CN105906232A - Repairing mortar for bridge pavement repairing paving, and preparation method and construction method thereof - Google Patents
Repairing mortar for bridge pavement repairing paving, and preparation method and construction method thereof Download PDFInfo
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- CN105906232A CN105906232A CN201610255225.0A CN201610255225A CN105906232A CN 105906232 A CN105906232 A CN 105906232A CN 201610255225 A CN201610255225 A CN 201610255225A CN 105906232 A CN105906232 A CN 105906232A
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- mending mortar
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/14—Polyepoxides
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/48—Macromolecular compounds
- C04B41/4853—Epoxides
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Road Repair (AREA)
Abstract
The invention provides a repairing mortar for bridge pavement repairing paving, and a preparation method and a construction method thereof. The repairing mortar for bridge pavement repairing paving is prepared through adding ingredients to bisphenol A epoxy resin, a curing agent, an active diluent and aggregates and mixing above materials, the repairing method has a fast setting speed, the early compression strength, the early bending strength and the early bonding bending strength of the repairing mortar can met fitted traffic opening strength indexes, the later strength of the repairing mortar is high, and the repairing mortar also has good ductility, and can well meet local rapid repairing technology requirements of a cement concrete bridge pavement paving layer; the preparation method of the repairing mortar for bridge pavement repairing paving has the advantages of simple operation flow, easy onsite construction operation, and suitableness for local rapid repairing of the bridge paving layer pavement; and the pavement repairing laying construction method of the repairing mortar combines the advantages of high compression strength, high bending strength and high bonding bending strength, and realizes good repairing quality and long service life of the repaired paving position.
Description
Technical field
The present invention relates to bridge pave-load layer patching material technical field, particularly relate to a kind of for repairing that bridge pavement repairing is mated formation
Stop-off slurry, preparation method and construction method.
Background technology
Owing to bridge mostly is transport node position, the destruction of bridge pavement pave-load layer is limited by traffic and environmental factors, sick
Evil tends not to be repaired in time and renovate, and has had a strong impact on the safety traffic of vehicle and the service life of bridge.At present,
The repair of cementing pump vehicle pave-load layer mainly has following three kinds of processing methods: one, bridge pavement entirety asphalt overlay；
Two, bridge pavement entirety making cement concrete again renovation；Three, patching material excavation filling mend is used in local.No matter it is overall
The common issue that renovation or local excavation filling mend all suffer from is all that the close traffic time is long, needs to close after usual repairing construction
Traffic more than 7 days, this can bring huge pressure to the traffic of urban road, bring to the traffic coordinating of vehicle supervision department
Huge trouble.How to enable cementing pump vehicle road pavement layer disease be repaired in time, become urgently to be resolved hurrily
A great problem.
Current domestic fast repairing material specifically includes that special cement class mending mortar, fibre modification concrete, Rapid-Repair
Agent or admixture class concrete and polymer modification concrete.But it is proven: the cement typically repaired through special cement mixes
Solidifying dirt road (bridge) face there will be later strength retraction phenomenon, and wearability, linking new and old concrete performance are undesirable etc. asks
Topic；The construction of fiber concrete patching material is more complicated, and needs longer its comprcssive strength hardening time, bend resistance intensity etc.
Mechanical strength properties can be only achieved pavement usage index, it is therefore desirable to the time of close traffic is longer, can not meet coagulating cement
The requirement that the soil bridge pavement construction close traffic time is shorter；Mix additive, blending concrete hydration reaction easily because of outward
Add agent volume skewness or the amount of participating in is too much, cause hydration reaction uneven, cause final repair efficiency undesirable；
The necessary conservative control addition of polymer concrete, just can develop the fast repairing material that high-quality is practical, its material configuration difficulty
Degree is big, it is difficult to be suitable at road repair site operation.It practice, the various patching materials being used for Practical Project exist all
Many weak points, its effect is unsatisfactory, and China's cementing pump vehicle road pavement layer disease remains serious at present.
Therefore, a kind of hardening time is shorter, mechanical strength is higher, repairing quality is good, the patching material of length in service life to be badly in need of exploitation,
Make up the technology vacancy of repair materials used by bridge pave-load layer.
Summary of the invention
It is directed to defect present in prior art, it is an object of the invention to provide a kind of repairing for bridge pavement and mat formation
Mending mortar, this mending mortar just can reach higher mechanical strength after shorter hardening time, it is possible to faster
Reach pavement usage index, well meet bridge pavement construction close traffic time shorter requirement, it is possible to existing in order to make up
There is the technology vacancy of repair materials used by technology Bridge pave-load layer.
To achieve these goals, present invention employs following technical scheme:
A kind of mending mortar mated formation for bridge pavement repairing, its ingredient groups is divided and is included epoxy resin 12～20 weight portion, answers
Close firming agent 5～10 weight portion, diluent 0.75～1.8 weight portion and 100 weight portions that gather materials；Wherein, epoxy resin is adopted
Use E51 bisphenol A type epoxy resin；Composite curing agent is according to (3～4) by T31 type firming agent and 651 type firming agent: 1
Mixing compounding form.
Above-mentioned in the mending mortar that bridge pavement repairing is mated formation, preferably, the E51 bisphenol A-type ring used
Epoxy resins need to meet following performance indications and require: epoxide number is 0.513～0.543mol/100g, and when 25 DEG C, viscosity number is
10～16Pa s, hydrolyzable chlorine content is less than or equal to 0.02mol/100g, and content of inorganic chlorine is less than or equal to 0.003mol/100g,
Volatile matter total content is less than or equal to 0.5%.
