CN109053020A - A kind of morning strong micro mist for assembled architecture prefabricated components concrete - Google Patents
A kind of morning strong micro mist for assembled architecture prefabricated components concrete Download PDFInfo
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- CN109053020A CN109053020A CN201811181849.8A CN201811181849A CN109053020A CN 109053020 A CN109053020 A CN 109053020A CN 201811181849 A CN201811181849 A CN 201811181849A CN 109053020 A CN109053020 A CN 109053020A
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- prefabricated components
- micro mist
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- assembled architecture
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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
- 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
- C04B40/0042—Powdery mixtures
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/10—Accelerators; Activators
- C04B2103/12—Set accelerators
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention provides a kind of morning strong micro mists for assembled architecture prefabricated components concrete.Present invention solves the technical problem that prefabricated components early strength of concrete can be obviously improved by being mainly to provide one kind, and the morning strong micro mist of late strength of concrete performance is not influenced.By weight percentage, the early strong micro mist for assembled architecture prefabricated components concrete mainly includes following component: sulfoaluminate clinker 55 ~ 60%；Gypsum 15 ~ 25%；Ceramic 13 ~ 18%；Nitrite 2 ~ 4%；Ground blast furnace slag 6 ~ 13%；Molasses 0.4 ~ 0.6%；Polyethylene glycol 0.2 ~ 0.4%；Cellulose 0.05 ~ 0.1%；Triethanolamine 0.1 ~ 0.2%；Excess water.Morning strong micro mist outstanding advantages produced by the present invention are: improving prefabricated components concrete intensity 5-20MPa for 24 hours, accelerate 64% or more demoulding time, and do not influence the performance of later strength；Not chloride ion-containing will not generate corrosion to prefabricated components inside reinforcing bar, and the concrete durability of preparation is good；Raw material are easy to get, and simple production process, production cost is low, and production process is environmentally protective, easy to industrialized production.
Description
Technical field
The present invention relates to building material technical field more particularly to a kind of strong micro mists of morning for prefabricated components concrete.
Background technique
Assembled architecture is built made of assemble in site with factory-made component (PC), in architecture production side of China
Come into being under the background of formula great change, but since modern concrete early strength is relatively low, can not fast demoulding, cause mold all
Rate of rotation is low, seriously constrains the development of assembled architecture prefabricated components.
Entitled " a kind of preparation method of concrete early strength agent (Chinese patent application publication No.: CN105174785A) "
Patent disclose a kind of preparation method of concrete early strength agent, the early strength agent by being crushed to montmorillonite, acid adding processing,
Then it is added in the calcium oxalate montmorillonite powder that is attached to that treated, adds polyacrylamide, triisopropanolamine and copper sulphate,
Prepare a kind of concrete early strength agent of no free chloro ion.Although it can obtain certain early strong effect, preparation process
It is complicated, it is also necessary to heat, virtually constrain the development of early strength agent.
Entitled " concrete early strength agent and preparation method thereof (Chinese patent application publication No.: CN106316182A) "
Patent discloses a kind of concrete early strength agent and preparation method thereof, and the early strength agent is by each component of following weight
It is made: 20~25 parts of CaO, Al2O320~25 parts, Nb2O54~6 parts, MgSO43~7 parts, 15~20 parts of blanc fixe, boiling
15~20 parts of mountain flour, Bi2O3.7 parts of 0 .3~0, Li2CO31~3 part .4 parts of NaCl 0 .2~0, KCl 0 .2~0 .4
Part.The preparation method is calcined at ball milling, 850-900 DEG C, again with the reagents ball milling such as calcium aluminum hydrotalcite, can be obtained mixed
Solidifying soil early strength agent.Although can equally obtain certain early strong effect, this method can introduce a certain amount of chloride ion, to prefabricated
Reinforcing bar in component forms corrosion.Meanwhile this method needs are calcined under the conditions of 850 DEG C -900 DEG C, consume mass energy, it is unfavorable
In energy-saving and emission-reduction, it is larger to promote difficulty.
