial white oil, 1kg of dioctyl maleate and 2kg of naphthenic oil, and stirring in a heating environment at 180 ℃, wherein the particle size of the NBR rubber powder is 100 meshes, and the particle size of the glass ceramic powder is 200 meshes;
s2, weighing 4kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
Example 2
S1, weighing 110kg of SBS asphalt, 5kg of NBR rubber powder, 9kg of glass ceramic powder, 1kg of PVDC emulsion, 4kg of industrial white oil, 1kg of dioctyl maleate and 2.5kg of naphthenic oil, stirring in a heating environment at 180 ℃, wherein the particle size of the NBR rubber powder is 100 meshes, and the particle size of the glass ceramic powder is 200 meshes;
s2, weighing 5kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
Example 3
S1, weighing 110kg of SBS asphalt, 5kg of NBR rubber powder, 12kg of glass ceramic powder, 1kg of PVDC emulsion, 4kg of industrial white oil, 1kg of dioctyl maleate and 2.5kg of naphthenic oil, stirring in a heating environment at 180 ℃, wherein the particle size of the NBR rubber powder is 100 meshes, and the particle size of the glass ceramic powder is 200 meshes;
s2, weighing 5kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
Example 4
S1, weighing 110kg of SBS asphalt, 5kg of NBR rubber powder, 15kg of glass ceramic powder, 1kg of PVDC emulsion, 4kg of industrial white oil, 1kg of dioctyl maleate and 2.5kg of naphthenic oil, stirring in a heating environment at 180 ℃, wherein the particle size of the NBR rubber powder is 100 meshes, and the particle size of the glass ceramic powder is 200 meshes;
s2, weighing 5kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
Example 5
S1, weighing 110kg of SBS asphalt, 7kg of NBR rubber powder, 9kg of glass ceramic powder, 1kg of PVDC emulsion, 4kg of industrial white oil, 1kg of dioctyl maleate and 2.5kg of naphthenic oil, stirring in a heating environment at 180 ℃, wherein the particle size of the NBR rubber powder is 100 meshes, and the particle size of the glass ceramic powder is 200 meshes;
s2, weighing 5kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
Example 6
S1, weighing 110kg of SBS asphalt, 7kg of NBR rubber powder, 12kg of glass ceramic powder, 1kg of PVDC emulsion, 4kg of industrial white oil, 1kg of dioctyl maleate and 2.5kg of naphthenic oil, stirring in a heating environment at 180 ℃, wherein the particle size of the NBR rubber powder is 100 meshes, and the particle size of the glass ceramic powder is 200 meshes;
s2, weighing 5kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
Example 7
S1, weighing 110kg of SBS asphalt, 7kg of NBR rubber powder, 15kg of glass ceramic powder, 1kg of PVDC emulsion, 4kg of industrial white oil, 1kg of dioctyl maleate and 2.5kg of naphthenic oil, stirring in a heating environment at 180 ℃, wherein the particle size of the NBR rubber powder is 100 meshes, and the particle size of the glass ceramic powder is 200 meshes;
s2, weighing 5kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
Example 8
S1, weighing 110kg of SBS asphalt, 9kg of NBR rubber powder, 9kg of glass ceramic powder, 1kg of PVDC emulsion, 4kg of industrial white oil, 1kg of dioctyl maleate and 2.5kg of naphthenic oil, stirring in a heating environment at 180 ℃, wherein the particle size of the NBR rubber powder is 100 meshes, and the particle size of the glass ceramic powder is 200 meshes;
s2, weighing 5kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
Example 9
S1, weighing 110kg of SBS asphalt, 9kg of NBR rubber powder, 12kg of glass ceramic powder, 1kg of PVDC emulsion, 4kg of industrial white oil, 1kg of dioctyl maleate and 2.5kg of naphthenic oil, stirring in a heating environment at 180 ℃, wherein the particle size of the NBR rubber powder is 100 meshes, and the particle size of the glass ceramic powder is 200 meshes;
s2, weighing 5kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
Example 10
S1, weighing 110kg of SBS asphalt, 9kg of NBR rubber powder, 15kg of glass ceramic powder, 1kg of PVDC emulsion, 4kg of industrial white oil, 1kg of dioctyl maleate and 2.5kg of naphthenic oil, stirring in a heating environment at 180 ℃, wherein the particle size of the NBR rubber powder is 100 meshes, and the particle size of the glass ceramic powder is 200 meshes;
s2, weighing 5kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