Above-mentioned in the mending mortar that bridge pavement repairing is mated formation, preferably, compounding composite curing agent is used
T31 type firming agent need to meet following performance indications and require: amine number is 460～500mgkoH/g, and when 25 DEG C, viscosity number is
1.1～1.3Pa s；The 651 type firming agent that compounding composite curing agent is used need to meet following performance indications and require: amine number is
300～320mgkoH/g, when 25 DEG C viscosity number reach 13Pa s or more than.
Above-mentioned in the mending mortar that bridge pavement repairing is mated formation, preferably, described diluent is diesel oil.
Above-mentioned repair in the mending mortar mated formation for bridge pavement, preferably, described in the grain composition requirement gathered materials
For: the grader retained percentage of 4 mesh standard sieves is 0%, and the grader retained percentage of 8 mesh standard sieves is 18.93～38.72%,
The grader retained percentage of 16 mesh standard sieves is 15.22～23.56%, and the grader retained percentage of 30 mesh standard sieves is
12.09～14.23%, the grader retained percentage of 50 mesh standard sieves is 9.03～18.29%, and a point meter for 100 mesh standard sieves tails over
Percentage rate is 5.56～17.47%, and the grader retained percentage of 200 mesh standard sieves is 8.90～18.00%.
Correspondingly, present invention also offers the preparation method of above-mentioned mending mortar；To this end, the present invention used following skill
Art scheme:
The above-mentioned preparation method repairing the mending mortar mated formation for bridge pavement, it is characterised in that comprise the steps:
1) according to above-mentioned dispensing component, get out enough epoxy resin, composite curing agent, diluent and gather materials；
2) will gather materials stir in glue sand agitated kettle after standby；
3) by dispensing component, diluent was added to joining in glue bucket equipped with epoxy resin, and be stirred continuously until with agitator
Mix homogeneously, obtains epoxy resin diluent；
4) by dispensing component, composite curing agent is added to joining in glue bucket equipped with above-mentioned steps gained epoxy resin diluent,
And it is stirred continuously until mix homogeneously with agitator, obtain epoxide-resin glue；
5) by dispensing component by step 4) epoxide-resin glue of gained adds to equipped with step 2) the standby glue sand gathered materials of gained
In agitated kettle, start glue sand agitated kettle and be stirred continuously until mix homogeneously, i.e. obtain as claimed in claim 1 for bridge
The mending mortar that pavement patching is mated formation.
Correspondingly, present invention also offers and use the pavement patching pavement construction method of above-mentioned mending mortar；To this end, the present invention
Used following technical scheme:
A kind of pavement patching pavement construction method, uses above-mentioned mending mortar road pavement breakage to carry out repairing and mats formation, specifically
Comprise the steps:
A) road pavement breakage carries out cutting, cutting process, is formed and repair pavement groove at road surface breakage；
B) above-mentioned mending mortar is prepared according to above-mentioned preparation method at the construction field (site) standby, and according to above-mentioned preparation method
In step 3) and 4) additionally to prepare epoxide-resin glue standby；
C) sidewall repairing pavement groove at road surface breakage and the epoxide-resin glue of the middle preparation of bottom surface squeegeeing step b)；
D) in being coated with the repairing pavement groove brushing epoxide-resin glue, the mending mortar of preparation in step b) is successively poured, until will
Repair pavement groove to fill and lead up in road surface；When pouring each layer of mending mortar, the one layer of mending mortar that paving need to be entered pave smooth after,
With wooden tamper, mending mortar layer is plugged and pounded closely knit, after having plugged and pounded, strike off unnecessary mending mortar floating with spatula；Pour
The thickness of each layer of mending mortar less than 5cm；
E) repairing in pavement groove at road surface breakage successively pours after the operation of mending mortar completes, and stands, until mending mortar
After solidification, pavement patching pavement construction i.e. completes.
In above-mentioned pavement patching pavement construction method, preferably, in described step d), pour each layer of repairing
During mortar, the concrete operations mode plugged and pounded mending mortar layer with wooden tamper is as follows: for currently spread into one repair
Stop-off pulp layer, is plugged and pounded to center from edge by the direction of spiral clockwise or counterclockwise, and when plugging and pounding operation, tamper keeps hanging down
Directly, and plug and pound density and determine, every 100cm at the tiling area repaired in pavement groove according to the mending mortar layer currently spread2
The mending mortar layer of tiling area, uses tamper to carry out plugging and pounding the number of times of operation no less than 12 times；Use tamper to carry out every time
When plugging and pounding operation, if currently spread into mending mortar layer be the bottom, tamper should be inserted to repair pavement groove bottom surface, if currently
Spread into mending mortar layer be not the bottom, then tamper should be inserted to be absorbed in next adjacent mending mortar layer 20～30mm degree of depth；
After having plugged and pounded, strike off unnecessary mending mortar floating with spatula.
In above-mentioned pavement patching pavement construction method, preferably, the operation total duration of construction of described step d) needs
Within 15 minutes.
In above-mentioned pavement patching pavement construction method, preferably, in described step e), time of repose is 2～3
Hour.
Compared to prior art, there is advantages that
1, the present invention for bridge pavement repair the mending mortar mated formation can in 3 hours primary solidification, its early stage resists
The intensity index that pressure, bend resistance and bonding buckling strength should reach when disclosure satisfy that the open to traffic drafted, and later strength
Height, has good ductility, it is possible to the technology well meeting cementing pump vehicle road pavement layer local Rapid-Repair is wanted
Ask, it is adaptable to the local Rapid-Repair on bridge pave-load layer road surface.
2, the present invention repairs the preparation method of the mending mortar mated formation for bridge pavement, and operating process is simple, it is easy to on-the-spot
Constructing operation, it is adaptable to the local Rapid-Repair on bridge pave-load layer road surface.
