CN104909695B - The preparation method of ardealite hydraulicity road basement material - Google Patents
The preparation method of ardealite hydraulicity road basement material Download PDFInfo
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Abstract
The invention discloses a kind of ardealite hydraulicity roadbase, road basement material and preparation method thereof, it is related to road project field, the preparation method of the road basement material is：85%~92% ardealite, 15%~8% ordinary portland cement is weighed, is mixed evenly, obtains just batch mixing；Weigh 99.7%~99.95% first batch mixing, 0.3%~0.05% ardealite hydraulicity curing agent, be mixed evenly, obtain premix, and control premix moisture content be 14%~18%, obtain base material；Ardealite hydraulicity curing agent is mixed by the component of following mass percent：40%~60% elastic styrene acrylic emulsion, 30%~20% nanometer Alumina gel, 30%~20% Nano silica sol.The roadbase uses road basement material, is made according to standard road base layer construction method.The present invention enters to produce road basement material using ardealite, reduces the pollution to environment, and turn waste into wealth；The roadbase crack resistance of formation is not strong, perishable, service life length.
Description
Technical field
The present invention relates to road project field, and in particular to a kind of ardealite hydraulicity roadbase, roadbase
Material and preparation method thereof.
Background technology
Ardealite is to produce the solid waste given off when phosphate fertilizer, phosphoric acid, often produces 1t phosphoric acid and about produces 4.5-5t phosphorus
There are a large amount of ardealite outputs in gypsum, China every year.Ardealite has following characteristic：Ardealite is a kind of pulverulent material, almost
There is no plasticity；Remaining has phosphoric acid, sulfuric acid and hydrofluoric acid in ardealite, and it is a kind of acidic by-products (pH<3)；In ardealite
Containing 25%~30% Free water, the vertical permeability coefficient of ardealite is 2 × 10-5~1 × 10-3.At present, Chinese ardealite
Effective rate of utilization less than 10%, only minimal amount of ardealite is utilized production construction material, the phosphorus stone of remaining enormous amount
Cream is stacked as solid slag, stacks ardealite and does not only take up a large amount of soils, and the arsenic, cadmium, the mercury etc. that contain in ardealite have
Evil heavy metal chemical substance pollutes to environment.
Traditional road base material includes cement stabilized soil, lime stabilized soil and two-ash broken stones.In cement stabilized soil, cement
As a kind of hydraulic material, aquatic products rubber body is met, these colloids can not form unified entirety in soil, and can also destroy
Soil structure in itself and link, substantial amounts of unstable space is caused, these spaces are under the invasion of water and the change of temperature, meeting
Become very fragile, therefore the roadbase that cement stabilized soil is formed easily ftractures, crack resistance is poor.In lime stabilized soil, lime
It is a kind of air-setting material, its end product is calcium carbonate, and the solubility of calcium carbonate is far longer than calcium silicates and others
Silicate, therefore, the road matrix that lime stabilized soil is formed can constantly pass in the presence of water, easily corrosion；And this
Body poor toughness, fragility are strong, and temperature is lower, are more more easily damaged.Two-ash broken stones are that appropriate lime and fine coal are mixed in pellet
Ash, wherein lime and flyash are cementing material, and pellet plays skeleton function.The roadbase that two-ash broken stones are formed belongs to semi-rigid
Basic unit, there is the obvious hydraulicity, latent, but pellet and lime, flyash, once combining, it is anti-that inside stops chemistry
Should, the road matrix of formation is rigidly excessive, is easily influenceed and ftractureed by temperature and humidity, crack resistance is poor.
The content of the invention
For defect present in prior art, it is an object of the invention to provide a kind of ardealite hydraulicity Road Base
Layer, road basement material and preparation method thereof, road basement material is produced using ardealite, reduces the pollution to environment, and
Turn waste into wealth；The roadbase crack resistance of formation is not strong, perishable, service life length.
To achieve the above objectives, the present invention adopts the technical scheme that：A kind of ardealite hydraulicity road basement material
Preparation method, comprise the following steps：
A. ardealite innocent is handled：By percentage to the quality, weigh 85%~92% ardealite, 15%~8%
Ordinary portland cement, it is mixed evenly, obtains just batch mixing；
B. water hardening is handled：By percentage to the quality, weigh 99.7%~99.95% first batch mixing, 0.3%~0.05%
Ardealite hydraulicity curing agent, be mixed evenly, obtain premix, and control the moisture content of premix for 14%~
18%, obtain ardealite hydraulicity road basement material；
The ardealite hydraulicity curing agent is mixed by the component of following mass percent：40%~60% elasticity
Styrene-acrylic emulsion, 30%~20% nanometer Alumina gel, 30%~20% Nano silica sol, consolidating for the elastic styrene acrylic emulsion contain
Measure ＞ 55%.
