CN101830682A - Plastering mortar prepared by using construction wastes and phosphogypsum - Google Patents

Plastering mortar prepared by using construction wastes and phosphogypsum Download PDF

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Publication number
CN101830682A
CN101830682A CN201010179106A CN201010179106A CN101830682A CN 101830682 A CN101830682 A CN 101830682A CN 201010179106 A CN201010179106 A CN 201010179106A CN 201010179106 A CN201010179106 A CN 201010179106A CN 101830682 A CN101830682 A CN 101830682A
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motar
agent
surface area
specific surface
cement
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CN101830682B (en
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马保国
苏雷
蹇守卫
宋雪峰
徐如林
高立
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Wuhan University of Technology WUT
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Wuhan University of Technology WUT
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/14—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
    • 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
    • C04B2111/00017—Aspects relating to the protection of the environment
    • 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
    • C04B2111/00646—Masonry mortars
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The invention relates to a plastering mortar, which is mainly prepared from the following raw materials in percentage by mass: 10 to 20 percent cement, 20 to 30 percent modified phosphogypsum, 20 to 30 percent of construction wastes, 30 to 40 percent of sand, and 3 to 5 percent of exciting agent. A method for preparing the plastering mortar comprises the steps of preparing the modified phosphogypsum, preparing construction waste powder, preparing the exciting agent and preparing a final product. The plastering mortar is of great significance for efficiently utilizing the construction wastes, reducing pollutions caused by solid wastes to the environment and reducing the production cost, and simultaneously the plastering mortar has the advantage of low cost and high strength.

Description

A kind of motar that utilizes building waste and phosphogypsum preparation
Technical field
The invention belongs to building material field, be specifically related to a kind of motar that utilizes building waste and phosphogypsum preparation.
Background technology
Motar is widely used as a kind of common dry-mixed mortar, and the floor area of building of plastering every square metre in general covil construction has 3～5m 2Interior table plaster, 0.15～0.75m is arranged 2Appearance plaster.Its cost of plastering accounts for 10%～15% of building total cost, accounts for 30%～40% of total duration from the duration, thereby can motar to building cost with go into operation quickly to sell influence is greatly arranged.In the practice of construction process, poor, the problems of crack of motar workability often appears, and when producing motar, the starting material of employing are natural mineral mostly, make the production cost height.Utilizing aspect the industrial residue, normal active low because of industrial residue, and cause its volume to cross low or the motar performance can not reach relevant national standards.About utilizing industrial residue to prepare dry-mixed mortar, existing big both at home and abroad quantity research report, and lot of documents is arranged, for example:
Wang Hong towns etc. adopt cement, sand shape aggregate, epipastic mineral Additive and unique admixture system, and the motar product that has splitting resistance through preparation rationally can be produced is specially adapted to whitewash various light material bodies of wall.(referring to document: the Wang Hong town, building is disturbed development and the application [J] of splitting the dry powder motar. chemical building material, 2007, (2): 38-40.).
Zhong Kaihong etc. utilize building waste and slag to prepare dry-mixed mortar.By a large amount of evidences: the chemistry that intensifies with compound additive at the physics of ultra micro refinement intensifies under the effect, utilizes building waste micro mist and slag micro powder to mix again, can make the dry-mixed mortar of M2.5～M20 different intensity grades.Simultaneously building waste micro mist and slag micro powder to the volume stability of mortar do not have detrimentally affect (referring to document: Zhong Kaihong, utilize building waste and industrial residue to prepare the research [J] of dry-mixed mortar. Guangdong building .2009, (6): 20-23.).
Xu Peng is poor at traditional motar workability, poor water retention property, cohesive strength is low and shortcoming such as easy to crack, by studying water-holding agent, starch ethers, hydrophober and polypropylene fibre to the motar Effect on Performance, developed a kind ofly have good workability, good water-retaining property, shrinking percentage is low, cohesive strength is high, be difficult for rimose novel plastering mortar, and to admixture improve mechanism carried out discussing (referring to document: Xu Pengxin. the development [J] of type cracking resistance motar. concrete .2009, (6): 106-109.)
