CN109896806A - A kind of mill tailings gravity flowing levelling mortar and preparation method thereof - Google Patents

A kind of mill tailings gravity flowing levelling mortar and preparation method thereof Download PDF

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Publication number
CN109896806A
CN109896806A CN201910309738.9A CN201910309738A CN109896806A CN 109896806 A CN109896806 A CN 109896806A CN 201910309738 A CN201910309738 A CN 201910309738A CN 109896806 A CN109896806 A CN 109896806A
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Prior art keywords
parts
water
tailing
mill tailings
agent
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CN201910309738.9A
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Chinese (zh)
Inventor
张远韬
康钦杰
谢应捷
王龙辉
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Guangdong Zhongren Geotechnical Engineering Co Ltd
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Guangdong Zhongren Geotechnical Engineering Co Ltd
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Priority to CN201910309738.9A priority Critical patent/CN109896806A/en
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Abstract

The present invention relates to building material technical fields, and disclose a kind of mill tailings gravity flowing levelling mortar, including portland cement, sulphur aluminum water mud, silicon ash, bentonite, mill tailings, redispersable latex powder, levelling agent, water-reducing agent, defoaming agent, starch ether, sodium citrate and water, described portland cement 10-15 parts;15-20 parts of sulphur aluminum water mud;2-3 parts of silicon ash;1-2 parts of bentonite;10-12 parts of mill tailings;1-2 parts of redispersable latex powder;2-3 parts of levelling agent;0.1-0.5 parts of water-reducing agent;0.2-0.3 parts of defoaming agent;0.1-0.2 parts of starch ether;0.1-0.2 parts and water 7-10 parts of sodium citrate, the mill tailings is golden tailing, iron ore mine, nickel minerals tailing, copper mining tailing and granite tailing etc..The present invention is selected aggregate by using mill tailings, has reached the processing to mill tailings, has saved resource, while having alleviated the pollution to environment, with good caking property, smooth, not hollowing and the low performance of shrinkage, and is had easy to operate.

