CN101381219A - Phosphate fast repairing building material - Google Patents

Phosphate fast repairing building material Download PDF

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Publication number
CN101381219A
CN101381219A CNA2008102009217A CN200810200921A CN101381219A CN 101381219 A CN101381219 A CN 101381219A CN A2008102009217 A CNA2008102009217 A CN A2008102009217A CN 200810200921 A CN200810200921 A CN 200810200921A CN 101381219 A CN101381219 A CN 101381219A
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CN
China
Prior art keywords
phosphate
fast repairing
repairing building
building material
percent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA2008102009217A
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Chinese (zh)
Inventor
陈兵
陈龙珠
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Shanghai Jiaotong University
Original Assignee
Shanghai Jiaotong University
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Filing date
Publication date
Application filed by Shanghai Jiaotong University filed Critical Shanghai Jiaotong University
Priority to CNA2008102009217A priority Critical patent/CN101381219A/en
Publication of CN101381219A publication Critical patent/CN101381219A/en
Pending legal-status Critical Current

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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
    • C04B28/34—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 cold phosphate binders
    • C04B28/344—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 cold phosphate binders the phosphate binder being present in the starting composition solely as one or more phosphates
    • 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
    • C04B2111/72—Repairing or restoring existing buildings or building materials
    • 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)
  • Working Measures On Existing Buildindgs (AREA)

Abstract

The invention discloses a phosphate quick repairing building material, which belongs to the technical field of building engineering. The material comprises the following components in weight percentage: 30 to 45 percent of dihydric phosphate, 5 to 25 percent of metal oxide powder, 20 to 60 percent of fly ash and 5 to 10 percent of regulated-set material. In the invention, as required by the project, the consumption of the regulated- set material can be adjusted, thereby realizing the setting and hardening time from a few minutes to a few hours. The material has the advantages of high binding strength, no final strength loss and micro expansion during the setting and the hardening, and can be applied in various fields, particularly the material can still be quickly set and hardened at low temperature.