Xiao Qunfang etc. are from studying materials for wall water absorption character commonly used, inquire into that different materials for wall is suitable for build by laying bricks or stones with the motar performance (referring to document: Xiao Qunfang, Li Yanling, Yin Shuai. common applied research [J] of building by laying bricks or stones with motar. walling innovation and building energy conservation .2009, (7): 54-56.).
Xuzhou City coal gangue institute utilizes the thermal insulation mortar of trial-productions such as dry discharge fly ash, cement, phosphogypsum, unslaked lime and exciting agent, toughener, water-holding agent, adjustable solidification agent, pearlstone, sclerosis back unit dry weight 550～650kg/m 3Thermal conductivity 0.104～0.116W/mk, ultimate compression strength 2～2.5MPa, cohesive force 0.15～0.25MPa is (referring to document: Yan Chengyue, the Zhang Zhi river. flyash masonry mortar and flyash motar application example [J]. total utilization of PCA .1999, (2): 65-68.).
Handan City the 3rd construction engineering corporation and the 4th construction engineering corporation utilize cement: flyash: the pulverized fuel ash cement mortar of sand=1: 1: 4, smear the roofing screed-coat, mortar ultimate compression strength 10～16MPa, shrinkability is identical substantially with the benchmark mortar, save cement 37%, economical with materials takes 30%.(referring to document: Yan Chengyue, the Zhang Zhi river. flyash masonry mortar and flyash motar application example [J]. total utilization of PCA .1999, (2): 65-68.).
The former federal republic of germany engineering technical personnel with 60% flyash, 10% lime, 30% cement mixing after, add water stain being applied to and carry out old tunnel on the tunnel wall and reinforce and transform, easy construction, cost saving again, the flyash that is used for this engineering every year reaches more than 20 ten thousand tons.
Summary of the invention:
Technical problem to be solved by this invention is: a kind of construction waste powder place of cement of utilizing is provided, prepares motar, have great importance for efficient utilization of building waste and environment protection.
The present invention solves its technical problem by the following technical solutions:
Motar provided by the invention, mainly make by following raw material: cement 10%～20%, modified ardealite 20%～30%, construction waste powder 20%～30%, sand 30%～40%, exciting agent 3%～5% is mass percent.
Above-mentioned motar provided by the invention, also having mass percent in its component is 0.2%～0.6% water-holding agent, and this water-holding agent is a hydroxypropyl methyl cellulose ether, and its viscosity is 100000Pa.S.
Above-mentioned motar provided by the invention, also having mass percent in its component is 0.1%～0.2% anti-fissuring agent, this anti-fissuring agent is for being polypropylene fibre.
Described modified ardealite can be made up of phosphogypsum, unslaked lime and flyash, and they are by mass ratio (7～13): (3～6): 1 mix after, at 80 ℃ of oven dry 2h down, use the ball mill grinding again to specific surface area 3000～3500cm 2/ g is resulting.
Described construction waste powder can adopt by the isolated mortar micro mist of discarded concrete, particle diameter≤5mm, and grinding is to specific surface area 2500～3500cm in ball mill 2/ g.
Described exciting agent can adopt CaSO 4With Na 2SiO 39H 2The mixture of O, the two mass ratio are 1: (2～4).