Description

A kind of mill tailings gravity flowing levelling mortar and preparation method thereof
Technical field
The present invention relates to building material technical field, specially a kind of mill tailings gravity flowing levelling mortar and preparation method thereof.
Background technique
Gravity flowing levelling mortar includes cement-based self-leveling/gravity flowing levelling mortar/leveling mortar etc., high in technological content, technology ring Save more complicated product.The dry-mixed type pulverulent material that it is made of a variety of active ingredients, scene are mixed water and be can be used.Slightly It is unfolded through scraper, can be obtained high flat surfaces.Setting rate is fast, 24 hours can be in upper walking, or carries out successive projects (such as paving timber floor, adamantine plate), quick construction, simplicity are traditional artificial levelling incomparable.Gravity flowing levelling mortar be by Special cement, selected aggregate and multiple additives composition, form that a kind of mobility is strong, the Self-leveling of high-ductility after mixing with water Foundation material.Suitable for smart levelling and all pavements of mattess, it is widely used in civil and commercial building.
Since the selected aggregate in gravity flowing levelling mortar mainly uses normal sand, and the exploitation of normal sand will cause nature life The destruction of state, stock number demand is big, and China's ore resource is abundant, and during mining, accumulating over a long period, it is big to produce Mine discarded tailing is measured, and the processing cost of a large amount of mines discarded tailing is high, difficulty is big, puts for a long time so as to cause ore tailing It sets to cause the waste of resource.
Summary of the invention
(1) the technical issues of solving
In order to solve the above problem of the prior art, the present invention provides a kind of mill tailings gravity flowing levelling mortar and its preparation Method, the exploitation for solving normal sand will cause the destruction of natural ecology, and stock number demand is big, while mine discarded tailing Processing cost is high, and difficulty is big, places the problem of causing the waste of resource for a long time so as to cause ore tailing.
(2) technical solution
In order to achieve the above object, the main technical schemes that the present invention uses include:
A kind of mill tailings gravity flowing levelling mortar, including portland cement, sulphur aluminum water mud, silicon ash, bentonite, mill tailings, Redispersable latex powder, levelling agent, water-reducing agent, defoaming agent, starch ether, sodium citrate and water, the portland cement 10-15 Part;15-20 parts of sulphur aluminum water mud;2-3 parts of silicon ash;1-2 parts of bentonite;10-12 parts of mill tailings;Redispersable latex powder 1-2 Part;2-3 parts of levelling agent;0.1-0.5 parts of water-reducing agent;0.2-0.3 parts of defoaming agent;0.1-0.2 parts of starch ether;Sodium citrate 0.1- 0.2 part and water 7-10 parts.
Preferably, the mill tailings is golden tailing, iron ore mine, nickel minerals tailing, copper mining tailing and granite tailing Deng.
Preferably, the levelling agent includes dodecafluoroheptyl methacrylate, perfluor alkyl ethyl acrylate, the third two Alcohol methyl ether acetate, solvent and azodiisobutyronitrile, the dodecafluoroheptyl methacrylate, perfluor alkyl ethide acrylic acid Ester, propylene glycol methyl ether acetate and solvent are 1:1.5:2:230 according to the ratio of molar ratio.
Preferably, the preparation method of the mill tailings gravity flowing levelling mortar, includes the following steps,
S1, the preparation of levelling agent: by dodecafluoroheptyl methacrylate, perfluor alkyl ethyl acrylate and propylene glycol Methyl ether acetate is put into container, is sufficiently stirred after solvent is added, dodecafluoroheptyl methacrylate, perfluoroalkyl second Base acrylate, propylene glycol methyl ether acetate and solvent form mixed liquor according to molar ratio 1:1.5:2:230 after mixing, Azodiisobutyronitrile is added dropwise into mixed liquor, carries out vacuum outgas later, reaction temperature is set in 60-65 under nitrogen protection ℃;Reaction 30-50 minutes, is cooled to room temperature later, and stands 1 hour, to obtain final levelling agent;
S2, the screening of ore tailing: being put into layering screen for mill tailings and sort, by screening obtain 30-60 mesh, The mine tailing of 60-80 mesh, 3 class hierarchy of 80-120 mesh is carried out obtaining preparing tailing after mixed class is matched in the ratio of 1:2:1;
S3, the production of gravity flowing levelling mortar: weighing 10-15 parts of portland cement first, 15-20 parts of sulphur aluminum water mud, silicon ash 2- 3 parts, 1-2 parts of bentonite, tailing 10-12 parts of preparation, 1-2 parts of redispersable latex powder, 2-3 parts of levelling agent, water-reducing agent 0.1- It 0.5 part, 0.2-0.3 parts of defoaming agent, 0.1-0.2 parts of starch ether, 0.1-0.2 parts and water 7-10 parts of sodium citrate, will be to improve quality Part feedstock silicate cement, sulphur aluminum water mud, silicon ash, bentonite are added in blender, are stirred 2 minutes, add levelling agent and Water stirs 4-8 minutes, is then added and prepares tailing and redispersable latex powder, stir evenly, be eventually adding water-reducing agent, disappear Infusion, starch ether and sodium citrate after evenly mixing, to obtain gravity flowing levelling mortar.
