CN110156422A - Gypsum plastering mortar and its construction technology suitable for machine sprayization spraying application - Google Patents
Gypsum plastering mortar and its construction technology suitable for machine sprayization spraying application Download PDFInfo
- Publication number
- CN110156422A CN110156422A CN201910539107.6A CN201910539107A CN110156422A CN 110156422 A CN110156422 A CN 110156422A CN 201910539107 A CN201910539107 A CN 201910539107A CN 110156422 A CN110156422 A CN 110156422A
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- Prior art keywords
- gypsum
- agent
- sprayization
- mortar
- machine
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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
- 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
- C04B28/14—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 calcium sulfate cements
- C04B28/142—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 calcium sulfate cements containing synthetic or waste calcium sulfate cements
- C04B28/144—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 calcium sulfate cements containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being a flue gas desulfurization product
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
- E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
- E04F21/06—Implements for applying plaster, insulating material, or the like
- E04F21/08—Mechanical implements
- E04F21/12—Mechanical implements acting by gas pressure, e.g. steam pressure
-
- 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
Abstract
The invention discloses the gypsum plastering mortars and its construction technology that are suitable for machine sprayization spraying application, which includes the raw material of following weight ratio: gypsum plural gel；Fine aggregate；Modified attapulgite；Flyash；Glass bead；Redispersible latex powder, cracking resistance water-retaining agent, rheological lubrication agent, air entraining agent.The present invention uses compound gypsum gel, replaces single gypsum materials, on the one hand reduces the dependence to single species of gypsum, and another aspect mortar mobility, workability are good, easily pump；The present invention uses compound cracking resistance water-retaining agent, is improved respectively for water retentivity of mortar, mobility and shrinkage-compensating problem, has many advantages, such as that water retention is high, flexibility is good, sag resistance is strong；Gypsum plastering mortar of the invention is suitable for mechanically spraying operation, carries out intensive treatment using soda ash liquid after spraying, significantly improves the intensity and densification smoothness of plastering, good with wall caking property, is firmly bonded after hardening with substrate.
Description
Technical field
The present invention relates to a kind of construction materials, are specifically suitable for the gypsum plastering mortar of machine sprayization spraying application and its apply
Work technique.
Background technique
Gypsum plastering mortar is applied to carry out bottom, surface layer and insulating layer plastering on the various metopes of Indoor environment and ceiling
Painting, have good workability, strong operability, shrink it is small, be not easy hollowing, cracking, and have good hydrofuge and moisture absorption
Property, have the function of adjusting indoor humidity.But in the construction process, mainly based on plastering by hand.The pure labour of plastering by hand is strong
Degree is big, and working efficiency is low, and construction quality does not ensure, later period repair rate is high, simultaneously because cost of labor increases in recent years, profession is applied
Worker person is in short supply, and construction cost is caused to be continuously increased.And it can greatly be improved and be applied with the gypsum mortar that automatic arc spraying is constructed
Work efficiency rate reduces cost of labor.The mortar for capableing of mechanically spraying construction is needed with pumping and sprayability, that is, is had outstanding
Rheological property, cementability etc., but common gypsum mortar is difficult to meet the performance of mechanically spraying, and the mortar of mechanically spraying exists
Cracking resistance, intensity etc. have certain gap with artificial construction's mortar.
Summary of the invention
The purpose of the present invention is to provide be suitable for machine sprayization spraying application gypsum plastering mortar and its construction technology, with
Solve the problems mentioned above in the background art.
To achieve the above object, the invention provides the following technical scheme:
Suitable for the gypsum plastering mortar of machine sprayization spraying application, the raw material including following weight ratio:
Gypsum plural gel 35-45%, the gypsum plural gel include the component of following weight ratio: desulfurized gypsum 20-
30%, waste phosphogypsum 15-20%, calcium sulphate retarder 0.1-0.2%, alkali-activator 0.05%；
Fine aggregate 10-25%；
Modified attapulgite 1-5%；
Flyash 6-10%；
Glass bead 2-4%；
Redispersible latex powder 1-3%；
Cracking resistance water-retaining agent 0.5-1.5%, 0.1-0.3% containing hydroxypropyl methyl cellulose ether, three in the cracking resistance water-retaining agent
Poly cyanamid methylal resin 0.1-0.2% and micro-expanding agent 0.1-0.3%；
Rheological lubrication agent 0.01-0.05%；
Air entraining agent 0.01-0.05%；
Water surplus.
