CN108516781A - A kind of ardealite cement graded broken stone stabilized zone and preparation method thereof - Google Patents

A kind of ardealite cement graded broken stone stabilized zone and preparation method thereof Download PDF

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Publication number
CN108516781A
CN108516781A CN201810394646.0A CN201810394646A CN108516781A CN 108516781 A CN108516781 A CN 108516781A CN 201810394646 A CN201810394646 A CN 201810394646A CN 108516781 A CN108516781 A CN 108516781A
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Prior art keywords
ardealite
aggregate
broken stone
graded broken
parts
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Inventor
吴赤球
杨新峰
吕伟
王玉珍
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HUBEI CHANG YAOXIN MATERIALS Ltd BY SHARE Ltd
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HUBEI CHANG YAOXIN MATERIALS Ltd BY SHARE Ltd
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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
    • C04B28/14—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 calcium sulfate cements
    • C04B28/142—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 calcium sulfate cements containing synthetic or waste calcium sulfate cements
    • C04B28/143—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 calcium sulfate cements containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being phosphogypsum
    • 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
    • C04B2111/00017—Aspects relating to the protection of the environment
    • 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

Abstract

The present invention provides a kind of ardealite cement graded broken stone stabilized zones, including aggregate and ardealite comprehensive stability material, aggregate includes coarse aggregate and fine aggregate, coarse aggregate includes the rubble of three kinds of grain sizes, 15~25 parts of wherein 4.75~9.5mm grain sizes, 15~25 parts of 9.5~19mm grain sizes, 20~30 parts of 19~26.5mm grain sizes, fine aggregate, including grain size are 30~40 parts of the aggregate chips of 0~4.75mm；Ardealite comprehensive stability material additive amount is the 15~20% of aggregate；And graded broken stone stabilized zone water content is 7.0~8.1%.Advantageous effect：The present invention provides the new routes using ardealite, can efficiently solve ardealite accumulation problem；7 days unconfined compressive strengths of graded broken stone stabilized zone are averaged 8.1Mpa, and 7 days unconfined compressive strengths are increased to 7 9Mpa, are far above the 5Mpa of cement stabilized macadam stabilized zone；Graded broken stone stabilized zone uses S95 grade or more of slag, and the performance that can effectively improve graded broken stone stabilized zone while reduces cost, and will not lead to pollution environment because of slag；Graded broken stone stabilization layer manufacturing method thereof is simple, does not need large quantities of professional equipments and can be realized.

Description

A kind of ardealite cement graded broken stone stabilized zone and preparation method thereof
Technical field
The present invention relates to novel graded broken stone stabilized zone fields, and in particular to a kind of ardealite cement graded broken stone stabilization Layer.
Background technology
Graded broken stone is gathered materials the mixture formed by grade of all sizes, when its grading meets the rule of technical specification Periodically, a grade distribution type is called to gather materials.Grade distribution type gather materials including graded broken stone, grading crushed-gravel (mixture of rubble and gravel, Crushed-gravel is formed together with gravel after often the oversize grain in gravel is smashed) and graded gravel (or graded gravel).Slightly, Fine stone, which gathers materials, respectively accounts for a certain proportion of mixture with aggregate chips, when its particle composition meets thick grading requirement, referred to as grading Rubble.Graded broken stone is usually to be assembled at the rubble of several (such as four) grade of different sizes by prescreening, it is also possible to Not sieved rubble and aggregate chips combine.After not sieved rubble only controls maximum particle diameter (sieve for only crossing a regulation sieve pore), by broken The ungarbled metaling of stone machine rolling.Aggregate chips refers to the triage under rubble field hole diameter 5mm sieves, practical particle group Cheng Changwei 0~10mm, and there is good grading.When lacking aggregate chips, fine sand gravel or coarse sand can also be added, but its strength and stability is not Such as add the graded broken stone of aggregate chips.It can also be formed with particle and suitably be coordinated containing the more gravel of fine aggregate and not sieved rubble At grading crushed-gravel.