On the basis of above-mentioned technical proposal, the ardealite hydraulicity curing agent is mixed by the component of following mass percent
Conjunction forms：46%~54% elastic styrene acrylic emulsion, 27%~23% nanometer Alumina gel, 27%~23% nano silicasol
Glue.
On the basis of above-mentioned technical proposal, the ardealite hydraulicity curing agent is mixed by the component of following mass percent
Conjunction forms：50% elastic styrene acrylic emulsion, 25% nanometer Alumina gel, 25% Nano silica sol.
On the basis of above-mentioned technical proposal, in step A, by percentage to the quality, weigh 87%~90% ardealite,
13%~10% ordinary portland cement.
On the basis of above-mentioned technical proposal, in step A, by percentage to the quality, weigh 88% ardealite, 12%
Ordinary portland cement.
On the basis of above-mentioned technical proposal, in step B, by percentage to the quality, 99.75%~99.85% is weighed
First batch mixing, 0.25%~0.15% ardealite hydraulicity curing agent.
On the basis of above-mentioned technical proposal, in step B, by percentage to the quality, weigh 99.8% first batch mixing,
0.2% ardealite hydraulicity curing agent.
A kind of ardealite hydraulicity road basement material, is made of the preparation method.
A kind of ardealite hydraulicity roadbase, using described ardealite hydraulicity road basement material, according to standard
Roadbase construction method is made.
On the basis of above-mentioned technical proposal, the standard road base layer construction method is：By the ardealite hydraulicity
Road basement material is transported to road base, and is paved on road base；Then compacting leveling, compactness ＞ 99%,
Complete the construction of ardealite hydraulicity roadbase.
Compared with prior art, the advantage of the invention is that：
(1) present invention in ardealite hydraulicity road basement material, weigh first 85%~92% ardealite, 15%
~8% ordinary portland cement, is mixed evenly, and acid-base neutralization reaction occurs for the calcium oxide and ardealite in cement, realizes to phosphorus
The harmless treatment of gypsum.Then 99.7%~99.95% first batch mixing, 0.3%~0.05% ardealite hydraulicity are weighed
Curing agent, be mixed evenly, obtain premix, and control premix moisture content be 14%~18%, carry out water hardening at
Reason, obtains the ardealite hydraulicity road basement material.Wherein, ardealite hydraulicity curing agent by following components mix and
Into：40%~60% elastic styrene acrylic emulsion, 30%~20% nanometer Alumina gel, 30%~20% Nano silica sol, bullet
The solid content ＞ 55% of property styrene-acrylic emulsion.The present invention makes full use of ardealite to produce road basement material, reduces the dirt to environment
Dye, and turn waste into wealth.
(2) the ardealite hydraulicity curing agent in the present invention is high molecular polymer nano material, and it is copolymerized long-chain contact
After ardealite powder, the semi-flexible solid matrix structure of durable water resistant is formed, makes ardealite powder permanent cured, so as to directly carry
The mechanical strength of high ardealite.Moreover, ardealite hydraulicity curing agent carries out charge-exchange with phosphogypsum grains, while neutralize phosphorus
Gypsum surface negative electrical charge, ardealite is set to lose the electrostatic attraction to water, so as to which the combination water around ardealite is replaced into freedom
Water, the water imbibition of ardealite is forever changed into hydrophobicity, therefore, the roadbase crack resistance for formation of constructing is not strong, perishable,
Service life is grown.
(3) the ardealite hydraulicity road basement material in the present invention directly generates aquation silicic acid gel, and these colloids rise
To the effect of lubricant so that roadbase is under the effect of equal compaction force, it is easier to is compacted, the compactness of roadbase can be light
Easily reach more than 99%, so as to greatly enhance the bearing capacity of roadbase and impermeability.
Embodiment
The present invention provides a kind of preparation method of ardealite hydraulicity road basement material, comprises the following steps：
A：Ardealite innocent processing：By percentage to the quality, weigh 85%~92% ardealite, 15%~8%
Ordinary portland cement, it is mixed evenly, obtains just batch mixing.
