CN102676176A - Composite ionic soil curing agent and manufacturing method thereof - Google Patents
Composite ionic soil curing agent and manufacturing method thereof Download PDFInfo
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- CN102676176A CN102676176A CN2012100725172A CN201210072517A CN102676176A CN 102676176 A CN102676176 A CN 102676176A CN 2012100725172 A CN2012100725172 A CN 2012100725172A CN 201210072517 A CN201210072517 A CN 201210072517A CN 102676176 A CN102676176 A CN 102676176A
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Abstract
The invention relates a composite ionic soil curing agent and a manufacturing method thereof, aims at providing a high-efficient geotechnological building new material for highways, municipal administration, slope protection, water conservancy dams, building foundations and building anti-seepage works and belongs to the technical field of fine chemistry industry. The manufacturing method comprises the following steps of: enabling four components, namely a strong oxidant, an activating agent, a dispersing agent and a curing catalyst, to react and age in a reaction kettle according to the proportion that the percent by weight of ingredients (1) and (2) of the activating agent is 3% respectively, controlling the temperature at 30-32 DEG C, then adding the dispersing agent, uniformly stirring, reacting for 60 minutes, finally adding concentrated H2SO4, and controlling the reaction temperature below 60 DEG C so as to form the composite ionic soil curing agent. When the composite ionic soil curing agent is applied to construction, the using quantity accounts for 0.01-0.1% of the volume of a cured structure after compaction, after the composite ionic soil curing agent is diluted with water, the composite ionic soil curing agent is uniformly sprayed into soil mixed with other inorganic binders, uniformly mixed, rolled, compacted and maintained for a certain period of time, and then the effect of curing the soil in a stable and lasting manner is further achieved.
Description
Technical field
A kind of compound ion soil-solidified-agent and method of manufacture are that highway, municipal administration, side slope protection, water conservancy dykes and dams, building lot and building seepage control project provide efficiently civil engineering to use novel material, belong to the fine chemical technology field.
Background technology
Soil-solidified-agent be at normal temperatures can the direct glued soil body in soil particle surface or can generate the soil hardening agent of gum material with the clay mineral reaction.The seventies in 20th century, soil-solidified-agent is used widely in developed countries such as America and Europes as a kind of novel solidify material.Soil-solidified-agent has obtained widespread use with its superior performance in the construction of Infrastructure such as water conservancy, traffic, environment, harbour, airport, obtained significant effect.Mineral-type, organic class, biochemical enzyme and four big types of soil curing agent products of ionic species continued to bring out in recent years.Mostly domestic present solidifying agent is mineral-type solid, powdery soil-solidified-agent, main research and utilization cement solidification principle, and its portioned product has obtained the application on the engineering.Though the soil solidification agent prescription is different, reinforcement mechanism is basic identical.Its mechanism of action be solidifying agent with contain the mixing with soil of certain moisture after, a series of physical-chemical reactions take place, make solidified earth have irreversible, favorable durability.Organic polymer firming agent for soil kind is a lot, but all with soil particle chemical reaction does not take place, the use properties that can not fundamentally improve the soil.
Though the development of ionic soil-solidified-agent is very fast in the world, deficiency is separately arranged, still need constantly perfect.In recent years China has introduced a large amount of import ionic soil-solidified-agents, and its use has obtained certain success, but because its requirement to soil property is high, costs an arm and a leg, and practical application is few.The home-made solidifying agent is used only suitable part soil at present, can not adapt to all kinds of soil of different nature, and domestic independent research is produced compound ion type soil-solidified-agent and also is in the starting stage.In order to adapt to the application of different properties soil, the present invention has broken through the single deficiency of ion curing agent component, selects to form the compound ion soil-solidified-agent by organic assembling such as strong oxidizer, acvator, dispersion agent, curing catalysts; With make solidified earth reach closely knit through cal rolling after the soil effect, through the series of physical chemical reaction process, long chain molecule key bridge is overlapped to form tridimensional network, finally forms the integral slab block structure of stable and durable.Fundamentally changing the water-absorbent of soil and change the structure of soil particle, improve the final strength of solidified earth, strengthen water stability, is a kind of novel material of civil engineering efficiently, realizes the application of nature soil on building and road engineering.