Cement Treated Material is mainly made of pellet and grey volume of slurry.Pellet is graded broken stone, and grey volume of slurry includes Water and cementitious material, cementitious material are made of cement and mixing material.Portland cement, portland slag cement and volcano Grey matter portland cement, but the longer cement of final setting time should be selected.Quick-hardening cement, high-early (strength) cement and in wet condition go bad Cement should not use.Preferably use the lower cement of label.Cement Quality must satisfy national Specification.Mixing material point is lived Property and nonactive two major classes.Active material refers to the substances such as flyash, can be acted on the calcium oxide being precipitated in cement.Nonactive material Material refers to without the very low artificial or natural mineral material of activity or activity, and the quality requirements to this kind of material are materials Fineness and be free of harmful ingredient.It is generally suitable for the water drunk, it can mixing and maintenance cement stabilized macadam.Such as have to water quality Query, to determine in water whether have to strength of cement development have the substance of significant impact when, tested.It is taken from water source Cement mortar compressive strength rate made of the compression strength and distilled water of cement mortar made of water is less than 90%, Ci Zhongshui Water is should not be used in surely to construct.
Cement stabilized macadam action principle：Cement stabilized macadam is to make aggregate with graded broken stone, using a certain number of glue The gap of gel material and enough grey volume of slurry filler aggregates paves compacting by embedded squeezing principle.Its compactness close to compactness, Intensity ties principle, while the gap for having enough grey volume of slurry to carry out filler aggregate mainly by the embedded squeezing lock between rubble.Its initial stage Intensity is high, and intensity increases with age and forms plate body quickly, thus has higher intensity, impervious degree and frost resistance compared with It is good.Cement stabilized macadam cement consumption is generally mixture 3%~6%, 7 days unconfined compressive strengths up to 5.0Mpa, compared with Other roadbed materials are high.Chance rain is not muddy after cement stabilized macadam survives, and surface is solid, is ideal base's material of high class pavement Material.According to Ministry of Communications《Highway road surface construction technology detailed rules and regulations》(F20~2015 JTG/T) provide, cement stabilized macadam belongs to Middle grain soil, due to water it is steady in containing the cementitious materials such as cement thus require entire work progress to be completed before cement final set, and And once reach quality standards, it is otherwise not easy to modify.It requires to reinforce Design of Construction Organization in thus constructing and plan is administered, increase The sense of urgency and the sense of duty of site operation personnel, accelerates construction progress, and increases mechanized construction degree, improves mechanical efficiency.Water Steady construction method also complies with the direction for modernizing extensive Mechanization Development.Thus application of the water surely in road construction can obtain To promoting quickly.
Ardealite is solid slag caused by decomposing phosphate rock stone during Wet-process phosphoric acid (WPPA), mainly with dihydrate gypsum (CaSO4.2H2) or semi-hydrated gypsum (CaSO O4.1/2H2O) form exists, usual white or Dark grey moist fine powdered, Its density is 2.05~2.45g/cm3, and bulk density 0.85g/cm3, less than 0.2mm, free water content is 95% particle 20%~30%, stickiness is stronger, and pH value is about 1.5~4.5.Country's ardealite heap is high-volume up to 2.5 hundred million tons at present, domestic size Fertile enterprise and the enterprise of production calcium hydrophosphate fodder and industrial phosphoric acid salt have upper hundred, each province and city Dou You manufacturing enterprises, phosphorus Gypsum nationwide, yield is big, it is wide to take up an area, and has dealt with larger difficulty.Therefore, most domestic enterprise is by ardealite Stacking is handled.According to statistics, China's ardealite year utilization is at 400~5,000,000 tons, only 27% or so (day capital and interest of comprehensive utilization ratio With rate up to 90%).
About the comprehensive utilization of ardealite, the method for processing both at home and abroad and disposition ardealite has at present：For cement industry, Sulphuric acid co-producing cement, cement retarder；Produce gypsum building material product, such as land plaster, plasterboard, gypsum block, non-burning brick, suction Sound plate etc.；Industrial chemicals is produced, soil conditioner, backfill processing etc. are used as.