Preferably, the molar ratio ratio of the propylene glycol methyl ether acetate and azodiisobutyronitrile is 4:1.
(3) beneficial effect
The present invention provides a kind of mill tailings gravity flowing levelling mortars.Have it is following the utility model has the advantages that
The mill tailings gravity flowing levelling mortar is selected aggregate by using mill tailings, has reached the place to mill tailings Reason, has saved resource, while alleviating the pollution to environment, and with good caking property, smooth, hollowing and shrinkage be not low Performance, and have it is easy to operate.
Specific embodiment
Technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only It is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field Art personnel every other embodiment obtained without making creative work belongs to the model that the present invention protects It encloses.
Embodiment 1
A kind of mill tailings gravity flowing levelling mortar, including portland cement, sulphur aluminum water mud, silicon ash, bentonite, mill tailings, Redispersable latex powder, levelling agent, water-reducing agent, defoaming agent, starch ether, sodium citrate and water, 10 parts of the portland cement; 15 parts of sulphur aluminum water mud;2 parts of silicon ash;1 part of bentonite;10 parts of mill tailings;1 part of redispersable latex powder;2 parts of levelling agent;Diminishing 0.1 part of agent;0.2 part of defoaming agent;0.1 part of starch ether;0.1 part of sodium citrate;7 parts of water, mill tailings is golden tailing or iron ore tail Mine, levelling agent include dodecafluoroheptyl methacrylate, perfluor alkyl ethyl acrylate, propylene glycol methyl ether acetate, solvent And azodiisobutyronitrile, the dodecafluoroheptyl methacrylate, perfluor alkyl ethyl acrylate, propylene glycol monomethyl ether acetic acid Ester and solvent are 1:1.5:2:230, the molar ratio of propylene glycol methyl ether acetate and azodiisobutyronitrile according to the ratio of molar ratio Ratio is 4:1.
A kind of preparation method of mill tailings gravity flowing levelling mortar, includes the following steps,
S1, the preparation of levelling agent: by dodecafluoroheptyl methacrylate, perfluor alkyl ethyl acrylate and propylene glycol Methyl ether acetate is put into container, is sufficiently stirred after solvent is added, dodecafluoroheptyl methacrylate, perfluoroalkyl second Base acrylate, propylene glycol methyl ether acetate and solvent form mixed liquor according to molar ratio 1:1.5:2:230 after mixing, Azodiisobutyronitrile is added dropwise into mixed liquor, carries out vacuum outgas later, reaction temperature is set in 60-65 under nitrogen protection ℃;Reaction 30-50 minutes, is cooled to room temperature later, and stands 1 hour, to obtain final levelling agent;
S2, the screening of ore tailing: being put into layering screen for golden tailing or iron ore mine and sort, and obtains by screening 30-60 mesh, 60-80 mesh, 3 class hierarchy of 80-120 mesh mine tailing, in 1:2:1 ratio carry out mixed class match after prepared Tailing;
S3, the production of gravity flowing levelling mortar: weighing 10 parts of portland cement first, 15 parts of sulphur aluminum water mud, and 2 parts of silicon ash, swelling 1 part of soil, 10 parts of tailing of preparation, 1 part of redispersable latex powder, 2 parts of levelling agent, 0.1 part of water-reducing agent, 0.2 part of defoaming agent, starch 0.1 part of ether, 0.1 part and 7 parts of water of sodium citrate, by the above mass parts feedstock silicate cement, sulphur aluminum water mud, silicon ash, bentonite It is added in blender, stirs 2 minutes, add levelling agent and water, stir 4-8 minutes, then addition prepares tailing and can be again Dispersed latex powder stirs evenly, and is eventually adding water-reducing agent, defoaming agent, starch ether and sodium citrate after evenly mixing, to obtain Obtain gravity flowing levelling mortar.
Embodiment 2
A kind of mill tailings gravity flowing levelling mortar, including portland cement, sulphur aluminum water mud, silicon ash, bentonite, mill tailings, Redispersable latex powder, levelling agent, water-reducing agent, defoaming agent, starch ether, sodium citrate and water, 12 parts of the portland cement; 18 parts of sulphur aluminum water mud;2.5 parts of silicon ash;1.5 parts of bentonite;11 parts of mill tailings;1.5 parts of redispersable latex powder;Levelling agent 2.5 part;0.3 part of water-reducing agent;0.2 part of defoaming agent;0.1 part of starch ether;0.1 part and 8 parts of water of sodium citrate, mill tailings is nickel Mine tailing or copper mining tailing, levelling agent include dodecafluoroheptyl methacrylate, perfluor alkyl ethyl acrylate, propylene glycol Methyl ether acetate, solvent and azodiisobutyronitrile, the dodecafluoroheptyl methacrylate, perfluor alkyl ethyl acrylate, Propylene glycol methyl ether acetate and solvent are 1:1.5:2:230, propylene glycol methyl ether acetate and azo two according to the ratio of molar ratio The molar ratio ratio of isobutyronitrile is 4:1.
A kind of preparation method of mill tailings gravity flowing levelling mortar, includes the following steps,
