CN108164237A - A kind of inorganic mixture containing sludge and preparation method thereof - Google Patents
A kind of inorganic mixture containing sludge and preparation method thereof Download PDFInfo
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- CN108164237A CN108164237A CN201810016614.7A CN201810016614A CN108164237A CN 108164237 A CN108164237 A CN 108164237A CN 201810016614 A CN201810016614 A CN 201810016614A CN 108164237 A CN108164237 A CN 108164237A
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/10—Lime cements or magnesium oxide cements
- C04B28/12—Hydraulic lime
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of inorganic mixture containing sludge and preparation method thereof, inorganic mixture includes following components of following portions by weight：50~80 parts of sludge recycled aggregate, 3~12 parts of lime, 5~20 parts of mountain rubble, 5~16 parts of flyash.The higher mountain rubble of cost in the prior art is replaced come part using the sludge of low cost by inorganic mixture prepared by the present invention, also sludge is turned waste into wealth while the production cost for reducing inorganic mixture, adequately protected environment.
Description
Technical field
The invention belongs to inorganic mixture manufacture fields, and in particular to a kind of containing the inorganic mixture of sludge and its preparation side
Method.
Background technology
Inorganic mixture refers to mix a certain amount of cement or lime or industry in soil in crushing or that original state is loose
The inorganic binders such as waste residue and water mix and stir to obtain mixture through being compacted with after health, and obtained compression strength meets defined material
Material.Since the rigidity that inorganic mixture is capable of stabilizing material is in flexible material (such as asphalt) and rigid material (such as water
Cement concrete) between, so also referred to as semi-rigid material, and semi-rigid layer is known as by the structure sheaf of its making.
Due to inorganic mixture it is economical it is good, stability is good, anti-freezing property is strong, strength and stiffness increase with its age
The advantages that long is the ideal material that road base is laid with.And with the rapid development of Urbanization in China, newly repair on a large scale,
Reorganization and expansion town road, the aggregate main source Yushan Hill rubble in the inorganic mixture of road base laying, these materials
Exhaustive exploitation and extraction, not only produce environment large effect, and limited natural resources is also made to face exhaustion.Therefore, it looks for
Partly it can become the technical issues of urgently to be resolved hurrily in the field instead of the raw material of mountain rubble to a kind of.
Invention content
In view of the above existing problems in the prior art, the present invention provides a kind of inorganic mixture containing sludge and its preparations
Method, by inorganic mixture prepared by the present invention, using the sludge of low cost, come part replacement, cost is higher in the prior art
Mountain rubble, reduce inorganic mixture production cost while also sludge is turned waste into wealth, adequately protected environment.
One aspect of the present invention provides a kind of inorganic mixture containing sludge, following groups including following portions by weight
Point：
50~80 parts of sludge recycled aggregate, 3~12 parts of lime, 5~20 parts of mountain rubble, 5~16 parts of flyash.
In a preferred embodiment, the control of the weight ratio of the lime and the flyash is 3:Between 3~5.
In a preferred embodiment, the maximum particle diameter of the mountain rubble is less than 25mm, and grain size successively 25~
The mass ratio of the mountain rubble between 20mm, 20~10mm, 10~5mm, 5~0mm is controlled in (10~15):(26~30):
(17~19):Between 40.
Another aspect provides a kind of inorganic mixture containing sludge, following groups including following portions by weight
Point：
50~80 parts of sludge recycled aggregate, 10~30 parts of cement, 5~20 parts of mountain rubble, 5~16 parts of flyash.
In a preferred embodiment, the maximum particle diameter of the mountain rubble is less than 25mm, and grain size successively 25~
The mass ratio of the mountain rubble between 20mm, 20~10mm, 10~5mm, 5~0mm is controlled in (13~17):(27~31):
(14~18):Between 40.
In a preferred embodiment, the cement includes portland slag cement, Portland cement, volcanic ash
One or more of matter portland cement.
In a preferred embodiment, the presetting period of the cement between 3~6h, final setting time 2~5h it
Between.
In a preferred embodiment, effective calcium-magnesium content of the sludge recycled aggregate>20%, granularity is in 25mm
Hereinafter, and its grain size below 5mm granule content>70%, moisture content 10%~20%.
