CN109400075A - A kind of high additive cement stabilized base course building waste mixture and its construction method - Google Patents
A kind of high additive cement stabilized base course building waste mixture and its construction method Download PDFInfo
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- CN109400075A CN109400075A CN201811594051.6A CN201811594051A CN109400075A CN 109400075 A CN109400075 A CN 109400075A CN 201811594051 A CN201811594051 A CN 201811594051A CN 109400075 A CN109400075 A CN 109400075A
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/10—Coherent pavings made in situ made of road-metal and binders of road-metal and cement or like binders
- E01C7/14—Concrete paving
- E01C7/142—Mixtures or their components, e.g. aggregate
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/10—Coherent pavings made in situ made of road-metal and binders of road-metal and cement or like binders
- E01C7/14—Concrete paving
- E01C7/145—Sliding coverings, underlayers or intermediate layers ; Isolating or separating intermediate layers; Transmission of shearing force in horizontal intermediate planes, e.g. by protrusions, by inlays
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of high additive cement stabilized base course building waste mixtures, raw material including following mass fraction: partial size is more than or equal to 20mm and is less than the natural aggregate particle 15%~25% of 30mm, partial size is more than or equal to 10mm and is less than the natural aggregate particle 8%~18% of 20mm, partial size is more than or equal to 5mm and is less than the building waste particle 35%~45% of 10mm, partial size is less than the building waste particle matter 20%~30% and 42.5# ordinary portland cement 3.5%~4.5% of 5mm, also disclose the construction method that base is done using the mixture: after examining to raw material property；Building waste mix-design is carried out again；Then paving, roll, handling between seam and each base for base is carried out after being mixed and stirred and transported, and finally carries out health；Under the premise of meeting code requirement, volume of the building waste in sub-surface is increased to 50% or more, saves construction cost, reduces project cost；It solves the problems, such as the processing of building waste, realizes refuse reclamation, reduce the exploitation dynamics of building stones, protect environment.
Description
Technical field
The invention belongs to road base layer and technical field of construction, and in particular to a kind of high additive cement stabilized base course building
Rubbish mixture and its construction method.
Background technique
With the development of urban construction, the reprocessing of old building, demolition work are increasing, and the yield of building waste is fast
Speed increases, and China at least generates 50,000,000 tons of building wastes every year according to statistics.The generation of building waste brings a large amount of dust, pollution
Environment, while a large amount of soils are occupied, seriously affect the healthy living of resident.The processing mode of traditional architecture rubbish is predominantly concentrated
It buries or stacks, waste a large amount of human and material resources, can not solve the problems, such as the processing of building waste at all.Recently as environmentally friendly ground
The raising of position, increasing of the country to blue mountains and green waters protection, building waste gradually substitute building stones and are used roadbed filling, ground
Backfill, side slope protection, road base layer etc., building waste are used roadbed filling, ground backfill, side slope protection etc. skill
Art relative maturity, building stones substitution rate can reach 100%.However substitution rate highest of the building waste in base only reaches 30%,
And still planless construction method, can not effectively apply building waste in road base layer.
Summary of the invention
In order to solve problems of the prior art, the present invention discloses a kind of high additive cement stabilized base course building
Under the premise of meeting code requirement, volume of the building waste in sub-surface is improved for rubbish mixture and its construction method
To 50% or more, construction cost is saved, reduces project cost, realizes building waste waste utilization in sub-surface.
To achieve the goals above, the technical solution adopted by the present invention is that, a kind of high additive cement stabilized base course building
Rubbish mixture, the raw material including following mass fraction: partial size is more than or equal to 20mm and is less than the natural aggregate particle of 30mm
15%~25%, partial size is more than or equal to 10mm and natural aggregate particle 8%~18%, partial size less than 20mm are more than or equal to 5mm
And building waste particle matter 20%~30% less than the building waste particle 35%~45% of 10mm, partial size less than 5mm and
42.5# ordinary portland cement 3.5%~4.5%.
It further include the natural aggregate particle that partial size of the mass fraction less than 10% is less than 5mm.
Optionally, high additive cement stabilized base course carries out grade using the raw material of following mass fraction with building waste mixture
With obtaining: partial size is more than or equal to 20mm and natural aggregate 20%, partial size less than 30mm are more than or equal to 10mm and less than 20mm's
Natural aggregate 13%, partial size are more than or equal to 5mm and the building of building waste particle 42% and partial size less than 5mm less than 10mm
Granulated garbage 25%.