Summary of the invention
The object of the present invention is to provide a kind of compound ion soil-solidified-agent and method of manufacture; Break through the single deficiency of curing agent component in the past; Realize the compatibility of soil-solidified-agent and all kinds of soil; Be suitable for the application of different properties soil, reacting with all kinds of soil becomes firm persistent consolidated structures, realizes soil improvement is become a kind of useful material of construction.
The technical problem that the present invention solved adopts following technical scheme to realize:
Staple of the present invention includes: acvator, dispersion agent, curing catalysts and strong oxidizer, and the per-cent of raw material chemical formula and quality thereof is:
Activator components: ①
②
R1 = 23-25 carbon atoms, a straight-chain or cyclic saturated alkyl group.Composition 1. and quality percentage composition 2. each 3%;
The dispersion agent composition:
R
2The alkyl of carbon bond is closed in=terminal the insatiable hunger that has 3-6 carbon
R
3The straight chained alkyl of=1-3 carbon) 7-25%;
The curing catalysts composition:
X can be O or S, R
4The straight chained alkyl of=2-5 carbon must reach the following powder of 2000 orders, and the quality percentage composition is 1%;
More than three kinds of raw materials add strong oxidizer (dense H
2SO
4) the percentage ratio sum of each raw material is 100%.
The characteristics according to the present invention are provided with 4 production plants such as curing catalysts workshop, acvator workshop, dispersion agent workshop and composite workshop, and production technique comprises the preparation of curing catalysts production, acvator production, dispersion agent production and compound ion soil-solidified-agent.
Acvator is produced: the production of acvator is carried out in the reduction activation complexes, and master operation comprises preparation of raw material, mixing, chemical reaction, ageing and reduction activation etc.The core apparatus of acvator production is that reduction activation part and reaction times 6-10 hour, temperature are controlled at-10-25 ℃.
Being formulated in the composite workshop of compound ion soil-solidified-agent carried out, and a complex production line is set in the workshop, and production line is made up of tempering tank, volume pump, finished product jar, packing dispense station etc.Its production stage is: process formed strong oxidizer, acvator, dispersion agent, curing catalysts respectively in laboratory, 4 workshops; 4 kinds of components in the acvator composition 1. and each ratio of 3% of quality percentage composition 2. in reaction kettle internal reaction, ageing; Temperature is controlled between 30-32 ℃; Add dispersion agent afterwards and stir, react after 60 minutes, add dense H at last
2SO
4, temperature of reaction is controlled at below 60 ℃, promptly forms the compound ion soil-solidified-agent.
The effect of the compound ion soil-solidified-agent each component among the present invention is following:
Strong oxidizer: open the electrochemistry key between grogs and the water molecules, excite between the soil particle aggregation force of self, make the water of grogs absorption become free water, grogs combines by positive negative potential again, and for a change the grogs structure creates favorable conditions.
Acvator: when acvator contacts with grogs, can effectively excite the activity of grogs, make the inertia soil particle become active stronger soil particle.
Dispersion agent: the active substance that activity is extremely strong is distributed to edaphic each position, and soil that adjacent key joint on the long key of soil-solidified-agent is upward charged and mineral substance form new valence link and combine.Same molecular chain again with adjacent grain soil particle through molecular linkage bridge overlap joint, form water-fast macromole, the long key of crisscross bonded will be adjacent, and soil particle is organic is connected as a single entity, and mutual tangled shape becomes the solid space reticulated structure.
Curing catalysts: when using jointly, reach compatible and rapid reaction, and realize having complementary advantages, fundamentally change the mechanical strength of soil, remedied the various defectives and the deficiency of traditional solidify material with traditional solidify material such as traditional cement, lime.
