CN103288391A - Pure inorganic sludge curing agent - Google Patents
Pure inorganic sludge curing agent Download PDFInfo
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- CN103288391A CN103288391A CN2013102072476A CN201310207247A CN103288391A CN 103288391 A CN103288391 A CN 103288391A CN 2013102072476 A CN2013102072476 A CN 2013102072476A CN 201310207247 A CN201310207247 A CN 201310207247A CN 103288391 A CN103288391 A CN 103288391A
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Abstract
The invention provides a pure inorganic sludge curing agent which comprises the following components in parts by weight: 50.0-66.7 parts of cement, 16.7-25.0 parts of palygorskite and 13.3-25.0 parts of sericite, wherein the total amount of raw materials are 100 parts. The doped quantity of the pure inorganic sludge curing agent in using is 10%-20% of the mass of sludge. The sludge curing agent provided by the invention can effectively improve the best moisture content of sludge, and when sludge achieves the same intensity, moisture required to be excluded from the sludge is less; palygorskite and sericite can develop a greater water absorption effect; additionally, layer silicate minerals interact and develop the characteristics of clay minerals, so that the curing sludge has higher anti-scouring and antifreezing performances. The pure inorganic sludge curing agent provided by the invention develops the applications of palygorskite and sericite in the field of curing agents; the curing sludge is used for road fillers, and the road construction cost is lowered; the environment is protected.
Description
Technical field
The invention belongs to road weak soil solidify material field, relate to a kind of sludge curing agent, be specifically related to a kind of pure inorganic sludge curing agent.
Background technology
Along with the development in industry and city, strand municipal sludge output is increasing.The engineering characteristic of mud is poor, mainly shows as a glutinous grain content height, water ratio height, compressibility is big, intensity is low, penetrating quality is poor, discharging consolidation is slow.The mud water ratio mostly is 1.2～2.0 times of liquid limit water ratio, so many places in flow state, almost do not have intensity, just can utilize after therefore must being cured.
The first step that utilizes mud is exactly sludge solidification.So-called curing mixed mud with solidifying agent exactly, with free water generation absorption or the hydration reaction in the mud, the hydrate that generates is transformed into stable xln gradually by gelatinized, be filled in the hole of silt soil particle, form firm skeleton, strengthen the intensity of mud.
Sludge solidification is handled has the advantage that treatment capacity is big, the treatment time is short, and this also is the optimum way of present domestic extensive processing mud.High-moisture, low intensive waste silt can be converted into engineering earth, the mud after the solidification treatment has the advantage of high strength, low-permeability.In the road construction of China, generally adopt lime stabilization mucky soil, cement stabilizing mucky soil or traditional mud reinforcement means curing sludge matter weak soils such as various comprehensive stability mucky soil class subbase, roadbed.But the solidification effect of this class solidifying agent depends on granularity and the water content of soil, and when running into the water content height and being rich in organic mucky soil, traditional solidifying agent such as employing cement often cause the intensity behind the sludge solidification on the low side, are difficult to compacting.
In the sludge solidification field, mainly in order to the solidification intensity that improves mud, the water resisting property that improves mud, unslaked lime has the effect that improves intensity and reduce the salt marsh composition influence to cement.Solidifying agent be used for the curing sludge effect preferably achievement in research have: cement 10%～30%, lime 10%～20%, flyash 50%～80%, high but this achievement requires optimum moisture content, when the road filler was constructed, difficulty satisfied compacting requirement.The sludge curing agent that lime, gypsum, sintering such as sticking sandy soil, bauxitic clay and fluorite form is used it for curing sludge, and water resisting property is better, if be used for high-grade highway, intensity is difficult to meet the demands.Cement clinker 20～80, slag 10～70, gypsum 1～20, lime 1～50, the solidifying agent of this proportioning are used for curing sludge, and intensity easily satisfies the requirement of standard, however its freezing and thawing performance, anti-water damage ability are all relatively poor.Polygorskite, sericite are layer mineral, have water-absorbent and the collaborative curing sludge of cement preferably, not only can improve intensity, reduce shrinkability, can also effectively improve the optimum moisture content of mud, overcome the shortcoming of mud compacting difficulty when doing road subbase course and roadbed filling.
