CN110183130B - Method for producing tile bonding mortar by using black casting sand - Google Patents
Method for producing tile bonding mortar by using black casting sand Download PDFInfo
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- CN110183130B CN110183130B CN201910478172.2A CN201910478172A CN110183130B CN 110183130 B CN110183130 B CN 110183130B CN 201910478172 A CN201910478172 A CN 201910478172A CN 110183130 B CN110183130 B CN 110183130B
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- 239000004576 sand Substances 0.000 title claims abstract description 217
- 238000005266 casting Methods 0.000 title claims abstract description 152
- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 239000002245 particle Substances 0.000 claims abstract description 39
- 239000000843 powder Substances 0.000 claims abstract description 36
- 239000000919 ceramic Substances 0.000 claims abstract description 34
- 239000000853 adhesive Substances 0.000 claims abstract description 27
- 230000001070 adhesive effect Effects 0.000 claims abstract description 27
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 14
- 230000003213 activating effect Effects 0.000 claims abstract description 13
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 13
- 238000000227 grinding Methods 0.000 claims abstract description 13
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 13
- 239000011707 mineral Substances 0.000 claims abstract description 13
- 238000002156 mixing Methods 0.000 claims abstract description 12
- 238000012216 screening Methods 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims abstract description 12
- 239000002253 acid Substances 0.000 claims abstract description 11
- 239000004568 cement Substances 0.000 claims abstract description 11
- 239000004816 latex Substances 0.000 claims abstract description 11
- 229920000126 latex Polymers 0.000 claims abstract description 11
- 229910052742 iron Inorganic materials 0.000 claims abstract description 7
- 229920001479 Hydroxyethyl methyl cellulose Polymers 0.000 claims abstract description 6
- 230000004913 activation Effects 0.000 claims abstract description 6
- 239000006148 magnetic separator Substances 0.000 claims abstract description 6
- 239000002313 adhesive film Substances 0.000 claims abstract description 5
- 229920001577 copolymer Polymers 0.000 claims description 9
- 239000004566 building material Substances 0.000 claims description 7
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 6
- 239000005977 Ethylene Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- HXKKHQJGJAFBHI-UHFFFAOYSA-N 1-aminopropan-2-ol Chemical compound CC(O)CN HXKKHQJGJAFBHI-UHFFFAOYSA-N 0.000 claims description 5
- VGTPCRGMBIAPIM-UHFFFAOYSA-M sodium thiocyanate Chemical compound [Na+].[S-]C#N VGTPCRGMBIAPIM-UHFFFAOYSA-M 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Natural products C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 3
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 2
- 230000000996 additive effect Effects 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 239000002699 waste material Substances 0.000 description 12
- 239000000084 colloidal system Substances 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 230000001965 increasing effect Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 238000002386 leaching Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000001988 toxicity Effects 0.000 description 3
- 231100000419 toxicity Toxicity 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 230000002285 radioactive effect Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 2
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 229960000907 methylthioninium chloride Drugs 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000013598 vector Substances 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/026—Comminuting, e.g. by grinding or breaking; Defibrillating fibres other than asbestos
-
- 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
-
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- 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
- C04B2111/00482—Coating or impregnation materials
- C04B2111/00508—Cement paints
-
- 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
- C04B2111/00637—Uses not provided for elsewhere in C04B2111/00 as glue or binder for uniting building or structural materials
-
- 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
- C04B2201/10—Mortars, concrete or artificial stone characterised by specific physical values for the viscosity
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention provides a method for producing tile bonding mortar by using black casting sand, which comprises the following steps: crushing the agglomerated black casting sand into sand particles by using a crusher, removing iron by using a magnetic separator, and then sending the sand particles into a high-frequency vibrator to remove adhesive films on the surfaces of the black casting sand particles; feeding the black casting sand obtained in the step S1 into a drum screen for screening, and separating black casting sand fine powder, black casting sand fine sand and black casting sand medium sand; mixing the fine black casting sand powder, the mineral activating agent, the redispersible latex powder, the hydroxyethyl methyl cellulose and the polycarboxylic acid high-efficiency water reducing agent in parts by weight according to a proportion, uniformly stirring, and then transferring into grinding equipment for activation and grinding to prepare the ceramic tile adhesive auxiliary agent; and mixing the ceramic tile adhesive auxiliary agent, the cement and the black casting sand fine sand in parts by weight and uniformly stirring to obtain the ceramic tile bonding mortar. The black casting sand is completely utilized, is applied to producing the tile bonding mortar, and has remarkable economic benefit, environmental benefit and social benefit.