Description

Phosphate fast repairing building material
Technical field
What the present invention relates to is a kind of material of construction of construction engineering technical field, and specifically, what relate to is a kind of phosphate fast repairing building material.
Background technology
In road and construction work, meet some eager salvagings through regular meeting, (as earthquake, flood, snow disaster etc.) seems more urgent when particularly running into natural disaster.Therefore, being used for the quick material of construction of rushing to repair for many years constantly occurs.At present, the domestic material of construction that is used for repairing fast mainly contain mineral-type with organic class.Mineral-type mainly is that to utilize some special cements (as high-alumina cement, aluminosulfate cement etc.) or silicate cement to add quick-setting additive formulated, the construction of these fast repairing materials is simple, low price but intensity is generally lower and relatively poor with original construction bonds power.As Chinese patent publication number: CN1654411A, patent name: a kind of fast repairing concrete material and application method thereof, this invention has proposed the employing quick hardening sulphoaluminate and some admixtures constitute, can improve intensity in patching material 2-6 hour fast, Chinese patent publication number: CN101096304A and for example, patent name: build, build the road and use fast repairing material, this invention has adopted aluminosulfate cement and silicate cement and ground blast furnace slag to be composited equally, and prepared fast repairing material has functions such as rapid construction.Organic class mainly be some Resins, epoxy, the high molecular polymers that methyl methacrylate, initiator and softening agent are composited etc. also have some inorganic and organic being composited in addition.The common price comparison costliness of this class, but because what adopt is organic polymer, and it is anti-aging, long-term performance such as uvioresistant and solar radiation is difficult to guarantee.This class fast repairing material such as Chinese patent publication number: CN117092C, patent name: a kind of patching material in quick modified polymer, this invention is altered contents with styrene-butadiene rubber(SBR), being equipped with yellow soda ash and trolamine is promotor, all helpful for cohesive force between the folding strength that improves patching material and raising and the old concrete.Chinese patent publication number: CN1303034C and for example, patent name: polymer cement base fast repairing material and preparation method, it is formulated that this invention is carried out modification with the redispersible latex powder to high-alumina cement and silicate cement.For above-mentioned all kinds of fast repairing materials, all have in the market and sell and in engineering, represented certain effect, but also exist certain deficiency, as, mineral-type, the not high and later strength of cohesive force can not get guaranteeing between itself and old concrete; Organic class, its ageing resistance remains further to be improved.
Summary of the invention
The objective of the invention is at deficiency of the prior art and defective, a kind of phosphate fast repairing building material is provided, can realize quick repairing, reinforcing, antiseepage effect, viscosifying power is strong, is applicable to multiple occasion (the particularly area of low temperature and corrosion-vulnerable).
The present invention is achieved by the following technical solutions, and the present invention is composited by a certain percentage by dihydrogen phosphate, metal oxide powder, flyash and accent gel material, and its each weight percentages of components is:
Dihydrogen phosphate 30-45%
Metal oxide powder 5-25%
Transfer gel material 5-10%
The flyash surplus.
The present invention mixes packed the forming in back according to the above ratio by above various materials.At the construction field (site), weighing 18-25% water and its mix and the repairing of constructing rapidly by weight as required also can add the mix construction with it of a certain amount of river sand by weight according to engineering demand.The present invention utilizes dihydrogen phosphate and metal-powder that chemical reaction takes place rapidly, the insoluble phosphate of generation and have higher cohesive force.Reduce cost by mixing a large amount of flyash, thereby and some metal oxides that contain in the flyash can improve its intensity with its generation chemical reaction.In addition, the silicate in the old concrete also can with its generation chemical reaction, thereby improved its interfacial adhesion.
Described dihydrogen phosphate can select for use potassium primary phosphate, primary ammonium phosphate, SODIUM PHOSPHATE, MONOBASIC, monocalcium phosphate etc. wherein one or more, preferentially select potassium primary phosphate or primary ammonium phosphate for use, its grain diameter should be less than 100um.
Described metal oxide powder can select for use burned magnesium oxide, calcium oxide, ferric oxide, ferric oxide, aluminium sesquioxide etc. wherein one or more, preferentially selected burned magnesium oxide for use, its grain diameter scope is 2um-100um.
Described flyash can select for use II level flyash, III level flyash and high-calcium fly ass wherein a kind of, is existing matured product.
Described accent gel material can be selected boric acid, borax, citric acid for use, preferentially selects borax powder for use.
The present invention claims required dihydrogen phosphate by formula rate, metal oxide, and flyash and accent gel material stir in stirrer, form product, pack.
The invention has the advantages that: fast solidifying, its setting and harden time can be from several minutes to 2 hour; The early strength height, intensity can reach 30MPa in 1 day; Be applicable under the various envrionment conditionss and construct, especially in the construction of cold district; And between the old concrete cohesive strength high and can with various impurity bondings such as dust; During setting and harden, the volume microdilatancy, later strength does not have retraction; Good endurance and have stronger acid-fast alkali-proof; Nontoxic pollution-free.
Embodiment
Below embodiments of the invention are elaborated: present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment 1
Each component of present embodiment phosphate fast repairing building material with and weight percent be:
Potassium primary phosphate 30%
Magnesium oxide 15%
Borax 10%
The flyash surplus.
Take by weighing various starting material according to the above ratio, fully stir in stirrer, the back of waiting to stir forms product, packs, and obtains phosphate fast repairing building material.
Phosphate fast repairing building material and water, the sand of preparation are mixed and stirred in following ratio and is prepared into mortar, patching material: sand: water is 1:0.5:0.25 (for mass ratio), damages the highway section at certain and repairs and make simultaneously sample and carry out test time of coagulation.Highway section after the repairing was open to traffic after 1 hour, and through the observation of one-month period, road is intact.The sample testing result of made is as follows: solidified in 30 minutes, ultimate compression strength is 30MPa after 1 day, 28 days ultimate compression strength 35MPa.
Embodiment 2
Each component of present embodiment fast repairing material with and weight percent be:
Phosphoric acid dihydro amine 45%
Magnesium oxide 25%
Citric acid 5%
The flyash surplus.
On take by weighing various starting material according to the above ratio, in stirrer, fully stir, the back of waiting to stir forms product, packs, and obtains phosphate fast repairing building material.
The phosphate fast repairing building material and the following ratio of water of preparation are mixed and stirred and be prepared into mortar, patching material: water is 1:0.20 (for mass ratio), and a certain cold district (temperature was about subzero 10 degree at that time), the bridge floor of one section damage carries out reparation construction.Bridge floor after the repairing was open to traffic after 1 day, observed after 3 months, repaired bridge floor and did not have any damage.The sample testing result of made is as follows: 2 hours setting and hardens, and ultimate compression strength reaches 25MPa after 1 day, and ultimate compression strength is 45MPa after 28 days.
Embodiment 3
Each component of present embodiment fast repairing material with and weight percent be:
Potassium primary phosphate 30%
Calcium oxide 5%
Boric acid 5%
The flyash surplus.
Take by weighing various starting material according to the above ratio, fully stir in stirrer, the back of waiting to stir forms product, packs, and obtains phosphate fast repairing building material.
Phosphate fast repairing building material and the water of preparation mixed and stirred in following ratio be prepared into mending mortar, patching material: water is 1:0.18 (being mass ratio), and repairs at certain Sewage Plant sewage lagoon.Repair and came into operation in back 2 hours, observe it not have any crack and damage after half a year.The sample of made, test result is as follows: 25 minutes setting and hardens, ultimate compression strength is 10MPa after 1 hour, and ultimate compression strength is 33MPa after 1 day, and ultimate compression strength is 40Mpa after 28 days.
Embodiment 4
Each component of present embodiment fast repairing material with and weight percent be:
Potassium primary phosphate 25%
Monocalcium phosphate 20%
Calcium oxide 15%
Magnesium oxide 10%
Borax 10%
The flyash surplus.
Take by weighing various starting material according to the above ratio, fully stir in stirrer, the back of waiting to stir forms product, packs, and obtains phosphate fast repairing building material.
Phosphate fast repairing building material and sand, the water of preparation mixed and stirred in following ratio be prepared into mending mortar, patching material: sand: water is 1:0.5:0.25 (for mass ratio), and is used for a certain motorway and damages and section carry out field patch.Repair and came into operation in back 1 hour, observe it not have any crack and damage after half a year.The sample of made, test result is as follows: 20 minutes setting and hardens, ultimate compression strength is 15MPa after 1 hour, and ultimate compression strength is 40MPa after 1 day, and ultimate compression strength is 42MPa after 28 days.