Using the construction method of the base of building waste mixture, which comprises the following steps:
Step 1, raw material property is examined；
Step 2, high additive cement stabilizing building waste mix-design；
Step 3, high additive cement stabilizing building waste mixes and stirs；
Step 4, the transport of high additive cement stabilizing building waste；
Step 5, high additive cement stabilizing building waste paving and rolls；
Step 6, the joint treatment of high additive cement stabilizing building waste；
Step 7, high additive cement stabilizing building waste interlayer management and health.
In step 1, the ginseng of the building waste with reference to described in " highway engineering gather materials testing regulations " JTG E42-2005 and table 1
Number index request, respectively to the particle composition of natural aggregate and building waste, apparent density, elongated particles, crush values, coagulation
Soil block content, the sand equivalent of fine aggregate and 0.075mm or less plasticity index index are detected；
The requirement of 1 building waste parameter index of table
Natural aggregate indices should meet code requirement, and building waste indices should meet requirement described in table 1.
After gradation meets code requirement in step 2, compaction test, 7d unconfined compression strength test, antiscour examination are carried out
It tests and cracking resistance is tested.
It is mixed and stirred in step 3 using plant mixing method, it is aqueous when the moisture content during mixing and stirring is higher than Indoor Impaction Test
Rate 1%~2%.
In step 5, watering processing is carried out to road bed before paving, coefficient of loose laying is 1~1.5；It is first bis- with 10t~15t
Steel wheel wheel press full width rolls 1~2 time, and rolling speed is 1.5km/h~1.7km/h；Single-drum road roller and rubber tire pressure are used again
Road machine carries out multiple pressure, and single-drum road roller exciting force is not more than 30t, rolls 3~5 times, rolling speed 2.2km/h；Then it uses
20~30t pneumatic-tired rollers are rubbed 3~5 times, rolling speed 2.2km/h；The bis- steel wheel pinch rollers of 10~15t are finally selected to receive face quiet
Pressure 1~2 time；Compactness is detected in roller compaction process in time, when compactness is unsatisfactory for code requirement, increases the stone roller of pneumatic-tired rollers
Press pass.
When using two width to pave in paving process in step 6, number of rolling is increased at longitudinal seam；There are longitudinal seams
When, longitudinal seam vertical connection.
No-sundries are cleaned up between base and roadbed, and are sprinkled water before base layer construction, and road bed is made to infiltrate nothing
Ponding；In step 7, health age is no less than 7d, closure construction section during health.
Compared with prior art, the present invention at least has the advantages that meet code requirement under the premise of, will build
Volume of the rubbish in sub-surface is increased to 50% or more, saves construction cost, reduces project cost；Solve building waste
Processing problem realizes refuse reclamation, reduces the exploitation dynamics of building stones, protects environment；High additive cement provided by the invention is steady
Determine the preparation and its construction method of building waste mixture, provides effective technological guidance for Practical Project.
Detailed description of the invention
Fig. 1 is the base mixture grading curve of the embodiment of the present invention 1.
Specific embodiment
The content of present invention is described further below with reference to example:
A kind of high additive cement stabilized base course building waste mixture, the raw material including following mass fraction: partial size is big
It is more than or equal to 10mm and natural less than 20mm in being equal to 20mm and being less than the natural aggregate particle 15%~25% of 30mm, partial size
Aggregate particle 8%~18%, partial size are more than or equal to 5mm and building waste particle 35%~45%, partial size less than 10mm are less than
The building waste particle matter 20%~30% and 42.5# ordinary portland cement 3.5%~4.5% of 5mm.
It further include the natural aggregate particle 0~10% that mass fraction is less than 5mm for partial size.
Its mixture carries out gradation using the raw material of following mass fraction and obtains: partial size is more than or equal to 20mm and is less than 30mm
Natural aggregate 20%, partial size is more than or equal to 10mm and is more than or equal to 5mm less than the natural aggregate 13% of 20mm, partial size and is less than
The building waste particle 42% and partial size of 10mm is less than the building waste particle 25% of 5mm.