Description
Technical Field
The invention belongs to the technical field of building materials, and particularly relates to a method for producing tile bonding mortar by using black casting sand.
Background
At present, natural sand is mostly used for sand used in a mortar plant, is formed by natural weathering, water flow transportation and separation and accumulation, can be divided into river sand, lake sand, mountain sand and evolutive sea sand according to the production sources, is a non-renewable resource in a short period of time, and artificial sand (machine-made sand and mixed sand) and industrial waste residue sand (steel slag sand and the like) begin to draw attention of the mortar plant and have certain application in view of the increasing shortage of natural sand resources and the increasing price.
The waste casting sand is also called as casting waste sand, and is a fine particle solid waste which is secondarily produced in the production process of metal products in the casting industry. In recent years, the casting industry in China is developed rapidly, but the phenomena of difficult recovery and treatment and disordered stacking of the waste casting sand are common, so that a large amount of land is occupied, the problems of environmental pollution and safety are easily caused, and in addition, the casting enterprises pay land fees, freight fees, landfill fees and the like, so that the production cost of the enterprises is increased, and therefore, the secondary utilization of the casting waste sand is realized, and the waste is changed into valuable, so that the fundamental way for solving the problem of the casting waste sand is provided.
Although China makes certain progress in the aspect of recycling waste casting sand, three problems still exist: 1. the dried and squeezed food cannot be used completely; 2. when the casting sand is used, colloids such as water glass or resin are added for casting, and if the colloids on the surface of the waste casting sand are not optimized, the dried casting sand is difficult to eat and squeeze to be perfectly utilized; 3. the water is washed to treat, and the rest water pollutes water resources; 3. the simple addition of the water-soluble polymer into concrete and mortar can reduce the strength, water retention, fluidity, slump and bleeding speed of the concrete and mortar. How to realize the utilization of dry squeezing without secondary pollution is the problem of recycling the waste casting sand at present.
The waste casting sand which is second in the ferrous metal (iron and steel) casting production line is called as black casting sand, and the black casting sand is found to be harmless solid waste through detection, investigation and research of physical and chemical properties, radioactivity, heavy metal content and leaching toxicity. The method has the advantages of correct disposal and scientific utilization, no secondary pollution to the environment, and reasonable reutilization of the resource, which is researched, and is a good countermeasure for disposing the black casting sand, protecting the ecological environment and changing waste into valuables at present.
Disclosure of Invention
The invention provides a method for producing tile bonding mortar by using black casting sand, which can overcome the defects of the prior art, can completely utilize the black casting sand without generating secondary pollution, and can produce the tile bonding mortar with the strength, the water retention property, the fluidity and the like meeting the requirements of national relevant standards.