As a further solution of the present invention: the fine aggregate uses river sand, and river sand maximum particle diameter is less than 0.3mm.
As a further solution of the present invention: the alkali-activator is quick lime.
As a further solution of the present invention: the modified attapulgite the preparation method comprises the following steps: using raw ore it is recessed soil in Muffle furnace
In with 400 DEG C of calcining 2h, after again with 820 DEG C of calcining 2h, obtain calcining modified attapulgite.
As a further solution of the present invention: the micro-expanding agent uses aluminium sulfate class swelling agent.
As a further solution of the present invention: the air entraining agent uses rosin entraining agent.
The construction technology of gypsum plastering mortar suitable for machine sprayization spraying application at least includes the following steps:
(1), base treatment is carried out to metope；
(2), first redispersible latex powder, cracking resistance water-retaining agent, air entraining agent, rheological lubrication agent are uniformly mixed to obtain
Raw material A；
(3), the gypsum plural gel, fine aggregate, modified attapulgite, flyash and the glass bead that prepare are added water and stirred mixed
It closes, obtains raw material B；
(4), raw material A and raw material B are added water and stirred it is uniformly mixed, immediately by the way of mechanically spraying by mortar spraying extremely
On metope, the soda ash solution of 20% concentration is immediately sprayed on metope.
Compared with prior art, the beneficial effects of the present invention are:
The present invention uses compound gypsum gel, replaces single gypsum materials, on the one hand reduces to single gypsum kind
The dependence of class, another aspect mortar mobility, workability are good, easily pump；
The present invention uses compound cracking resistance water-retaining agent, asks respectively for water retentivity of mortar, mobility and shrinkage-compensating
Topic is improved, and has many advantages, such as that water retention is high, flexibility is good, sag resistance is strong；
Gypsum plastering mortar of the invention is suitable for mechanically spraying operation, carries out intensive treatment using soda ash liquid after spraying,
The intensity for significantly improving plastering, it is good with wall caking property, it is firmly bonded after hardening with substrate, efficiently solves cement mortar and mix
Close that the hollowing of mortar plastering, the common faults such as crack, fall off, it is ensured that construction quality also reduces engineering later period repair rate, to drop
Low engineering comprehensive cost.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Embodiment one, the gypsum plastering mortar suitable for machine sprayization spraying application include the raw material of following weight ratio:
Gypsum plural gel 43.9%, the gypsum plural gel include the component of following weight ratio: desulfurized gypsum
25.2%, waste phosphogypsum 18.5%, calcium sulphate retarder 0.2%, alkali-activator 0.05%, the alkali-activator are made a living stone
Ash；
Fine aggregate 20%, using river sand, maximum particle diameter is not more than 0.3mm；
Modified attapulgite 3%, the modified attapulgite use the recessed soil of raw ore in Muffle furnace with 400 DEG C of calcining 2h, after again with 820
DEG C calcining 2h, obtains the modified recessed soil of calcining；
Flyash 8% is added the gradation that flyash is conducive to improve gypsum plastering mortar, increases fluidity of slurry；
Glass bead 3.5%；
Redispersible latex powder 1%；
Cracking resistance water-retaining agent 0.5% is contracted containing hydroxypropyl methyl cellulose ether 0.1%, melamine in the cracking resistance water-retaining agent
Formaldehyde resin 0.15% and micro-expanding agent 0.25, wherein hydroxypropyl methyl cellulose ether is conducive to improve water retentivity of mortar, reduces
Rate-of-loss of coolant avoids dry and cracked；Melamine formaldehyde resin can significantly improve Mortar'S Flowability, reduce water consumption, reduce the later period
It is dry to shrink, improve mortar strength；The micro-expanding agent uses aluminium sulfate class swelling agent, for compensating Mortar shrinkage；
Rheological lubrication agent 0.05%；
Air entraining agent 0.05%, the air entraining agent use rosin entraining agent；
Water 20%.