It is main to include following step another aspect provides a kind of preparation method of the inorganic mixture containing sludge
Suddenly：
Desiccation is carried out by the sludge after the dehydration drying by 80~120 parts through 2~3 parts of lime to regenerate sludge is made
Aggregate after sludge recycled aggregate, mountain rubble and flyash and suitable water are mixed evenly, adds remaining ingredient continuation
Stirring, it is to be mixed stir evenly after, detection qualification to get inorganic mixture；
Wherein, described be mixed is closed, and mix capability control is in more than 500t/h using concentration plantmix.
In a preferred embodiment, after the sludge after the dehydration drying carries out desiccation by lime, by 1~2
Grade is broken, air blast removal of impurities and vibration analysis screen to obtain the sludge recycled aggregate.
A kind of inorganic mixture containing sludge provided by the invention and preparation method thereof is compared with prior art, beneficial to imitate
Fruit is：
(1) composition of raw materials of inorganic mixture of the invention, carrys out the existing skill of partial replacement by using sludge recycled aggregate
The higher mountain rubble of cost in art, reduces production cost；
(2) present invention can largely consume sludge, solve the problems, such as sludge treatment, it is therefore prevented that secondary pollution, and then protect
Environment；
(3) inorganic mixture that the present invention is prepared by sludge recycled aggregate and lime/cement, mountain rubble, flyash, tool
There are good mechanics and endurance quality, two level and the application requirement with underlayment of getting down the highway can be met；
(4) preparation method provided by the invention has the advantages that the effective ingredient that can completely retain raw material, and with side
The advantages that method is simple easily operated, operating condition is mild.
Specific embodiment
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and is not construed as limiting the scope of the invention.It is not specified in embodiment specific
Condition person, the condition suggested according to normal condition or manufacturer carry out.Reagents or instruments used without specified manufacturer is
The conventional products that can be obtained by commercially available purchase.
An aspect of of the present present invention is related to a kind of inorganic mixture containing sludge, following groups including following portions by weight
Point：50~80 parts of sludge recycled aggregate, 3~12 parts of lime, 5~20 parts of mountain rubble, 5~16 parts of flyash；These components mix
One kind in inorganic mixture, as inorganic material are formed after preparation.
Another aspect of the present invention relates to a kind of inorganic mixture containing sludge, following groups including following portions by weight
Point：50~80 parts of sludge recycled aggregate, 10~30 parts of cement, 5~20 parts of mountain rubble, 5~16 parts of flyash；These components mix
One kind in inorganic mixture is formed after preparation, as cement stabilized macadam, abbreviation water is steady.
<Sludge recycled aggregate>
Effective calcium-magnesium content of the sludge recycled aggregate of the present invention>20%, granularity in 25mm hereinafter, and its grain size exist
The granule content of below 5mm>70%, moisture content 10%~20%.Sludge recycled aggregate is by part fines and part coarse fodder
It is mixed, i.e., grain size is sludge recycled fine aggregate in the particle of below 5mm, and grain size is dirt in the particle of more than 5mm
Mud regenerated coarse aggregate by the mixed preparing of fine aggregate and coarse aggregate, can also be protected while the water penetration for ensureing inorganic material
The mechanical performance of inorganic material is demonstrate,proved.Certainly mass ratio between the two is that inventor is subject to determining, control by a large amount of experiment
System is in suitable range so that performance reaches best while cost is fully reduced.
Due to containing a large amount of not deactivated available lime component (free calcium oxide, trips completely in sludge recycled aggregate
From magnesia), therefore part mountain rubble can be not only replaced as inorganic mixture by the use of sludge regeneration bone meal in the present invention
Key component, and due to its also active principle containing lime can improve lime in this inorganic mixture shared by reality
Number ratio, and then be effectively increased the mechanical strength of inorganic mixture.
In a preferred embodiment of the invention, the control of the weight ratio of lime and flyash is 3:Between 3~5, by
It is relatively high in the number ratio of lime added of the present invention, therefore the inorganic material finally obtained has good mechanics and durable
Performance can meet two level and the application requirement with underlayment of getting down the highway.
The flyash that the present invention can use includes a variety of sources, can use level-one or two level fine coal that thermal power plant generates
Ash.