Example 11
S1, weighing 100kg of SBS asphalt, 7kg of NBR rubber powder, 12kg of glass ceramic powder, 1kg of PVDC emulsion, 4kg of industrial white oil, 1kg of dioctyl maleate and 2.5kg of naphthenic oil, and stirring in a heating environment at 180 ℃, wherein the particle size of the NBR rubber powder is 100 meshes, and the particle size of the glass ceramic powder is 200 meshes;
s2, weighing 5kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
Example 12
S1, weighing 120kg of SBS asphalt, 7kg of NBR rubber powder, 12kg of glass ceramic powder, 1kg of PVDC emulsion, 4kg of industrial white oil, 1kg of dioctyl maleate and 2.5kg of naphthenic oil, stirring in a heating environment at 180 ℃, wherein the particle size of the NBR rubber powder is 100 meshes, and the particle size of the glass ceramic powder is 200 meshes;
s2, weighing 5kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
Example 13
S1, weighing 110kg of SBS asphalt, 7kg of NBR rubber powder, 12kg of glass ceramic powder, 1kg of PVDC emulsion, 4kg of industrial white oil, 1kg of dioctyl maleate and 2.5kg of naphthenic oil, stirring in a heating environment at 180 ℃, wherein the particle size of the NBR rubber powder is 100 meshes, and the particle size of the glass ceramic powder is 200 meshes;
s2, weighing 5kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
Example 14
S1, weighing 110kg of SBS asphalt, 7kg of NBR rubber powder, 12kg of glass ceramic powder, 1kg of PVDC emulsion, 4kg of industrial white oil, 1kg of dioctyl maleate and 2.5kg of naphthenic oil, stirring in a heating environment at 180 ℃, wherein the particle size of the NBR rubber powder is 100 meshes, and the particle size of the glass ceramic powder is 200 meshes;
s2, weighing 5kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
Example 15
S1, weighing 110kg of SBS asphalt, 7kg of NBR rubber powder, 12kg of glass ceramic powder, 1kg of PVDC emulsion, 3kg of industrial white oil, 1kg of dioctyl maleate and 2kg of naphthenic oil, and stirring in a heating environment at 180 ℃, wherein the particle size of the NBR rubber powder is 100 meshes, and the particle size of the glass ceramic powder is 200 meshes;
s2, weighing 5kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
Example 16
S1, weighing 110kg of SBS asphalt, 7kg of NBR rubber powder, 12kg of glass ceramic powder, 1kg of PVDC emulsion, 4kg of industrial white oil, 1kg of dioctyl maleate and 2kg of naphthenic oil, and stirring in a heating environment at 180 ℃, wherein the particle size of the NBR rubber powder is 100 meshes, and the particle size of the glass ceramic powder is 200 meshes;
s2, weighing 5kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
Example 17
S1, weighing 110kg of SBS asphalt, 7kg of NBR rubber powder, 12kg of glass ceramic powder, 1kg of PVDC emulsion, 5kg of industrial white oil, 1kg of dioctyl maleate and 2kg of naphthenic oil, and stirring in a heating environment at 180 ℃, wherein the particle size of the NBR rubber powder is 100 meshes, and the particle size of the glass ceramic powder is 200 meshes;
s2, weighing 5kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
Example 18
S1, weighing 110kg of SBS asphalt, 7kg of NBR rubber powder, 12kg of glass ceramic powder, 1kg of PVDC emulsion, 3kg of industrial white oil, 1kg of dioctyl maleate and 2.5kg of naphthenic oil, stirring in a heating environment at 180 ℃, wherein the particle size of the NBR rubber powder is 100 meshes, and the particle size of the glass ceramic powder is 200 meshes;
s2, weighing 5kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
Example 19
S1, weighing 110kg of SBS asphalt, 7kg of NBR rubber powder, 12kg of glass ceramic powder, 1kg of PVDC emulsion, 5kg of industrial white oil, 1kg of dioctyl maleate and 2.5kg of naphthenic oil, stirring in a heating environment at 180 ℃, wherein the particle size of the NBR rubber powder is 100 meshes, and the particle size of the glass ceramic powder is 200 meshes;
s2, weighing 5kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
Example 20
S1, weighing 110kg of SBS asphalt, 7kg of NBR rubber powder, 12kg of glass ceramic powder, 1kg of PVDC emulsion, 3kg of industrial white oil, 1kg of dioctyl maleate and 3kg of naphthenic oil, stirring in a heating environment at 180 ℃, wherein the particle size of the NBR rubber powder is 100 meshes, and the particle size of the glass ceramic powder is 200 meshes;