Compound ion soil-solidified-agent through strong oxidizer, acvator, dispersion agent and curing catalysts formation; After itself and the soil effect, make solidified earth reach closely knit, cause the hydraulic pressure in the grogs kapillary to exist through cal rolling; Internal drop is low, finally forms the integral slab block structure.Originally the combination water in the soil capillary is progressively replaced by long-chain macromolecule, and combination water has become free water.Wherein formed part condensation prod and crystal and dispersive active substance have been filled the pore of soil.Acvator constantly promotes the carrying out of exchange interaction, and grogs surface and macromolecular particle point of contact form irreversible condensing, and whole long-chain has become water-fast macromole.Surfactant is stagnated in soil surface and kapillary simultaneously; And adsorption takes place in its forceful electric power lotus and hydrogen bond and grogs surface; Make the arrangement polar group outside towards the grogs hydrophobic group, more firm along with the prolongation of time, form the extremely strong semi-rigid whole plate of stability.Significantly lower the wetting ability of soil thus, improve water stability.Change the use properties of soil, reach the final purpose of curing soil.
When the present invention uses at highway engineering construction, need with reference to national standard, i.e. " curing sub-surface and subbase TR CJJ/T80-98 ", " soil-solidified-agent 3073-1998 " and " soil-solidified-agent utilisation technology guide rule RISN-TG003-2007 ".
Compound ion soil-solidified-agent among the present invention at room temperature is nonflammable chocolate thick liquid, and sediment-free, proportion are 1.7g/cm3; Boiling point is 182 ℃, during use, mixes with 2-6% cement or 3-12% lime (or effective content of carbide slag) even with native mix; Compound ion soil-solidified-agent usage ratio is the 0.01-0.1% of compacting after fixing structural volume, and with water by 1: the dilution proportion of 100-200, evenly be sprayed in the soil of the scope of operation and mix even; After using 18 tons and above street roller compacting; Watering curing time 3-7 days passes through the series of physical chemical reaction process, and reaches the effect of soil solidification stable and durable.
The present invention compares with traditional solidifying agent, has the following advantages:
1, scientific formulation is reasonable, sets out to the most basic structure and two key factors of moisture of constituting soil mechanics intensity, and strong oxidizer, acvator, dispersion agent and curing catalysts etc. are selected in research, and are both targeted, again all kinds of soil is had strong compatible; Stable and reliable for performance, easy to use, highly enriched, consumption is few, be easy to transportation and store; Solidification effect is good, and intensity is high, water stability is good, antiseepage, solar heat protection and anti-freezing property are good.
2, have practicality widely, can be applicable to fields such as highway, municipal administration, side slope protection, water conservancy dykes and dams, building lot and building seepage control project, need not to transport on-the-spot soil; Gather materials on the spot; No longer need a large amount of sandstone material, practice thrift engineering cost greatly, the reduction of erection time; Compare with existing road-making material and can practice thrift the about 30-40% of the cost of building the road, but the reduction of erection time about 30%.
3, efficient civil engineering novel material has solved with carbide slag and the native naturally problem of compound ion type soil-solidified-agent comprehensive treating process, through water-absorbent that changes soil and the structure that changes soil particle, improves the final strength of solidified earth, strengthens water stability; In road maintenance, also can original asphalt pavement material recycling not only have been practiced thrift cost but also administered waste residue.
Embodiment
In order to make technical feature of the present invention, characteristic and effect be easy to more understand, will further set forth performance characteristics of the present invention from laboratory experiment and outdoor practical engineering application below.
Case study on implementation 1
Under laboratory conditions:
According to " earthwork test rule ", got the soil sample of 5mm sieve, by the cement of mixing 4% 32.5 labels outward, in the ratio of test block volume 0.02%, configuration compound ion soil-solidified-agent is mixed suitable quantity of water and is diluted mix, processes the test specimen of 50mm * 50mm.5 groups totally 45; Detect according to " curing sub-surface and subbase TR CJJ/T80-98 ", " soil-solidified-agent 3073-1998 " and " JTG E51-2009 highway engineering stabilized with inorganic binder testing of materials rules " operation and test; Getting 3 for every group carries out; 7 days (mark was supported immersion in+1 day in 6 days) unconfined compression strengths on average reach more than the 3.60Mpa, meet the requirement of motorway highway layout; Get 3 for every group and on average reach 7.05Mpa 28 days (27 days mark support+1 day immersion) unconfined compression strengths; Remaining 3 every group are carried out freezing and thawing test; Unconfined compression strength through 50 ℃ to-18 ℃ 18 times circulations are tested after soaked does not repeatedly have considerable change, can find out that by following table resistance to compression index of the present invention, water resistance and heat expansion-proof and cold shrinkage all are fabulous.