Miberal powder be it is a kind of by slag (with calcium silicates, calcium aluminate fusant as main component, warp caused by blast furnace process After quenching granulating be granulated blast-furnace slag) after fine powder is ground made of powdered substance, main component SiO2、Al2O3With CaO, highly active, specific surface area is 400~600 ㎡/kg, density 2900kg/m3, pH value is generally 11.5~ 12.5.In industrial production, slag plays important role, especially some weight integrated mills.Refinement is made using slag It is processed as slag cements, slag micropowder, miberal powder, portland slag cement, mineral wool, blast-furnace cinder, granulated blast-furnace miberal powder, copper mine Slag, slag vertical-mill have saved energy consumption, but slag has air certain pollution.National standard is pressed at present《For cement and Granulated blast-furnace miberal powder in concrete》(GB/T18046~2000) regulation is divided into S105, S95, S75 three grades, usually will During it is produced as admixture incorporation Portland cement concrete (PCC), to reduce cement concrete cost and improve coagulating cement soil nature Energy.
Current graded broken stone stabilized zone type mainly has：
1) cement stabilized graded macabam stabilized zone, referring to Chinese patent CN 103590295A；
2) powder graded broken stone stabilized zone is recycled, referring to Chinese patent CN 105442402A；
3) flyash grading macadam stabilized zone, Guizhou Province north fly ash in electric power plant Semi-rigid Road Base Course performance study handsome referring to applying [D] University Of Chongqing, 2009；
4) miberal powder graded broken stone stabilized zone, referring to Chinese patent CN 104074113A, etc..
The graded broken stone stabilized zone of the above type is as the requirements such as growing technology, raw material, technique continuously emerge 's.With the continuous development and growth of China's Transportation Infrastructure Construction scale, the type and construction task of engineering are more and more. Basic road construction material consumption is increasing, based on the sustainable exploitation and use principle to resource, to being related in road construction And new technology, new process, new material etc. more stringent requirements are proposed；Meanwhile the harm of ardealite and slag etc. can not be ignored.
Therefore, it is necessary to continue to propose a kind of rubble stabilized zone stablized using new material, to reach road construction to grade With the higher requirement of rubble stabilized zone：Dirt road base is protected not corroded by the unfavorable natural conditions such as water and frost, good thermal insulation Property, the ability of water-resisting property and drainage, while ardealite and slag can be effectively utilized.
Invention content
The present invention provides a kind of ardealite cement graded broken stone stabilized zone, be it is a kind of with ardealite for main stabilizing material Graded broken stone stabilized zone solves the problems, such as ardealite accumulation and slag pollution in industrial production, and can better meet The requirement that road is constructed to graded broken stone stabilized zone.
To realize purpose, present invention employs the following technical solutions：
A kind of ardealite cement graded broken stone stabilized zone, including aggregate and ardealite comprehensive stability material, wherein aggregate packet Coarse aggregate and fine aggregate are included,
Coarse aggregate includes the rubble of three kinds of grain sizes, wherein 15~25 parts of the rubble of 4.75~9.5mm grain sizes, 9.5~19mm 15~25 parts of the rubble of grain size, 20~30 parts of the rubble of 19~26.5mm grain sizes,
Fine aggregate, including grain size are 30~40 parts of the aggregate chips of 0~4.75mm；
Ardealite comprehensive stability material additive amount is the 15~20% of aggregate；Wherein graded broken stone stabilized zone water content is 7.0~8.1%；Graded broken stone water content is measured by compaction test.
Further, the ardealite comprehensive stability material includes 15~20 parts of ardealite, 10 parts of cement, 10 parts of miberal powder.
Particularly, the rubble, aggregate chips, ardealite, cement, miberal powder, water are mass fraction.
The present invention also provides a kind of preparation methods of ardealite cement graded broken stone stabilized zone, and technical solution includes following Step,
S1 mixes in proportion ardealite after sieving, filtering with slag, and ripening is carried out in aging tank 48~72h, for use；
Cement is proportionally added into step S1 gains by S2, is stirred evenly, for use；
S3 mixes in proportion coarse aggregate and fine aggregate, for use；
Step S2 gains are added to by 15~20% additive amounts in step S3 gains by S4, and add suitable water (addition range 10~15%), is uniformly mixed, for use；
Step S4 gains are laid on roadbed by S5, by cal rolling up to graded broken stone stabilized zone.
Further, the temperature in S1 in aging tank is set as 10~15 DEG C.