Summary of the invention
At the deficiencies in the prior art, the objective of the invention is to, a kind of pure inorganic sludge curing agent is provided, this solidifying agent can improve the optimum moisture content of mud, the pure inorganic sludge curing agent that curing performance is better, curing sludge soil body pavement performance requires.
In order to realize above-mentioned task, the present invention adopts following technical scheme to be achieved:
A kind of pure inorganic sludge curing agent, in parts by weight, formed by following raw material: 50.0～66.7 parts of cement, 16.7～25.0 parts of polygorskites, 13.3～25.0 parts of sericites, the raw material total amount is 100 parts.
Preferred pure inorganic sludge curing agent, in parts by weight, formed by following raw material: 50～60 parts of cement, 20～25 parts of polygorskites, 20～25 parts of sericites, the raw material total amount is 100 parts.
Most preferred pure inorganic sludge curing agent in parts by weight, is made up of following raw material: 55.6 parts of cement, 22.2 parts of polygorskites, 22.2 parts of sericites.
Described pure inorganic sludge curing agent incorporation in use is 10%～20% of mud quality.
The present invention compared with prior art, beneficial technical effects is:
(1) sludge curing agent of the present invention can effectively improve the optimum moisture content of mud, mud is pressed down at higher water ratio implement the worker, just have higher CBR value and the modulus of resilience, make things convenient for curing sludge to satisfy the regulation of compacting as the road filler time, the pavement performance of the curing sludge behind overcuring satisfies the requirement of " highway subgrade construction technique normalizing " (JTG F10-2006).
(2) polygorskite and the sericite in the pure inorganic sludge curing agent of the present invention can be brought into play its stronger soaking effect, in addition, the characteristic of the interaction of layer silicate mineral and performance clay mineral impels curing sludge to have antiscour and freezing and thawing performance.
(3) pure inorganic sludge curing agent of the present invention has been opened up polygorskite and sericite in the application in solidifying agent field, is used for the road filler by curing sludge, has reduced the Road construction cost, also helps the protection environment.
Embodiment
Defer to technique scheme, following embodiment provides a kind of pure inorganic sludge curing agent, in parts by weight, is made up of following raw material: 50.0～66.7 parts of cement, and 16.7～25.0 parts of polygorskites, 13.3～25.0 parts of sericites, the raw material total amount is 100 parts.
Preferred pure inorganic sludge curing agent, in parts by weight, formed by following raw material: 50～60 parts of cement, 20～25 parts of polygorskites, 20～25 parts of sericites, the raw material total amount is 100 parts.
Most preferred pure inorganic sludge curing agent in parts by weight, is made up of following raw material: 55.6 parts of cement, 22.2 parts of polygorskites, 22.2 parts of sericites.
Pure inorganic sludge curing agent is to add in the cement polygorskite powder, sericite in powder to preparation as subsidiary material and get, and cement mainly plays the effect of enhancing intensity, and polygorskite and sericite use as the precipitation material.Subsidiary material polygorskite and sericite are stratiform, and the characteristic with clay mineral, can absorb the free water that flows in the mud, have good plasticity after absorbing moisture, in the mud of certain moisture, have higher viscosity, make cement can form the gelling binder soil earth that becomes to assign to better, stop up the capillary structure of soil, thereby form intensity and stability, make mud under the situation of high-moisture percentage, be easy to the compacting construction.
Above-mentioned pure inorganic sludge curing agent incorporation in use is 10%～20% of mud quality.
Below provide specific embodiments of the invention, need to prove that the present invention is not limited to following specific embodiment, all equivalents of doing on present techniques scheme basis all fall into protection scope of the present invention.
Embodiment 1:
Present embodiment provides a kind of pure inorganic sludge curing agent, in parts by weight, is made up of following raw material: 61.5 parts of cement, 23.1 parts of polygorskites, 15.4 parts of sericites.
The preparation method of the pure inorganic sludge curing agent of present embodiment is: the proportioning according to the prescription of present embodiment is determined, take by weighing cement, polygorskite and sericite respectively, and with three's uniform mixing, namely obtain pure inorganic sludge curing agent.