Above-mentioned motar provided by the invention, its preparation method may further comprise the steps:
(1) preparation of modified ardealite:
After phosphogypsum, lime and flyash mixed by proportioning,, be 3000～3500cm with ball mill grinding to specific surface area then at 80 ℃ of baking 2h down 2/ g;
(2) preparing construction waste powder:
Discarded concrete is carried out fragmentation, screening, secondary breaking, realize separating of aggregate and mortar, isolate the particle diameter≤5mm of mortar, grinding is to specific surface area 2500～3500cm in ball mill 2/ g;
(3) preparation of exciting agent:
Press proportioning with CaSO 4With Na 2SiO 39H 2O mixes;
(4) preparation of motar:
Cement, sand and above-mentioned modified ardealite, construction waste powder, exciting agent are taken by weighing by prescription, then they are mixed, grinding is to specific surface area 3500～4500cm 2/ g obtains described motar; Perhaps, cement, sand and above-mentioned modified ardealite, construction waste powder, exciting agent, water-holding agent and anti-fissuring agent are taken by weighing by prescription, then they are mixed, grinding is to specific surface area 3500～4500cm 2/ g obtains described motar.
The present invention can also be with the raw material of above-mentioned preparation, take by weighing by cement 15%, modified ardealite 25%, construction waste powder 20%, sand 35%, exciting agent 4.6%, water-holding agent 0.3% and anti-fissuring agent 0.1% earlier, be mass percent, then they are mixed, grinding is to specific surface area 3500cm 2/ g obtains described motar.
The present invention can also be with the raw material of above-mentioned preparation, take by weighing by cement 20%, modified ardealite 20%, construction waste powder 25%, sand 30%, exciting agent 4.5%, water-holding agent 0.3% and anti-fissuring agent 0.2% earlier, be mass percent, then they are mixed, grinding is to specific surface area 4500cm 2/ g obtains described motar.
Each raw-material acting as among the present invention: after cement mixes and stirs with an amount of water, the C in the grog 2S, C 3S, C 3A and C 4AF immediately with water generation chemical reaction, can form the plasticity-slurry that the sandstone that can bond etc. gathers materials, become stone column body gradually by setting and harden subsequently, and non-coherent material can be gluedd joint and become integral body with intensity.Modified ardealite advanced grinding, change has taken place in fineness and particle form, dihydrate gypsum changes semi-hydrated gypsum into, can play delayed coagulation, the crystalline structure of gypsum crystal and mineral formation changes after the thermal treatment, thereby possesses gelling property, modified ardealite plays restraining effect to the digestion of lime simultaneously, after adding modified ardealite, can reduce the digestion condition of lime and prolong digestion time, the expansion of volume during the restriction lime slaking.Contain unhydrated cement and hydrated product etc. in the construction waste powder, under the effect of exciting agent, can carry out hydration reaction and secondary hydration reaction, improve the intensity of system with water.Sand is also had an effect with hydrated product as gathering materials, and produces certain intensity.But calcium lime powder replacing lime cream is used to mix the system motar, except that saving the lime, can save setting of ashing pond and caustic lime block simultaneously and drench the operation of system lime putty, " slaking " time of accelerating lime.Exciting agent can provide SO 4 2-And Ca 2+, with the active A l that is dissolved in liquid phase 2O 3Reaction generates stable ettringite, thereby helps Ca 2+Be diffused into granule interior, with inner active A l 2O 3And SiO 2Reaction, the degree of raising activity excitation.Na 2SiO 39H 2Also can improve the OH in the solution after the O hydrolysis -Concentration is impelled cancellated cracking, and quickens its hydration reaction.Water-holding agent makes masonry mortar that certain water retention be arranged, and can guarantee that gelling material such as cement carry out hydration reaction more fully.Anti-fissuring agent can improve the elasticity of motar system, has certain water retention simultaneously, guarantees that motar can not ftracture.
The present invention compared with prior art has following major advantage:
1. adopt mechanical mill and thermal treatment that phosphogypsum is carried out modification, can change fineness, the particle form of phosphogypsum, the crystalline structure and the mineralogical composition of gypsum, make phosphogypsum have gelling property, substitute the plaster of paris, reduce production costs.
2. adopt through obtain after the pre-treatment by the isolated mortar micro mist of discarded concrete, substitute part cement, both efficiently utilized building waste, reduced production cost again.