Compared with the prior art, the present invention has the advantages that：
1) the present invention provides the new routes using ardealite, can efficiently solve ardealite accumulation problem, while this hair Calcium sulphate dihydrate (CaSO in the ardealite of bright use4.2H2O content) in 92%-99%, other materials be insoluble impurities, (residual phosphorus content is about 0.33%-3.23%, wherein water-soluble and do not allow for soluble impurity, part trace element and residual phosphorus Property phosphorus account for about half, this is to influence ardealite performance and the comprehensive harmful substance recycled), in addition to remaining phosphorus, other impurity are equal For not capacitive solid, since content is extremely low, harmfulness is negligible；
2) 7 days unconfined compressive strengths of graded broken stone stabilized zone provided by the invention are averaged 8.1Mpa (up to 9.5Mpa), 7 days unconfined compressive strengths are increased to the standard of 7-9Mpa, are far above the 5Mpa of cement stabilized macadam stabilized zone, The cost of graded broken stone stabilized zone provided by the invention is suitable with the ordinary cement stabilization cost of graded broken stone stabilized zone simultaneously, tool There is preferable promotional value；
3) graded broken stone stabilized zone provided by the invention uses S95 grades or more of slag, can effectively improve grading Cost is reduced while the performance of rubble stabilized zone, and will not cause to pollute environment because of slag；
4) graded broken stone stabilization layer manufacturing method thereof provided by the invention is simple, does not need large quantities of professional equipments and can be realized, Meanwhile graded broken stone provided by the invention significantly reduces the usage amount of cement so that the setting time of graded broken stone stabilized zone It is appropriately extended, it is convenient while being laid with that it is modified, it is conducive to provide engineering total quality.
Specific implementation mode
Embodiment 1
The present embodiment proposes a kind of ardealite cement graded broken stone stabilized zone, including aggregate and ardealite comprehensive stability material Material, wherein aggregate include coarse aggregate and fine aggregate,
Coarse aggregate includes the rubble of three kinds of grain sizes, wherein 15 parts of the rubble of 4.75~9.5mm grain sizes, 9.5~19mm grain sizes 25 parts of rubble, 19~26.5mm grain sizes 30 parts of rubble,
Fine aggregate, including grain size are 30 parts of the aggregate chips of 0~4.75mm；
Ardealite comprehensive stability material additive amount is the 15% of aggregate；Wherein graded broken stone stabilized zone water content is 7.0%.
Preferably, the ardealite comprehensive stability material includes 15 parts of ardealite, 10 parts of cement, 10 parts of miberal powder.
The present embodiment additionally provides a kind of preparation method of ardealite cement graded broken stone stabilized zone, includes the following steps,
S1 is by ardealite and slag in proportion 15：10 are uniformly mixed, and ripening 48h are carried out in aging tank, for use；
Cement is pressed ardealite by S2：Cement=15：10 ratio is added in step S1 gains, is stirred evenly, for use；
Coarse aggregate and fine aggregate are pressed coarse aggregate by S3：15 parts of the rubbles of 4.75~9.5mm grain sizes, 9.5~19mm grain sizes 30 parts of the rubble of 25 parts of rubble, 19~26.5mm grain sizes, fine aggregate, including grain size are 30 parts of the aggregate chips of 0~4.75mm, and mixing is equal It is even, for use；
Step S2 gains are added to by 15% additive amount in step S3 gains by S4, and add 10% water, mixing Uniformly, for use；
Step S4 gains are laid on roadbed by S5, by cal rolling up to graded broken stone stabilized zone.
Preferably, the temperature in step S1 in aging tank is set as 10 DEG C.
The graded broken stone stabilized zone of gained in the present embodiment carries out 7d unconfined compressive strength inspection results and see the table below：
Table 1：7d unconfined compressive strengths inspection result in embodiment 1
Embodiment 2
The present embodiment proposes a kind of ardealite cement graded broken stone stabilized zone, including aggregate and ardealite comprehensive stability material Material, wherein aggregate include coarse aggregate and fine aggregate,
Coarse aggregate includes the rubble of three kinds of grain sizes, wherein 20 parts of the rubble of 4.75~9.5mm grain sizes, 9.5~19mm grain sizes 20 parts of rubble, 19~26.5mm grain sizes 25 parts of rubble,
Fine aggregate, including grain size are 35 parts of the aggregate chips of 0~4.75mm；
Ardealite comprehensive stability material additive amount is the 18% of aggregate；Wherein graded broken stone stabilized zone water content is 7.5%.