S1, the preparation of levelling agent: by dodecafluoroheptyl methacrylate, perfluor alkyl ethyl acrylate and propylene glycol Methyl ether acetate is put into container, is sufficiently stirred after solvent is added, dodecafluoroheptyl methacrylate, perfluoroalkyl second Base acrylate, propylene glycol methyl ether acetate and solvent form mixed liquor according to molar ratio 1:1.5:2:230 after mixing, Azodiisobutyronitrile is added dropwise into mixed liquor, carries out vacuum outgas later, reaction temperature is set in 60-65 under nitrogen protection ℃;Reaction 30-50 minutes, is cooled to room temperature later, and stands 1 hour, to obtain final levelling agent;
The screening of ore tailing: nickel minerals tailing or copper mining tailing are put into layering screen and sorted, obtained by screening by S2 The mine tailing for obtaining 30-60 mesh, 60-80 mesh, 3 class hierarchy of 80-120 mesh matched after mixed class is matched in the ratio of 1:2:1 Tailing processed;
The production of gravity flowing levelling mortar: S3 weighs 12 parts of portland cement first;18 parts of sulphur aluminum water mud;2.5 parts of silicon ash;It is swollen 1.5 parts of profit soil;11 parts of mill tailings;1.5 parts of redispersable latex powder;2.5 parts of levelling agent;0.3 part of water-reducing agent;Defoaming agent 0.2 Part;0.1 part of starch ether;0.1 part and 8 parts of water of sodium citrate, by the above mass parts feedstock silicate cement, sulphur aluminum water mud, silicon Ash, bentonite are added in blender, are stirred 2 minutes, and levelling agent and water are added, and are stirred 4-8 minutes, are then added and prepare Tailing and redispersable latex powder, stir evenly, and are eventually adding water-reducing agent, defoaming agent, and starch ether and sodium citrate uniformly mix Afterwards, to obtain gravity flowing levelling mortar.
Embodiment 3
A kind of mill tailings gravity flowing levelling mortar, including portland cement, sulphur aluminum water mud, silicon ash, bentonite, mill tailings, Redispersable latex powder, levelling agent, water-reducing agent, defoaming agent, starch ether, sodium citrate and water, 15 parts of the portland cement; 20 parts of sulphur aluminum water mud;3 parts of silicon ash;2 parts of bentonite;12 parts of mill tailings;2 parts of redispersable latex powder;3 parts of levelling agent;Diminishing 0.5 part of agent;0.3 part of defoaming agent;0.2 part of starch ether;0.2 part and 10 parts of water of sodium citrate, mill tailings is nickel minerals tailing, copper Mine tailing or granite tailing, levelling agent include dodecafluoroheptyl methacrylate, perfluor alkyl ethyl acrylate, the third two Alcohol methyl ether acetate, solvent and azodiisobutyronitrile, the dodecafluoroheptyl methacrylate, perfluor alkyl ethide acrylic acid Ester, propylene glycol methyl ether acetate and solvent are 1:1.5:2:230, propylene glycol methyl ether acetate and idol according to the ratio of molar ratio The molar ratio ratio of nitrogen bis-isobutyronitrile is 4:1.
A kind of preparation method of mill tailings gravity flowing levelling mortar, includes the following steps,
S1, the preparation of levelling agent: by dodecafluoroheptyl methacrylate, perfluor alkyl ethyl acrylate and propylene glycol Methyl ether acetate is put into container, is sufficiently stirred after solvent is added, dodecafluoroheptyl methacrylate, perfluoroalkyl second Base acrylate, propylene glycol methyl ether acetate and solvent form mixed liquor according to molar ratio 1:1.5:2:230 after mixing, Azodiisobutyronitrile is added dropwise into mixed liquor, carries out vacuum outgas later, reaction temperature is set in 60-65 under nitrogen protection ℃;Reaction 30-50 minutes, is cooled to room temperature later, and stands 1 hour, to obtain final levelling agent;
The screening of ore tailing: nickel minerals tailing or copper mining tailing are put into layering screen and sorted, obtained by screening by S2 The mine tailing for obtaining 30-60 mesh, 60-80 mesh, 3 class hierarchy of 80-120 mesh matched after mixed class is matched in the ratio of 1:2:1 Tailing processed;
The production of gravity flowing levelling mortar: S3 weighs 15 parts of portland cement first;20 parts of sulphur aluminum water mud;3 parts of silicon ash;Swelling 2 parts of soil;12 parts of mill tailings;2 parts of redispersable latex powder;3 parts of levelling agent;0.5 part of water-reducing agent;0.3 part of defoaming agent;Starch 0.2 part of ether;0.2 part and 10 parts of water of sodium citrate, by the above mass parts feedstock silicate cement, sulphur aluminum water mud, silicon ash, swelling Soil is added in blender, is stirred 2 minutes, and levelling agent and water are added, and is stirred 4-8 minutes, then addition prepares tailing and can Redisperse latex powder, stirs evenly, and is eventually adding water-reducing agent, defoaming agent, starch ether and sodium citrate after evenly mixing, thus Obtain gravity flowing levelling mortar.
It can to sum up obtain, the mill tailings gravity flowing levelling mortar, be selected aggregate by using mill tailings, reached to mine Resource has been saved in the processing of mountain tailing, while alleviating the pollution to environment, has good caking property, smooth, not hollowing The performance low with shrinkage, and have easy to operate.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, without necessarily requiring or implying between these entities or operation There are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to Cover non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence " including a reference structure ", It is not precluded in the process, method, article or apparatus that includes the element that there is also other identical elements.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is defined by the appended.