3, the pavement patching pavement construction method of the present invention, combines mending mortar resistance to compression of the present invention, bend resistance and bonds curved
The advantage that folding intensity is higher, repairing quality is good, and is suitable to site operation, repairs place of mating formation long for service life.
Accompanying drawing explanation
Fig. 1 is the flow chart that the present invention repairs the preparation method of the mending mortar mated formation for bridge pavement.
Fig. 2 is the pictorial diagram that in embodiment one, the present invention repairs the mending mortar resistance to compression test specimen mated formation for bridge pavement.
Fig. 3 is the pictorial diagram that in embodiment one, the present invention repairs the mending mortar bending resistance test specimen mated formation for bridge pavement.
Fig. 4 is the pictorial diagram of FM type concrete anti-compression test specimen in embodiment four.
Fig. 5 is the pictorial diagram of FM type concrete bending resistance test specimen in embodiment four.
Fig. 6 is that in embodiment four, the present invention carries out 3 bending examinations for the mending mortar bending resistance test specimen that bridge pavement repairing is mated formation
The stress-strain curve diagram tested.
Fig. 7 is the stress-strain curve diagram that in embodiment four, FM type concrete bending resistance test specimen carries out 3 cripping tests.
Fig. 8 is to use the present invention to repair, for bridge pavement, the mending mortar mated formation in embodiment five to mat formation H bridge bridge pavement
Layer carries out the work flow schematic diagram of reparation construction.
Detailed description of the invention
The invention provides a kind of mending mortar repaired for bridge pavement and mat formation, its ingredient groups is divided and is included epoxy resin
12～20 weight portions, composite curing agent 5～10 weight portion, diluent 0.75～1.8 weight portion and 100 weight portions that gather materials；Its
In, epoxy resin uses E51 bisphenol A type epoxy resin；Composite curing agent is by T31 type firming agent and 651 type firming agent
According to (3～4): the mixing of 1 is compounding to be formed.Compared with pavement patching material commonly used in the prior art, the repairing sand of the present invention
Slurry, just can reach higher mechanical strength, it is possible to quickly reach pavement usage index after shorter hardening time
And come into operation, bridge pavement construction close traffic time shorter requirement can well be met；And this mending mortar material
Material mechanical strength after long-term use is the highest, and endurance quality is good, and service life is long.Therefore, the repairing of the present invention
Mortar can be in order to make up repair materials used by prior art Bridge pave-load layer and the technology vacancy of preparation thereof.
Repair in the mending mortar mated formation in the present invention for bridge pavement, as the E51 bisphenol A-type ring of principal ingredients component
Epoxy resins and composite curing agent, it is desirable to reach certain performance indications requirement, in just better assuring that its short time
Reach higher mechanical strength and preferable ductility.Specifically, the E51 bisphenol A type epoxy resin used is best
Following performance indications need to be met require: epoxide number is 0.513～0.543mol/100g, and when 25 DEG C, viscosity number is 10～16Pa s,
Hydrolyzable chlorine content is less than or equal to 0.02mol/100g, and content of inorganic chlorine is less than or equal to 0.003mol/100g, and volatile matter is total
Content is less than or equal to 0.5%.And compounding in composite curing agent, the T31 type firming agent used need to meet following performance and refer to
Mark requires: amine number is 460～500mgkoH/g, and when 25 DEG C, viscosity number is 1.1～1.3Pa s；The 651 type firming agent used
Following performance indications need to be met require: amine number is 300～320mgkoH/g, when 25 DEG C viscosity number reach 13Pa s or more than.
And diluent, then can use the diluent materials commonly used in pavement patching material commonly used in the prior art；It is desirable that choosing
Selecting diesel oil as the diluent in mending mortar of the present invention, diesel oil not only facilitates the fast setting of mending mortar of the present invention, and
And can with meet E51 bisphenol A type epoxy resin that above-mentioned performance indications require and composite curing agent coordinate and is mixed to form combination
The epoxide-resin glue that power is stronger, after gathering materials and mixing mutually, it is possible to strengthens the adhesion after solidification in mending mortar of the present invention.Collection
Material can also use the aggregate material commonly used in pavement patching material commonly used in the prior art, but preferably, this
The grain composition gathered materials in invention mending mortar is preferably able to reach following requirement: a point meter for 4 mesh standard sieves tails over percentage
Rate is 0%, and the grader retained percentage of 8 mesh standard sieves is 18.93～38.72%, the grader retained percentage of 16 mesh standard sieves
Being 15.22～23.56%, the grader retained percentage of 30 mesh standard sieves is 12.09～14.23%, point meter sieve of 50 mesh standard sieves
Remaining percentage rate is 9.03～18.29%, and the grader retained percentage of 100 mesh standard sieves is 5.56～17.47%, 200 mesh standard sieves
Grader retained percentage be 8.90～18.00%；Such aggregate particle grating contributes to condensation by mixing, and keeps better
Endurance quality so that it is the service life after reparation is longer.
The preparation method that the present invention repairs, for bridge pavement, the mending mortar mated formation is relatively simple, it is easy to on-site construction operations,
Its preparation flow is as it is shown in figure 1, comprise the steps:
1) according to the dispensing component of mending mortar of the present invention, enough epoxy resin, composite curing agent, diluent are got out
With gather materials；
2) will gather materials stir in glue sand agitated kettle after standby；
3) by dispensing component, diluent was added to joining in glue bucket equipped with epoxy resin, and be stirred continuously until with agitator
Mix homogeneously, obtains epoxy resin diluent；
4) by dispensing component, composite curing agent is added to joining in glue bucket equipped with above-mentioned steps gained epoxy resin diluent,
And it is stirred continuously until mix homogeneously with agitator, obtain epoxide-resin glue；
5) by dispensing component by step 4) epoxide-resin glue of gained adds to equipped with step 2) the standby glue sand gathered materials of gained
In agitated kettle, start glue sand agitated kettle and be stirred continuously until mix homogeneously, i.e. obtain as claimed in claim 1 for bridge
The mending mortar that pavement patching is mated formation.