One group of intensity detection testing data:
Case study on implementation 2
Select certain manufacturing district factory road of middle part, Guangxi district, about 20,000 square metres of making area, the engineering time is in January, 2010-May, and this area's liquid limit of soil is 44%, and plastic limit is 24%, and plasticity index is 20, belongs to cohesive soil.The road subbase course mix material proportioning is soil-solidified-agent: carbide slag: plain soil=0.02%: 3%: 97%; The roadbase mix material proportioning is soil-solidified-agent: cement: carbide slag: plain soil=0.02%: 3%: 3%: 94%, and wherein, cement is 32.5 label Portland cements, and carbide slag is the industrial residue of PVC enterprise, and staple is the Ca (OH) that contains saturation water
2, plain soil is for needing the soil of outward transport in plant area's construction.Construction finishes; By detecting unit roadbed is detected, sub-surface and subbase compactness all reach more than 95%, and deflection value is also only in 60～100 (0.01mm) scope; Between the modulus of resilience 125.5-217MPa, all reached the requirement of design compactness and deflection value.At present, factory road has a large amount of loader transporter operations every day, and what road performance was still intact is keeping.Adopt the road of making of the present invention, greatly reduced engineering cost, practiced thrift the time greatly, greatly accelerated the all-round construction of plant area, effect very significantly.
Case study on implementation 3
Select Guangxi district city district newly developed town road, about 1800 square metres of path area.The soil of this area belongs to weak swelling soil, the existing clearly regulation of local government, and this soil is unprocessed can not to be used as the roadbed backfill soil.The road subbase course mix material proportioning is soil-solidified-agent: carbide slag: plain soil=0.02%: 6%: 94%; The roadbase mix material proportioning is soil-solidified-agent: cement: carbide slag: plain soil=0.02%: 3%: 6%: 91%.After project is completed, it is detected compactness and rebound deflection value by detecting unit.Through detecting, the subbase compactness is more than 97%, and representing deflection value is 159.8 (0.01mm); Compactness of subbase is more than 98%, and representing deflection value is 47.8 (0.01mm), all reaches even far surpasses design requirements.The used soil of this project is that spoir is piled up in this development area exploitation, has demonstrated fully the present invention and when road engineering is used, has gathered materials on the spot, and the characteristics of environmental protection and energy saving are for spoir processing in city provides effective settling mode.
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.
Claims (4)
1. compound ion soil-solidified-agent and preparation is characterized in that this compound ion soil-solidified-agent comprises following component: acvator, dispersion agent, curing catalysts and strong oxidizer, and the per-cent of raw material chemical formula and quality thereof is:
Acvator composition: 1.
2.
R
1The full alkyl that closes of the straight chain of=23-25 carbon or ring-type.Composition 1. and quality percentage composition 2. each 3%;
The dispersion agent composition:
R
2The alkyl of carbon bond is closed in=terminal the insatiable hunger that has 3-6 carbon
R
3The straight chained alkyl of=1-3 carbon) 7-25%;
The curing catalysts composition:
X can be O or S, R
4The straight chained alkyl of=2-5 carbon must reach the following powder of 2000 orders, and the quality percentage composition is 1%;
More than three kinds of raw materials add strong oxidizer (98%H
2SO
4) the percentage ratio sum of each raw material is 100%.