In the present invention, it is D that partial size, which is more than or equal to 20mm and the partial size of the natural aggregate particle less than 30mm,1, partial size is greater than
It is D equal to the partial size of 10mm and the natural aggregate particle less than 20mm2, the partial size of natural aggregate particle of the partial size less than 5mm be
D3；It is d that partial size, which is more than or equal to 5mm and the partial size of the building waste particle less than 10mm,1, building waste particle of the partial size less than 5mm
Partial size be d2。
Embodiment 1
Using the construction method of the base of building waste mixture, comprising the following steps:
Step 1, raw material property is examined；With reference to institute in " highway engineering gather materials testing regulations " JTG E42-2005 and table 1
Building waste parameter index requirement is stated, the particle composition of natural aggregate and building waste, apparent density, gill shape are contained respectively
Amount, crush values, concrete block content, the sand equivalent of fine aggregate and 0.075mm or less plasticity index index are detected；
Natural aggregate indices should meet code requirement, and building waste indices should meet requirement described in table 1.
Step 2, high additive cement stabilizing building waste mix-design after gradation meets code requirement, carries out hitting real examination
It tests, the test of 7d unconfined compression strength test, antiscour and cracking resistance are tested.
With reference to " highway engineering gather materials testing regulations " JTG E42-2005, gather materials two kinds and carry out sieve test, determines each
Aggregate particle forms situation, and natural aggregate is divided into and is more than or equal to 5mm less than 5mm, partial size and is greater than less than 10mm, partial size etc.
In 10mm and it is less than 20mm, partial size is more than or equal to 20mm and is less than the gear of 30mm tetra-, building waste is divided into partial size less than 5mm, partial size
More than or equal to 5mm and it is less than 10mm, partial size more than or equal to 10mm and is less than 30mm third gear.
Step 3, high additive cement stabilizing building waste mixes and stirs, and is mixed and stirred using plant mixing method, containing during mixing and stirring
Water rate is higher than the moisture content 1%~2% when Indoor Impaction Test.
Step 4, the transport of high additive cement stabilizing building waste；It paves ability according to the production capacity of mix factory, scene,
And actual conditions are combined, mixture is stacked using triangle disposition, and effectively avoids moisture using moist geotextiles covering on surface
It is lost.
Step 5, high additive cement stabilizing building waste paving and rolling, and carries out at watering to road bed before paving
Reason, coefficient of loose laying are 1~1.5；It is first rolled 1~2 time with the bis- steel wheel wheel press full widths of 10t~15t, rolling speed 1.5km/h
~1.7km/h；Multiple pressure is carried out with single-drum road roller and pneumatic-tired rollers again, single-drum road roller exciting force is not more than 30t, grinds
Pressure 3~5 times, rolling speed 2.2km/h；Then it is rubbed 3~5 times with 20~30t pneumatic-tired rollers, rolling speed 2.2km/
h；The bis- steel wheel pinch rollers of 10~15t are finally selected to receive face static pressure 1~2 time；Compactness is detected in roller compaction process in time, when compactness not
When meeting code requirement, the number of rolling of pneumatic-tired rollers is increased；
Step 6, the joint treatment of high additive cement stabilizing building waste；It is longitudinal when being paved in paving process using two width
Seam crossing increases number of rolling；There are when longitudinal seam, longitudinal seam vertical connection；
Step 7, high additive cement stabilizing building waste interlayer management and health；It cleans up between base and roadbed without miscellaneous
Object, and sprinkle water before base layer construction, make road bed infiltration without ponding；In step 7, health age is no less than 7d, health
Period closure construction section.
It is matched using base mixture of the present invention and carries out Class I highway construction, specifically includes the following steps:
Step 1, raw material property is examined
Construction refuse regenerated to gather materials by the offer of Shaanxi Jian Xin pro-environment group Co., Ltd, natural aggregate selects limestone, breaks
Broken mode is jaw crushing.With reference to " highway engineering gather materials testing regulations " JTG E42-2005 respectively to natural aggregate and building
The indices of rubbish are detected, and the results are shown in Table 2.
Table 2 gathers materials performance indexes
Since construction refuse regenerated 0.075mm or less plasticity index of gathering materials is more than permissible value, therefore first regenerated aggregate is carefully collected
Material, which is placed on sieve shaker, to be vibrated 4 minutes, reduces 0.075mm content below, then carry out gradation design, construction refuse regenerated to gather materials
Building waste particle i.e. of the present invention.