<Mountain rubble>
The present invention mountain rubble maximum particle diameter be less than 25mm, and grain size successively 25~20mm, 20~10mm, 10~
The mass ratio of mountain rubble between 5mm, 5~0mm is controlled in (10~15):(26~30):(17~19):Between 40, different grains
The mixed preparing of the mountain rubble of diameter while the water penetration for ensureing inorganic material, can also ensure the mechanical performance of inorganic material.
Certainly it is determining to be that inventor is subject to by a large amount of experiment for mass ratio between the two, controls in suitable range abundant
So that performance reaches best while reducing cost.
In another preferred embodiment of the present invention, the maximum particle diameter of mountain rubble is less than 25mm, and grain size is successively 25
The mass ratio of the mountain rubble between~20mm, 20~10mm, 10~5mm, 5~0mm is controlled in (13~17):(27~
31):(14~18):Between 40.The mixed preparing of the mountain rubble of different-grain diameter, can be in the water penetration for ensureing cement stabilized macadam
While, also ensure the mechanical performance of cement stabilized macadam.Certainly mass ratio between the two is inventor by a large amount of
Experiment is subject to determining, controls in suitable range while cost is fully reduced so that performance reaches best.
<Cement>
In the inorganic mixture of the present invention, the parts by weight of cement are 10~30 parts, and cement includes slag silicate brine
One or more of mud, Portland cement, Portland pozzolana cement.
In one embodiment of the invention, the presetting period of cement between 3~6h, final setting time 2~5h it
Between.
Another aspect of the present invention is related to a kind of preparation method of the inorganic mixture containing sludge, mainly includes as follows
Step：
Desiccation is carried out by the sludge after the dehydration drying by 80~120 parts through 2~3 parts of lime to regenerate sludge is made
Aggregate after sludge recycled aggregate, mountain rubble and flyash and suitable water are mixed evenly, adds remaining ingredient continuation
Stirring, it is to be mixed stir evenly after, detection qualification to get inorganic mixture.
In one embodiment of the invention, after the sludge after dehydration drying carries out desiccation by lime, by 1~2
Grade is broken, air blast removal of impurities and vibration analysis screen to obtain sludge recycled aggregate.
In one embodiment of the invention, it is mixed and is closed, and mix capability control is in 500t/ using concentration plantmix
More than h.
A kind of inorganic mixture containing sludge provided by the invention and preparation method thereof is prepared inorganic mixed by the present invention
It closes material and the higher mountain rubble of cost in the prior art is replaced come part using the sludge of low cost, reducing inorganic mixture
Also sludge is turned waste into wealth while production cost, adequately protected environment.
The present invention is more clearly illustrated by following embodiment.It should be understood that following embodiment only plays the purposes of explanation, and
The scope of the present invention is not imposed any restrictions.
Embodiment 1
The present embodiment relates in one aspect to a kind of inorganic mixture containing sludge, following components including following portions by weight：
50 parts of sludge recycled aggregate, 10 parts of lime, 15 parts of mountain rubble, 10 parts of flyash.
Preferably, effective calcium-magnesium content of sludge recycled aggregate>20%, granularity in 25mm hereinafter, and
Its grain size is 70% in the granule content of below 5mm, moisture content 10%~20%.
Preferably, the control of the weight ratio of lime and flyash is 1:1.
Preferably, the maximum particle diameter of mountain rubble be less than 25mm, and grain size successively 25~20mm, 20~
The mass ratio control of mountain rubble between 10mm, 10~5mm, 5~0mm is 15:28:19:40.
On the other hand the present embodiment is related to a kind of preparation method of the inorganic mixture containing sludge, main to include following step
Suddenly：
Desiccation is carried out sludge recycled aggregate is made through 2 parts of lime by the sludge after the dehydration drying by 80 parts, it will
After 50 parts of sludge recycled aggregate, 15 parts of mountain rubble and 10 parts of flyash are mixed evenly with suitable water, add
10 parts of lime continues to stir, it is to be mixed stir evenly after, detection qualification to get inorganic mixture, wherein, be mixed use
Plantmix is concentrated to close, and mix capability control is in more than 500t/h.
Preferably, after the sludge after dehydration drying carries out desiccation by lime, by 1~2 grade of broken, drum
Wind cleans and vibration analysis screens to obtain sludge recycled aggregate.