Therefore, it is necessary to continue to explore with study it is a kind of dedicated for the early micro- by force of assembled architecture prefabricated components concrete
Powder.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of for the early strong micro- of assembled architecture prefabricated components concrete
Powder.
Prefabricated structure can be significantly improved provided by the present invention for the early strong micro mist of assembled architecture prefabricated components concrete
Part concrete intensity 10-25MPa for 24 hours accelerates 65% or more demoulding time, and mold turnover is substantially improved；The present invention does not contain chlorine
Ion is smaller to the reinforcement corrosion of prefabricated components inside；Preparation process of the present invention does not generate any pollution, environmentally protective；This hair
The concrete durability of bright preparation is good.
In order to achieve the above-mentioned object of the invention, the present invention the following technical schemes are provided:
The present invention provides a kind of morning strong micro mists for assembled architecture prefabricated components concrete, including following weight percent
Component:
Sulfoaluminate clinker 55 ~ 60%
Gypsum 15 ~ 25%
Ceramic 13 ~ 18%
Nitrite 2 ~ 4%
Ground blast furnace slag 6 ~ 13%
Molasses 0.4 ~ 0.6%
Polyethylene glycol 0.2 ~ 0.4%
Cellulose 0.05 ~ 0.1%
Triethanolamine 0.1 ~ 0.2%
Excess water.
Preferably, the pretensioned-prestressed tube pile concrete early strong viscosity reduction type additive, including following parts by weight
Component:
Sulfoaluminate clinker 54 ~ 58%
Gypsum 15 ~ 19%
Ceramic 14 ~ 16%
Nitrite 3%
Ground blast furnace slag 8 ~ 12%
Molasses 0.3%
Polyethylene glycol 0.4%
Cellulose 0.1%
Triethanolamine 0.2%
Excess water.
Preferably, the gypsum is one of desulfurized gypsum, fluorgypsum or anhydrite.
Preferably, the ceramic is a kind of lightweight non-metallic multifunctional material, SiO2And Al2O3Total content >=
90%。
Preferably, the nitrite is one of calcium nitrite, sodium nitrite.
Preferably, molecular weight polyethylene glycol≤600.
Preferably, the cellulose is methylcellulose, hydroxypropyl methyl cellulose, hydroxyethyl cellulose, methylol fibre
Tie up one of element.
Preferably, the preparation method of the early strong micro mist for assembled architecture prefabricated components concrete, including with
Lower step:
Step 1: weighing or preparing each component according to the proportion；
Step 2: molasses and polyethylene glycol is added after cellulose is dissolved in water；
Step 3: by mixed liquor made from sulfoaluminate clinker, gypsum, nitrite and step 2 be put into ball mill grinding to than
Surface area is greater than 550m2/kg；
It is less than Step 4: ceramic, slag micropowder and triethanolamine to be put into ball mill inner powder and be milled to 45um square hole screen and tail over
2%；
Step 5: the powder that step 3 and step 4 obtain is sufficiently mixed in batch mixer, obtain for prefabricated components coagulation
The morning strong micro mist of soil.
Preferably, the size distribution of the early strong micro mist for assembled architecture prefabricated components concrete are as follows: first
Granularity section is less than 1um, accounts for the 11.2% of early strong micro mist gross mass；Second granularity section, 1um ~ 3um account for early strong micro mist gross mass
22.3%；Third granularity section, 3um ~ 45um account for the 52.8% of early strong micro mist gross mass；4th granularity section is greater than 45um, accounts for early strong
The 13.7% of micro mist gross mass.
Preferably, the early strong micro mist for assembled architecture prefabricated components concrete is equally applicable to other types
Prefabricated components concrete.
