CN109778657A - A kind of cement pavement quick maintenance method - Google Patents
A kind of cement pavement quick maintenance method Download PDFInfo
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- CN109778657A CN109778657A CN201910251331.5A CN201910251331A CN109778657A CN 109778657 A CN109778657 A CN 109778657A CN 201910251331 A CN201910251331 A CN 201910251331A CN 109778657 A CN109778657 A CN 109778657A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
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- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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Abstract
The present invention relates to technical field of buildings, disclose a kind of cement pavement quick maintenance method.The invention by successively carry out milling, scarfing cinder, scrub, moisten, pouring new cement slurry, pave new healant and plastic film health, consumptive material demand can not only be reduced and simplify engineering method step, the time required to health can also be greatly shortened, and then maintenance task can be rapidly completed, it realizes the purpose that quickly resumes traffic, significantly facilitates the trip and the movable development of national economy of people.In addition, used cement slurry and healant have many advantages, such as that self-leveling, intensity are high, it is good to form fast, freeze proof, impervious and wearability, it is convenient for practical promotion and application.
Description
Technical field
The invention belongs to technical field of buildings, and in particular to a kind of cement pavement quick maintenance method.
Background technique
Cement concrete pavement is the principal mode of current road, under the repeated action of ever-increasing traffic load
And under various other environment and the ringing of human factor, different degrees of destruction inevitably occurs, with dampening
It is continuously increased to cement concrete road surface active time, damaged degree is growing day by day, is mainly shown as disconnected plate, crack, undisguised, broken
Split with faulting of slab ends etc., for the lasting safer shipping for guaranteeing traffic, it is necessary to be repaired to damaged cement concrete pavement.Pass through
Relevant industries specification and literature are compared, it is strong in patching material requirement 24 hours of Cement Concrete Pavement Maintenance engineering
Degree must reach the 70% of concrete original Pavement Design intensity, i.e. compression strength must reach 20MPa, and flexural tensile strength must reach
3.5MPa (raw sheet design strength is 5MPa) or 3.15MPa (raw sheet design strength is 4.5MPa), and material is repaired when open to traffic
The intensity of material must reach the 100% of original ground design strength, while should have fast, the wear-resisting and durability of hardening good, lower shrinkage
The features such as microdilatancy.
In current " highway cement concrete pavement maintenance technology specification JTJ 073.1-2001 " (hereinafter referred " rule
Model ") in documented cement pavement repair step are as follows: (1) after milling, scarfing cinder and scrubbing, one layer of the old and new's faying face brush with
Lean concrete grout of the material for repairing with proportion；(2) the convolution cement concrete for at least 80mm thickness that paves, the convolution coagulating cement
Soil by mixed with additive cement admixture (i.e. material for repairing) and pitch thin layer thin pulp sealing material mixing form；(3) it sufficiently vibrates
And it strikes off；(4) it sprinkles water health at least 14 days, sprinkles water 3~4 times daily immediately.Thus for existing cement pavement method for maintaining,
The problems such as long the time required to that there are consumptive material demands is big for it, engineering method is complicated and health, it is unfavorable for that maintenance task and reality is rapidly completed
Now quickly resume traffic purpose, is further improved.
Summary of the invention
In order to solve, consumptive material demand present in existing cement pavement method for maintaining is big, engineering method is complicated and health is taken
Between it is long the problems such as, it is an object of that present invention to provide a kind of new cement pavement quick maintenance methods.