In inorganic mixture provided in this embodiment, physical performance index is as follows after testing：
Maximum dry density is 2238kg/m3, and optimum moisture content 8%, 7d unconfined compressive strengths are 1.4MPa, so through
Inorganic mixture prepared by embodiment 1 during for ground subsoil layer, meets relevant technology requirement.
Embodiment 2
The present embodiment relates in one aspect to a kind of inorganic mixture containing sludge, following components including following portions by weight：
80 parts of sludge recycled aggregate, 12 parts of lime, 5 parts of mountain rubble, 16 parts of flyash.
Preferably, effective calcium-magnesium content of sludge recycled aggregate>20%, granularity in 25mm hereinafter, and
Its grain size is 75% in the granule content of below 5mm, moisture content 10%~20%.
Preferably, the control of the weight ratio of lime and flyash is 3:4.
Preferably, the maximum particle diameter of mountain rubble be less than 25mm, and grain size successively 25~20mm, 20~
The mass ratio control of mountain rubble between 10mm, 10~5mm, 5~0mm is 10:26:17:40.
Another aspect of the present invention is related to a kind of preparation method of the inorganic mixture containing sludge, mainly includes the following steps：
Desiccation is carried out sludge recycled aggregate is made through 2.5 parts of lime by the sludge after the dehydration drying by 100 parts,
After 80 parts of sludge recycled aggregate, 12 parts of mountain rubble and 5 parts of flyash and suitable water are mixed evenly, add
16 parts of lime continues to stir, it is to be mixed stir evenly after, detection qualification to get inorganic mixture, wherein, be mixed use
Plantmix is concentrated to close, and mix capability control is in more than 500t/h.
Preferably, after the sludge after dehydration drying carries out desiccation by lime, by 1~2 grade of broken, drum
Wind cleans and vibration analysis screens to obtain sludge recycled aggregate.
In inorganic mixture provided in this embodiment, physical performance index is as follows after testing：
Maximum dry density is 2171kg/m3, and optimum moisture content 6.8%, 7d unconfined compressive strengths are 0.8MPa, so
The inorganic mixture prepared through embodiment 2 during for ground subsoil layer, meets relevant technology requirement.
Embodiment 3
One aspect of the present invention is related to a kind of inorganic mixture containing sludge, following components including following portions by weight：It is dirty
70 parts of mud recycled aggregate, 3 parts of lime, 20 parts of mountain rubble, 5 parts of flyash.
Preferably, effective calcium-magnesium content of sludge recycled aggregate>20%, granularity in 25mm hereinafter, and
Its grain size is 73% in the granule content of below 5mm, moisture content 10%~20%.
Preferably, the control of the weight ratio of lime and flyash is 3:5.
Preferably, the maximum particle diameter of mountain rubble be less than 25mm, and grain size successively 25~20mm, 20~
The mass ratio of mountain rubble between 10mm, 10~5mm, 5~0mm is controlled 12:30:18:Between 40.
Another aspect of the present invention is related to a kind of preparation method of the inorganic mixture containing sludge, mainly includes the following steps：
Desiccation is carried out sludge recycled aggregate is made through 3 parts of lime by the sludge after the dehydration drying by 120 parts, it will
After 70 parts of sludge recycled aggregate, 20 parts of mountain rubble and 5 parts of flyash are mixed evenly with suitable water, 3 are added
Part lime continue to stir, it is to be mixed stir evenly after, detection qualification to get inorganic mixture, wherein, be mixed using collection
Middle plantmix closes, and mix capability control is in more than 500t/h..
Preferably, after the sludge after dehydration drying carries out desiccation by lime, by 1~2 grade of broken, drum
Wind cleans and vibration analysis screens to obtain sludge recycled aggregate.
In inorganic mixture provided in this embodiment, physical performance index is as follows after testing：
Maximum dry density is 2208kg/m3, and optimum moisture content 9.5%, 7d unconfined compressive strengths are 1.2MPa, so
The inorganic mixture prepared through embodiment 3 during for ground subsoil layer, meets relevant technology requirement.
Embodiment 4
The present embodiment relates in one aspect to a kind of inorganic mixture containing sludge, following components including following portions by weight：
50 parts of sludge recycled aggregate, 30 parts of cement, 20 parts of mountain rubble, 10 parts of flyash.