Claims (9)

1, a kind of phosphate fast repairing building material is characterized in that, component that comprises and weight percent are: dihydrogen phosphate 30-45%, metal oxide powder 5-25% transfers gel material 5-10%, the flyash surplus.
2, phosphate fast repairing building material as claimed in claim 1 is characterized in that, described dihydrogen phosphate be in potassium primary phosphate, primary ammonium phosphate, SODIUM PHOSPHATE, MONOBASIC or the monocalcium phosphate one or more.
3, phosphate fast repairing building material as claimed in claim 1 or 2 is characterized in that, described dihydrogen phosphate is potassium primary phosphate or primary ammonium phosphate.
4, phosphate fast repairing building material as claimed in claim 1 or 2 is characterized in that, described dihydrogen phosphate, and its grain diameter is less than 100um.
5, phosphate fast repairing building material as claimed in claim 1 is characterized in that, described metal oxide powder be in burned magnesium oxide, calcium oxide, ferric oxide, ferric oxide or the aluminium sesquioxide one or more.
As claim 1 or 5 described phosphate fast repairing building materials, it is characterized in that 6, described metal oxide powder was a burned magnesium oxide.
7, as claim 1 or 5 described phosphate fast repairing building materials, it is characterized in that, described metal oxide powder, its grain diameter scope is 2um-100um.
8, phosphate fast repairing building material as claimed in claim 1 is characterized in that, described accent gel material is that boric acid, borax, citric acid are wherein a kind of.
As claim 1 or 8 described phosphate fast repairing building materials, it is characterized in that 9, described accent gel material is a borax powder.
CNA2008102009217A 2008-10-09 2008-10-09 Phosphate fast repairing building material Pending CN101381219A (en)