The technical scheme adopted by the invention is as follows:
A kind of cement pavement quick maintenance method, includes the following steps:
S101. milling: milling is carried out to road surface to be repaired, milling depth is between 20~25mm；
S102. scarfing cinder；
S103. it scrubs；
S104. keep road surface 4~6 hours wet；
S105. a layer thickness is poured between the cement slurry of 5~7mm and is shakeout, wherein the cement slurry is according to weight
Part meter, by 377~435 parts of portland cements, 547~623 parts of gradation river sands, 35~60 parts of mountain flours, 27~32 parts of silicon powders, 10.6
~12 parts of flyash, 0.1~2 part of calcium formate, 0.2~6 part of triisopropanolamine, 1.1~3 parts of α-sodium olefin sulfonates, 0.6~2 part
Polyvinyl alcohol, 1.4~2.5 parts of anhydrous calcium chlorides and suitable water mixing composition；
S106. a layer thickness that paves between 20~25mm healant and strike off, wherein the healant is according to parts by weight
Meter, by 320~450 parts of portland cements, 324~417 parts of gradation river sands, 170~260 parts of graded broken stones, 12.7~17 parts of silicon
Powder, 3.2~8 parts of flyash, 0.1~2 part of calcium formate, 0.2~7 part of triisopropanolamine, 1.2~2.4 parts of α-sodium olefin sulfonates,
0.4~1.2 part of polyvinyl alcohol, 1.2~2.4 parts of anhydrous calcium chlorides and suitable water mixing composition；
S107. using the laying health of plastic film mode 3 days；
S108. plastic film is removed.
Optimization, in the step S106, is struck off using floating rule and forbid to vibrate.
Optimization, further include having the following steps after the step S108:
S109. it uses the health of watering mode 4 days.
Optimization, in the cement slurry, the grain size specification of gradation river sand is between 0.15~0.3mm.
Optimization, in the cement slurry, mountain flour is basalt mountain flour and grain size specification is 0.075mm.
Optimization, in the healant, gradation river sand by weight, by 170~227 parts of grain size specifications between 1.18
The the secondth area grade of first area's gradation river sand, 130~150 parts of grain size specifications between 0.3~1.18mm between~4.75mm
Third area gradation river sand with river sand and 24~40 parts of grain size specifications between 0.15~0.3mm mixes composition.
Optimization, in the healant, graded broken stone is basaltic broken stone and grain size specification is between 5~12mm.
Optimization, in the cement slurry or the healant, the grain size specification of silicon powder is between 74~125um.
Optimization, in the cement slurry or the healant, the grain size specification of flyash is between 10~40um.
Optimization, in the cement slurry or the healant, portland cement is P.O.42.5 portland cement.
The invention has the benefit that
(1) the invention provides a kind of new cement pavement quick maintenance method, by successively carrying out milling, clear
Slag, scrub, moisten, pouring new cement slurry, pave new healant and plastic film health, can not only reduce consumptive material demand and
Simplify engineering method step, the time required to health can also be greatly shortened, and then maintenance task can be rapidly completed, realizes that fast quick-recovery is handed over
Logical purpose, significantly facilitates the trip and the movable development of national economy of people；
(2) cement slurry and healant used by have self-leveling, intensity height, molding fast, freeze proof, impervious and wear-resisting
Property it is good the advantages that, be convenient for practical promotion and application.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the flow diagram of cement pavement quick maintenance method provided by the invention.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the present invention is further elaborated.It should be noted that for this
The explanation of a little way of example is used to help understand the present invention, but and does not constitute a limitation of the invention.It is disclosed herein specific
Structure and function details is only used for description example embodiments of the present invention.However, this hair can be embodied with many alternative forms
It is bright, and be not construed as limiting the invention in embodiment set forth herein.
It will be appreciated that though term first, second etc. can be used herein to describe various units, these units are not answered
When being limited by these terms.These terms are only used to distinguish a unit and another unit.Such as it can be single by first
Member is referred to as second unit, and similarly second unit can be referred to as first unit, real without departing from example of the invention
Apply the range of example.
It should be appreciated that the terms "and/or", only a kind of incidence relation for describing affiliated partner, expression can be with
There are three kinds of relationships, for example, A and/or B, can indicate: individualism A, individualism B exist simultaneously tri- kinds of situations of A and B,
The terms "/and " are to describe another affiliated partner relationship, indicate may exist two kinds of relationships, can be with for example, A/ and B
Indicate: two kinds of situations of individualism A, individualism A and B, in addition, character "/" herein, typicallying represent forward-backward correlation object is
A kind of "or" relationship.