In above-mentioned preparation flow, step 3) in be stirred continuously until time of mix homogeneously and be usually 3～5 minutes；Described step
Rapid 4) time being stirred continuously until mix homogeneously in is usually 3～5 minutes；Described step 5) in be stirred continuously until mixed
Closing the uniform time is usually 5～10 minutes；But really in constructing operation, difference and batch mixing according to total amount of preparation set
The difference of standby performance, mixing required time is also not quite similar.
Below by specific embodiment, come technical scheme and technique effect further instruction in addition.
Embodiment one:
In the present embodiment, repair the different ratio of the mending mortar mated formation for the present invention for bridge pavement, make anti-respectively
Pressure test specimen and bend resistance test specimen, test the present invention strong for the resistance to compression of mending mortar, the bend resistance that bridge pavement repairing is mated formation
Degree, to embody the mechanical strength properties of mending mortar of the present invention.In the present embodiment, it is respectively adopted 7 kinds of differences, has distinguished
The mending mortar of the preparation present invention, the dispensing component situation of each proportioning is as shown in table 1:
Table 1
| Epoxy resin | Firming agent | Diluent | Gather materials | |
| Proportioning 1 | 12 weight portions | 7.5 weight portion | 0.75 weight portion | 100 weight portions |
| Proportioning 2 | 15 weight portions | 7.5 weight portion | 0.75 weight portion | 100 weight portions |
| Proportioning 3 | 20 weight portions | 7.5 weight portion | 0.75 weight portion | 100 weight portions |
| Proportioning 4 | 15 weight portions | 5 weight portions | 0.75 weight portion | 100 weight portions |
| Proportioning 5 | 15 weight portions | 10 weight portions | 0.75 weight portion | 100 weight portions |
| Proportioning 6 | 15 weight portions | 7.5 weight portion | 1.5 weight portion | 100 weight portions |
| Proportioning 7 | 15 weight portions | 7.5 weight portion | 1.8 weight portion | 100 weight portions |
Based on above-mentioned proportioning 1～these 7 kinds of different proportionings of proportioning 7, make the present invention according to the preparation method of the present invention respectively
Mending mortar, and use and manually plug and pound to closely knit, then by the floating mode of trowel, manufacturing specification is 100mm respectively
× 100mm × 100mm cubical mending mortar resistance to compression test specimen and specification are 40mm × 40mm × 160mm prism
Mending mortar bend resistance test specimen, obtained mending mortar resistance to compression test specimen and bend resistance test specimen are the most as shown in Figures 2 and 3；
The most each mending mortar resistance to compression test specimen and bend resistance test specimen are put into baking oven, allow it be solidified in the isoperibol of 30 DEG C
Type, and within every 30 minutes, observe once its solidification situation, and carry out resistance to compression and bend resistance mechanical property test in time.Thus,
Have recorded said ratio 1～the respective resistance to compression test specimen of proportioning 7 comprcssive strength when 3 little constantly with 7 days and bend resistance intensity data,
As shown in table 2:
Table 2
According to the mechanical experimental results shown in table 2, it can be seen that the mending mortar of the present invention is the isoperibol of 30 DEG C
Middle solidification just can reach preferable resistance to compression, bend resistance strength character after 3 hours, can substantially meet bridge road traffic
Use demand, and the traffic that resistance to compression after 7 days, bend resistance strength character have been fully able to meet road and bridge pavement of road makes
Use demand.
Embodiment two:
In the present embodiment, in order to verify that the compound scheme of composite curing agent in repairing mortar of the present invention and consumption are to mortar performance
Impact, when preparing repairing mortar, first retainer ring epoxy resins, diluent and the weight gathered materials, wherein diluent
Consumption is the 5% of epoxy resin, and epoxy resin is 15:100 with the weight ratio gathered materials；Then, composite solid is adjusted
In agent, the compound proportion of T31 type firming agent and 651 type firming agent is respectively 3:1 or 4:1, and adopts in repairing mortar
With different composite curing agent consumptions, to use epoxy resin and the weight ratio of composite curing agent be 3:1,2:1,
Three kinds of different amounts schemes of 1.5:1, respectively in the case of aforesaid two kinds of composite curing agent compound schemes, according to the present invention
Preparation method make the mending mortar of the present invention, and use and manually plug and pound to closely knit, then by the floating mode of trowel,
Making shape specification as shown in Figure 2 respectively is 100mm × 100mm × 100mm cubical mending mortar resistance to compression test specimen,
And the mending mortar bend resistance test specimen that the specification that shape is as shown in Figure 3 is 40mm × 40mm × 160mm prism, then
Respectively each mending mortar resistance to compression test specimen and bend resistance test specimen are put into baking oven, allow its curing molding in the isoperibol of 30 DEG C.
Thus, the resistance to compression test specimen that have recorded composite curing agent corresponding under different compound schemes and different amounts is little constantly with 7 days 3
Time comprcssive strength and bend resistance intensity data, as shown in table 3:
Table 3
By table 3 it will be seen that in repairing mortar of the present invention, the weight of epoxy resin and composite curing agent uses 3:
The ratio of 1, and in the case of in composite curing agent, the compound proportion of T31 type firming agent and 651 type firming agent is 4:1, institute
Comprcssive strength and the bend resistance intensity of the repairing mortar of the present invention obtained are the most excellent, be performance more equalize, preferably composite solid
Agent compounds and consumption scheme.