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Application Number Priority Date Filing Date Title
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Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102155564A (en) * 2011-02-28 2011-08-17 厦门建霖工业有限公司 Enhanced ceramic metal water tap and preparation method thereof
CN102390943A (en) * 2011-07-27 2012-03-28 中国科学院青海盐湖研究所 Magnesium phosphate cement prepared by using magnesium oxide byproduct in process of extracting lithium carbonate from salt lake
WO2012054429A1 (en) * 2010-10-21 2012-04-26 United States Gypsum Company High strength phosphate-based cement having low alkalinity
CN102643073A (en) * 2012-05-02 2012-08-22 河海大学 Magnesium phosphate cement grout material
CN103289703A (en) * 2013-07-05 2013-09-11 浙江工业大学 Early-strength soil solidifying agent and manufacturing method and application for same
CN103508690A (en) * 2013-09-17 2014-01-15 安徽循环经济技术工程院 Novel inorganic binding material capable of bonding various substances and preparation method of novel inorganic binding material
CN103570265A (en) * 2013-09-02 2014-02-12 盐城工学院 Magnesium potassium phosphate cement-based concrete adhesive and preparation method thereof
CN104047302A (en) * 2014-06-17 2014-09-17 河海大学 Applications of phosphate and magnesium oxide in seepage prevention of refuse disposal site
CN104402387A (en) * 2014-11-06 2015-03-11 福州大学 Pre-stressed pipe pile end plate magnesium cement base antiseptic and use method thereof
CN104844035A (en) * 2015-04-01 2015-08-19 重庆大学 Interface reinforcer preparation method and application of interface reinforcer
CN105036695A (en) * 2015-07-28 2015-11-11 盐城工学院 Repairing and protecting layer for reinforced concrete structure body and construction method of repairing and protecting layer
CN105174879A (en) * 2015-07-29 2015-12-23 卓达新材料科技集团有限公司 Indoor high-intensity rapid-setting repairing material and preparation method therefor
CN105275221A (en) * 2015-05-28 2016-01-27 盐城工学院 Method for reinforcing concrete constructions
CN105294049A (en) * 2015-10-12 2016-02-03 广西交通科学研究院 Special cement-base patching material and cement concrete pavement quick repairing method
RU2574636C2 (en) * 2010-10-21 2016-02-10 Юнайтед Стэйтс Джипсум Компани Highly-strong phosphate-based cement with low alkalinity
CN105601248A (en) * 2015-12-24 2016-05-25 杭州修路人科技有限公司 Material for assembled simply supported hollow plate bridge hinge joint and application method of material
CN106187056A (en) * 2016-06-13 2016-12-07 郭琳琳 A kind of inorganic moulding material for 3D printing technique and preparation method
CN106336186A (en) * 2016-03-04 2017-01-18 赵国升 Quick-dry volatile organic compound (VOC) gas leakage stopping inorganic material coating
CN107162562A (en) * 2017-06-22 2017-09-15 同济大学 A kind of subway tunnel concrete rapid restoring material and its preparation method and application
CN107428615A (en) * 2014-12-23 2017-12-01 圣戈班韦伯公司 Acid/base binding agent comprising the cement based on phosphate compounds
CN108863292A (en) * 2018-07-19 2018-11-23 贵州磷镁材料有限公司 A kind of repairing concrete crack material and its construction technology based on phosphorus magnesium material
CN109020468A (en) * 2018-09-28 2018-12-18 俞家欢 A kind of anti-deicer salts cement base irrigation canals and ditches healant
CN109626951A (en) * 2019-01-14 2019-04-16 青岛理工大学 A kind of magnesium phosphate cement
CN109942232A (en) * 2017-12-21 2019-06-28 兴业县银基混凝土有限公司 A kind of clear-water concrete
CN111056815A (en) * 2019-11-28 2020-04-24 广州市北二环交通科技有限公司 Slow-setting high-toughness magnesium phosphate cement road rapid repair material
CN113943143A (en) * 2021-12-02 2022-01-18 江苏尼高科技有限公司 Grouting material for hollowing repair of exterior wall facing brick and preparation method thereof
CN115746590A (en) * 2022-09-29 2023-03-07 江苏科技大学 Sulphoaluminate cement modified ammonium phosphate magnesium-based steel anticorrosive coating material and preparation method thereof