The invention is realized by the following technical scheme:
a method for producing tile bonding mortar by using black casting sand comprises the following steps:
s1, crushing the agglomerated black casting sand into sand particles by using a crusher, removing iron by using a magnetic separator, and then sending the sand particles into a high-frequency vibrator to remove rubber films on the surfaces of the black casting sand particles (the high-frequency vibrator is used for repeatedly rubbing the black casting sand to remove the rubber films on the surfaces of the black casting sand particles);
s2, feeding the black casting sand obtained in the step S1 into a drum screen for screening, and sorting out the black casting sand with the particle size of less than or equal to 0.08mm as black casting sand fine powder, the black casting sand with the particle size of more than 0.08mm and less than or equal to 0.6mm as black casting sand fine sand, and the black casting sand with the particle size of more than 0.6mm as black casting sand medium sand;
s3, mixing 75-85 parts by weight of the black casting sand fine powder obtained by screening in the step S2, 3-5 parts by weight of a mineral activating agent, 12-18 parts by weight of redispersible latex powder, 0.1-0.5 part by weight of hydroxyethyl methyl cellulose and 0.5-1 part by weight of a polycarboxylic acid high-efficiency water reducing agent, uniformly stirring, and then transferring into grinding equipment for activation and grinding to obtain a ceramic tile adhesive auxiliary agent;
and S4, mixing and uniformly stirring 10-12 parts by weight of the ceramic tile adhesive auxiliary agent prepared in the step S3, 30-35 parts by weight of cement and 55-60 parts by weight of black casting sand fine sand to prepare the ceramic tile bonding mortar.
Preferably, the mineral activating agent is diethanol monoisopropanolamine, sodium thiocyanate and a water reducing agent in a weight ratio of 2-5:1-2: 1-2.
Preferably, the water reducing agent is a polycarboxylic acid high-efficiency water reducing agent.
Preferably, the redispersible latex powder is one or more of ethylene/vinyl acetate copolymer, vinyl acetate/ethylene versatate copolymer or acrylate/styrene copolymer.
Preferably, the cement is 425R cement.
Preferably, the specific surface area of the ceramic tile adhesive auxiliary agent is 450-550m2/kg。
Preferably, the step S2 screens the black casting sand to obtain 40-43wt% of sand in the black casting sand, 52-55wt% of fine sand of the black casting sand and 3-5wt% of fine powder of the black casting sand.
Preferably, the treatment mode of the sand in the black casting sand is as follows: and crushing and sorting the black casting sand medium sand to obtain the black casting sand fine sand and the black casting sand fine powder, or using the black casting sand medium sand or the casting sand as building materials for secondary use.
The beneficial effects of the invention are mainly embodied as follows:
1. the ceramic tile adhesive auxiliary agent is prepared by grinding the fine black casting sand powder by adding components such as a mineral activating agent and the like, is applied to ceramic tile bonding mortar, solves the problems of reduction of strength, water retention and fluidity, acceleration of slump and bleeding speed and the like of the black casting sand in the ceramic tile bonding mortar, improves the construction performance, improves the flow performance, increases thixotropy and anti-sagging property, improves cohesion, prolongs opening time, increases water retention, improves the tensile bonding strength of the ceramic tile bonding mortar, enhances compression strength and bending strength, reduces elastic modulus, improves deformability, enhances wear resistance, improves cohesive strength, reduces carbonization depth, reduces water absorption of materials, and enables the materials to have the characteristics of water increasing property and the like;
2. the ceramic tile bonding mortar produced by the invention is convenient to use, is added into water and stirred, and under the action of hydrophilic protective colloid and mechanical shearing, the ceramic tile adhesive auxiliary agent forms irreversible polymer colloid which is dispersed in the water together with other components, has short dispersion time, forms good colloid components together with cement gelled materials, and is quickly fused with black casting sand fine sand.
3. The invention utilizes the black casting sand according to different particle size grades, and grinds the waste casting sand fine powder with the particle size less than or equal to 0.08mm by adding the auxiliary agents such as mineral activating agents and the like to prepare the ceramic tile adhesive auxiliary agent, so that the ceramic tile adhesive auxiliary agent can play the characteristics of the ceramic tile adhesive auxiliary agent, the black casting sand fine powder with the particle size less than or equal to 0.6mm and the particle size greater than 0.08mm is used as mortar aggregate, and the sand in the black casting sand with the particle size greater than 0.6mm is crushed and then separated to obtain the black casting sand fine powder and the black casting sand fine powder, or is used as sand in building materials or casting sand for secondary use, so that the black casting sand is completely utilized without additional treatment, the problems of high stockpiling cost, large floor area and environmental pollution are solved, and the ceramic tile adhesive auxiliary agent; and the cost of the tile bonding mortar is greatly reduced.