It should be appreciated that when by unit referred to as with another unit " connection ", " connected " or " coupling " when, it can with it is another
A unit is directly connected or couples or temporary location may exist.Relatively, it is referred to as with another unit " directly when by unit
It is connected " or when " direct-coupling ", temporary location is not present.It should explain in a similar manner for describing the relationship between unit
Other words (for example, " ... between " to " between directly existing ... ", " adjacent " is to " direct neighbor " etc.).
Terms used herein are only used for description specific embodiment, and are not intended to limitation example embodiments of the present invention.
As it is used herein, singular "a", "an" and "the" is intended to include plural form, unless context is explicitly indicated
Contrary.It should also be understood that term " includes ", " including ", "comprising", and/or " containing " are as used herein,
Specified stated feature, integer, step, operation, unit and/or component existence, and be not excluded for it is one or more its
His feature, quantity, step, operation, unit, component and/or their combination existence or increase.
It will be further noted that the function action occurred may be with the sequence of attached drawing appearance in some alternative embodiments
It is different.Such as it depends on substantially being executed concurrently in related function action, or sometimes can be with
Opposite sequence executes continuously show two figures.
Specific details is provided, in the following description in order to which example embodiment is understood completely.However ability
Domain those of ordinary skill is it is to be understood that implementation example embodiment without these specific details.Such as it can be
System is shown in block diagram, to avoid with unnecessary details come so that example is unclear.It in other embodiments, can not be with non-
Necessary details shows well-known process, structure and technology, to avoid making example embodiment unclear.
Embodiment one
As shown in Figure 1, the cement pavement quick maintenance method provided in this embodiment, including have the following steps.
S101. milling: milling is carried out to road surface to be repaired, milling depth is between 20~25mm.
In the step S101, can be used existing pavement milling machine to road surface to be repaired (occur disconnected plate, crack,
Undisguisedly, fragmentation and cement pavement the problems such as faulting of slab ends) carry out accurate milling.
S102. scarfing cinder.
In the step S102, it can be used existing road surface smoothing machine to just by the road surface progress scarfing cinder processing of milling.
S103. it scrubs.
In the step S103, giant can be used to rinse road surface.
S104. keep road surface 4~6 hours wet.
It is wet to refer to road surface moisture content between 12%~15% or road surface relative humidity exists in the step S104
Between 40%~60%.Judging Shi Keyong hand touch road surface, when there is the feeling obviously moistened, that is, can determine whether that road surface is in wet
Profit state.
S105. a layer thickness is poured between the cement slurry of 5~7mm and is shakeout, wherein the cement slurry is according to weight
Part meter, by 377~435 parts of portland cements (all Portland clinkers based on calcium silicates, 5% lime stone below or
Granulated blast-furnace slag, hydraulic cementing materials made of proper amount of gypsum is levigate, is referred to as portland cement, is also referred to collectively as in the world
Portland cement), (gradation is the distribution condition of particles at different levels of gathering materials, can be true by screen analysis test for 547~623 parts of gradations
It is fixed) river sand, 35~60 parts of mountain flours, 27~32 parts of silicon powders, (it is the catching from the flue gas after coal combustion to 10.6~12 parts of flyash
The fine ash got off, usually coal-burning power plant discharge primary solids waste), 0.1~2 part of calcium formate (also referred to as formic acid calcium, molecular formula
It is C2H204Ca, molecular weight 130, calcium formate in animal body through biochemical action it is free go out formic acid, significantly reduce stomach and intestine
In road pH value, play the effect for maintaining appropriate acid in enteron aisle), 0.2~6 part of triisopropanolamine, 1.1~3 parts of α-olefin sulfonic acids
Sodium, 0.6~2 part of polyvinyl alcohol, (it is anti-to be commonly used for desiccant, refrigerant, building to 1.4~2.5 parts of anhydrous calcium chlorides for also referred to as ice calcium
Freeze agent, road surface dust-collecting agent, antifogging agent, fabric fire agent, food preservative and for manufacturing calcium salt etc.) and suitable water mixing group
At.By using the cement slurry of aforementioned formula, lean concrete grout may replace, it is only necessary to brushing after suitable quantity of water mix or blade coating
5~7mm between new-to-old concrete interface, it is easy to operate to be easy to grasp, interfacial adhesion can be effectively increased, the repairing of its upper layer is thinned
The thickness and dosage of material, are effectively ensured the effect of maintenance engineering.