Claims (5)

1. a kind of mill tailings gravity flowing levelling mortar, including portland cement, sulphur aluminum water mud, silicon ash, bentonite, mill tailings, can Redisperse latex powder, levelling agent, water-reducing agent, defoaming agent, starch ether, sodium citrate and water, it is characterised in that: the silicate cement 10-15 parts of mud;15-20 parts of sulphur aluminum water mud;2-3 parts of silicon ash;1-2 parts of bentonite;10-12 parts of mill tailings;Redispersable latex 1-2 parts of powder;2-3 parts of levelling agent;0.1-0.5 parts of water-reducing agent;0.2-0.3 parts of defoaming agent;0.1-0.2 parts of starch ether;Sodium citrate 0.1-0.2 parts and water 7-10 parts.
2. a kind of mill tailings gravity flowing levelling mortar according to claim 1, it is characterised in that: the mill tailings is golden tail Mine, iron ore mine, nickel minerals tailing, copper mining tailing and granite tailing etc..
3. a kind of mill tailings gravity flowing levelling mortar according to claim 1, it is characterised in that: the levelling agent includes methyl Dodecafluorhe-ptylacrylate, perfluor alkyl ethyl acrylate, propylene glycol methyl ether acetate, solvent and azodiisobutyronitrile, institute Dodecafluoroheptyl methacrylate, perfluor alkyl ethyl acrylate, propylene glycol methyl ether acetate and solvent are stated according to molar ratio Ratio be 1:1.5:2:230.
4. a kind of preparation method of mill tailings gravity flowing levelling mortar according to claim 1, includes the following steps,
S1, the preparation of levelling agent: by dodecafluoroheptyl methacrylate, perfluor alkyl ethyl acrylate and propylene glycol monomethyl ether vinegar Acid esters is put into container, is sufficiently stirred after solvent is added, dodecafluoroheptyl methacrylate, perfluor alkyl ethide acrylic acid Ester, propylene glycol methyl ether acetate and solvent form mixed liquor according to molar ratio 1:1.5:2:230 after mixing, to mixed liquor Middle dropwise addition azodiisobutyronitrile, carries out vacuum outgas, reaction temperature is set in 60-65 DEG C under nitrogen protection later;React 30- It 50 minutes, is cooled to room temperature later, and stands 1 hour, to obtain final levelling agent;
S2, the screening of ore tailing: being put into layering screen for mill tailings and sort, and obtains 30-60 mesh, 60-80 by screening The mine tailing of mesh, 3 class hierarchy of 80-120 mesh is carried out obtaining preparing tailing after mixed class is matched in the ratio of 1:2:1;
S3, the production of gravity flowing levelling mortar: weighing 10-15 parts of portland cement first, 15-20 parts of sulphur aluminum water mud, and 2-3 parts of silicon ash, 1-2 parts of bentonite, tailing 10-12 parts of preparation, 1-2 parts of redispersable latex powder, 2-3 parts of levelling agent, 0.1-0.5 parts of water-reducing agent, 0.2-0.3 parts of defoaming agent, 0.1-0.2 parts of starch ether, 0.1-0.2 parts and water 7-10 parts of sodium citrate, by the above mass parts raw material Portland cement, sulphur aluminum water mud, silicon ash, bentonite are added in blender, are stirred 2 minutes, are added levelling agent and water, are stirred It 4-8 minutes, is then added and prepares tailing and redispersable latex powder, stir evenly, be eventually adding water-reducing agent, defoaming agent, starch Ether and sodium citrate after evenly mixing, to obtain gravity flowing levelling mortar.
5. a kind of mill tailings gravity flowing levelling mortar according to claim 3, it is characterised in that: the propylene glycol monomethyl ether acetic acid The molar ratio ratio of ester and azodiisobutyronitrile is 4:1.
CN201910309738.9A 2019-04-17 2019-04-17 A kind of mill tailings gravity flowing levelling mortar and preparation method thereof Pending CN109896806A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101880142A (en) * 2010-06-25 2010-11-10 河北科技大学 Method for preparing wall and floor tile adhesive mortar by using mill tailings
CN106810159A (en) * 2017-01-21 2017-06-09 韩雷 A kind of preparation method of gravity flowing levelling mortar terrace
JP2017226575A (en) * 2016-06-22 2017-12-28 宇部興産株式会社 Self-leveling material for floor finishing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101880142A (en) * 2010-06-25 2010-11-10 河北科技大学 Method for preparing wall and floor tile adhesive mortar by using mill tailings
JP2017226575A (en) * 2016-06-22 2017-12-28 宇部興産株式会社 Self-leveling material for floor finishing
CN106810159A (en) * 2017-01-21 2017-06-09 韩雷 A kind of preparation method of gravity flowing levelling mortar terrace
CN108929089A (en) * 2017-01-21 2018-12-04 韩雷 A kind of production method of the gravity flowing levelling mortar terrace for switchgear house

Non-Patent Citations (1)

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Title
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