The application method of the pure inorganic sludge curing agent of present embodiment during as road filler curing sludge is:
(1) precipitation punishment measure such as at first taking to ted is down to used mud water ratio below 25%;
(2) the pure inorganic solidification agent of mud of present embodiment is incorporated in the mud stirs then, can carry out the making construction of road filler, the incorporation of the pure inorganic solidification agent of mud is 13% of mud quality.
Embodiment 2:
Present embodiment provides a kind of pure inorganic sludge curing agent, in parts by weight, is made up of following raw material: 66.7 parts of cement, 20.0 parts of polygorskites, 13.3 parts of sericites.
The preparation method of the pure inorganic sludge curing agent of present embodiment is identical with embodiment 1.
The application method of the pure inorganic sludge curing agent of present embodiment during as road filler curing sludge only is that with the difference of embodiment 1 incorporation of the pure inorganic solidification agent of mud is different, and the incorporation of the pure inorganic solidification agent of mud of present embodiment is 15% of mud quality.
Embodiment 3:
Present embodiment provides a kind of pure inorganic sludge curing agent, in parts by weight, is made up of following raw material: 55.6 parts of cement, 22.2 parts of polygorskites, 22.2 parts of sericites.
The preparation method of the pure inorganic sludge curing agent of present embodiment is identical with embodiment 1.
The application method of the pure inorganic sludge curing agent of present embodiment during as road filler curing sludge only is that with the difference of embodiment 1 incorporation of the pure inorganic solidification agent of mud is different, and the incorporation of the pure inorganic solidification agent of mud of present embodiment is 18% of mud quality.
Embodiment 4:
Present embodiment provides a kind of pure inorganic sludge curing agent, in parts by weight, is made up of following raw material: 50.0 parts of cement, 25.0 parts of polygorskites, 25.0 parts of sericites.
The preparation method of the pure inorganic sludge curing agent of present embodiment is identical with embodiment 1.
The application method of the pure inorganic sludge curing agent of present embodiment during as road filler curing sludge only is that with the difference of embodiment 1 incorporation of the pure inorganic solidification agent of mud is different, and the incorporation of the pure inorganic solidification agent of mud of present embodiment is 20% of mud quality.
Embodiment 5:
Present embodiment provides a kind of pure inorganic sludge curing agent, in parts by weight, is made up of following raw material: 60.0 parts of cement, 20.0 parts of polygorskites, 20.0 parts of sericites.
The preparation method of the pure inorganic sludge curing agent of present embodiment is identical with embodiment 1.
The application method of the pure inorganic sludge curing agent of present embodiment during as road filler curing sludge only is that with the difference of embodiment 1 incorporation of the pure inorganic solidification agent of mud is different, and the incorporation of the pure inorganic solidification agent of mud of present embodiment is 10% of mud quality.
Embodiment 6:
Present embodiment provides a kind of pure inorganic sludge curing agent, in parts by weight, is made up of following raw material: 66.6 parts of cement, 16.7 parts of polygorskites, 16.7 parts of sericites.
The preparation method of the pure inorganic sludge curing agent of present embodiment is identical with embodiment 1.
The application method of the pure inorganic sludge curing agent of present embodiment during as road filler curing sludge only is that with the difference of embodiment 1 incorporation of the pure inorganic solidification agent of mud is different, and the incorporation of the pure inorganic solidification agent of mud of present embodiment is 12% of mud quality.
Embodiment 7:
Present embodiment provides a kind of pure inorganic sludge curing agent, in parts by weight, is made up of following raw material: 53.3 parts of cement, 26.7 parts of polygorskites, 20.0 parts of sericites.
The preparation method of the pure inorganic sludge curing agent of present embodiment is identical with embodiment 1.
The application method of the pure inorganic sludge curing agent of present embodiment during as road filler curing sludge only is that with the difference of embodiment 1 incorporation of the pure inorganic solidification agent of mud is different, and the incorporation of the pure inorganic solidification agent of mud of present embodiment is 17% of mud quality.
Performance test:
For verifying the sludge solidification effect of this solidifying agent, the mud to three different areas is cured processing respectively, and the overall performance of curing sludge is estimated.The basic physical index of the mud in three areas is as shown in table 1.