Detailed Description
The present invention will be described in more detail with reference to examples. It is to be understood that the practice of the invention is not limited to the following examples, and that any variations and/or modifications may be made thereto without departing from the scope of the invention.
In the invention, all parts and percentages are weight units, and all equipment, raw materials and the like can be purchased from the market or are commonly used in the industry, if not specified. The methods in the following examples are conventional in the art unless otherwise specified.
Selecting black casting sand: and carrying out physical and chemical component analysis on the newly discharged black casting sand and the accumulated black casting sand, wherein the detection contents comprise burning vectors, sulfur trioxide, free calcium oxide, chloride ion content, alkali content, water content, methylene blue value, stability, density and chemical composition components of the black casting sand. And (3) sampling at multiple points on site, performing radioactive detection on the black casting sand sample, and performing leaching toxicity detection according to the standard requirement of the state on leaching toxicity of the building material according to the inspection method of GB 6566-2010 (limit of radioactive nuclide of the building material).
The black casting sand selected by the invention needs to meet the related safety standard and application standard of the mortar aggregate in China.
The black casting sand mainly comprises the following components in percentage by weight: SiO 22 2-3％、MgO 8-12％、Fe2O3 23-26％、Cr2O3 45-50％、Al2O3 13-17％。
Example 1
A method for producing tile bonding mortar by using black casting sand comprises the following steps:
s1, crushing the agglomerated black casting sand into sand particles by using a crusher, removing iron by using a magnetic separator, and then sending the sand particles into a high-frequency vibrator to remove adhesive films on the surfaces of the black casting sand particles;
s2, feeding the black casting sand obtained in the step S1 into a drum screen for screening, and sorting out the black casting sand with the particle size of less than or equal to 0.08mm as black casting sand fine powder, the black casting sand with the particle size of more than 0.08mm and less than or equal to 0.6mm as black casting sand fine sand, and the black casting sand with the particle size of more than 0.6mm as black casting sand medium sand;
specifically, 40-43wt% of black casting sand medium sand, 52-55wt% of black casting sand fine sand and 3-5wt% of black casting sand fine powder.
S3, mixing and uniformly stirring 80 parts by weight of the black casting sand fine powder obtained by screening in the step S2, 3.5 parts by weight of a mineral activating agent, 15 parts by weight of redispersible latex powder, 0.3 part by weight of hydroxyethyl methyl cellulose and 0.6 part by weight of a polycarboxylic acid high-efficiency water reducing agent, and then transferring the mixture into grinding equipment for activation and grinding to obtain a ceramic tile adhesive auxiliary agent; the specific surface area of the ceramic tile adhesive auxiliary agent is 450-550m2/kg。
The redispersible latex powder is an ethylene/vinyl acetate copolymer.
The mineral activating agent is composed of diethanol monoisopropanolamine, sodium thiocyanate and polycarboxylic acid high-efficiency water reducing agent according to the weight ratio of 3:1: 2.
And S4, mixing and uniformly stirring 10 parts by weight of the ceramic tile adhesive auxiliary agent prepared in the step S3, 35 parts by weight of 425R cement and 55 parts by weight of black casting sand fine sand to prepare the ceramic tile bonding mortar.
Example 2
A method for producing tile bonding mortar by using black casting sand comprises the following steps:
s1, crushing the agglomerated black casting sand into sand particles by using a crusher, removing iron by using a magnetic separator, and then sending the sand particles into a high-frequency vibrator to remove adhesive films on the surfaces of the black casting sand particles;
s2, feeding the black casting sand obtained in the step S1 into a drum screen for screening, and sorting out the black casting sand with the particle size of less than or equal to 0.08mm as black casting sand fine powder, the black casting sand with the particle size of more than 0.08mm and less than or equal to 0.6mm as black casting sand fine sand, and the black casting sand with the particle size of more than 0.6mm as black casting sand medium sand;
specifically, 40-43wt% of black casting sand medium sand, 52-55wt% of black casting sand fine sand and 3-5wt% of black casting sand fine powder.