In the cement slurry, the mix dosage of water is preferably front dry type mixing material (i.e. by portland cement, gradation
River sand, mountain flour, silicon powder, flyash, calcium formate, triisopropanolamine, α-sodium olefin sulfonate, polyvinyl alcohol and anhydrous calcium chloride etc. are mixed
Dry materials made of conjunction) total weight 10~17%: in laboratory when shaping test piece, the best mix dosage of water is front dry type
The 12% of mixture total weight；When external-open exhibition field test out of office, stirred by using 45~57 revs/min of forced action type of turn up
Cylinder is mixed, the best mix dosage of water is the 14~15% of front dry type mixing material total weight, wherein the quality of water meets " specification "
In requirement to cement concrete mixing water.In addition, specifically, portland cement is preferably P.O.42.5 portland cement；
Third area gradation river sand of the gradation river sand preferable particle size specification between 0.15~0.3mm；Mountain flour preferable particle size specification is
The basalt mountain flour of 0.075mm；Superfine silica powder of the silicon powder preferable particle size specification between 74~125um；Flyash is preferably advised
Superfined flyash of the lattice grain size specification between 10~40um.
S106. a layer thickness that paves between 20~25mm healant and strike off, wherein the healant is according to parts by weight
Meter, (is referred to by all size by 320~450 parts of portland cements, 324~417 parts of gradation river sands, 170~260 parts of graded broken stones
The gather materials mixture of composition of size fractionated is called a grade distribution type and gathers materials when its gradation meets the regulation of technical specification), 12.7
~17 parts of silicon powders, 3.2~8 parts of flyash, 0.1~2 part of calcium formate, 0.2~7 part of triisopropanolamine, 1.2~2.4 parts of α-alkenyls
Sodium sulfonate, 0.4~1.2 part of polyvinyl alcohol, 1.2~2.4 parts of anhydrous calcium chlorides and suitable water mixing composition.
, it is preferable to use floating rule strikes off and forbids to vibrate in the step S106, because cement slurry and healant is total
Thickness only has 25~32mm, and layer structure is relatively thin, vibrates and easily causes material segregation.In the healant, the mix dosage of water is excellent
Front dry type mixing material is selected as (i.e. by portland cement, gradation river sand, graded broken stone, silicon powder, flyash, calcium formate, three isopropyls
The dry materials that hydramine, α-sodium olefin sulfonate, polyvinyl alcohol and anhydrous calcium chloride etc. mix) total weight 7~15%: in reality
When testing room shaping test piece, the best mix dosage of water is the 9% of front dry type mixing material total weight；External-open out of office opens up field test
When, by using 45~57 revs/min of turn up of forced action type a mixing bowl, the best mix dosage of water is front dry type mixing material
The 10~12% of total weight, wherein the quality of water meets the requirement in " specification " to cement concrete mixing water.In addition, tool
Body, portland cement is preferably P.O.42.5 portland cement；Gradation river sand is preferably by 170~227 parts by weight
First area gradation river sand of the grain size specification between 1.18~4.75mm, 130~150 parts of grain size specifications between 0.3~
The third area gradation river of second area's gradation river sand and 24~40 parts of grain size specifications between 0.15~0.3mm between 1.18mm
Sand mixing composition；Basaltic broken stone of the graded broken stone preferable particle size specification between 5~12mm；Silicon powder preferable particle size specification is situated between
Superfine silica powder between 74~125um；Superfined flyash of the preferred specification grain size specification of flyash between 10~40um.