Construction procedure:
(1), base treatment is carried out to metope；
(2), first redispersible latex powder, cracking resistance water-retaining agent, air entraining agent, rheological lubrication agent are uniformly mixed to obtain
Raw material A；
(3), the gypsum plural gel, fine aggregate, modified attapulgite, flyash and the glass bead that prepare are added water and stirred mixed
It closes, obtains raw material B；
(4), raw material A and raw material B are added water and stirred it is uniformly mixed, immediately by the way of mechanically spraying by mortar spraying extremely
On metope, the soda ash solution of 20% concentration is immediately sprayed on metope, gypsum plastering mortar is formed, due to carbon in soda ash liquid
Acid ion roughing sand slurry in calcium hydroxide reaction combine, formed calcium carbonate achieve the effect that accelerated carbonation, can more quick setting it is hard
Change, improves the intensity and hardness of plastering.
It takes above-mentioned gypsum plastering mortar several, is tested with reference to GB/T28627-2012 " plastering gupsum ", test result
Such as table 1, it is seen then that mortar anti-seepage effect made of above-mentioned composition and construction is fine, mortar more flowability, using compound
Cracking resistance water-retaining agent makes excellent strength of plastering, and water retention is 95% or more, and slurry has biggish cohesiveness, is easy to spray and apply
Work.
Table 1
Embodiment two, the gypsum plastering mortar suitable for machine sprayization spraying application include the raw material of following weight ratio:
Gypsum plural gel 37.9%, the gypsum plural gel include the component of following weight ratio: desulfurized gypsum
21.6%, waste phosphogypsum 16.1%, calcium sulphate retarder 0.2%, alkali-activator 0.05%, the alkali-activator are made a living stone
Ash；
Fine aggregate 24%, using river sand, maximum particle diameter is not more than 0.3mm；
Modified attapulgite 3%, the modified attapulgite use the recessed soil of raw ore in Muffle furnace with 400 DEG C of calcining 2h, after again with 820
DEG C calcining 2h, obtains the modified recessed soil of calcining；
Flyash 6% is added the gradation that flyash is conducive to improve gypsum plastering mortar, increases fluidity of slurry；
Glass bead 2.5%；
Redispersible latex powder 1%；
Cracking resistance water-retaining agent 0.5% is contracted containing hydroxypropyl methyl cellulose ether 0.1%, melamine in the cracking resistance water-retaining agent
Formaldehyde resin 0.15% and micro-expanding agent 0.25, wherein hydroxypropyl methyl cellulose ether is conducive to improve water retentivity of mortar, reduces
Rate-of-loss of coolant avoids dry and cracked；Melamine formaldehyde resin can significantly improve Mortar'S Flowability, reduce water consumption, reduce the later period
It is dry to shrink, improve mortar strength；The micro-expanding agent uses aluminium sulfate class swelling agent, for compensating Mortar shrinkage；
Rheological lubrication agent 0.05%；
Air entraining agent 0.05%；
Water 25%.
Construction procedure:
(1), base treatment is carried out to metope；
(2), first redispersible latex powder, cracking resistance water-retaining agent, air entraining agent, rheological lubrication agent are uniformly mixed to obtain
Raw material A；
(3), the gypsum plural gel, fine aggregate, modified attapulgite, flyash and the glass bead that prepare are added water and stirred mixed
It closes, obtains raw material B；
(4), raw material A and raw material B are added water and stirred it is uniformly mixed, immediately by the way of mechanically spraying by mortar spraying extremely
On metope, the soda ash solution of 20% concentration is immediately sprayed on metope, gypsum plastering mortar is formed, due to carbon in soda ash liquid
Acid ion roughing sand slurry in calcium hydroxide reaction combine, formed calcium carbonate achieve the effect that accelerated carbonation, can more quick setting it is hard
Change, improves the intensity and hardness of plastering.
It takes above-mentioned gypsum plastering mortar several, is tested with reference to GB/T28627-2012 " plastering gupsum ", test result
Such as table 2, it is seen then that mortar anti-seepage effect made of above-mentioned composition and construction is fine, mortar more flowability, using compound
Cracking resistance water-retaining agent makes excellent strength of plastering, and water retention is 95% or more, and slurry has biggish cohesiveness, is easy to spray and apply
Work.
Table 2
Comparative example one
Gypsum plastering mortar includes the raw material of following weight ratio:
Desulfurized gypsum 43.9%；
Fine aggregate 20%, using river sand, maximum particle diameter is not more than 0.3mm；
Flyash 8% is added the gradation that flyash is conducive to improve gypsum plastering mortar, increases fluidity of slurry；
Glass bead 3.5%；
Redispersible latex powder 1%；
Hydroxypropyl methyl cellulose ether 0.5%；
Rheological lubrication agent 0.05%；
Air entraining agent 0.05%；
Water 23%.