The basic physical index of three regional mud of table 1
Below carry out every performance test at these three kinds of mud:
One, California bearing ratio test
The pure inorganic solidification agent of mud of employing embodiment 1, embodiment 2 and embodiment 3 is cured the mud in three areas, and the mud after solidifying is carried out construction simulation as the road filler.The CBR-I type Califonia Bearing Ratio Test instrument that adopts Hebei road instrument highway Instr Ltd. to produce, according to T0134-1993 bar among " highway earthwork test rule " (JTG E40-2007) the road filler of construction simulation is carried out California bearing ratio test, the result is shown in table 2, table 3 and table 4.
Table 2 is the CBR value of regional curing sludge 1.
Table 3 is the CBR value of regional curing sludge 2.
Table 4 is the CBR value of regional curing sludge 3.
From table 2, table 3 and table 4 as can be seen, the California Bearing Ratio of the mud in three areas after mud composite curing agent of the present invention solidifies all satisfy " highway subgrade construction technique normalizing " (JTG F10-2006) to roadbed minimum intensity CBR value greater than 8% regulation, satisfy the utilisation technology standard of road filler.
Two, compression rebound modulu test
The mud of embodiment 4 to embodiment 7 adopts pure inorganic sludge curing agent that the mud in three areas is cured, and the mud after solidifying is carried out construction simulation as the road filler.Adopt the YYW-1 of Hebei rainbow space plant and instrument company limited research and development not have the confining pressure instrument, compression rebound modulu test method (end face method) according to stabilized with inorganic binder soil in " highway engineering stabilized with inorganic binder testing of materials rules " (JTG T0808-2009) is carried out, and the result is as shown in table 5.
The compression rebound modulu of three regional curing sludges of table 5
" asphalt highway design specifications " (JTG D50-2006) makes stipulations at the Stabilized Soil that is used for the road structure layer, and the soil matrix modulus of resilience should be greater than 30MPa, and heavy traffic, the very heavy traffic road soil modulus of resilience should be greater than 40MPa.As can be seen from Table 5, adopt the compression rebound modulu value of the mud test specimen that solidifying agent of the present invention solidifies higher, between 300～750MPa, all can satisfy the requirement of standard, and be in better level.
Three, antiscour test
The mud of embodiment 1 to embodiment 4 adopts pure inorganic sludge curing agent that the mud in three areas is cured, and the mud after solidifying is carried out construction simulation as the road filler.Adopt the YYW-1 of Hebei rainbow space plant and instrument company limited research and development not have the confining pressure instrument, according to " highway engineering stabilized with inorganic binder testing of materials rules " (JTG) the T0860-2009 bar road filler of construction simulation is carried out the antiscour test, the result is as shown in table 6.
Three regional curing sludges of table 6 wash away mass loss rate
As can be seen from Table 6, adopt the mud of solidifying agent processing of the present invention after washing away, mass loss is in better level between 5%～7%, have scour resistance preferably.
Four, freeze-thaw-test
The pure inorganic sludge curing agent of employing embodiment 1 to embodiment 7 is cured processing to the mud in three areas, and curing sludge is carried out construction simulation as the road filler, tests its freezing and thawing performance.Adopt the YYW-1 of Hebei rainbow space plant and instrument company limited research and development not have the confining pressure instrument, according to " highway engineering stabilized with inorganic binder testing of materials rules " (JTG) the T0858-2009 bar road filler of construction simulation is carried out the freeze-thaw-test, the result is as shown in table 7.
The freeze thawing performance of three regional curing sludges of table 7
As can be seen from Table 7, the mud that adopts solidifying agent of the present invention to handle still keeps higher residual ultimate compression strength behind freeze-thaw cycle, shows that the freezing and thawing performance of the mud of using solidifying agent processing of the present invention is better.
Claims (4)
1. a pure inorganic sludge curing agent is characterized in that, in parts by weight, is made up of following raw material: 50.0～66.7 parts of cement, and 16.7～25.0 parts of polygorskites, 13.3～25.0 parts of sericites, the raw material total amount is 100 parts.