3. adopt by CaSO 4With Na 2SiO 39H 2The exciting agent that O forms can promote the formation of hydrated products such as ettringite, improves the intensity of mortar.
4. adopt ether of cellulose as water-holding agent, can make mortar have certain water-retentivity, guarantee that cement has the time enough aquation, improve the elasticity of mortar, reduce cracking, improve the workability of mortar.
Embodiment:
The present invention is guaranteeing that the motar performance satisfies under the condition of national standard, utilize construction waste powder as adulterant, utilize the construction waste powder place of cement and adopt the alternative plaster of paris of byproduct phosphogypsum in chemical plant to prepare the motar that satisfies the national standard requirement, adopt exciting agent that the activity of adulterant is excited, improve the activity of adulterant.
The invention will be further described below in conjunction with embodiment, but not only be confined to the following examples.
Embodiment 1:
1. the preparation of building waste micro mist: after discarded concrete carried out fragmentation, screening, secondary breaking, can realize separating of aggregate and mortar, mortar powder particle size≤5mm is 3000cm in grinding in ball grinder to specific surface area 2/ g, chemical ingredients sees Table 1.
2. the preparation of modified ardealite: after phosphogypsum, unslaked lime and flyash mixed by mass ratio at 12: 5: 1,, use the ball mill grinding again to specific surface area 3000cm at 80 ℃ of oven dry 2h down 2/ g gets modified ardealite, and chemical ingredients sees Table 1.Wherein the radioactivity of phosphogypsum all meets " the radioactive material nucleic is limited the quantity of " related request (GB6566-2001).
3. exciting agent is CaSO 4With Na 2SiO 39H 2O is 1: 4 mixing gained by mass ratio.
4. by the shared weight percent of each starting material be: cement 15%, modified ardealite 25%, construction waste powder 20%, sand 35%, exciting agent: 4.6%, water-holding agent: 0.3%, anti-fissuring agent: 0.1%, choose raw material, each starting material is mixed, get motar.
5. the application of above-mentioned motar: is 0.6 with above-mentioned motar by water cement ratio, adds water.As shown in Table 2, every performance of masonry mortar satisfies " steam-pressing aero-concrete masonry mortar and plastering mortar " related request (JC890-2001).
Embodiment 2:
1. the preparation of building waste micro mist: after discarded concrete carried out fragmentation, screening, secondary breaking, can realize separating of aggregate and mortar, mortar powder particle size≤5mm, grinding to specific surface area is 3500cm in ball mill 2/ g.
2. the preparation of modified ardealite: after phosphogypsum, unslaked lime and flyash mixed by mass ratio at 13: 6: 1,, use the ball mill grinding again to specific surface area 3000cm at 80 ℃ of oven dry 2h down 2/ g gets modified ardealite.Wherein the radioactivity of phosphogypsum all meets " the radioactive material nucleic is limited the quantity of " related request (GB6566-2001).
3. exciting agent is CaSO 4With Na 2SiO 39H 2O is 1: 2 mixing gained by mass ratio.
4. by the shared weight percent of each starting material be: cement 10%, modified ardealite 20%, construction waste powder 25%, sand 40%, exciting agent: 4.5%, water-holding agent: 0.3%, anti-fissuring agent: 0.2%, choose raw material, each starting material is mixed, get motar.
Embodiment 3:
1. the preparation of building waste micro mist: after discarded concrete carried out fragmentation, screening, secondary breaking, can realize separating of aggregate and mortar, mortar powder particle size≤5mm, grinding to specific surface area is 3000cm in ball mill 2/ g.
2. the preparation of modified ardealite: after phosphogypsum, unslaked lime and flyash mixed by mass ratio at 8: 4: 1,, use the ball mill grinding again to specific surface area 3300cm at 80 ℃ of oven dry 2h down 2/ g gets modified ardealite.Wherein the radioactivity of phosphogypsum all meets " the radioactive material nucleic is limited the quantity of " related request (GB6566-2001).