s2, weighing 5kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
Example 21
S1, weighing 110kg of SBS asphalt, 7kg of NBR rubber powder, 12kg of glass ceramic powder, 1kg of PVDC emulsion, 4kg of industrial white oil, 1kg of dioctyl maleate and 3kg of naphthenic oil, stirring in a heating environment at 180 ℃, wherein the particle size of the NBR rubber powder is 100 meshes, and the particle size of the glass ceramic powder is 200 meshes;
s2, weighing 5kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
Example 22
S1, weighing 110kg of SBS asphalt, 7kg of NBR rubber powder, 12kg of glass ceramic powder, 1kg of PVDC emulsion, 5kg of industrial white oil, 1kg of dioctyl maleate and 3kg of naphthenic oil, stirring in a heating environment at 180 ℃, wherein the particle size of the NBR rubber powder is 100 meshes, and the particle size of the glass ceramic powder is 200 meshes;
s2, weighing 5kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
Example 23
S1, weighing 110kg of SBS asphalt, 7kg of NBR rubber powder, 12kg of glass ceramic powder, 1kg of PVDC emulsion, 4kg of industrial white oil, 1kg of dioctyl maleate and 2.5kg of naphthenic oil, stirring in a heating environment at 180 ℃, wherein the particle size of the NBR rubber powder is 80 meshes, and the particle size of the glass ceramic powder is 200 meshes;
s2, weighing 5kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
Example 24
S1, weighing 110kg of SBS asphalt, 7kg of NBR rubber powder, 12kg of glass ceramic powder, 1kg of PVDC emulsion, 4kg of industrial white oil, 1kg of dioctyl maleate and 2.5kg of naphthenic oil, stirring in a heating environment at 180 ℃, wherein the particle size of the NBR rubber powder is 120 meshes, and the particle size of the glass ceramic powder is 200 meshes;
s2, weighing 5kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
Example 25
S1, weighing 110kg of SBS asphalt, 7kg of NBR rubber powder, 12kg of glass ceramic powder, 1kg of PVDC emulsion, 4kg of industrial white oil, 1kg of dioctyl maleate and 2.5kg of naphthenic oil, stirring in a heating environment at 180 ℃, wherein the particle size of the NBR rubber powder is 100 meshes, and the particle size of the glass ceramic powder is 170 meshes;
s2, weighing 5kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
Example 26
S1, weighing 110kg of SBS asphalt, 7kg of NBR rubber powder, 12kg of glass ceramic powder, 1kg of PVDC emulsion, 4kg of industrial white oil, 1kg of dioctyl maleate and 2.5kg of naphthenic oil, stirring in a heating environment at 180 ℃, wherein the particle size of the NBR rubber powder is 100 meshes, and the particle size of the glass ceramic powder is 230 meshes;
s2, weighing 5kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
Example 27
S1, weighing 120kg of SBS asphalt, 9kg of NBR rubber powder, 15kg of glass ceramic powder, 1kg of PVDC emulsion, 5kg of industrial white oil, 1kg of dioctyl maleate and 3kg of naphthenic oil, stirring in a heating environment at 180 ℃, wherein the particle size of the NBR rubber powder is 100 meshes, and the particle size of the glass ceramic powder is 200 meshes;
s2, weighing 6kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
Comparative example
Comparative example 1
S1, weighing 110kg of SBS asphalt, 7kg of NBR rubber powder, 12kg of glass ceramic powder, 4kg of industrial white oil, 1kg of dioctyl maleate and 2.5kg of naphthenic oil, and stirring in a heating environment at 180 ℃, wherein the particle size of the NBR rubber powder is 100 meshes, and the particle size of the glass ceramic powder is 200 meshes;
s2, weighing 5kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
Comparative example 2
S1, weighing 110kg of SBS asphalt, 7kg of NBR rubber powder, 1kg of PVDC emulsion, 4kg of industrial white oil, 1kg of dioctyl maleate and 2.5kg of naphthenic oil, and stirring in a heating environment at 180 ℃, wherein the particle size of the NBR rubber powder is 100 meshes;
s2, weighing 5kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
Comparative example 3