Preferably, 87%~90% ardealite, 13%~10% ordinary portland cement is weighed；
It is further preferred that weighing 88% ardealite, 12% ordinary portland cement, ordinary portland cement is normal silicate water
Mud.
Specifically production technology is：Ardealite is weighed, is added in a feed bin at cement ＆ stabilized soil stirring station, weighs general silicon
Cement, it is added in another feed bin at the cement ＆ stabilized soil stirring station；Material in two feed bins is added into forced action type to stir
Mix in machine, be mixed evenly, obtain just batch mixing.Because ardealite is acidity, cement contains calcium chloride, for alkalescence, ardealite
After cement mixing, acid-base neutralization reaction and other complicated chemical reactions occurs, realizes the harmless treatment to ardealite, most
Ardealite is set to turn into a kind of harmless basic material eventually.
B：Water hardening processing：By percentage to the quality, weigh 99.7%~99.95% first batch mixing, 0.3%~0.05%
Ardealite hydraulicity curing agent, be added in forced mixer, be mixed evenly, obtain premix, and control premix
The moisture content of material is 14%~18%, it is ensured that it possesses maximum and hits solidity and maximum compactness, obtains the ardealite hydraulicity
Road basement material.
Preferably, 99.75%~99.85% first batch mixing, the solidification of 0.25%~0.15% ardealite hydraulicity is weighed
Agent；
It is further preferred that weigh 99.8% first batch mixing, 0.2% ardealite hydraulicity curing agent.
Wherein, ardealite hydraulicity curing agent is mixed by the component of following mass percent：40%~60% bullet
Property styrene-acrylic emulsion, 30%~20% nanometer Alumina gel, 30%~20% Nano silica sol, the elastic styrene acrylic emulsion are consolidated
Content ＞ 55%, solid content is emulsion or coating dry under prescribed conditions after remainder account for the mass percent of total amount.Receive
The colloidal solution that rice Alumina gel is dispersed in water for the featheriness aluminum oxide micelle of positive charge, particle diameter is 25~30nm；Nano-silicon
Colloidal sol is dispersion liquid of the nano level silica dioxide granule in water or in solvent, and particle diameter is 25~30nm.
Preferably, ardealite hydraulicity curing agent is mixed by the component of following mass percent：46%~54%
Elastic styrene acrylic emulsion, 27%~23% nanometer Alumina gel, 27%~23% Nano silica sol；
It is further preferred that ardealite hydraulicity curing agent is mixed by the component of following mass percent：50%
Elastic styrene acrylic emulsion, 25% nanometer Alumina gel, 25% Nano silica sol.
Above-mentioned preparation method is described in further detail below by 5 specific embodiments.
Embodiment 1
Embodiment 1 provides a kind of preparation method of ardealite hydraulicity road basement material, comprises the following steps：
Ardealite 85kg, ordinary portland cement 15kg are weighed, is mixed evenly, obtains just batch mixing；Weigh just batch mixing
49.85kg, (component of ardealite hydraulicity curing agent includes ardealite hydraulicity curing agent 0.15kg：Elastic styrene acrylic emulsion
2kg, nanometer Alumina gel 1.5kg, Nano silica sol 1.5kg, the solid content ＞ 55% of the elastic styrene acrylic emulsion), mix
Uniformly, obtain premix, and control premix moisture content be 14%, obtain the ardealite hydraulicity road basement material.
Test the physical property of the ardealite hydraulicity road basement material：Unconfined compressive strength is within 7 days
2.68MPa；28 days unconfined compressive strengths are 7.8MPa.
Embodiment 2
Embodiment 2 provides a kind of preparation method of ardealite hydraulicity road basement material, comprises the following steps：
Ardealite 92kg, ordinary portland cement 8kg are weighed, is mixed evenly, obtains just batch mixing；Weigh just batch mixing
49.975kg, (component of ardealite hydraulicity curing agent includes ardealite hydraulicity curing agent 0.025kg：Elastic styrene acrylic emulsion
3kg, nanometer Alumina gel 1kg, Nano silica sol 1kg, the solid content ＞ 55% of the elastic styrene acrylic emulsion), it is mixed evenly,
Obtain premix, and control premix moisture content be 18%, obtain the ardealite hydraulicity road basement material.