Construction procedure:
(1), base treatment is carried out to metope；
(2), first redispersible latex powder, hydroxypropyl methyl cellulose ether, air entraining agent, rheological lubrication agent are mixed
Uniformly obtain raw material A；
(3), desulfurized gypsum, fine aggregate, flyash and glass bead are added water and stirred into mixing, obtains raw material B；
(4), raw material A and raw material B are added water and stirred it is uniformly mixed, immediately by the way of mechanically spraying by mortar spraying extremely
On metope, the soda ash solution of 20% concentration is immediately sprayed on metope, gypsum plastering mortar is formed, due to carbon in soda ash liquid
Acid ion roughing sand slurry in calcium hydroxide reaction combine, formed calcium carbonate achieve the effect that accelerated carbonation, can more quick setting it is hard
Change, improves the intensity and hardness of plastering.
It takes above-mentioned gypsum plastering mortar several, is tested with reference to GB/T28627-2012 " plastering gupsum ", test result
Such as table 3, it is seen then that compare embodiment one and embodiment two, the performance indexes of mortar is declined in this comparative example, especially
Decline on flexural strength and water retention property obvious, it is seen that mobile performance, water conservation using composite cracking water-retaining agent to mortar
Performance is significantly increased.
Table 3
Comparative example two,
Gypsum plastering mortar includes the raw material of following weight ratio:
Gypsum plural gel 43.9%, the gypsum plural gel include the component of following weight ratio: desulfurized gypsum
25.2%, waste phosphogypsum 18.5%, calcium sulphate retarder 0.2%, alkali-activator 0.05%, the alkali-activator are made a living stone
Ash；
Fine aggregate 20%, using river sand, maximum particle diameter is not more than 0.3mm；
Modified attapulgite 3%, the modified attapulgite use the recessed soil of raw ore in Muffle furnace with 400 DEG C of calcining 2h, after again with 820
DEG C calcining 2h, obtains the modified recessed soil of calcining；
Flyash 8% is added the gradation that flyash is conducive to improve gypsum plastering mortar, increases fluidity of slurry；
Glass bead 3.5%；
Redispersible latex powder 1%；
Cracking resistance water-retaining agent 0.5% is contracted containing hydroxypropyl methyl cellulose ether 0.1%, melamine in the cracking resistance water-retaining agent
Formaldehyde resin 0.15% and micro-expanding agent 0.25, wherein hydroxypropyl methyl cellulose ether is conducive to improve water retentivity of mortar, reduces
Rate-of-loss of coolant avoids dry and cracked；Melamine formaldehyde resin can significantly improve Mortar'S Flowability, reduce water consumption, reduce the later period
It is dry to shrink, improve mortar strength；The micro-expanding agent uses aluminium sulfate class swelling agent, for compensating Mortar shrinkage；
Rheological lubrication agent 0.05%；
Air entraining agent 0.05%；
Water 20%.
Construction procedure:
(1), base treatment is carried out to metope；
(2), first redispersible latex powder, cracking resistance water-retaining agent, air entraining agent, rheological lubrication agent are uniformly mixed to obtain
Raw material A；
(3), the gypsum plural gel, fine aggregate, modified attapulgite, flyash and the glass bead that prepare are added water and stirred mixed
It closes, obtains raw material B；
(4), raw material A and raw material B are added water and stirred it is uniformly mixed, immediately by the way of mechanically spraying by mortar spraying extremely
On metope.
Gypsum plastering mortar after taking above-mentioned drying is several, is tested with reference to GB/T28627-2012 " plastering gupsum ",
Test result such as table 4, it is seen then that the mortar prepared is directly subjected to mechanically spraying, without intensive treatment, is plastered in intensive properties
Opposite embodiment can be gone up to be decreased obviously, illustrate that the construction technology using soda ash liquid intensive treatment can significantly improve the intensity of plastering.