3. exciting agent is CaSO 4With Na 2SiO 39H 2O is 1: 3 mixing gained by mass ratio.
4. by the shared weight percent of each starting material be: cement 12%, modified ardealite 23%, construction waste powder 25%, sand 36%, exciting agent: 3.7%, water-holding agent: 0.15%, anti-fissuring agent: 0.15%, choose raw material, each starting material is mixed, get motar.
Embodiment 4:
1. the preparation of building waste micro mist: after discarded concrete carried out fragmentation, screening, secondary breaking, can realize separating of aggregate and mortar, mortar powder particle size≤5mm, grinding to specific surface area is 3300cm in ball mill 2/ g.
2. the preparation of modified ardealite: after phosphogypsum, unslaked lime and flyash mixed by mass ratio at 10: 6: 1,, use the ball mill grinding again to specific surface area 3300cm at 80 ℃ of oven dry 2h down 2/ g gets modified ardealite.Wherein the radioactivity of phosphogypsum all meets " the radioactive material nucleic is limited the quantity of " related request (GB6566-2001).
3. exciting agent is CaSO 4With Na 2SiO 39H 2O is 1: 2 mixing gained by mass ratio.
4. by the shared weight percent of each starting material be: cement 16%, modified ardealite 25%, construction waste powder 20%, sand 35%, exciting agent: 3.7%, water-holding agent: 0.2%, anti-fissuring agent: 0.1%, choose raw material, each starting material is mixed, get motar.
Embodiment 5:
1. the raw material in example 1-4, mix 3% unslaked lime, grinding to specific surface area is 3000cm 2/ g.
2. by the shared weight percent of each starting material be: cement 15%, modified ardealite 22%, construction waste powder 23%, sand 32%, exciting agent: 4.6%, unslaked lime 3%, water-holding agent: 0.3%, anti-fissuring agent: 0.2%, choose raw material, each starting material is mixed, get motar.
The preparing raw material method is with example 1-4.
Embodiment 6:
1. the raw material in example 1-4, mix 5% unslaked lime, grinding to specific surface area is 3300cm 2/ g.
2. by the shared weight percent of each starting material be: cement 18%, modified ardealite 20%, construction waste powder 20%, sand 32%, exciting agent: 4.5%, unslaked lime 5%, water-holding agent: 0.4%, anti-fissuring agent: 0.1%, choose raw material, each starting material is mixed, get motar.
The preparing raw material method is with example 1-4.
Subordinate list
The chemical analysis of table 1 building waste micro mist
Figure GSA00000135372500051
The performance of table 2 motar
Figure GSA00000135372500052

Claims (9)

1. motar is characterized in that this motar mainly made by following raw material: cement 10%～20%, and modified ardealite 20%～30%, construction waste powder 20%～30%, sand 30%～40%, exciting agent 3%～5% is mass percent.
2. motar according to claim 1 is characterized in that mass percent in addition is 0.2%～0.6% water-holding agent, and this water-holding agent is a hydroxypropyl methyl cellulose ether, and its viscosity is 100000Pa.S.
3. motar according to claim 1 is characterized in that mass percent in addition is 0.1%～0.2% anti-fissuring agent, and this anti-fissuring agent is a polypropylene fibre.
4. motar according to claim 1, it is characterized in that: described modified ardealite is made up of phosphogypsum, unslaked lime and flyash, they are by mass ratio (7～13): (3～6): 1 mix after, dry 2h down at 80 ℃, use the ball mill grinding again to specific surface area 3000～3500cm 2/ g is resulting.
5. motar according to claim 1 is characterized in that: described construction waste powder is by the isolated mortar micro mist of discarded concrete, particle diameter≤5mm, and grinding is to specific surface area 2500～3500cm in ball mill 2/ g.
6. motar according to claim 1 is characterized in that: exciting agent is CaSO 4With Na 2SiO 39H 2The mixture of O, the two mass ratio are 1: (2～4).