Preferably, effective calcium-magnesium content of sludge recycled aggregate>20%, granularity in 25mm hereinafter, and
Its grain size is 85% in the granule content of below 5mm, moisture content 10%~20%.
Preferably, the maximum particle diameter of mountain rubble be less than 25mm, and grain size successively 25~20mm, 20~
The mass ratio control of mountain rubble between 10mm, 10~5mm, 5~0mm is 13:29:18:Between 40.
Preferably, cement includes portland slag cement, Portland cement, portland-pozzolana
One or more of cement.
Preferably, the presetting period of cement is 3h, final setting time 4h.
Another aspect of the present invention is related to a kind of preparation method of the inorganic mixture containing sludge, mainly includes the following steps：
Desiccation is carried out sludge recycled aggregate is made through 3 parts of lime by the sludge after the dehydration drying by 120 parts, it will
After 50 parts of sludge recycled aggregates, 20 parts of mountain rubbles and 10 parts of flyash are mixed evenly with suitable water, 30 parts of water are added
Mud continues to stir, it is to be mixed stir evenly after, detection qualification to get inorganic mixture, wherein, be mixed using concentrate plantmix
It closes, and mix capability control is in more than 500t/h.
Preferably, after the sludge after dehydration drying carries out desiccation by lime, by 1~2 grade of broken, drum
Wind cleans and vibration analysis screens to obtain sludge recycled aggregate.
In inorganic mixture provided in this embodiment, physical performance index is as follows after testing：
Maximum dry density is 2135kg/m3, and optimum moisture content 6.5%, 7d unconfined compressive strengths are 0.9MPa, so
The inorganic mixture prepared through embodiment 4 during for ground subsoil layer, meets relevant technology requirement.
Embodiment 5
The present embodiment relates in one aspect to a kind of inorganic mixture containing sludge, following components including following portions by weight：
80 parts of sludge recycled aggregate, 10 parts of cement, 5 parts of mountain rubble, 5 parts of flyash.
Preferably, effective calcium-magnesium content of sludge recycled aggregate>20%, granularity in 25mm hereinafter, and
Its grain size is 76% in the granule content of below 5mm, moisture content 10%~20%.
Preferably, the maximum particle diameter of mountain rubble be less than 25mm, and grain size successively 25~20mm, 20~
The mass ratio control of mountain rubble between 10mm, 10~5mm, 5~0mm is 17:27:16:40.
Preferably, cement includes portland slag cement, Portland cement, portland-pozzolana
One or more of cement.
Preferably, the presetting period of cement, final setting time was between 2h between 6h.
Another aspect of the present invention is related to a kind of preparation method of the inorganic mixture containing sludge, mainly includes the following steps：
Desiccation is carried out sludge recycled aggregate is made through 2 parts of lime by the sludge after the dehydration drying by 80 parts, it will
After 80 parts of sludge recycled aggregate, 5 parts of mountain rubble and 5 parts of flyash are mixed evenly with suitable water, 10 are added
Part cement continue to stir, it is to be mixed stir evenly after, detection qualification to get inorganic mixture, wherein, be mixed using collection
Middle plantmix closes, and mix capability control is in more than 500t/h..
Preferably, after the sludge after dehydration drying carries out desiccation by lime, by 1~2 grade of broken, drum
Wind cleans and vibration analysis screens to obtain sludge recycled aggregate.
In inorganic mixture provided in this embodiment, physical performance index is as follows after testing：
Maximum dry density is 2338kg/m3, and optimum moisture content 9.1%, 7d unconfined compressive strengths are 1.3MPa, so
The inorganic mixture prepared through embodiment 5 during for ground subsoil layer, meets relevant technology requirement.
Embodiment 6
The present embodiment relates in one aspect to a kind of inorganic mixture containing sludge, following components including following portions by weight：
70 parts of sludge recycled aggregate, 20 parts of cement, 15 parts of mountain rubble, 16 parts of flyash.
Preferably, effective calcium-magnesium content of sludge recycled aggregate>20%, granularity in 25mm hereinafter, and
Its grain size is 72% in the granule content of below 5mm, moisture content 10%~20%.
Preferably, the maximum particle diameter of mountain rubble be less than 25mm, and grain size successively 25~20mm, 20~
The mass ratio control of mountain rubble between 10mm, 10~5mm, 5~0mm is 15:31:14:40.