Step 2, high additive cement stabilizing building waste mix-design
With reference to each aggregate grading recommended range, chooses partial size and be more than or equal to 20mm and be less than natural aggregate, the partial size of 30mm
Natural aggregate, partial size more than or equal to 10mm and less than 20mm are more than or equal to 5mm and are less than the building waste and partial size of 10mm
Four backgauge of building waste less than 5mm carries out formate gradation composition design, and each shelves aggregate quality is than as shown in table 3, formate gradation composition curve
As shown in Figure 1.Cement mixing content is 4%, carries out compaction test, 7d unconfined compression strength test, antiscour to mixture and tests
It is tested with cracking resistance, test result is as shown in table 4.
Each shelves material mass ratio of 3 cement stabilizing building waste of table
4 cement stabilizing building waste experimental performance of table
Step 3, high additive cement stabilizing building waste mixes and stirs
The cracking performance of aggregate stabilized by cement mix factory at 5 kilometers of distance construction scene is selected to be mixed and stirred, mix factory indices are full
Sufficient code requirement.During mixing and stirring, according to compaction test results, practical amount of water is 10.8%.
Step 4, the transport of high additive cement stabilizing building waste
It paves ability according to the production capacity of mix factory, scene, and combines actual conditions, select the self-unloading of 5 load-carrying 5t
Vehicle, mixture are stacked using triangle disposition, and effectively avoid water loss using moist geotextiles covering on surface.
Step 5, high additive cement stabilizing building waste paving and rolls
Road bed is cleaned before paving, and processing of sprinkling water, cement treated material are tested through different loose laying depths
(it is required that thickness ensures 18cm after ensuring to be compacted), it is ultimately determined to loose laying depth 22cm, compacted thickness 18cm, coefficient of loose laying k=
1.22.In paving process, ABG8620 type paver is selected, is paved form using full width.
Paving 50 meters or so can be rolled, and the selection bis- steel wheel wheel press full widths of 13t first roll 1 time, rolling speed
For 1.5km/h~1.7km/h；Secondly single-drum road roller and pneumatic-tired rollers is selected to carry out multiple pressure, single-drum road roller exciting
Power 22t is rolled 4 times, and rolling speed 2.2km/h, 30t pneumatic-tired rollers are rubbed 4 times, rolling speed 2.2km/h；Finally select
It is received face static pressure 2 times with the bis- steel wheel pinch rollers of 13t；Detection compactness is 98.4% after the completion of rolling, and meets code requirement；
Step 6, the joint treatment of high additive cement stabilizing building waste
The making transverse joint of high additive cement stabilizing building waste should use vertical carvel joint: the processing of transverse joint
It can refer to " highway road surface construction technology detailed rules and regulations " JTGT F20-2015.
It should be avoided in paving process and longitudinal seam occur, when paving using two width, number of rolling should be increased at longitudinal seam.
There are when longitudinal seam, longitudinal seam answers vertical connection, and mitered or other modes is forbidden to connect.
Step 7, high additive cement stabilizing building waste interlayer management, health and traffic control
Between base and roadbed, the mode of hand sweeping is selected, and sprinkle water before base layer construction；Base and underlayment
Between 2% cement grout of spread；Paving spills glutinous layer oil between base and surface layer.
It selects the mode of geotextiles covering to carry out health after the completion of construction, close traffic should be carried out during health, except watering
Forbid other vehicle pass-throughs outside vehicle and small-sized commuting vehicle.After health 7d, core boring sampling simultaneously surveys its intensity and pavement deflection value.Through
Detection, core sample intensity are 6.82MPa, deflection value 0.18mm, meet code requirement, construction quality is qualified.
Embodiment 2
Step 1 is identical as example 1.
Step 2, high additive cement stabilizing building waste mix-design
Respectively gather materials and be divided into 5 grades, chooses natural aggregate, partial size of the partial size more than or equal to 20mm and less than 30mm and be more than or equal to
10mm and natural aggregate, partial size less than the natural aggregate of 20mm, partial size less than 5mm is more than or equal to 5mm and building less than 10mm
Five backgauge of building waste of building refuse and partial size less than 5mm carries out formate gradation composition design, each shelves aggregate quality such as 5 institute of table
Show.Cement mixing content is 3.5%, carries out compaction test, 7d unconfined compression strength test, antiscour test and cracking resistance to mixture
Performance test, test result are as shown in table 6.
Each shelves material mass ratio of 5 cement stabilizing building waste of table
6 cement stabilizing building waste experimental performance of table
Step 3, high additive cement stabilizing building waste mixes and stirs
Select the mix factory of example 1.During mixing and stirring, according to compaction test results, practical amount of water is 9.3%.