Embodiment three:
In the present embodiment, in order to verify the impact of the variable grain level pairing mortar performance gathered materials in repairing mortar of the present invention,
During preparation repairing mortar, epoxy resin, composite curing agent, diluent and the weight gathered materials use in embodiment one
The scheme of proportioning 2, the grain size distribution wherein gathered materials is respectively adopted 3 kinds of different grain composition schemes, as shown in table 4.
Table 4
Equally, under the weight scheme of proportioning 2, be respectively directed to above-mentioned grain composition scheme 1., 2., 3. according to
The preparation method of the present invention makes the mending mortar of the present invention, and employing manually plugs and pounds to closely knit, then floating with trowel
Mode, making shape specification as shown in Figure 2 respectively is 100mm × 100mm × 100mm cubical mending mortar resistance to compression
Test specimen, and the mending mortar bend resistance test specimen that the specification that shape is as shown in Figure 3 is 40mm × 40mm × 160mm prism,
The most each mending mortar resistance to compression test specimen and bend resistance test specimen are put into baking oven, allow it be solidified in the isoperibol of 30 DEG C
Type.In the present embodiment, mainly by the voidage of mending mortar test specimen, the workability of mending mortar (are presented as and sink to
Degree index) and comprcssive strength and bend resistance intensity data when 7 days measure, the test of each grain composition scheme test specimen
Data are as shown in table 5.
Table 5
As can be seen from Table 5, equally under the weight scheme of proportioning 2, grain composition scheme voidage 2. and
0.15～0.075 particle diameter amount ratio is more moderate, illustrates that epoxide-resin glue fully wraps up surface of aggregate under this grating, and fills collection
Space between material, the workability of mending mortar is preferable simultaneously, and comprcssive strength and bend resistance intensity are the most more satisfactory, each side
Performance more equalizes.As can be seen here, 2. the grain composition scheme gathered materials is preferably grain composition scheme.
Embodiment four:
In order to preferably embody the performance of repairing mortar of the present invention, the present embodiment uses bridge pavement commonly used in the prior art paving
Dress layer repair materials carries out test comparison with repairing mortar of the present invention.
What cementing pump vehicle road pavement layer local damage Rapid-Repair employing at present was most is quick hardening cement, and its hour strong
After degree height, construct simple, low cost and repairing, in a period of time, effect is pretty good, but most repairing after a period of time that is open to traffic
Destroying occurs the most again in layer.For verifying that the repair efficiency of mending mortar of the present invention is better than existing patching material, carry out quick-drying
Cement and the performance comparison test of mending mortar of the present invention.
The kind of quick hardening cement is a lot, and the present embodiment test selects Chongqing City's municipal administration bridge water cement concrete pave-load layer local quickly
Repair the quick hardening cement kind commonly used, i.e. FM type concrete.Wherein, when preparing FM type concrete, FM type
Number cement replaces ordinary cement as unique gel rubber material completely, and the composition proportion of FM type concrete is as shown in table 6.
Table 6
| FM model cement | Medium sand | Stone | Water |
| 410～430 weight portions | 620～670 weight portions | 1100～1200 weight portions | 165～175 weight portions |
And in the present embodiment, use the mending mortar of the present invention of proportioning 2 in embodiment one to participate in contrast with FM type concrete.
Afterwards, use and manually plug and pound to closely knit, then by the mode that trowel is floating, be respectively adopted FM type concrete and said ratio
The mending mortar manufacturing specification of the present invention of 2 is 100mm × 100mm × 100mm cubical FM type concrete anti-compression test specimen
With mending mortar resistance to compression test specimen, and and FM type concrete that manufacturing specification is 40mm × 40mm × 160mm four prisms cylinder
Bending resistance test specimen and mending mortar bending resistance test specimen.Wherein, the mending mortar resistance to compression test specimen of the present invention of embodiment one proportioning 2 is used to exist
In Fig. 2 it was shown that FM type concrete anti-compression test specimen as shown in Figure 4；The present invention using embodiment one proportioning 2 repairs sand
Slurry bending resistance test specimen in figure 3 it was shown that FM type concrete bending resistance test specimen as shown in Figure 5.
The present embodiment is mainly strong at resistance to compression, the bend resistance of different times by contrast FM type concrete and mending mortar of the present invention
Degree and stress-strain diagram, summarize two kinds of respective pluses and minuses of patching material.Wherein, try for FM type concrete anti-compression
Part and FM type concrete bending resistance test specimen test the resistance to compression of gained, bend resistance intensity data as shown in table 7, for the present invention's
Mending mortar resistance to compression test specimen and mending mortar bending resistance test specimen the experiment resistance to compression of gained, bend resistance intensity data are as shown in table 8.
The resistance to compression of table 7 FM type concrete sample, bend resistance intensity data
The resistance to compression of table 8 mending mortar of the present invention test specimen, bend resistance intensity data
Meanwhile, FM type concrete anti-compression test specimen and FM type concrete bending resistance test specimen the experiment resistance to compression of gained, bending resistance it are also directed to
Folding intensity data and the mending mortar resistance to compression test specimen of the present invention and mending mortar bending resistance test specimen test the resistance to compression of gained, bend resistance
Intensity data, has obtained the stress-strain diagram of FM type concrete and mending mortar of the present invention the most as shown in Figure 6 and Figure 7.
By in the present embodiment for FM type concrete and the performance comparison test of mending mortar of the present invention, find that FM type mixes
Solidifying soil is repaired for bridge pavement pave-load layer to be occurred the most again destroying, and its basic reason is FM type concrete
Be fragile material, and bend resistance intensity be the highest, when sectional repair when overload of vehicle or to bridge pavement produce vertical
Brittle cracking is there is immediately in impulsive force when exceeding its bend resistance intensity；And mending mortar of the present invention has preferable ductility, at peak
Also there is after value stress certain intensity, and bend resistance intensity is higher, therefore can speculate the repairing effect of mending mortar of the present invention
Fruit and all can be substantially better than FM type concrete service life.