Preferably, the ardealite comprehensive stability material includes 18 parts of ardealite, 10 parts of cement, 10 parts of miberal powder.
The present embodiment additionally provides a kind of preparation method of ardealite cement graded broken stone stabilized zone, includes the following steps,
S1 is by ardealite and slag in proportion 18：10 are uniformly mixed, and ripening 60h are carried out in aging tank, for use；
Cement is pressed ardealite by S2：Cement=18：10 ratio is added in step S1 gains, is stirred evenly, for use；
Coarse aggregate and fine aggregate are pressed coarse aggregate by S3：20 parts of the rubbles of 4.75~9.5mm grain sizes, 9.5~19mm grain sizes 25 parts of the rubble of 20 parts of rubble, 19~26.5mm grain sizes, fine aggregate, including grain size are 35 parts of the aggregate chips of 0~4.75mm, and mixing is equal It is even, for use；
Step S2 gains are added to by 15% additive amount in step S3 gains by S4, and add 12% water, mixing Uniformly, for use；
Step S4 gains are laid on roadbed by S5, by cal rolling up to graded broken stone stabilized zone.
Preferably, the temperature in step S1 in aging tank is set as 12 DEG C.
The graded broken stone stabilized zone of gained in the present embodiment carries out 7d unconfined compressive strength inspection results and see the table below：
Table 2：7d unconfined compressive strengths inspection result in embodiment 2
Embodiment 3
The present embodiment proposes a kind of ardealite cement graded broken stone stabilized zone, including aggregate and ardealite comprehensive stability material Material, wherein aggregate include coarse aggregate and fine aggregate,
Coarse aggregate includes the rubble of three kinds of grain sizes, wherein 25 parts of the rubble of 4.75~9.5mm grain sizes, 9.5~19mm grain sizes 15 parts of rubble, 19~26.5mm grain sizes 30 parts of rubble,
Fine aggregate, including grain size are 40 parts of the aggregate chips of 0~4.75mm；
Ardealite comprehensive stability material additive amount is the 20% of aggregate；Wherein graded broken stone stabilized zone water content is 8.1%.
Preferably, the ardealite comprehensive stability material includes 20 parts of ardealite, 10 parts of cement, 10 parts of miberal powder.
The present embodiment additionally provides a kind of preparation method of ardealite cement graded broken stone stabilized zone, includes the following steps,
S1 is by ardealite and slag in proportion 20：10 are uniformly mixed, and ripening 70h are carried out in aging tank, for use；
Cement is pressed ardealite by S2：Cement=20：10 ratio is added in step S1 gains, is stirred evenly, for use；
Coarse aggregate and fine aggregate are pressed coarse aggregate by S3：25 parts of the rubbles of 4.75~9.5mm grain sizes, 9.5~19mm grain sizes 30 parts of the rubble of 15 parts of rubble, 19~26.5mm grain sizes, fine aggregate, including grain size are 40 parts of the aggregate chips of 0~4.75mm, and mixing is equal It is even, for use；
Step S2 gains are added to by 15% additive amount in step S3 gains by S4, and add 15% water, mixing Uniformly, for use；
Step S4 gains are laid on roadbed by S5, by cal rolling up to graded broken stone stabilized zone.
Preferably, the temperature in step S1 in aging tank is set as 15 DEG C.
The graded broken stone stabilized zone of gained in the present embodiment carries out 7d unconfined compressive strength inspection results and see the table below：
Table 3:7d unconfined compressive strengths inspection result in embodiment 3
Graded broken stone stabilized zone in embodiment 1, embodiment 2 and embodiment 3, according to《Highway engineering inorganic binder is steady Determine testing of materials regulation》The third method carries out compaction test respectively in (JTG E51-2009), as a result as follows：
Table 4：1 compaction test results of embodiment
Table 5：2 compaction test results of embodiment
Table 6：3 compaction test results of embodiment
Table 4 shows that the maximum dry density of graded broken stone in embodiment 1 is 2.213, optimum moisture content 7.0；
Table 5 shows that the maximum dry density of graded broken stone in embodiment 2 is 2.223, optimum moisture content 7.5；
Table 6 shows that the maximum dry density of graded broken stone in embodiment 3 is 2.230, optimum moisture content 8.1；
S4 steps amount of water and last graded broken stone optimum moisture content are can be seen that in each embodiment at just from the above content Than, and 1~table of table 3 is combined to find out, S4 steps amount of water and 7d unconfined compressive strengths are in inverse ratio, amount of water in each embodiment Graded broken stone has maximum intensity 8.35Mpa when 10%.