S3, mixing and uniformly stirring 75 parts by weight of the black casting sand fine powder obtained by screening in the step S2, 3 parts by weight of a mineral activating agent, 12 parts by weight of a redispersible latex powder, 0.1 part by weight of hydroxyethyl methyl cellulose and 0.8 part by weight of a polycarboxylic acid high-efficiency water reducing agent, and then transferring the mixture into grinding equipment for activation and grinding to obtain a ceramic tile adhesive auxiliary agent; the specific surface area of the ceramic tile adhesive auxiliary agent is 450-550m2/kg。
The redispersible latex powder is vinyl acetate/ethylene versatate copolymer.
The mineral activating agent is composed of diethanol monoisopropanolamine, sodium thiocyanate and polycarboxylic acid high-efficiency water reducing agent according to the weight ratio of 2:2: 1.
And S4, mixing and uniformly stirring 11 parts of the ceramic tile adhesive auxiliary agent prepared in the step S3, 30 parts of 425R cement and 56 parts of black casting sand fine sand according to parts by weight, and preparing the ceramic tile bonding mortar.
Example 3
A method for producing tile bonding mortar by using black casting sand comprises the following steps:
s1, crushing the agglomerated black casting sand into sand particles by using a crusher, removing iron by using a magnetic separator, and then sending the sand particles into a high-frequency vibrator to remove adhesive films on the surfaces of the black casting sand particles;
s2, feeding the black casting sand obtained in the step S1 into a drum screen for screening, and sorting out the black casting sand with the particle size of less than or equal to 0.08mm as black casting sand fine powder, the black casting sand with the particle size of more than 0.08mm and less than or equal to 0.6mm as black casting sand fine sand, and the black casting sand with the particle size of more than 0.6mm as black casting sand medium sand;
specifically, 40-43wt% of black casting sand medium sand, 52-55wt% of black casting sand fine sand and 3-5wt% of black casting sand fine powder.
S3, mixing and uniformly stirring 85 parts by weight of the black casting sand fine powder obtained by screening in the step S2, 5 parts by weight of a mineral activating agent, 18 parts by weight of redispersible latex powder, 0.5 part by weight of hydroxyethyl methyl cellulose and 1 part by weight of polycarboxylic acid high-efficiency water reducing agent, and then transferring the mixture into grinding equipment for activation and grinding to obtain a ceramic tile adhesive auxiliary agent; the specific surface area of the ceramic tile adhesive auxiliary agent is 450-550m2/kg。
The redispersible latex powder is acrylate/styrene copolymer.
The mineral activating agent is composed of diethanol monoisopropanolamine, sodium thiocyanate and polycarboxylic acid high-efficiency water reducing agent according to the weight ratio of 5:2: 2.
And S4, mixing and uniformly stirring 12 parts by weight of the ceramic tile adhesive auxiliary agent prepared in the step S3 parts by weight of 425R cement and 60 parts by weight of black casting sand fine sand to prepare the ceramic tile bonding mortar.
In examples 1 to 3, the treatment of the sand in the black foundry sand was as follows: and crushing and sorting the black casting sand medium sand to obtain the black casting sand fine sand and the black casting sand fine powder, or using the black casting sand medium sand or the casting sand as building materials for secondary use.
The tile adhesive auxiliary agents and tile adhesive mortar (with water) obtained in examples 1 to 3 were subjected to performance tests, and the test results are shown in tables 1 and 2.
Table 1 table of performance test results of ceramic tile adhesive additives
Table 2 table of detection results of tile bonding mortar properties
As can be seen from tables 1 and 2, the tile adhesive auxiliary agent provided by the invention is applied to tile bonding mortar, so that the construction performance can be improved, the water retention property can be increased, the setting time is short, the tensile bonding strength of the tile bonding mortar can be improved, the compressive strength and the flexural strength can be enhanced, the wear-resisting strength can be improved, and the like.