Embodiment five:
Repair the repair efficiency of the mending mortar mated formation for bridge pavement in order to preferably embody the present invention, i.e. real road is used
Performance, in the present embodiment, example combines Practical Project and studies with the mending mortar Rapid-Repair cementing pump vehicle of the present invention
The construction technology of road pavement layer and pavement performance.
The present embodiment is directed to certain H bridge on important traffic main artery, Yu Zhong district, Chongqing City, as experimental subject.This bridge bridge road
Face pave-load layer was reinforced concrete floor originally, bridge pavement pave-load layer badly broken, therefore planned H bridge bridge pavement pave-load layer
Breakage is renovated.Initially hand over according to the arrangement and method for construction of conventional repair technology establishment, construction period length and half range to be closed
Logical, traffic organization is the devil and must not have been carried out.In the case, final determine to use that the present invention proposes for bridge
The mending mortar that pavement patching is mated formation, repaired this bridge pavement pave-load layer at night.
H bridge bridge pavement pave-load layer is carried out reparation construction, needs the work flow of execution as shown in Figure 8, its concrete work
Industry operating procedure is as follows:
On-site inspection before step one, construction.Before bridge pavement pave-load layer local damage is repaired, need former
The breakage of pave-load layer carries out on-site inspection, investigation content specifically include that breakage type, position and the volume mended by replacing a damaged part,
The traffic flow of day part, on-the-spot interference factor etc., perform relevant field investigation record simultaneously.
Step 2, traffic control.After completing the on-site inspection of breakage, before bridge pavement pave-load layer is repaired,
Need construction area totally-enclosed, and perform warning mark, the repair layer that firm making not yet solidifies, must not park any machinery,
Equipment, prevents vehicle and pedestrian from entering simultaneously, destroys the bridge pavement of new making.
Prepare before step 3, construction.Construction traffic, equipment and instrument are put and puts in place, and check its operation conditions on request
The best；Patching material is put in place along construction direction transport；Workmen is confided a technological secret.
Step 4, pavement patching pavement construction.The mending mortar using the present invention carries out repairing to bridge pavement breakage and mats formation,
This construction process specifically includes following steps:
A) road pavement breakage carries out cutting, cutting process, is formed and repair pavement groove at road surface breakage.
During cutting, typically pave-load layer breakage is excavated into the shape of rule, such as rectangle, triangle and regular polygon, because of
This, need before excavation the scope mended by replacing a damaged part is carried out setting-out, it is ensured that mend the systematicness of shape by replacing a damaged part；Then, with cutting machine along putting
Pave-load layer is cut by line-transect, owing to this engineering pave-load layer is reinforced concrete floor, needs Slice by slice cutting, every time the thickness of cutting
Degree is 4～6cm, guards against bar cutting, and Zhongdao reinforcing bar end face stops cutting.When cutting, pneumatic pick is used to cut out
Bridge pavement breakage of mating formation carry out impact grinding, be crushed to bottom pave-load layer, and manually carry out with chisel cutting process；
Then, the repairing pavement groove that labor cleaning is formed after cutting, and use blowing apparatus to clean repairing pavement groove, it is ensured that repair paving
The cleaning of tankage；If having hydrops in repairing pavement groove, hydrops need to be got rid of, it is ensured that repair pavement groove and be dried.
B) at the construction field (site) according to abovementioned steps 1 of the present invention)～5) preparation method to prepare the mending mortar of the present invention standby,
And according to the step 3 in aforementioned preparation process) and 4) additionally to prepare epoxide-resin glue standby.
Wherein, the concrete mode additionally preparing epoxide-resin glue is: first according to the epoxy resin used when preparing mending mortar with
The weight of diluent, adds diluent to joining in glue bucket equipped with epoxy resin, and continuously stirred directly with agitator
To mix homogeneously, obtain epoxy resin diluent；Then according to the epoxy resin used when preparing mending mortar and composite curing agent
Weight, composite curing agent was added to joining in glue bucket equipped with above-mentioned gained epoxy resin diluent, and with stirring
Device is stirred continuously until mix homogeneously, i.e. obtains epoxide-resin glue.
C) sidewall repairing pavement groove at road surface breakage and the epoxide-resin glue of the middle preparation of bottom surface squeegeeing step b), in order to
Strengthen the cementitiousness of cement concrete and mending mortar of the present invention.
D) in being coated with the repairing pavement groove brushing epoxide-resin glue, the mending mortar of preparation in step b) is successively poured, until will
Repair pavement groove to fill and lead up in road surface；When pouring each layer of mending mortar, the one layer of mending mortar that paving need to be entered pave smooth after,
With wooden tamper, mending mortar layer is plugged and pounded closely knit, after having plugged and pounded, strike off unnecessary mending mortar floating with spatula；Pour
The thickness of each layer of mending mortar less than 5cm.
In step d), when pouring each layer of mending mortar, concrete behaviour mending mortar layer plugged and pounded with wooden tamper
Make mode as follows: for currently spread into a mending mortar layer, by the direction of spiral clockwise or counterclockwise from edge to
The heart plugs and pounds, and when plugging and pounding operation, tamper keeps vertical, and plug and pound density according to currently spread into mending mortar layer spread repairing
Tiling area in tankage and determine, every 100cm2The mending mortar layer of tiling area, uses tamper to carry out plugging and pounding the secondary of operation
Number is no less than 12 times；When using tamper to carry out plugging and pounding operation every time, if currently spread into mending mortar layer be the bottom, smash
Rod should be inserted to repair pavement groove bottom surface, if currently spread into mending mortar layer be not the bottom, then tamper should be inserted to be absorbed in phase
Next adjacent mending mortar layer 20～30mm degree of depth；After having plugged and pounded, strike off unnecessary mending mortar floating with spatula.