Preferably, cement includes portland slag cement, Portland cement, portland-pozzolana
One or more of cement.
Preferably, the presetting period of cement, final setting time was between 5h between 5h.
Another aspect of the present invention is related to a kind of preparation method of the inorganic mixture containing sludge, mainly includes the following steps：
Desiccation is carried out sludge recycled aggregate is made through 2.5 parts of lime by the sludge after the dehydration drying by 100 parts,
After 70 parts of sludge recycled aggregate, 15 parts of mountain rubble and 16 parts of flyash and suitable water are mixed evenly, then add
Enter 20 parts of cement to continue to stir, it is to be mixed stir evenly after, detection qualification to get inorganic mixture, wherein, mixing is adopted
It is closed, and mix capability control is in more than 500t/h with plantmix is concentrated.
Preferably, after the sludge after dehydration drying carries out desiccation by lime, by 1~2 grade of broken, drum
Wind cleans and vibration analysis screens to obtain sludge recycled aggregate.
In inorganic mixture provided in this embodiment, physical performance index is as follows after testing：
Maximum dry density is 2148kg/m3, and optimum moisture content 6.5%, 7d unconfined compressive strengths are 1.1MPa, so
The inorganic mixture prepared through embodiment 6 during for ground subsoil layer, meets relevant technology requirement.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (10)
- A kind of 1. inorganic mixture containing sludge, which is characterized in that following components including following portions by weight：50~80 parts of sludge recycled aggregate, 3~12 parts of lime, 5~20 parts of mountain rubble, 5~16 parts of flyash.
- 2. a kind of inorganic mixture containing sludge according to claim 1, which is characterized in that the lime and the fine coal The weight ratio of ash is controlled 3:Between 3~5.
- A kind of 3. inorganic mixture containing sludge according to claim 1, which is characterized in that the maximum grain of the mountain rubble Diameter is less than 25mm, and the quality of the grain size mountain rubble between 25~20mm, 20~10mm, 10~5mm, 5~0mm successively Than controlling in (10~15):(26~30):(17~19):Between 40.
- A kind of 4. inorganic mixture containing sludge, which is characterized in that following components including following portions by weight：50~80 parts of sludge recycled aggregate, 10~30 parts of cement, 5~20 parts of mountain rubble, 5~16 parts of flyash.
- A kind of 5. inorganic mixture containing sludge according to claim 4, which is characterized in that the maximum grain of the mountain rubble Diameter is less than 25mm, and the quality of the grain size mountain rubble between 25~20mm, 20~10mm, 10~5mm, 5~0mm successively Than controlling in (13~17):(27~31):(14~18):Between 40.
- 6. a kind of inorganic mixture containing sludge according to claim 4, which is characterized in that the cement includes slag silicon One or more of acid salt cement, Portland cement, Portland pozzolana cement.
- A kind of 7. inorganic mixture containing sludge according to claim 4, which is characterized in that the presetting period of the cement Between 3~6h, final setting time is between 2~5h.
- A kind of 8. inorganic mixture containing sludge according to any one of claims 1 to 7, which is characterized in that the sludge Effective calcium-magnesium content of recycled aggregate>20%, granularity in 25mm hereinafter, and its grain size below 5mm granule content> 70%, moisture content 10%~20%.
- 9. a kind of preparation method of the inorganic mixture containing sludge of claim 1 to 8 any one of them, which is characterized in that main Include the following steps：Desiccation is carried out sludge Regenerated Bone is made through 2~3 parts of lime by the sludge after the dehydration drying by 80~120 parts Material after sludge recycled aggregate, mountain rubble and flyash and suitable water are mixed evenly, add remaining ingredient and continues to stir Mix, it is to be mixed stir evenly after, detection qualification to get inorganic mixture；Wherein, described be mixed is closed, and mix capability control is in more than 500t/h using concentration plantmix.
- 10. the preparation method of a kind of inorganic mixture containing sludge according to claim 9, which is characterized in that described de- After sludge after water drying carries out desiccation by lime, screen to obtain institute by 1~2 grade of broken, air blast removal of impurities and vibration analysis State sludge recycled aggregate.
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| Publication number | Priority date | Publication date | Assignee | Title |
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