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103140453B (en) * 2010-10-21 2016-01-20 美国石膏公司 There is the high strength phosphate-based cements of low alkalinity
WO2012054429A1 (en) * 2010-10-21 2012-04-26 United States Gypsum Company High strength phosphate-based cement having low alkalinity
CN103140453A (en) * 2010-10-21 2013-06-05 美国石膏公司 High strength phosphate-based cement having low alkalinity
JP2013540098A (en) * 2010-10-21 2013-10-31 ユナイテッド・ステイツ・ジプサム・カンパニー High-strength phosphate cement with low alkalinity
RU2574636C2 (en) * 2010-10-21 2016-02-10 Юнайтед Стэйтс Джипсум Компани Highly-strong phosphate-based cement with low alkalinity
US8663382B2 (en) 2010-10-21 2014-03-04 United States Gypsum Company High strength phosphate-based cement having low alkalinity
CN102155564B (en) * 2011-02-28 2013-03-27 厦门建霖工业有限公司 Enhanced ceramic metal water tap and preparation method thereof
CN102155564A (en) * 2011-02-28 2011-08-17 厦门建霖工业有限公司 Enhanced ceramic metal water tap and preparation method thereof
CN102390943A (en) * 2011-07-27 2012-03-28 中国科学院青海盐湖研究所 Magnesium phosphate cement prepared by using magnesium oxide byproduct in process of extracting lithium carbonate from salt lake
CN102390943B (en) * 2011-07-27 2013-10-02 中国科学院青海盐湖研究所 Magnesium phosphate cement prepared by using magnesium oxide byproduct in process of extracting lithium carbonate from salt lake
CN102643073A (en) * 2012-05-02 2012-08-22 河海大学 Magnesium phosphate cement grout material
CN103289703A (en) * 2013-07-05 2013-09-11 浙江工业大学 Early-strength soil solidifying agent and manufacturing method and application for same
CN103570265A (en) * 2013-09-02 2014-02-12 盐城工学院 Magnesium potassium phosphate cement-based concrete adhesive and preparation method thereof
CN103570265B (en) * 2013-09-02 2016-01-20 盐城工学院 A kind of potassium magnesium phosphate cement-base concrete tackiness agent and preparation method thereof
CN103508690A (en) * 2013-09-17 2014-01-15 安徽循环经济技术工程院 Novel inorganic binding material capable of bonding various substances and preparation method of novel inorganic binding material
CN104047302B (en) * 2014-06-17 2015-11-18 河海大学 The automatic seepage control system in a kind of garbage disposal plant
CN104047302A (en) * 2014-06-17 2014-09-17 河海大学 Applications of phosphate and magnesium oxide in seepage prevention of refuse disposal site
CN104402387A (en) * 2014-11-06 2015-03-11 福州大学 Pre-stressed pipe pile end plate magnesium cement base antiseptic and use method thereof
CN104402387B (en) * 2014-11-06 2016-06-29 福州大学 A kind of pile for prestressed pipe end plate magnesium cement based preservative and using method thereof
CN107428615A (en) * 2014-12-23 2017-12-01 圣戈班韦伯公司 Acid/base binding agent comprising the cement based on phosphate compounds
CN104844035A (en) * 2015-04-01 2015-08-19 重庆大学 Interface reinforcer preparation method and application of interface reinforcer
CN105275221A (en) * 2015-05-28 2016-01-27 盐城工学院 Method for reinforcing concrete constructions
CN105036695A (en) * 2015-07-28 2015-11-11 盐城工学院 Repairing and protecting layer for reinforced concrete structure body and construction method of repairing and protecting layer
CN105174879A (en) * 2015-07-29 2015-12-23 卓达新材料科技集团有限公司 Indoor high-intensity rapid-setting repairing material and preparation method therefor
CN105294049A (en) * 2015-10-12 2016-02-03 广西交通科学研究院 Special cement-base patching material and cement concrete pavement quick repairing method
CN105601248A (en) * 2015-12-24 2016-05-25 杭州修路人科技有限公司 Material for assembled simply supported hollow plate bridge hinge joint and application method of material
CN106336186A (en) * 2016-03-04 2017-01-18 赵国升 Quick-dry volatile organic compound (VOC) gas leakage stopping inorganic material coating
CN106187056A (en) * 2016-06-13 2016-12-07 郭琳琳 A kind of inorganic moulding material for 3D printing technique and preparation method
CN106187056B (en) * 2016-06-13 2018-05-29 郭琳琳 A kind of inorganic moulding material and preparation method for 3D printing technique
CN107162562A (en) * 2017-06-22 2017-09-15 同济大学 A kind of subway tunnel concrete rapid restoring material and its preparation method and application
CN109942232A (en) * 2017-12-21 2019-06-28 兴业县银基混凝土有限公司 A kind of clear-water concrete
CN108863292A (en) * 2018-07-19 2018-11-23 贵州磷镁材料有限公司 A kind of repairing concrete crack material and its construction technology based on phosphorus magnesium material
CN109020468A (en) * 2018-09-28 2018-12-18 俞家欢 A kind of anti-deicer salts cement base irrigation canals and ditches healant
CN109020468B (en) * 2018-09-28 2021-02-02 俞家欢 Anti-deicing salt cement-based ditch repairing agent
CN109626951A (en) * 2019-01-14 2019-04-16 青岛理工大学 A kind of magnesium phosphate cement
CN111056815A (en) * 2019-11-28 2020-04-24 广州市北二环交通科技有限公司 Slow-setting high-toughness magnesium phosphate cement road rapid repair material
CN111056815B (en) * 2019-11-28 2022-03-11 广州市北二环交通科技有限公司 Slow-setting high-toughness magnesium phosphate cement road rapid repair material
CN113943143A (en) * 2021-12-02 2022-01-18 江苏尼高科技有限公司 Grouting material for hollowing repair of exterior wall facing brick and preparation method thereof
CN113943143B (en) * 2021-12-02 2022-11-18 江苏尼高科技有限公司 Grouting material for hollowing repair of exterior wall facing brick and preparation method thereof
CN115746590A (en) * 2022-09-29 2023-03-07 江苏科技大学 Sulphoaluminate cement modified ammonium phosphate magnesium-based steel anticorrosive coating material and preparation method thereof
CN115746590B (en) * 2022-09-29 2023-10-03 江苏科技大学 Sulphoaluminate cement modified magnesium ammonium phosphate based steel anticorrosive coating material and preparation method thereof

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