Test the physical property of the ardealite hydraulicity road basement material：7 days unconfined compressive strengths are 3.5MPa；
28 days unconfined compressive strengths are 8MPa.
Embodiment 3
Embodiment 3 provides a kind of preparation method of ardealite hydraulicity road basement material, comprises the following steps：
Ardealite 87kg, ordinary portland cement 13kg are weighed, is mixed evenly, obtains just batch mixing；Weigh just batch mixing
49.875kg, (component of ardealite hydraulicity curing agent includes ardealite hydraulicity curing agent 0.125kg：Elastic styrene acrylic emulsion
2.3kg, nanometer Alumina gel 1.35kg, Nano silica sol 1.35kg, the solid content ＞ 55% of the elastic styrene acrylic emulsion), mixing
Stir, obtain premix, and control premix moisture content be 14%, obtain the ardealite hydraulicity roadbase material
Material.
Test the physical property of the ardealite hydraulicity road basement material：7 days unconfined compressive strengths are 4.5MPa；
28 days unconfined compressive strengths are 8MPa.
Embodiment 4
Embodiment 4 provides a kind of preparation method of ardealite hydraulicity road basement material, comprises the following steps：
Ardealite 90kg, ordinary portland cement 10kg are weighed, is mixed evenly, obtains just batch mixing；Weigh just batch mixing
49.925kg, (component of ardealite hydraulicity curing agent includes ardealite hydraulicity curing agent 0.075kg：Elastic styrene acrylic emulsion
2.7kg, nanometer Alumina gel 1.15kg, Nano silica sol 1.15kg, the solid content ＞ 55% of the elastic styrene acrylic emulsion), mixing
Stir, obtain premix, and control premix moisture content be 18%, obtain the ardealite hydraulicity roadbase material
Material.
Test the physical property of the ardealite hydraulicity road basement material：7 days unconfined compressive strengths are 4.5MPa；
28 days unconfined compressive strengths are 8.1MPa.
Embodiment 5
Embodiment 5 provides a kind of preparation method of ardealite hydraulicity road basement material, comprises the following steps：
Ardealite 88kg, ordinary portland cement 12kg are weighed, is mixed evenly, obtains just batch mixing；Weigh just batch mixing 49.9kg,
(component of ardealite hydraulicity curing agent includes ardealite hydraulicity curing agent 0.1kg：Elastic styrene acrylic emulsion 2.5kg, nano aluminum
Colloidal sol 1.25kg, Nano silica sol 1.25kg, the solid content ＞ 55% of the elastic styrene acrylic emulsion), it is mixed evenly, obtains
Premix, and control premix moisture content be 16%, obtain the ardealite hydraulicity road basement material.
Test the physical property of the ardealite hydraulicity road basement material：Unconfined compressive strength is within 7 days
4.85MPa；28 days unconfined compressive strengths are 8MPa.
The physical property of ardealite hydraulicity road basement material can be drawn as made from embodiment 1~5, present invention system
The physical property of ardealite hydraulicity road basement material be：7 days unconfined compressive strengths are 2.68~4.85MPa；28
Its unconfined compressive strength >=7.8MPa, is all higher than standard value, and therefore, ardealite hydraulicity road basement material of the present invention is formed
Roadbase compression strength is big, crack resistance is strong, not perishable, service life length.
The present invention also provides a kind of ardealite hydraulicity road basement material, is made of above-mentioned preparation method.
The present invention also provides a kind of ardealite hydraulicity roadbase, using ardealite hydraulicity road basement material, presses
The quasi- roadbase construction method of sighting target is made, and concrete construction method is：
(1) ardealite hydraulicity road basement material is transported to road base, and paved on road base：Profit
With paver, pave ardealite hydraulicity road basement material at twice, and the test section that paves first is 1000m2, each job step
Length be 200m~800m, special messenger is set behind paver and roots out local coarse aggregate nest, eliminates fine aggregate segregation phenomenon, is ensured
Flatness.