Table 4
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (7)
1. being suitable for the gypsum plastering mortar of machine sprayization spraying application, it is characterised in that: the raw material including following weight ratio:
Gypsum plural gel 35-45%, the gypsum plural gel include the component of following weight ratio: desulfurized gypsum 20-30%,
Waste phosphogypsum 15-20%, calcium sulphate retarder 0.1-0.2%, alkali-activator 0.05%；
Fine aggregate 10-25%；
Modified attapulgite 1-5%；
Flyash 6-10%；
Glass bead 2-4%；
Redispersible latex powder 1-3%；
Cracking resistance water-retaining agent 0.5-1.5%, 0.1-0.3% containing hydroxypropyl methyl cellulose ether, melamine in the cracking resistance water-retaining agent
Amine methylal resin 0.1-0.2% and micro-expanding agent 0.1-0.3%；
Rheological lubrication agent 0.01-0.05%；
Air entraining agent 0.01-0.05%；
Water surplus.
2. the gypsum plastering mortar according to claim 1 suitable for machine sprayization spraying application, it is characterised in that: described thin
Aggregate uses river sand, and river sand maximum particle diameter is less than 0.3mm.
3. the gypsum plastering mortar according to claim 1 suitable for machine sprayization spraying application, it is characterised in that: the alkali
Property exciting agent be quick lime.
4. the gypsum plastering mortar according to claim 1 suitable for machine sprayization spraying application, it is characterised in that: described to change
Property recessed soil the preparation method comprises the following steps: use the recessed soil of raw ore in Muffle furnace with 400 DEG C of calcining 2h, after again with 820 DEG C of calcining 2h, obtain
Calcine modified attapulgite.
5. the gypsum plastering mortar according to claim 1 suitable for machine sprayization spraying application, it is characterised in that: described micro-
Swelling agent uses aluminium sulfate class swelling agent.
6. the gypsum plastering mortar according to claim 1 suitable for machine sprayization spraying application, it is characterised in that: described to draw
Gas agent uses rosin entraining agent.
7. the construction technology of -6 any gypsum plastering mortars suitable for machine sprayization spraying application according to claim 1,
It is characterized by: at least including the following steps:
(1), base treatment is carried out to metope；
(2), it first is uniformly mixed redispersible latex powder, cracking resistance water-retaining agent, air entraining agent, rheological lubrication agent to obtain raw material
A；
(3), the gypsum plural gel, fine aggregate, modified attapulgite, flyash and the glass bead that prepare are added water and stirred into mixing,
Obtain raw material B；
(4), raw material A and raw material B are added water and stirred it is uniformly mixed, immediately by mortar spraying to metope by the way of mechanically spraying
On, the soda ash solution of 20% concentration is immediately sprayed on metope.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910539107.6A CN110156422A (en) | 2019-06-20 | 2019-06-20 | Gypsum plastering mortar and its construction technology suitable for machine sprayization spraying application |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910539107.6A CN110156422A (en) | 2019-06-20 | 2019-06-20 | Gypsum plastering mortar and its construction technology suitable for machine sprayization spraying application |
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| CN112159196A (en) * | 2020-10-10 | 2021-01-01 | 重庆中科建设（集团）有限公司 | High-strength waterproof plastering gypsum mortar and preparation method thereof |
| CN113173771A (en) * | 2021-05-08 | 2021-07-27 | 钟祥市天宇建材有限公司 | Water-resistant phosphogypsum plastering mortar |
| CN113213870A (en) * | 2021-04-28 | 2021-08-06 | 浙申环保材料(宁波)有限公司 | Better-performance light plastering gypsum |
| CN114477934A (en) * | 2020-10-23 | 2022-05-13 | 湖南和贵砂浆技术有限公司 | Bi-component gypsum-based plastering mortar and preparation method thereof |
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| CN112159196A (en) * | 2020-10-10 | 2021-01-01 | 重庆中科建设（集团）有限公司 | High-strength waterproof plastering gypsum mortar and preparation method thereof |
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| CN114477934A (en) * | 2020-10-23 | 2022-05-13 | 湖南和贵砂浆技术有限公司 | Bi-component gypsum-based plastering mortar and preparation method thereof |
| CN113213870A (en) * | 2021-04-28 | 2021-08-06 | 浙申环保材料(宁波)有限公司 | Better-performance light plastering gypsum |
| CN113173771A (en) * | 2021-05-08 | 2021-07-27 | 钟祥市天宇建材有限公司 | Water-resistant phosphogypsum plastering mortar |
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