The dry type that specimen coding is 2018-AZL-50 is repaired according to Heilongjiang Province architecture in cold area construction engineering test center
Examining report (reference standard: GB/T50082-2009, GB/ made by agent (i.e. packed 50 jin heavy of dry type mixing material)
T17671-1999), reference can be made to healant examining report table as shown in table 1 below:
1. healant examining report table of table
In above-mentioned table 1: early stage cracking resistance test specimen is square plate test specimen, is by having a size of 800mm*600mm*100mm and having 7
The steel mold of crack-induced device pours, and one group has 2 test specimens, using the arithmetic mean of instantaneous value in 2 test specimen area of cracks as
This group of test specimen is averaged the measured value of area of cracks；Resistance to compression and anti-folding test specimen are the cube that size is 150mm*150mm*150mm
Test specimen, one group has 3 test specimens, at each resistance to compression measuring point 2.According to above-mentioned table 1, by paving, healant can make as quick as thought
Repair pavement strength in 24 hours much be up to concrete road surface design strength 70% (i.e. compression strength be up to 50MPa with
On).
S107. using the laying health of plastic film mode 3 days.
In the step S107, due to being mixed with enough water in the cement slurry and the healant,
It can health without watering.
S108. plastic film is removed.
After the step S108 (i.e. health is completely after 3 days), it can resume traffic, while after being open to traffic and not influencing to hand over
In the case where going all, it can also include the following steps: that S109., hereafter just need not health again using the health of watering mode 4 days
?.
Be compared to existing cement pavement method for maintaining, it is provided in this embodiment and by preceding step S101~S108 and
Cement pavement quick maintenance method described in S109 has the advantages that (1) reduces consumptive material demand: new method only needs to spread out
Spread 5~7mm thickness cement slurry and 20~25mm thickness healant, far fewer than " specification " required by least need to be laid with 80mm after
Cement concrete；(2) simplify engineering method step: new method is not necessarily to the watering health link vibrated with early period；(3) it shortens feeding
The time required to raw: new method can make cement pavement resume traffic after health 3 days, and the watering health in later period also only needs 4, far
Less than must sprinkle water required by " specification " health 14 days；(4) cement slurry and healant used by have self-leveling, strong
Degree is high, forms the advantages that fast, freeze proof, impervious and wearability is good, is convenient for practical promotion and application.
To sum up, it using cement pavement quick maintenance method provided by the present embodiment, has the following technical effect that
(1) present embodiments provide a kind of new cement pavement quick maintenance method, by successively carry out milling, scarfing cinder,
Scrub, moisten, pouring new cement slurry, pave new healant and plastic film health, can not only reduce consumptive material demand and letter
The time required to can also greatly shortening health, and then maintenance task can be rapidly completed in chemical method step, and realization quickly resumes traffic
Purpose significantly facilitates the trip and the movable development of national economy of people；
(2) cement slurry and healant used by have self-leveling, intensity height, molding fast, freeze proof, impervious and wear-resisting
Property it is good the advantages that, be convenient for practical promotion and application.
Embodiment two
Present embodiments provide a kind of matching for further preferred amounts of components for cement slurry described in embodiment one
Side, it may be assumed that in parts by weight, by 383~428 parts of portland cements, 556~610 parts of gradation river sands, 38~56 parts of mountain flours,
27.5~31 parts of silicon powders, 10.9~11.8 parts of flyash, 0.3~1.6 part of calcium formate, 0.8~5.0 part of triisopropanolamine, 1.3~
2.7 parts of α-sodium olefin sulfonates, 0.9~1.9 part of polyvinyl alcohol, 1.5~2.4 parts of anhydrous calcium chlorides and suitable water mixing composition.
The technical effect of the present embodiment can be obtained based on the beneficial effect direct derivation of embodiment one, no longer superfluous in this
It states.
Embodiment three
Present embodiments provide a kind of matching for further preferred amounts of components for cement slurry described in embodiment two
Side, it may be assumed that in parts by weight, by 394~420 parts of portland cements, 570~598 parts of gradation river sands, 45~52 parts of mountain flours, 28
~31 parts of silicon powders, 11~11.5 parts of flyash, 0.4~1.2 part of calcium formate, 1.8~4.4 parts of triisopropanolamines, 1.6~2.5 parts
α-sodium olefin sulfonate, 1.0~1.7 parts of polyvinyl alcohol, 1.7~2.3 parts of anhydrous calcium chlorides and suitable water mixing composition.
The technical effect of the present embodiment can be obtained based on the beneficial effect direct derivation of embodiment one, no longer superfluous in this
It states.