(2) compacting leveling, compactness ＞ 99% is ensured：Pave after ardealite hydraulicity road basement material, use every time
Land leveller is just flat, after vibrated roller static pressure 1~2 time；Then land leveller is flattened, and vibrated roller is compacted 4~6 times；Finally use
Three-roll road roller roll 4~6 times, and three-roll road roller trailing wheel answers overlapping 1/2 wheel width, and trailing wheel must be over two sections of seam
Place, in the process, vibrated roller should it is first light after weight, first quick and back slow, rolled from both sides to centre, curve section has super
Gao Shi, rolled by Inside To Outside.When the thickness of first layer roadbase is 30cm, and after compactness ＞ 99%, then enter
The capable ardealite hydraulicity road basement material that paves for the second time, and be compacted flatten, until the thickness of second layer roadbase is
30cm, and compactness ＞ 99%, complete the construction of ardealite hydraulicity roadbase.Compactness is also known as compacting degree, refers to soil
Or dry density and the ratio between standard maximum dry density after the compacting of other road-making materials, the measure of compactness expressed as a percentage is main
Determined and live density test including indoor standard density (maximum dry density).
Pave asphalt surface course on above-mentioned ardealite hydraulicity roadbase, you can completes road construction, Specific construction side
Method is：Before making asphalt surface course, debris, the surface dust on ardealite hydraulicity roadbase surface are cleaned out, avoids its destruction
The combination of asphalt surface course and ardealite hydraulicity roadbase, and ensure ardealite hydraulicity roadbase surface without ponding.
Pave asphalt surface course on ardealite hydraulicity roadbase, including after the particulate layer of middle granulosa and the 3cm thickness of 5cm thickness, bituminous sheaths
Before layer is qualitative, traffic is strictly controlled, and keep road surface to clean, forbid to stack on black top surface layer native or miscellaneous caused by construction
Thing, forbid to make cement mortar on black top surface layer.After asphalt surface course sizing, that is, road construction is completed, open route leads to
OK.
The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from
On the premise of the principle of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as the protection of the present invention
Within the scope of.The content not being described in detail in this specification belongs to prior art known to professional and technical personnel in the field.
Claims (6)
1. a kind of preparation method of ardealite hydraulicity road basement material, it is characterised in that comprise the following steps：
A. ardealite innocent is handled：By percentage to the quality, 85%~92% ardealite, 15%~8% general silicon is weighed
Cement, it is mixed evenly, obtains just batch mixing；
B. water hardening is handled：By percentage to the quality, 99.7%~99.95% first batch mixing, 0.3%~0.05% phosphorus is weighed
Gypsum hydraulicity curing agent, is mixed evenly, and obtains premix, and control premix moisture content be 14%~18%, obtain
To ardealite hydraulicity road basement material；
The ardealite hydraulicity curing agent is mixed by the component of following mass percent：40%~60% elastic styrene acrylic
Emulsion, 30%~20% nanometer Alumina gel, 30%~20% Nano silica sol, the solid content ＞ of the elastic styrene acrylic emulsion
55%, the colloidal solution that nanometer Alumina gel is dispersed in water for the featheriness aluminum oxide micelle of positive charge；
The ardealite innocent handles detailed process：Ardealite is weighed, is added to a material at cement ＆ stabilized soil stirring station
In storehouse, ordinary portland cement is weighed, is added in another feed bin at the cement ＆ stabilized soil stirring station；Material in two feed bins is added
Enter into forced mixer, be mixed evenly, obtain just batch mixing.
2. the preparation method of ardealite hydraulicity road basement material as claimed in claim 1, it is characterised in that：The phosphorus stone
Cream hydraulicity curing agent is mixed by the component of following mass percent：46%~54% elastic styrene acrylic emulsion, 27%~
23% nanometer Alumina gel, 27%~23% Nano silica sol.
3. the preparation method of ardealite hydraulicity road basement material as claimed in claim 2, it is characterised in that：The phosphorus stone
Cream hydraulicity curing agent is mixed by the component of following mass percent：50% elastic styrene acrylic emulsion, 25% nano aluminum
Colloidal sol, 25% Nano silica sol.
4. the preparation method of ardealite hydraulicity road basement material as claimed in claim 1, it is characterised in that：In step A,
By percentage to the quality, 88% ardealite, 12% ordinary portland cement is weighed.
5. the preparation method of ardealite hydraulicity road basement material as claimed in claim 1, it is characterised in that：In step B,
By percentage to the quality, 99.75%~99.85% first batch mixing, the solidification of 0.25%~0.15% ardealite hydraulicity is weighed
Agent.
6. the preparation method of ardealite hydraulicity road basement material as claimed in claim 5, it is characterised in that：In step B,
By percentage to the quality, 99.8% first batch mixing, 0.2% ardealite hydraulicity curing agent is weighed.
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| CN104909695A (en) | 2015-09-16 |
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