The work of several main raw material(s)s is now used as following elaboration by technical solution of the present invention for ease of understanding:
1, the early strong micro mist produced by the present invention for assembled architecture prefabricated components concrete is with sulfoaluminate clinker and gypsum
For core material.Studies have shown that portland cement clinker can be excellent when portland cement clinker, sulfoaluminate clinker and gypsum exist simultaneously
First absorption gypsum reacts, by a large number of experiments it was found that when the ratio of sulfoaluminate clinker and gypsum is greater than 5:1 and small
When 3:1, has gypsum more than needed and react generation entringite with sulphate aluminium cement, while being unlikely to again because of gypsum content mistake
Lead to concrete cracking more；
2, another core material produced by the present invention for assembled architecture prefabricated components concrete is slag micropowder and ceramics
Micro mist.Ceramic has good dispersion performance and preferable suspension, and slag micropowder grindability is far short of what is expected compared with ceramic,
The particle size range that slag micropowder and ceramic combined grinding can be widened to ceramic well, it is partially thin to make up ceramic,
Particle size range caused by cement granules are relatively thick lacks, to preferably play the physics filling effect of ceramic；
3, the assembled architecture prefabricated components concrete produced by the present invention that is used for is using nitrite as accelerating component.Nitrite energy
Accelerate the hydration process of cement, these salts not only serve as the early strength agent component of concrete, and it is anti-to can be used as concrete
Freeze agent component to use, fundamentally overcome alkali and the defect of electrochemical corrosion in concrete well, improves
The physical and mechanical property and durability of concrete, to obtain good concrete；
4, the assembled architecture prefabricated components concrete produced by the present invention that is used for is using cellulose as concrete anticracking component.Due to
Portland cement has shrinkage, and sulfoaluminate clinker and gypsum have the characteristic of microdilatancy, and several components are shunk and expanded not
Unanimously.And cellulose has thickening, suspension, bonding, emulsification, dispersion and keeps moisture and performance, in grinding sulfoaluminate clinker
Cellulose is added when with gypsum component, can make these types of component bonding closer to a certain extent；
5, produced by the present invention ripe using polyethylene glycol and molasses as aluminium sulfate for assembled architecture prefabricated components concrete
The grinding aid component of material and gypsum.After polyethylene glycol and molasses compatibility are added in mill, it is attracted to first by the table of mill solid material
Face enables the surface of solid material to reduce.Meanwhile grinding aid component can be also adsorbed on the crackle inner wall of solid material, further
Play the role of " chock " with the formation and constantly extension of crackle, not only prevent crack closure in the surface for entering crackle
And promote the expansion of crackle, to accelerate the generation of fracture.In the middle and later periods of grinding, grinding aid component mainly plays peptizaiton,
Delay or mitigate the cohesion of thin material；
6, produced by the present invention micro- using triethanolamine as slag micropowder and ceramics for assembled architecture prefabricated components concrete
The activity excitation component of powder.Triethanolamine is adsorbed on micro mist, into concrete after micro mist can be promoted in cement compound colloid
Extreme activity in particle has the effects of aggravation absorption, moisten, disperse；In addition, colloidal particle can be made to expand, surrounding is produced
Raw pressure, this pressure destroy concrete capillary channel, improve the density of concrete, and the anti-permeability performance of concrete increases
By force.Meanwhile in cement hydration process, triethanolamine, can be with Ca due to a pair of of unshared electron pair of N atom2+And Fe3+
Deng the complex ion that generation is soluble easily in water, the solubility of cement particle surface is improved, C is hindered3The surface A forms aquation initial stage
Non-permeable formation promotes C3A and C4The dissolution of AF accelerates it to react with gypsum and generates calcium sulphoaluminate.Meanwhile this reaction is also dropped
Calcium ion and aluminium ion concentration in low liquid phase, further promote C3S aquation, so that early strength of concrete be promoted to increase.