2. pure inorganic sludge curing agent as claimed in claim 1 is characterized in that, in parts by weight, is made up of following raw material: 50～60 parts of cement, and 20～25 parts of polygorskites, 20～25 parts of sericites, the raw material total amount is 100 parts.
3. pure inorganic sludge curing agent as claimed in claim 1 is characterized in that, in parts by weight, is made up of following raw material: 55.6 parts of cement, 22.2 parts of polygorskites, 22.2 parts of sericites.
4. pure inorganic sludge curing agent as claimed in claim 1 is characterized in that, described pure inorganic sludge curing agent incorporation in use is 10%～20% of mud quality.
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| CN201310207247.6A CN103288391B (en) | 2013-05-29 | 2013-05-29 | Pure inorganic sludge curing agent |
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Cited By (9)
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| CN104058640A (en) * | 2014-01-17 | 2014-09-24 | 天津市市政工程设计研究院 | Compound sludge curing agent and application thereof |
| CN104449746A (en) * | 2014-11-06 | 2015-03-25 | 中铁一局集团有限公司 | Soil curing agent as well as use method and application thereof |
| CN105152518A (en) * | 2015-07-24 | 2015-12-16 | 合肥蓝科新材料有限公司 | Magnesia-containing sludge curing agent for preparing high-strength sludge bricks |
| CN105152519A (en) * | 2015-08-24 | 2015-12-16 | 长安大学 | Inorganic silt curing agent and preparation method thereof as well as road material |
| CN105174856A (en) * | 2015-06-29 | 2015-12-23 | 马鞍山金晟工业设计有限公司 | Silt curing agent for making silt have high plasticity |
| CN105174684A (en) * | 2015-06-29 | 2015-12-23 | 马鞍山金晟工业设计有限公司 | Carbon fiber-containing silt curing agent for anti-cracking silt brick preparation |
| CN108623233A (en) * | 2018-05-23 | 2018-10-09 | 成都恩承科技股份有限公司 | A kind of curing agent and its application for the processing of sulfonation well drilling detritus |
| CN110593036A (en) * | 2019-09-20 | 2019-12-20 | 上海市政工程设计研究总院（集团）有限公司 | Method for preparing roadbed filler by utilizing high-water-content engineering waste soil |
| CN114573305A (en) * | 2022-04-19 | 2022-06-03 | 北京工业大学 | Preparation method and application of collapsible loess curing agent |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104058640A (en) * | 2014-01-17 | 2014-09-24 | 天津市市政工程设计研究院 | Compound sludge curing agent and application thereof |
| CN104449746A (en) * | 2014-11-06 | 2015-03-25 | 中铁一局集团有限公司 | Soil curing agent as well as use method and application thereof |
| CN105174856A (en) * | 2015-06-29 | 2015-12-23 | 马鞍山金晟工业设计有限公司 | Silt curing agent for making silt have high plasticity |
| CN105174684A (en) * | 2015-06-29 | 2015-12-23 | 马鞍山金晟工业设计有限公司 | Carbon fiber-containing silt curing agent for anti-cracking silt brick preparation |
| CN105152518A (en) * | 2015-07-24 | 2015-12-16 | 合肥蓝科新材料有限公司 | Magnesia-containing sludge curing agent for preparing high-strength sludge bricks |
| CN105152519A (en) * | 2015-08-24 | 2015-12-16 | 长安大学 | Inorganic silt curing agent and preparation method thereof as well as road material |
| CN105152519B (en) * | 2015-08-24 | 2017-06-30 | 长安大学 | A kind of inorganic sludge curing agent, road-making material and preparation method thereof |
| CN108623233A (en) * | 2018-05-23 | 2018-10-09 | 成都恩承科技股份有限公司 | A kind of curing agent and its application for the processing of sulfonation well drilling detritus |
| CN110593036A (en) * | 2019-09-20 | 2019-12-20 | 上海市政工程设计研究总院（集团）有限公司 | Method for preparing roadbed filler by utilizing high-water-content engineering waste soil |
| CN114573305A (en) * | 2022-04-19 | 2022-06-03 | 北京工业大学 | Preparation method and application of collapsible loess curing agent |
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