Although the invention has been described and illustrated in some detail by the inventor, it should be understood that modifications to the above-described embodiments, and equivalents thereto, may occur to those skilled in the art, and it is intended that such modifications and improvements be included within the scope of the invention as claimed.
Claims (7)
1. A method for producing tile bonding mortar by using black casting sand is characterized by comprising the following steps: the method comprises the following steps:
s1, crushing the agglomerated black casting sand into sand particles by using a crusher, removing iron by using a magnetic separator, and then sending the sand particles into a high-frequency vibrator to remove adhesive films on the surfaces of the black casting sand particles;
s2, feeding the black casting sand obtained in the step S1 into a drum screen for screening, and sorting out the black casting sand with the particle size of less than or equal to 0.08mm as black casting sand fine powder, the black casting sand with the particle size of more than 0.08mm and less than or equal to 0.6mm as black casting sand fine sand, and the black casting sand with the particle size of more than 0.6mm as black casting sand medium sand;
s3, mixing 75-85 parts by weight of the black casting sand fine powder obtained by screening in the step S2, 3-5 parts by weight of a mineral activating agent, 12-18 parts by weight of redispersible latex powder, 0.1-0.5 part by weight of hydroxyethyl methyl cellulose and 0.5-1 part by weight of a polycarboxylic acid high-efficiency water reducing agent, uniformly stirring, and then transferring into grinding equipment for activation and grinding to obtain a ceramic tile adhesive auxiliary agent; the mineral activating agent is composed of diethanol monoisopropanolamine, sodium thiocyanate and a water reducing agent according to the weight ratio of 2-5:1-2: 1-2;
and S4, mixing and uniformly stirring 10-12 parts by weight of the ceramic tile adhesive auxiliary agent prepared in the step S3, 30-35 parts by weight of cement and 55-60 parts by weight of black casting sand fine sand to prepare the ceramic tile bonding mortar.
2. The method for producing tile bonding mortar using black casting sand according to claim 1, wherein: the water reducing agent is a polycarboxylic acid high-efficiency water reducing agent.
3. The method for producing tile bonding mortar using black casting sand according to claim 1, wherein: the redispersible latex powder is one or more of ethylene/vinyl acetate copolymer, vinyl acetate/ethylene versatate copolymer or acrylate/styrene copolymer.
4. The method for producing tile bonding mortar using black casting sand according to claim 1, wherein: the cement is 425R cement.
5. A process for producing a tile bonding mortar using black foundry sand according to any one of claims 1 to 4 wherein: the specific surface area of the ceramic tile adhesive additive is 450-.
6. A process for producing a tile bonding mortar using black foundry sand according to any one of claims 1 to 4 wherein: step S2, screening the black casting sand to obtain 40-43wt% of sand in the black casting sand, 52-55wt% of fine sand of the black casting sand and 3-5wt% of fine powder of the black casting sand.
7. The method for producing tile bonding mortar using black casting sand according to claim 6, wherein: the treatment mode of the sand in the black casting sand is as follows: and crushing and sorting the black casting sand medium sand to obtain the black casting sand fine sand and the black casting sand fine powder, or using the black casting sand medium sand or the casting sand as building materials for secondary use.
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| 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 |
| WO2013044980A1 (en) * | 2011-09-30 | 2013-04-04 | Akzo Nobel Chemicals International B.V. | Curable mixture |
| CN108164220A (en) * | 2018-01-21 | 2018-06-15 | 李肇炯 | A kind of metal tail slag regeneration glue for tile and its production method |
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Denomination of invention: A method of producing ceramic tile bonding mortar using black cast sand Effective date of registration: 20231016 Granted publication date: 20210427 Pledgee: Bank of China Limited Xiamen Xiang'an sub branch Pledgor: Xiamen Dutai New Material Technology Co.,Ltd. Registration number: Y2023980061504 |