Compared with prior art, the invention has the benefit that
1, the early strong micro mist produced by the present invention for assembled architecture prefabricated components concrete can significantly improve prefabricated components
Concrete intensity 10-25MPa for 24 hours accelerates 65% or more demoulding time, and mold turnover is substantially improved；
2, on the one hand the present invention accelerates the shape of inside concrete entringite in such a way that chemical method and physical method combine
At on the other hand the most tightly packed principle of foundation, optimizes powder granule gradation, and physics filling effect is obvious.Pass through two methods
Cooperation, it is obvious that early strength of concrete promotes effect, and to the no any influence of the performance of late strength of concrete；
3, the early strong micro mist produced by the present invention for assembled architecture prefabricated components concrete not chloride ion-containing, will not be to prefabricated
Component inside reinforcing bar generates corrosion, meanwhile, the addition of nitrite is effectively mentioned there are also hindering rust and preventing the effectiveness of alkali
The durability of building is risen；
4, the early strong micro mist raw material produced by the present invention for assembled architecture prefabricated components concrete are easy to get, production technology letter
Single, production cost is low, and production process is environmentally protective, easy to industrialized production.
Specific embodiment
The present invention will be further described with reference to embodiments, but the invention is not limited to these embodiments.
Embodiment 1
A kind of morning strong micro mist for assembled architecture prefabricated components concrete, by weight percentage, including following components:
Sulfoaluminate clinker 54%
Gypsum 15%
Ceramic 14%
Nitrite 3%
Ground blast furnace slag 12%
Molasses 0.3%
Polyethylene glycol 0.4%
Cellulose 0.1%
Triethanolamine 0.2%
Water 1%.
Wherein, the gypsum is fluorgypsum；The ceramic SiO2And Al2O3Total content >=95%；The nitrous
Hydrochlorate is calcium nitrite；The molecular weight polyethylene glycol is 200；The cellulose is hydroxypropyl methyl cellulose.
A kind of preparation process of the early strong micro mist for assembled architecture prefabricated components concrete, carries out as follows:
Step 1: weighing or preparing each component according to the proportion；
Step 2: molasses and polyethylene glycol is added after cellulose is dissolved in water；
Step 3: by mixed liquor made from sulfoaluminate clinker, gypsum, nitrite and step 2 be put into ball mill grinding to than
Surface area is greater than 550m2/kg；
It is less than Step 4: ceramic, slag micropowder and triethanolamine to be put into ball mill inner powder and be milled to 45um square hole screen and tail over
2%；
Step 5: the powder that step 3 and step 4 obtain is sufficiently mixed in batch mixer, obtain for prefabricated components coagulation
The morning strong micro mist of soil.
The size distribution of the early strong micro mist of acquisition are as follows: the first granularity section is less than 1um, accounts for early strong micro mist gross mass
11.2%；Second granularity section, 1um ~ 3um account for the 22.3% of early strong micro mist gross mass；Third granularity section, 3um ~ 45um are accounted for early strong micro-
The 52.8% of powder gross mass；4th granularity section is greater than 45um, accounts for the 18.7% of early strong micro mist gross mass.
Embodiment 2
A kind of morning strong micro mist for assembled architecture prefabricated components concrete, by weight percentage, including following components:
Sulfoaluminate clinker 56%
Gypsum 17%
Ceramic 13%
Nitrite 3%
Ground blast furnace slag 9%
Molasses 0.3%
Polyethylene glycol 0.4%
Cellulose 0.1%
Triethanolamine 0.2%
Water 1%.
Wherein, the gypsum is desulfurized gypsum；The ceramic SiO2And Al2O3Total content >=95%；The Asia
Nitrate is calcium nitrite；The molecular weight polyethylene glycol is 200；The cellulose is hydroxypropyl methyl cellulose.
A kind of preparation process of the early strong micro mist for assembled architecture prefabricated components concrete, carries out as follows:
Step 1: weighing or preparing each component according to the proportion;
Step 2: molasses and polyethylene glycol is added after cellulose is dissolved in water;
Step 3: by mixed liquor made from sulfoaluminate clinker, gypsum, nitrite and step 2 be put into ball mill grinding to than
Surface area is greater than 550m2/kg;
It is less than Step 4: ceramic, slag micropowder and triethanolamine to be put into ball mill inner powder and be milled to 45um square hole screen and tail over
2%;
Step 5: the powder that step 3 and step 4 obtain is sufficiently mixed in batch mixer, obtain for prefabricated components coagulation
The morning strong micro mist of soil.