Step 4~step 7 is identical as example 1.
It selects the mode of geotextiles covering to carry out health after the completion of construction, close traffic should be carried out during health, except watering
Forbid other vehicle pass-throughs outside vehicle and small-sized commuting vehicle.After health 7d, core boring sampling simultaneously surveys its intensity and pavement deflection value.Through
Detection, core sample intensity are 6.35MPa, deflection value 0.21mm, meet code requirement, construction quality is qualified.
Embodiment 3:
Step 1 is identical as example 1.
Step 2, high additive cement stabilizing building waste mix-design
It is divided into 5 grades for respectively gathering materials；Natural aggregate, partial size of the partial size more than or equal to 20mm and less than 30mm is chosen to be more than or equal to
10mm and it is more than or equal to 5mm less than the natural aggregate of 20mm, partial size and building waste less than 10mm and partial size are less than 5mm's
Four backgauge of building waste carries out formate gradation composition design, and each shelves aggregate quality is than as shown in table 7.Cement mixing content is 4%, to mixture
It is as shown in table 8 to carry out compaction test, 7d unconfined compression strength test, antiscour test and cracking resistance test, test result.
Each shelves material mass ratio of 7 cement stabilizing building waste of table
8 cement stabilizing building waste experimental performance of table
Step 3, high additive cement stabilizing building waste mixes and stirs
The mix factory for selecting example 1, during mixing and stirring, according to compaction test results, practical amount of water is 10.4%.
Step 4~step 7 is identical as example 1.
It selects the mode of geotextiles covering to carry out health after the completion of construction, close traffic should be carried out during health, except watering
Forbid other vehicle pass-throughs outside vehicle and small-sized commuting vehicle.After health 7d, core boring sampling simultaneously surveys its intensity and pavement deflection value.Through
Detection, core sample intensity are 6.64MPa, deflection value 0.25mm, meet code requirement, construction quality is qualified.
Embodiment 4:
Step 1 is identical as example 1.
Step 2, high additive cement stabilizing building waste mix-design
It is divided into 5 grades for respectively gathering materials；Natural aggregate, partial size of the partial size more than or equal to 20mm and less than 30mm is chosen to be more than or equal to
10mm and natural aggregate, partial size less than the natural aggregate of 20mm, partial size less than 5mm is more than or equal to 5mm and building less than 10mm
Five backgauge of building waste of building refuse and partial size less than 5mm carries out formate gradation composition design, each shelves aggregate quality such as 9 institute of table
Show.Cement mixing content is 4%, carries out compaction test, 7d unconfined compression strength test, antiscour test and crack resistance to mixture
It can test, test result is as shown in table 10.
Each shelves material mass ratio of 9 cement stabilizing building waste of table
10 cement stabilizing building waste experimental performance of table
Step 3, high additive cement stabilizing building waste mixes and stirs
Select the mix factory of example 1.During mixing and stirring, according to compaction test results, practical amount of water is 11.5%.
Step 4~step 7 is identical as example 1.
It selects the mode of geotextiles covering to carry out health after the completion of construction, close traffic should be carried out during health, except watering
Forbid other vehicle pass-throughs outside vehicle and small-sized commuting vehicle.After health 7d, core boring sampling simultaneously surveys its intensity and pavement deflection value.Through
Detection, core sample intensity are 6.21MPa, deflection value 0.25mm, meet code requirement, construction quality is qualified.
Claims (10)
1. a kind of high additive cement stabilized base course building waste mixture, which is characterized in that the original including following mass fraction
Material: partial size is more than or equal to 20mm and natural aggregate particle 15%~25%, partial size less than 30mm are more than or equal to 10mm and are less than
The natural aggregate particle 8%~18% of 20mm, partial size be more than or equal to 5mm and building waste particle 35% less than 10mm~
45%, partial size less than 5mm building waste particle matter 20%~30% and 42.5# ordinary portland cement 3.5%~
4.5%.
2. high additive cement stabilized base course building waste mixture according to claim 1, which is characterized in that further include
Partial size of the mass fraction less than 10% is less than the natural aggregate particle of 5mm.