2. soil-solidified-agent according to claim 1; It is characterized in that production stage is: process formed strong oxidizer, acvator, dispersion agent, curing catalysts respectively in laboratory, 4 workshops, 4 kinds of components in the acvator composition 1. and each ratio of 3% of quality percentage composition 2. in reaction kettle internal reaction, ageing; Temperature is controlled between 30-32 ℃; Add dispersion agent afterwards and stir, react after 60 minutes, add dense H at last
2SO
4, temperature of reaction is controlled at below 60 ℃, promptly forms the compound ion soil-solidified-agent.
3. compound ion soil-solidified-agent according to claim 1, the ion activation agent that is comprised is characterized in that, produces and in the reduction activation complexes, carries out, master operation comprises preparation of raw material, mixing, chemical reaction, ageing and reduction activation etc.The core apparatus of acvator production is that reduction activation part and reaction times 6-10 hour, temperature are controlled at-10-25 ℃.
4. one kind is used each described a kind of compound ion soil-solidified-agent of claim 1-4, it is characterized in that, may further comprise the steps: during use; Mix with 2-6% cement or 3-12% lime and native mix even; Compound ion soil-solidified-agent usage ratio is the 0.01-0.1% of compacting after fixing structural volume, and with water by 1: the dilution proportion of 100-200, evenly be sprayed in the soil of the scope of operation and mix even; After using 18 tons and above street roller compacting; Watering curing time 3-7 days passes through the series of physical chemical reaction process, and reaches the effect of soil solidification stable and durable.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103664891A (en) * | 2013-12-24 | 2014-03-26 | 辽宁工程技术大学 | Soft soil foundation curing agent |
| CN103741567A (en) * | 2013-12-17 | 2014-04-23 | 柳州东风化工股份有限公司 | Method for curing base course and subbase of pavement by adopting soil stabilizing agent |
| CN103756338A (en) * | 2013-12-17 | 2014-04-30 | 柳州东风化工股份有限公司 | Asphalt regeneration curing agent |
| CN106968237A (en) * | 2017-03-24 | 2017-07-21 | 广东省建筑科学研究院集团股份有限公司 | A kind of semi-rigid sub-base material of utilization soil body solidification |
| GB2563424A (en) * | 2017-06-15 | 2018-12-19 | Mark Davies Richard | Soil treatment |
| CN110407528A (en) * | 2018-04-27 | 2019-11-05 | 上海麦酷网络科技有限公司 | A kind of mixing cured soil body road basement material of steel slag |
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| CN1280168A (en) * | 2000-06-22 | 2001-01-17 | 赵炎 | Soil stabilizer and its preparing method |
| CN101684409A (en) * | 2008-09-28 | 2010-03-31 | 孙建国 | Soil chemical stabilizer formula and application |
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2012
- 2012-03-19 CN CN201210072517.2A patent/CN102676176B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1280168A (en) * | 2000-06-22 | 2001-01-17 | 赵炎 | Soil stabilizer and its preparing method |
| CN101684409A (en) * | 2008-09-28 | 2010-03-31 | 孙建国 | Soil chemical stabilizer formula and application |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103741567A (en) * | 2013-12-17 | 2014-04-23 | 柳州东风化工股份有限公司 | Method for curing base course and subbase of pavement by adopting soil stabilizing agent |
| CN103756338A (en) * | 2013-12-17 | 2014-04-30 | 柳州东风化工股份有限公司 | Asphalt regeneration curing agent |
| CN103664891A (en) * | 2013-12-24 | 2014-03-26 | 辽宁工程技术大学 | Soft soil foundation curing agent |
| CN106968237A (en) * | 2017-03-24 | 2017-07-21 | 广东省建筑科学研究院集团股份有限公司 | A kind of semi-rigid sub-base material of utilization soil body solidification |
| GB2563424A (en) * | 2017-06-15 | 2018-12-19 | Mark Davies Richard | Soil treatment |
| GB2565414A (en) * | 2017-06-15 | 2019-02-13 | Mark Davies Richard | Soil treatment |
| CN110407528A (en) * | 2018-04-27 | 2019-11-05 | 上海麦酷网络科技有限公司 | A kind of mixing cured soil body road basement material of steel slag |
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| CN102676176B (en) | 2015-11-25 |
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