The size distribution of the early strong micro mist of acquisition are as follows: the first granularity section is less than 1um, accounts for early strong micro mist gross mass
13.2%；Second granularity section, 1um ~ 3um account for the 24.3% of early strong micro mist gross mass；Third granularity section, 3um ~ 45um are accounted for early strong micro-
The 47.8% of powder gross mass；4th granularity section is greater than 45um, accounts for the 14.7% of early strong micro mist gross mass.
Embodiment 3
A kind of morning strong micro mist for assembled architecture prefabricated components concrete, by weight percentage, including following components:
Sulfoaluminate clinker 58%
Gypsum 19%
Ceramic 9%
Nitrite 3%
Ground blast furnace slag 9%
Molasses 0.3%
Polyethylene glycol 0.4%
Cellulose 0.1%
Triethanolamine 0.2%
Water 1%.
Wherein, the gypsum is fluorgypsum；The ceramic SiO2And Al2O3Total content >=98%；The Asia
Nitrate is sodium nitrite；The molecular weight polyethylene glycol is 400；The cellulose is hydroxypropyl methyl cellulose.
A kind of preparation process of the early strong micro mist for assembled architecture prefabricated components concrete, carries out as follows:
Step 1: weighing or preparing each component according to the proportion；
Step 2: molasses and polyethylene glycol is added after cellulose is dissolved in water；
Step 3: by mixed liquor made from sulfoaluminate clinker, gypsum, nitrite and step 2 be put into ball mill grinding to than
Surface area is greater than 500m2/kg；
It is less than Step 4: ceramic, slag micropowder and triethanolamine to be put into ball mill inner powder and be milled to 45um square hole screen and tail over
2%；
Step 5: the powder that step 3 and step 4 obtain is sufficiently mixed in batch mixer, obtain for prefabricated components coagulation
The morning strong micro mist of soil.
The size distribution of the early strong micro mist of acquisition are as follows: the first granularity section is less than 1um, accounts for early strong micro mist gross mass
11.8%；Second granularity section, 1um ~ 3um account for the 19.3% of early strong micro mist gross mass；Third granularity section, 3um ~ 45um are accounted for early strong micro-
The 49.2% of powder gross mass；4th granularity section is greater than 45um, accounts for the 19.7% of early strong micro mist gross mass.
Application implementation case
Early strong micro mist prepared by the embodiment of the present invention 1 ~ 3 carries out application performance comparative test.The concrete that comparative test uses
Each material utilization amount is shown in Table 1, and polycarboxylate water-reducer volume is the 2.3% of cementitious material, with early strong micro mist substitution binder total amount
10%.Adding water and stirring from concrete to the time used in concrete crushing strength >=20MPa is demoulding time.Agent on crack resistance of concrete pressure
Degree test is carried out according to " standard for test methods of mechanical properties of ordinary concrete " GB/T 50081-2002.
Each material utilization amount of 1 concrete of table/(kg/m3)。
| Cement | Flyash | Early strong micro mist | Sand | Rubble | Water |
| 245 | 70 | 35 | 712 | 1115 | 123 |
A kind of early strong micro mist implementation result for assembled architecture prefabricated components concrete of table 2.
The above is only a preferred embodiment of the present invention, it is noted that come for those of ordinary skill in the art
It says, without departing from the concept of the premise of the invention, several modifications and variations can also be made, these belong to of the invention
Protection scope.
Claims (9)
1. a kind of morning strong micro mist for assembled architecture prefabricated components concrete, it is characterised in that: by following component according to weight
Measure percentage composition:
Sulfoaluminate clinker 55 ~ 60%
Gypsum 15 ~ 25%
Ceramic 13 ~ 18%
Nitrite 2 ~ 4%
Ground blast furnace slag 6 ~ 13%
Molasses 0.4 ~ 0.6%
Polyethylene glycol 0.2 ~ 0.4%
Cellulose 0.05 ~ 0.1%
Triethanolamine 0.1 ~ 0.2%
Excess water.