Example IV
Present embodiments provide a kind of matching for further preferred amounts of components for cement slurry described in embodiment three
Side, it may be assumed that in parts by weight, by 401~412 parts of portland cements, 578~592 parts of gradation river sands, 47~50 parts of mountain flours,
28.5~30 parts of silicon powders, 11.1~11.4 parts of flyash, 0.5~0.7 part of calcium formate, 2.9~3.3 parts of triisopropanolamines, 1.8~
2.4 parts of α-sodium olefin sulfonates, 1.2~1.5 parts of polyvinyl alcohol, 1.9~2.2 parts of anhydrous calcium chlorides and suitable water mixing composition.
The technical effect of the present embodiment can be obtained based on the beneficial effect direct derivation of embodiment one, no longer superfluous in this
It states.
Embodiment five
Present embodiments provide a kind of matching for further preferred amounts of components for cement slurry described in example IV
Side, it may be assumed that in parts by weight, by 406 parts of portland cements, 585 parts of gradation river sands, 48 parts of mountain flours, 29.5 parts of silicon powders, 11.3 parts
Flyash, 0.6 part of calcium formate, 3.1 parts of triisopropanolamines, 2.1 parts of α-sodium olefin sulfonates, 1.3 parts of polyvinyl alcohol, 2.0 parts it is anhydrous
Calcium chloride and suitable water mixing composition.
The technical effect of the present embodiment can be obtained based on the beneficial effect direct derivation of embodiment one, no longer superfluous in this
It states.
Embodiment six
A kind of formula of further preferred amounts of components for healant described in embodiment one is present embodiments provided,
I.e.: in parts by weight, by 354~423 parts of portland cements, 348~402 parts of gradation river sands, 207~238 parts of graded broken stones,
13.5~16.2 parts of silicon powders, 4.5~7.2 parts of flyash, 0.3~1.8 part of calcium formate, 0.6~6.2 part of triisopropanolamine, 1.3~
2.2 parts of α-sodium olefin sulfonates, 0.5~1.0 part of polyvinyl alcohol, 1.4~2.1 parts of anhydrous calcium chlorides and suitable water mixing composition.
The technical effect of the present embodiment can be obtained based on the beneficial effect direct derivation of embodiment one, no longer superfluous in this
It states.
Embodiment seven
A kind of formula of further preferred amounts of components for healant described in embodiment six is present embodiments provided,
I.e.: in parts by weight, by 378~405 parts of portland cements, 362~394 parts of gradation river sands, 210~232 parts of graded broken stones,
13.9~15.4 parts of silicon powders, 5.3~6.2 parts of flyash, 0.5~1.6 part of calcium formate, 0.3~5.1 part of triisopropanolamine, 1.5~
2.0 parts of α-sodium olefin sulfonates, 0.6~0.9 part of polyvinyl alcohol, 1.5~1.9 parts of anhydrous calcium chlorides and suitable water mixing composition.
The technical effect of the present embodiment can be obtained based on the beneficial effect direct derivation of embodiment one, no longer superfluous in this
It states.
Embodiment eight
A kind of formula of further preferred amounts of components for healant described in embodiment seven is present embodiments provided,
I.e.: in parts by weight, by 380~392 parts of portland cements, 366~378 parts of gradation river sands, 212~224 parts of graded broken stones,
14.2~15.1 parts of silicon powders, 5.5~5.9 parts of flyash, 0.9~1.3 part of calcium formate, 3.3~4.0 parts of triisopropanolamines, 1.7~
1.9 parts of α-sodium olefin sulfonates, 0.7~0.9 part of polyvinyl alcohol, 1.7~1.9 parts of anhydrous calcium chlorides and suitable water mixing composition.
The technical effect of the present embodiment can be obtained based on the beneficial effect direct derivation of embodiment one, no longer superfluous in this
It states.