3. high additive cement stabilized base course building waste mixture according to claim 1, which is characterized in that it is mixed
Material carries out gradation using the raw material of following mass fraction and obtains: partial size is more than or equal to 20mm and is less than the natural aggregate of 30mm
20%, partial size is more than or equal to 10mm and natural aggregate 13%, partial size less than 20mm are more than or equal to 5mm and are less than the building of 10mm
Granulated garbage 42% and partial size are less than the building waste particle 25% of 5mm.
4. using the construction method of any one of the claims 1 to 3 base of the building waste mixture, which is characterized in that packet
Include following steps:
Step 1, raw material property is examined；
Step 2, high additive cement stabilizing building waste mix-design；
Step 3, high additive cement stabilizing building waste mixes and stirs；
Step 4, the transport of high additive cement stabilizing building waste；
Step 5, high additive cement stabilizing building waste paving and rolls；
Step 6, the joint treatment of high additive cement stabilizing building waste；
Step 7, high additive cement stabilizing building waste interlayer management and health.
5. the construction method of the base of high additive cement stabilizing building waste mixture according to claim 4, feature
It is, in step 1, the building waste parameter with reference to described in " highway engineering gather materials testing regulations " JTG E42-2005 and table 1 refers to
Mark requires, respectively to the particle composition of natural aggregate and building waste, apparent density, elongated particles, crush values, concrete block
Content, the sand equivalent of fine aggregate and 0.075mm or less plasticity index index are detected；
The requirement of 1 building waste parameter index of table
Natural aggregate indices should meet code requirement, and building waste indices should meet requirement described in table 1.
6. the construction method of the base of high additive cement stabilizing building waste mixture according to claim 4, feature
Be, after gradation meets code requirement in step 2, carry out compaction test, 7d unconfined compression strength test, antiscour test with
And cracking resistance test.
7. the construction method of the base of high additive cement stabilizing building waste mixture according to claim 4, feature
It is, mixed and stirred in step 3 using plant mixing method, the moisture content during mixing and stirring is higher than moisture content when Indoor Impaction Test
1%~2%.
8. the construction method of the base of high additive cement stabilizing building waste mixture according to claim 4, feature
It is, in step 5, watering processing is carried out to road bed before paving, coefficient of loose laying is 1~1.5；First use the bis- steel wheels of 10t~15t
Wheel press full width rolls 1~2 time, and rolling speed is 1.5km/h~1.7km/h；Single-drum road roller and pneumatic-tired rollers are used again
Multiple pressure is carried out, single-drum road roller exciting force is not more than 30t, rolls 3~5 times, rolling speed 2.2km/h；Then with 20~
30t pneumatic-tired rollers are rubbed 3~5 times, rolling speed 2.2km/h；The bis- steel wheel pinch rollers of 10~15t are finally selected to receive face static pressure 1
~2 times；Compactness is detected in roller compaction process in time, when compactness is unsatisfactory for code requirement, increases rolling for pneumatic-tired rollers
Pass.
9. the construction method of the base of high additive cement stabilizing building waste mixture according to claim 4, feature
It is, when using two width to pave in paving process in step 6, number of rolling is increased at longitudinal seam；There are when longitudinal seam, indulge
To seam vertical connection.
10. the construction method of the base of high additive cement stabilizing building waste mixture according to claim 4, feature
It is, no-sundries is cleaned up between base and roadbed, and sprinkle water before base layer construction, makes road bed infiltration without product
Water；In step 7, health age is no less than 7d, closure construction section during health.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110294603A (en) * | 2019-07-09 | 2019-10-01 | 深圳市市政工程总公司 | The construction technology that building castoff processing recycles |
| CN110331641A (en) * | 2019-07-09 | 2019-10-15 | 深圳市市政工程总公司 | The steady construction method of road recycled water |
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| CN112125630A (en) * | 2020-06-17 | 2020-12-25 | 湖北益通建设股份有限公司 | High-content phosphogypsum-based stabilizing material and application thereof in road base |
| CN114195439A (en) * | 2021-12-24 | 2022-03-18 | 无锡市政设计研究院有限公司 | Design method for mix proportion of high-doping-amount construction waste cement stabilized macadam |
| CN116217183A (en) * | 2023-05-08 | 2023-06-06 | 湖南省交通科学研究院有限公司 | Water-permeable construction waste regenerated base material and mixing and construction process thereof |
| CN116217183B (en) * | 2023-05-08 | 2023-08-11 | 湖南省交通科学研究院有限公司 | Water-permeable construction waste regenerated base material and mixing and construction process thereof |
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