2. the morning strong micro mist according to claim 1 for assembled architecture prefabricated components concrete, it is characterised in that:
The gypsum is one of desulfurized gypsum, fluorgypsum or anhydrite.
3. the morning strong micro mist according to claim 1 for assembled architecture prefabricated components concrete, it is characterised in that:
The ceramic is a kind of lightweight non-metallic multifunctional material, SiO2And Al2O3Total content >=90%.
4. the morning strong micro mist according to claim 1 for assembled architecture prefabricated components concrete, it is characterised in that:
The nitrite is one of calcium nitrite, sodium nitrite.
5. the morning strong micro mist according to claim 1 for assembled architecture prefabricated components concrete, it is characterised in that:
Molecular weight polyethylene glycol≤600.
6. the morning strong micro mist according to claim 1 for assembled architecture prefabricated components concrete, it is characterised in that:
The cellulose is one of methylcellulose, hydroxypropyl methyl cellulose, hydroxyethyl cellulose, hydroxymethyl cellulose.
7. the preparation side of the described in any item early strong micro mists for assembled architecture prefabricated components concrete of claim 1 ~ 6
Method, comprising the following steps:
Step 1: weighing or preparing each component according to the proportion；
Step 2: molasses and polyethylene glycol is added after cellulose is dissolved in water；
Step 3: by mixed liquor made from sulfoaluminate clinker, gypsum, nitrite and step 2 be put into ball mill grinding to than
Surface area is greater than 550m2/kg；
It is less than Step 4: ceramic, slag micropowder and triethanolamine to be put into ball mill inner powder and be milled to 45um square hole screen and tail over
2%；
Step 5: the powder that step 3 and step 4 obtain is sufficiently mixed in batch mixer, obtain for prefabricated components coagulation
The morning strong micro mist of soil.
8. the described in any item morning strong micro mists for assembled architecture prefabricated components concrete of claim 1 ~ 7, feature exist
In: the size distribution of the early strong micro mist for assembled architecture prefabricated components concrete are as follows: the first granularity section is less than
1um accounts for the 10 ~ 15% of early strong micro mist gross mass；Second granularity section, 1um ~ 3um account for the 15 ~ 25% of early strong micro mist gross mass；Third
Granularity section, 3um ~ 45um account for the 45 ~ 55% of early strong micro mist gross mass；4th granularity section is greater than 45um, accounts for early strong micro mist gross mass
15 ~ 20%.
9. the application of the described in any item early strong micro mists for assembled architecture prefabricated components concrete of claim 1 ~ 8,
Be characterized in that: the early strong micro mist for assembled architecture prefabricated components concrete is equally applicable to other types prefabricated components
Concrete.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811181849.8A CN109053020A (en) | 2018-10-11 | 2018-10-11 | A kind of morning strong micro mist for assembled architecture prefabricated components concrete |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111454037A (en) * | 2020-03-04 | 2020-07-28 | 西南科技大学 | Production method of gypsum-based assembled building wallboard |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101508557A (en) * | 2009-04-09 | 2009-08-19 | 中国铁道科学研究院铁道建筑研究所 | Blending material for high-early-strength concrete |
| CN104446510A (en) * | 2014-11-25 | 2015-03-25 | 广州市翔龙环保科技有限公司 | Preparation method and utilization of ceramic tile silica powder |
-
2018
- 2018-10-11 CN CN201811181849.8A patent/CN109053020A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101508557A (en) * | 2009-04-09 | 2009-08-19 | 中国铁道科学研究院铁道建筑研究所 | Blending material for high-early-strength concrete |
| CN104446510A (en) * | 2014-11-25 | 2015-03-25 | 广州市翔龙环保科技有限公司 | Preparation method and utilization of ceramic tile silica powder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111454037A (en) * | 2020-03-04 | 2020-07-28 | 西南科技大学 | Production method of gypsum-based assembled building wallboard |
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