Embodiment nine
A kind of formula of further preferred amounts of components for healant described in embodiment eight is present embodiments provided,
I.e.: in parts by weight, by 385 parts of portland cements, 370 parts of gradation river sands, 215 parts of graded broken stones, 14.9 parts of silicon powders, 5.6
Part flyash, 1.1 parts of calcium formates, 3.6 parts of triisopropanolamines, 1.8 parts of α-sodium olefin sulfonates, 0.8 part of polyvinyl alcohol, 1.8 parts of nothings
Water calcium chloride and suitable water mixing composition.
The technical effect of the present embodiment can be obtained based on the beneficial effect direct derivation of embodiment one, no longer superfluous in this
It states.
The present invention is not limited to above-mentioned optional embodiment, anyone can show that other are each under the inspiration of the present invention
The product of kind form.Above-mentioned specific embodiment should not be understood the limitation of pairs of protection scope of the present invention, protection of the invention
Range should be subject to be defined in claims, and specification can be used for interpreting the claims.
Claims (10)
1. a kind of cement pavement quick maintenance method, which comprises the steps of:
S101. milling: milling is carried out to road surface to be repaired, milling depth is between 20~25mm；
S102. scarfing cinder；
S103. it scrubs；
S104. keep road surface 4~6 hours wet；
S105. a layer thickness is poured between the cement slurry of 5~7mm and is shakeout, wherein the cement slurry is according to parts by weight
Meter, by 377~435 parts of portland cements, 547~623 parts of gradation river sands, 35~60 parts of mountain flours, 27~32 parts of silicon powders, 10.6~
12 parts of flyash, 0.1~2 part of calcium formate, 0.2~6 part of triisopropanolamine, 1.1~3 parts of α-sodium olefin sulfonates, 0.6~2 part it is poly-
Vinyl alcohol, 1.4~2.5 parts of anhydrous calcium chlorides and suitable water mixing composition；
S106. a layer thickness that paves between 20~25mm healant and strike off, wherein the healant in parts by weight,
By 320~450 parts of portland cements, 324~417 parts of gradation river sands, 170~260 parts of graded broken stones, 12.7~17 parts of silicon powders,
3.2~8 parts of flyash, 0.1~2 part of calcium formate, 0.2~7 part of triisopropanolamine, 1.2~2.4 parts of α-sodium olefin sulfonates, 0.4~
1.2 parts of polyvinyl alcohol, 1.2~2.4 parts of anhydrous calcium chlorides and suitable water mixing composition；
S107. using the laying health of plastic film mode 3 days；
S108. plastic film is removed.
2. a kind of cement pavement quick maintenance method as described in claim 1, which is characterized in that in the step S106,
It is struck off using floating rule and forbids to vibrate.
3. a kind of cement pavement quick maintenance method as described in claim 1, which is characterized in that after the step S108
Further include having the following steps:
S109. it uses the health of watering mode 4 days.
4. a kind of cement pavement quick maintenance method as described in claim 1, which is characterized in that in the cement slurry,
The grain size specification of gradation river sand is between 0.15~0.3mm.
5. a kind of cement pavement quick maintenance method as described in claim 1, which is characterized in that in the cement slurry,
Mountain flour is basalt mountain flour and grain size specification is 0.075mm.
6. a kind of cement pavement quick maintenance method as described in claim 1, which is characterized in that in the healant, grade
By weight with river sand, first area's gradation river sand by 170~227 parts of grain size specifications between 1.18~4.75mm, 130
Second area gradation river sand and 24~40 part grain size specifications of~150 parts of grain size specifications between 0.3~1.18mm are between 0.15
Third area gradation river sand between~0.3mm mixes composition.
7. a kind of cement pavement quick maintenance method as described in claim 1, which is characterized in that in the healant, grade
It is basaltic broken stone and grain size specification between 5~12mm with rubble.
8. a kind of cement pavement quick maintenance method as described in claim 1, which is characterized in that in the cement slurry or institute
It states in healant, the grain size specification of silicon powder is between 74~125um.
9. a kind of cement pavement quick maintenance method as described in claim 1, which is characterized in that in the cement slurry or institute
It states in healant, the grain size specification of flyash is between 10~40um.
10. a kind of cement pavement quick maintenance method as described in claim 1, which is characterized in that in the cement slurry or
In the healant, portland cement is P.O.42.5 portland cement.
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