S1, weighing 110kg of SBS pitch, 12kg of glass ceramic powder, 1kg of PVDC emulsion, 4kg of industrial white oil, 1kg of dioctyl maleate and 2.5kg of naphthenic oil, and stirring in a heating environment at 180 ℃, wherein the particle size of the glass ceramic powder is 200 meshes;
s2, weighing 5kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
Comparative example 4
S1, weighing 110kg of SBS asphalt, 7kg of NBR rubber powder, 4kg of industrial white oil, 1kg of dioctyl maleate and 2.5kg of naphthenic oil, and stirring in a heating environment at 180 ℃, wherein the particle size of the NBR rubber powder is 100 meshes;
s2, weighing 5kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
Comparative example 5
S1, weighing 110kg of SBS pitch, 12kg of glass ceramic powder, 4kg of industrial white oil, 1kg of dioctyl maleate and 2.5kg of naphthenic oil, and stirring in a heating environment at 180 ℃, wherein the particle size of the glass ceramic powder is 200 meshes;
s2, weighing 5kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
Comparative example 6
S1, weighing 110kg of SBS asphalt, 1kg of PVDC emulsion, 4kg of industrial white oil, 1kg of dioctyl maleate and 2.5kg of naphthenic oil, and stirring in a heating environment at 180 ℃;
s2, weighing 5kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
Comparative example 7
S1, weighing 110kg of SBS asphalt, 4kg of industrial white oil, 1kg of dioctyl maleate and 2.5kg of naphthenic oil, and stirring in a heating environment at 180 ℃;
s2, weighing 5kg of epoxy resin and 1kg of 593 amine curing agent, and uniformly stirring and mixing to obtain the crack pouring sealant.
TABLE 1 EXAMPLES AND COMPARATIVE EXAMPLES raw materials Table (kg)
Figure BDA0003286661270000091
Figure BDA0003286661270000101
Performance test the crack pouring adhesives prepared in examples 1-27 and comparative examples 1-7 were tested according to JT/T740-.
Table 2 table of performance testing data
Figure BDA0003286661270000111
By combining the embodiments 2-10 and the table 2, it can be seen that the optimal scheme is selected by adjusting the addition amounts of the PVDC emulsion, the glass ceramic powder and the NBR rubber powder, and the performance of the crack pouring adhesive is effectively improved.
By combining the embodiment 6, the embodiment 13 and the embodiment 14 and combining the table 2, it can be seen that an optimal scheme is selected by adjusting the adding amount of the epoxy resin and the curing agent, the adding of the epoxy resin improves the bonding strength among the components of the crack pouring adhesive, the performance of the crack pouring adhesive is effectively improved, the curing time of the epoxy resin is shortened through the curing agent, and the construction time is shortened.
It can be seen from the combination of embodiment 6 and embodiments 15-22 and table 2 that, the fluidity of the joint sealant is improved while the plasticizing performance of the joint sealant is improved by selecting the addition of the plasticizing agent and the softening agent, so that the penetration of the joint sealant is effectively improved, the connection strength of the joint sealant in a crack is improved, and the condition that the crack cracks are cracked again is reduced.
It can be seen from the combination of the embodiment 6 and the embodiments 23 to 26 and the table 2 that the glass ceramic powder is filled in the gap between the NBR rubber powder by selecting the particle sizes of the NBR rubber powder and the glass ceramic powder, so that the cross-linked network formed by the PVDC emulsion and the NBR rubber powder can tightly connect the glass ceramic powder, and the crack pouring sealant performance can be improved.
It can be seen from the combination of example 6, comparative example 1, comparative example 4 and comparative example 7 and the combination of table 2 that the joint sealant performance is effectively improved by adding the PVDC emulsion, the NBR rubber powder and the glass ceramic powder, because when the components are mixed, the glass ceramic powder fills the gap between the NBR rubber powder, and the PVDC emulsion and the NBR rubber powder are mixed to form a cross-linked network to bond the glass ceramic powder therein, so that the joint strength of the glass ceramic powder, the PVDC emulsion and the NBR rubber powder is effectively improved, and the joint sealant performance is further improved.