Such plug and pound mode, it is possible to plug and pound closely knit by each layer of mending mortar, contribute to strengthening between each layer mending mortar poured
Adhesion, and then strengthen repairing bulk strength and the tolerance level of repairing mortar after pavement construction.
Meanwhile, the operation total duration of construction of step d) is preferably able within 15 minutes complete, because overlong time meeting
Cause mortar solidification to lose construction activity, the binding ability between the different layers mending mortar that pours and repairing are mated formation and executes
After work, the bulk strength of repairing mortar adversely affects.
E) repairing in pavement groove at road surface breakage successively pours after the operation of mending mortar completes, and stands, until mending mortar
After solidification, pavement patching pavement construction i.e. completes.Wherein, time of repose is usually 2～3 hours, and the concrete time regards actual
Depending on ambient temperature.
Step 5, open to traffic.After pavement patching pavement construction completes, after clean for site operation garbage-cleaning also entrucking
Get final product open to traffic.
By the present embodiment, Yu Zhong district, Chongqing City H bridge bridge pavement mending mortar of the present invention is carried out the reality of sectional repair
Engineering application, is concluded that
One, the early stage repair efficiency of mending mortar of the present invention is good.Merely with vehicle flowrate at night less time repair, to clear
Morning gets final product open to traffic, and the close traffic time is about 7 hours altogether；Mending mortar repair layer table of the present invention during open to traffic
Face is smooth, pitted skin, significant shrinkage or expansion does not occurs；Vehicle, by smooth ride during mend, does not finds jumping phenomena,
Under Vehicle Load, mending mortar repair layer of the present invention does not occurs that excessive deformation or crack occur.
Two, the long-term repair efficiency of mending mortar of the present invention is good.Up to the present one it has been open to traffic after bridge pavement sectional repair
The time in year half, from the point of view of situation is observed in the tracking of this year and a half: mending mortar repair layer later strength of the present invention is high, substantially
There is no sedimentation and deformation；Endurance quality is good, under the effect of vehicular load and external environment, crack does not the most occur, and
There is not abrasion, the aging or situation of peeling in surface；When vehicle travels steadily, jumping phenomena is not found.
In general, the present invention for bridge pavement repair the mending mortar mated formation can primary solidification at short notice, before it
The intensity index that phase resistance to compression, bend resistance and bonding buckling strength should reach when disclosure satisfy that the open to traffic drafted, and later stage
Intensity is high, has good ductility, it is possible to well meet the skill of cementing pump vehicle road pavement layer local Rapid-Repair
Art requirement, it is adaptable to the local Rapid-Repair on bridge pave-load layer road surface.Meanwhile, the mending mortar of the present invention, it is possible not only to use
Repairing in bridge pavement and mat formation, the reparation for common carriage way road pavement layer local damage is equally applicable；And due to
The mending mortar of the present invention spends higher feature before comprcssive strength and bend resistance after having short time (2～3 hours) solidification, special
It is not applicable to bridge pavement short time close traffic carry out repairing the requirement mated formation.Additionally, the present invention repairs for bridge pavement
The preparation method of the mending mortar mated formation, operating process is simple, it is easy to on-site construction operations, it is adaptable to bridge pave-load layer road surface
Local Rapid-Repair.The pavement patching pavement construction method of the present invention, combines mending mortar resistance to compression of the present invention, bend resistance
And the advantage that bonding buckling strength is higher, repairing quality is good, and is suitable to site operation, repairs place of mating formation long for service life.This
The technical scheme that invention is provided, it is possible in order to make up repair materials, preparation and road used by prior art Bridge pave-load layer
The technology vacancy of face repairing construction.
Finally illustrating, above example is only in order to illustrate technical scheme and unrestricted, although with reference to the most real
Execute example the present invention has been described in detail, it will be understood by those within the art that, can be to the technical side of the present invention
Case is modified or equivalent, and without deviating from objective and the scope of technical solution of the present invention, it all should be contained in the present invention
Right in the middle of.
Claims (10)
1. repair the mending mortar mated formation for bridge pavement for one kind, it is characterised in that its ingredient groups is divided and included epoxy resin 12 ~ 20 weight portion, composite curing agent 5 ~ 10 weight portion, diluent 0.75 ~ 1.8 weight portion and 100 weight portions that gather materials；Wherein, epoxy resin uses E51 bisphenol A type epoxy resin；Composite curing agent is according to (3 ~ 4) by T31 type firming agent and 651 type firming agent: the mixing of 1 is compounding to be formed.
The mending mortar mated formation is repaired the most according to claim 1 for bridge pavement, it is characterized in that, the E51 bisphenol A type epoxy resin used need to meet following performance indications and require: epoxide number is 0.513 ~ 0.543mol/100g, when 25 DEG C, viscosity number is 10 ~ 16Pa s, hydrolyzable chlorine content is less than or equal to 0.02mol/100g, content of inorganic chlorine is less than or equal to 0.003mol/100g, and volatile matter total content is less than or equal to 0.5%.
The mending mortar mated formation is repaired the most according to claim 1 for bridge pavement, it is characterized in that, the T31 type firming agent that compounding composite curing agent is used need to meet following performance indications and require: amine number is 460 ~ 500mgkoH/g, and when 25 DEG C, viscosity number is 1.1 ~ 1.3Pa s；
The 651 type firming agent that compounding composite curing agent is used need to meet following performance indications and require: amine number is 300 ~ 320mgkoH/g, when 25 DEG C viscosity number reach 13Pa s or more than.