In embodiment 1, embodiment 2 and embodiment 3, just water content is 10% or so to the ardealite, is not required in ardealite Middle addition water, which can admix miberal powder, wherein (only to be needed to adjust stirring extent as the case may be)；(main component is ardealite CaSO4.2H2O) itself do not have gelling, miberal powder is the cementitious material of potential hydraulically active, carry out ripening be in order to Promote the glue sand condensation between ardealite and slag, improving the hydraulically active of ardealite, (hydraulically active cementitious material refers to building The material of an entirety can be cemented to by loose material (such as sand, stone) or bulk material (such as brick, ceramic tile) by building in engineering.It is not It is only capable of in air, and can preferably harden in water, keep and continue to develop its intensity, such as various cement)；And with ageing The 7d unconfined compressive strengths of the increase of time, graded broken stone stabilized zone are on a declining curve.
In embodiment 1, embodiment 2 and embodiment 3, ardealite comprehensive stability material is prepared using substep, i.e., first by phosphorus Gypsum and miberal powder mixing, after ripening again with cement mixing；Wherein, the tricalcium silicate in miberal powder and dicalcium silicate and water It is not soluble in water to react the hydrated calcium silicate generated, is precipitated with colloidal particles, and be gradually condensed into gelinite i.e. C-S-H gels；It is raw At calcium hydroxide concentration in the solution quickly reach and be precipitated in hexagonal after saturation；Tricalcium aluminate and tetra calcium aluminoferrite water Change reaction and generate drated calcium aluminate cubic crystal, and in the calcium hydroxide saturated solution further with react generation hexagonal Four calcium of aquation aluminic acid；Ardealite can mutually react with a large amount of aluminium phase, ferro-aluminum in miberal powder and (mainly react life with drated calcium aluminate At hydrated calcium aluminate sulfate), stable hydrated product list sulfur type hydrated calcium aluminate sulfate crystal is formed, water is insoluble in, is constantly deposited in Cement particle surface forms protective film, which is applied to graded broken stone stabilized zone, can not only be kept away Exempting from graded broken stone stabilized zone causes to occur suddenly coagulating due to cement setting, and setting time can be appropriately extended, be conducive to It is convenient while laying that it is modified, it is conducive to provide engineering total quality；And the property of cement can also be improved It can so that the intensity of graded broken stone is highly improved；And can also improve graded broken stone stabilized zone protect dirt road base not by The ability that the unfavorable natural conditions such as water and frost corrode, makes it have the ability of good heat-insulated character, water-resisting property and drainage, more Graded broken stone stabilized zone can be made to have many advantages, such as effectively to separate underground and the surface water between roadbed and road surface, and then effectively prolonged Long service life of road surface has very strong engineering application value.
Finally illustrate, the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although with reference to compared with Good embodiment describes the invention in detail, it will be understood by those of ordinary skill in the art that, it can be to the skill of the present invention Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this In the right of invention.

Claims (4)

1. a kind of ardealite cement graded broken stone stabilized zone, which is characterized in that including aggregate and ardealite comprehensive stability material, Middle aggregate includes coarse aggregate and fine aggregate,
Coarse aggregate includes the rubble of three kinds of grain sizes, wherein 15~25 parts of the rubble of 4.75~9.5mm grain sizes, 9.5~19mm grain sizes 15~25 parts of rubble, 19~26.5mm grain sizes 20~30 parts of rubble,
Fine aggregate, including grain size are 30~40 parts of the aggregate chips of 0~4.75mm；
Ardealite comprehensive stability material additive amount is the 15~20% of aggregate；Wherein graded broken stone stabilized zone water content be 7.0~ 8.1%.