Combining example 6, comparative example 4, comparative example 5, comparative example 6 and comparative example 7 with table 2, it can be seen that the improvement of the joint sealant performance is limited by adding only one of the three substances of the PVDC emulsion, the NBR rubber powder and the glass ceramic powder. In addition, in the embodiment 6, the comparative example 1, the comparative example 2, the comparative example 3 and the comparative example 7, and in combination with the table 2, only three substances cooperate to greatly improve the performances of the crack pouring sealant.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.

Claims (8)

1. The asphalt pavement crack pouring adhesive is characterized by comprising the following raw materials in parts by weight: 100-120 parts of SBS asphalt, 15-25 parts of reinforcing agent, 5-7 parts of modifier and 6-9 parts of auxiliary agent, wherein the reinforcing agent comprises NBR rubber powder, glass ceramic powder and PVDC emulsion, and the weight ratio of the NBR rubber powder, the glass ceramic powder and the PVDC emulsion is (3-5): (2-4): 1.
2. the asphalt pavement crack pouring adhesive according to claim 1, characterized in that: the particle size of the NBR rubber powder is 100 meshes, and the particle size of the glass ceramic powder is 200 meshes.
3. The asphalt pavement crack pouring adhesive according to claim 1, characterized in that: the modifier comprises epoxy resin and a curing agent, wherein the weight ratio of the epoxy resin to the curing agent is (4-6): 1.
4. the asphalt pavement crack pouring adhesive according to claim 1, characterized in that: the auxiliary agent comprises a plasticizer and a softening agent, wherein the weight ratio of the plasticizer to the softening agent is (4-6): (2-3).
5. The asphalt pavement crack pouring adhesive according to claim 1, characterized in that: the plasticizer comprises industrial white oil and dioctyl maleate, wherein the weight ratio of the industrial white oil to the dioctyl maleate is (3-5): 1.
6. the asphalt pavement crack pouring adhesive according to claim 1, characterized in that: the softener is naphthenic oil.
7. The preparation method of the asphalt pavement crack pouring adhesive of claims 1-6, which is characterized by comprising the following steps: the method comprises the following steps of heating SBS pitch, adding the reinforcing agent, the modifier and the auxiliary agent, stirring and mixing uniformly to prepare the crack pouring sealant.
8. A method for repairing a crack of an asphalt pavement is characterized by comprising the following steps: the method comprises the following steps of introducing gas into the crack for removing water, dust and broken slag in the crack, pouring crack pouring glue into the crack, and paving a layer of fine sand on the upper layer of the crack pouring glue.
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1064497A (en) * 1991-03-01 1992-09-16 格雷斯公司 Waterproof membrane
CN103265922A (en) * 2013-04-28 2013-08-28 重庆市智翔铺道技术工程有限公司 Cold construction color cementing material for resin concrete
CN103614112A (en) * 2013-11-18 2014-03-05 北京宇阳泽丽防水材料有限责任公司 Modified asphalt mastic and wet-laying waterproof coiled material
CN104212410A (en) * 2014-09-11 2014-12-17 北京东方雨虹防水技术股份有限公司 Steel bridge epoxy asphalt waterproof binding material as well as preparation method and application thereof
KR101508888B1 (en) * 2014-12-15 2015-04-07 최병덕 Waterproof sheet
CN110760194A (en) * 2019-11-05 2020-02-07 长春建业集团股份有限公司 Pavement crack pouring material and preparation method and application thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1064497A (en) * 1991-03-01 1992-09-16 格雷斯公司 Waterproof membrane
CN103265922A (en) * 2013-04-28 2013-08-28 重庆市智翔铺道技术工程有限公司 Cold construction color cementing material for resin concrete
CN103614112A (en) * 2013-11-18 2014-03-05 北京宇阳泽丽防水材料有限责任公司 Modified asphalt mastic and wet-laying waterproof coiled material
CN104212410A (en) * 2014-09-11 2014-12-17 北京东方雨虹防水技术股份有限公司 Steel bridge epoxy asphalt waterproof binding material as well as preparation method and application thereof
KR101508888B1 (en) * 2014-12-15 2015-04-07 최병덕 Waterproof sheet
CN110760194A (en) * 2019-11-05 2020-02-07 长春建业集团股份有限公司 Pavement crack pouring material and preparation method and application thereof

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