The mending mortar mated formation is repaired the most according to claim 1, it is characterised in that described diluent is diesel oil for bridge pavement.
The mending mortar mated formation is repaired the most according to claim 1 for bridge pavement, it is characterized in that, the described grain composition gathered materials requires: the grader retained percentage of 4 mesh standard sieves is 0%, the grader retained percentage of 8 mesh standard sieves is 18.93 ~ 38.72%, the grader retained percentage of 16 mesh standard sieves is 15.22 ~ 23.56%, the grader retained percentage of 30 mesh standard sieves is 12.09 ~ 14.23%, the grader retained percentage of 50 mesh standard sieves is 9.03 ~ 18.29%, the grader retained percentage of 100 mesh standard sieves is 5.56 ~ 17.47%, the grader retained percentage of 200 mesh standard sieves is 8.90 ~ 18.00%.
6. the preparation method repairing the mending mortar mated formation as claimed in claim 1 for bridge pavement, it is characterised in that comprise the steps:
1) according to dispensing component as claimed in claim 1, get out enough epoxy resin, composite curing agent, diluent and gather materials；
2) will gather materials stir in glue sand agitated kettle after standby；
3) by dispensing component, diluent was added to joining in glue bucket equipped with epoxy resin, and be stirred continuously until mix homogeneously with agitator, obtain epoxy resin diluent；
4) by dispensing component, composite curing agent was added to joining in glue bucket equipped with above-mentioned steps gained epoxy resin diluent, and be stirred continuously until mix homogeneously with agitator, obtain epoxide-resin glue；
5) by dispensing component, the epoxide-resin glue of step 4) gained is added to equipped with step 2) in the standby glue sand agitated kettle gathered materials of gained, start glue sand agitated kettle and be stirred continuously until mix homogeneously, i.e. obtain repairing, for bridge pavement, the mending mortar mated formation as claimed in claim 1.
7. a pavement patching pavement construction method, it is characterised in that use mending mortar road pavement breakage as claimed in claim 1 to carry out repairing and mat formation, specifically includes following steps:
A) road pavement breakage carries out cutting, cutting process, is formed and repair pavement groove at road surface breakage；
B) mending mortar as claimed in claim 1 is prepared according to preparation method as claimed in claim 6 at the construction field (site) standby, and according to the step 3) in preparation method as claimed in claim 6 and 4) additionally to prepare epoxide-resin glue standby；
C) at road surface breakage, the epoxide-resin glue of preparation in the sidewall of pavement groove and bottom surface brushing step b) is repaired；
D) in being coated with the repairing pavement groove brushing epoxide-resin glue, the mending mortar of preparation in step b) is successively poured, until filling and leading up repairing pavement groove in road surface；When pouring each layer of mending mortar, the one layer of mending mortar that paving need to be entered pave smooth after, with wooden tamper, mending mortar layer is plugged and pounded closely knit, after having plugged and pounded, strikes off unnecessary mending mortar floating with spatula；The thickness of each layer of mending mortar poured is less than 5cm；
E) repairing in pavement groove at road surface breakage successively pours after the operation of mending mortar completes, and stands, until after mending mortar solidification, pavement patching pavement construction i.e. completes.
Pavement patching pavement construction method the most according to claim 7, it is characterized in that, in described step d), when pouring each layer of mending mortar, the concrete operations mode plugged and pounded mending mortar layer with wooden tamper is as follows: for currently spread into a mending mortar layer, plug and pound to center from edge by the direction of spiral clockwise or counterclockwise, when plugging and pounding operation, tamper keeps vertical, and plug and pound density and determine, every 100cm at the tiling area repaired in pavement groove according to the mending mortar layer currently spread2The mending mortar layer of tiling area, uses tamper to carry out plugging and pounding the number of times of operation no less than 12 times；When using tamper to carry out plugging and pounding operation every time, if currently spread into mending mortar layer be the bottom, tamper should be inserted to repair pavement groove bottom surface, if currently spread into mending mortar layer be not the bottom, then tamper should be inserted to be absorbed in next adjacent mending mortar layer 20 ~ 30mm degree of depth；After having plugged and pounded, strike off unnecessary mending mortar floating with spatula.
Pavement patching pavement construction method the most according to claim 7, it is characterised in that total duration is constructed in the operation of described step d) need to be within 15 minutes.
Pavement patching pavement construction method the most according to claim 7, it is characterised in that in described step e), time of repose is 2 ~ 3 hours.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106760603A (en) * | 2016-12-27 | 2017-05-31 | 四川省三台县波特兰商品砼有限公司 | A kind of method for repairing and mending of concrete surface layer defect |
| CN109455980A (en) * | 2019-01-02 | 2019-03-12 | 广州市市政工程维修处 | Concrete road surface material for quickly repairing and its restorative procedure |
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| CN103966941A (en) * | 2014-04-10 | 2014-08-06 | 广东省建筑科学研究院 | Construction method for rapidly repairing expansion joint heightening leveling layer |
| CN103964747A (en) * | 2014-04-10 | 2014-08-06 | 广东省建筑科学研究院 | Weather-proof and quick-drying pavement damage repairing material and preparation method thereof |
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| CN102659369A (en) * | 2012-05-18 | 2012-09-12 | 山西省交通科学研究院 | Epoxy emulsion modified quick repair mortar for concrete roads and bridges and preparation method for mortar |
| CN103966941A (en) * | 2014-04-10 | 2014-08-06 | 广东省建筑科学研究院 | Construction method for rapidly repairing expansion joint heightening leveling layer |
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| CN105906232B (en) | 2018-10-30 |
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