2. a kind of ardealite cement graded broken stone stabilized zone as described in claim 1, which is characterized in that the ardealite synthesis Stabilizing material includes 15~20 parts of ardealite, 10 parts of cement, 10 parts of miberal powder.
3. a kind of preparation method of the ardealite cement graded broken stone stabilized zone described in claim 2, which is characterized in that including with Lower step：
S1 mixes in proportion ardealite after sieving, filtering with miberal powder, in aging tank carry out ripening 48~ 72h, for use；
Cement is proportionally added into step S1 gains by S2, is stirred evenly, for use；
S3 mixes in proportion coarse aggregate and fine aggregate, for use；
Step S2 gains are added to by 15~20% additive amounts in step S3 gains by S4, and add suitable water, mixing Uniformly, for use；
Step S4 gains are laid on roadbed by S5, by cal rolling graded broken stone stabilized zone.
4. the preparation method of ardealite cement graded broken stone stabilized zone as claimed in claim 3, which is characterized in that will be old in S1 The temperature changed in pond is set as 10~25 DEG C.
CN201810394646.0A 2018-04-27 2018-04-27 A kind of ardealite cement graded broken stone stabilized zone and preparation method thereof Pending CN108516781A (en)

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CN110304884A (en) * 2019-08-07 2019-10-08 交通运输部公路科学研究所 A kind of cement ardealite stabilization gravel material and its preparation method and application for roadbase
CN111410500A (en) * 2020-04-28 2020-07-14 湖北昌耀新材料股份有限公司 Phosphogypsum ceramsite ball and spherical and gravel type phosphogypsum ceramsite ball light aggregate water stabilization layer
CN111499324A (en) * 2020-04-02 2020-08-07 湖北益通建设股份有限公司 Low-toxicity phosphogypsum cemented macadam material and application thereof in road base course
CN111848080A (en) * 2020-07-09 2020-10-30 武汉理工大学 Over-sulfur phosphogypsum slag cement stabilizing layer, phosphogypsum-based cementing material and preparation method thereof
CN112707689A (en) * 2020-12-30 2021-04-27 昆明理工大学 Highway water stabilizing material and preparation method thereof
CN113716928A (en) * 2021-08-31 2021-11-30 深圳市颐泰中和科技有限公司 Road, water-stable layer thereof and preparation process
CN113754398A (en) * 2021-09-18 2021-12-07 湖北昌耀新材料工程技术研究有限责任公司 Modified phosphogypsum stabilized macadam and preparation method and application thereof

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Publication number Priority date Publication date Assignee Title
CN110304884A (en) * 2019-08-07 2019-10-08 交通运输部公路科学研究所 A kind of cement ardealite stabilization gravel material and its preparation method and application for roadbase
CN110304884B (en) * 2019-08-07 2021-10-01 交通运输部公路科学研究所 Cement phosphogypsum stabilized macadam material for road base and preparation method and application thereof
CN111499324A (en) * 2020-04-02 2020-08-07 湖北益通建设股份有限公司 Low-toxicity phosphogypsum cemented macadam material and application thereof in road base course
CN111410500A (en) * 2020-04-28 2020-07-14 湖北昌耀新材料股份有限公司 Phosphogypsum ceramsite ball and spherical and gravel type phosphogypsum ceramsite ball light aggregate water stabilization layer
CN111410500B (en) * 2020-04-28 2022-03-01 湖北昌耀新材料股份有限公司 Phosphogypsum ceramsite ball and spherical and gravel type phosphogypsum ceramsite ball light aggregate water stabilization layer
CN111848080A (en) * 2020-07-09 2020-10-30 武汉理工大学 Over-sulfur phosphogypsum slag cement stabilizing layer, phosphogypsum-based cementing material and preparation method thereof
CN112707689A (en) * 2020-12-30 2021-04-27 昆明理工大学 Highway water stabilizing material and preparation method thereof
CN113716928A (en) * 2021-08-31 2021-11-30 深圳市颐泰中和科技有限公司 Road, water-stable layer thereof and preparation process
CN113754398A (en) * 2021-09-18 2021-12-07 湖北昌耀新材料工程技术研究有限责任公司 Modified phosphogypsum stabilized macadam and preparation method and application thereof

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