7. the preparation method of a motar is characterized in that described motar is the described motar of arbitrary claim in the claim 1 to 6, and its preparation method may further comprise the steps:
(1) preparation of modified ardealite:
After phosphogypsum, lime and flyash mixed by proportioning,, be 3000～3500cm with ball mill grinding to specific surface area then at 80 ℃ of baking 2h down 2/ g;
(2) preparing construction waste powder:
Discarded concrete is carried out fragmentation, screening, secondary breaking, realize separating of aggregate and mortar, isolate the particle diameter≤5mm of mortar, grinding is to specific surface area 2500～3500cm in ball mill 2/ g;
(3) preparation of exciting agent:
Press proportioning with CaSO 4With Na 2SiO 39H 2O mixes;
(4) preparation of motar:
Cement, sand and above-mentioned modified ardealite, construction waste powder, exciting agent are taken by weighing by prescription, then they are mixed, be ground to specific surface area 3500～4500cm 2/ g obtains described motar,
Perhaps, cement, sand and above-mentioned modified ardealite, construction waste powder, exciting agent, water-holding agent and anti-fissuring agent are taken by weighing by prescription, then they are mixed, grinding is to specific surface area 3500～4500cm 2/ g obtains described motar.
8. method according to claim 7, it is characterized in that taking by weighing by cement 15%, modified ardealite 25%, construction waste powder 20%, sand 35%, exciting agent 4.6%, water-holding agent 0.3% and anti-fissuring agent 0.1% earlier, be mass percent, then they are mixed, grinding is to specific surface area 3500cm 2/ g obtains described motar.
9. method according to claim 7, it is characterized in that taking by weighing by cement 20%, modified ardealite 20%, construction waste powder 25%, sand 30%, exciting agent 4.5%, water-holding agent 0.3% and anti-fissuring agent 0.2% earlier, be mass percent, then they are mixed, grinding is to specific surface area 4500cm 2/ g obtains described motar.
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CN102584118A (en) * 2012-01-09 2012-07-18 武汉理工大学 Environment-friendly high-performance waterproof flame-retardant plastering mortar and preparation method thereof
CN103601432A (en) * 2013-11-22 2014-02-26 苏州科技学院 Plaster anti-crack mortar dry powder based on autoclaved powder ash air-entrained concrete waste
CN103641348A (en) * 2013-12-11 2014-03-19 安徽城建检测科技有限公司 Pump concrete cement admixture
CN105084852A (en) * 2015-09-15 2015-11-25 江苏锦宇环境工程有限公司 Preparation method of phosphogypsum-base composite thermal-insulation mortar
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102584118A (en) * 2012-01-09 2012-07-18 武汉理工大学 Environment-friendly high-performance waterproof flame-retardant plastering mortar and preparation method thereof
CN102584118B (en) * 2012-01-09 2013-10-02 武汉理工大学 Environment-friendly high-performance waterproof flame-retardant plastering mortar and preparation method thereof
CN103601432A (en) * 2013-11-22 2014-02-26 苏州科技学院 Plaster anti-crack mortar dry powder based on autoclaved powder ash air-entrained concrete waste
CN103641348A (en) * 2013-12-11 2014-03-19 安徽城建检测科技有限公司 Pump concrete cement admixture
CN105084852A (en) * 2015-09-15 2015-11-25 江苏锦宇环境工程有限公司 Preparation method of phosphogypsum-base composite thermal-insulation mortar
CN107117921A (en) * 2017-06-12 2017-09-01 贵州中建建筑科研设计院有限公司 A kind of gypsum-based construction garbage regeneration sand decorative mortar and preparation method thereof
CN112521118A (en) * 2020-12-04 2021-03-19 武汉理工大学 Red surface decoration plastering gypsum based on wet-grinding superfine waste red brick slurry
CN114349458A (en) * 2022-01-26 2022-04-15 大连海事大学 Environment-friendly plastering mortar and preparation method thereof

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