CN105837141A - Acid-resistant dry-mixed mortar - Google Patents
Acid-resistant dry-mixed mortar Download PDFInfo
- Publication number
- CN105837141A CN105837141A CN201610260972.3A CN201610260972A CN105837141A CN 105837141 A CN105837141 A CN 105837141A CN 201610260972 A CN201610260972 A CN 201610260972A CN 105837141 A CN105837141 A CN 105837141A
- Authority
- CN
- China
- Prior art keywords
- cement
- mixed mortar
- dry
- slag
- acid
- 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
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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
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous cements
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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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/14—Waste materials; Refuse from metallurgical processes
-
- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/40—Compounds containing silicon, titanium or zirconium or other organo-metallic compounds; Organo-clays; Organo-inorganic complexes
- C04B24/42—Organo-silicon compounds
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses acid-resistant dry-mixed mortar which comprises the following components in percentage by mass: combined cement, casting waste sand, yellow ground, coal ash, slag powder, lithium slag, wood fiber, cellulose ether, a redispersible polymer and polysiloxane powder. Compared with the prior art, the acid-resistant dry-mixed mortar has the following advantages that the addition ratio of the combined cement is appropriately increased; a part of the yellow ground is replaced by the casting waste slag and the lithium slag, so that the difficulty that the yellow ground is in supply shortage is alleviated, and the preparation cost is lowered; meanwhile, under the action of the polysiloxane powder and on premise that the strength of the dry-mixed mortar is ensured, the lithium slag and the combined cement can improve the acid resistance of the dry-mixed mortar, and after the dry-mixed mortar is used normally, the erosion rate of the dry-mixed mortar in an acid environment is less than 1% within two years, and the compressive strength of the dry-mixed mortar is reduced by about 8% after two years, being of relatively optimal levels.
Description
Technical field
The invention belongs to building material technical field, be specifically related to a kind of acid resistance dry powder and mortar.
Background technology
Dry powder and mortar refers to the aggregate that drying screening processes, a kind of graininess that inorganic coagulation material and additive etc. mix by a certain percentage or powdery, wherein additive is water-retaining agent, thickening agent, polymer etc., it is transported to building site with form packed or in bulk, add water the material that i.e. can be used directly after mixing and stirring, compare with conventional on-site stirring mortar, dry powder and mortar has: best in quality, wide in variety, have good workability, easy to use, environmental protection, economic dispatch feature, wherein the aggregate used by dry powder and mortar is mainly natural yellow ground, its demand is bigger, but yellow ground is non-renewable resources, its price is also constantly rising violently, along with country's protection to natural river course, the exploitation of natural yellow ground will necessarily be limited, the resource making yellow ground is more and more nervous, therefore, need to research and develop other materials and replace the use of a small amount of even major part yellow ground.
Additionally, along with science and technology develops rapidly with industrial, construction material is on the rise by the corrosion of adverse circumstances, it is generally the case that construction material is all in alkalescence or alkalescence, more sensitive to sour environment, by studying existing data, acids corrosion affects the performance of construction material to a certain extent, in order to ensure safe operation and the life-time service of building, need to be improved in conventional dry powder and mortar, thus play the purpose of use antiacid, lasting.
Summary of the invention
It is an object of the invention to for existing dry powder and mortar material source not enough, the problem that acid-resisting is poor, it is provided that a kind of acid resistance dry powder and mortar.
The present invention is achieved by the following technical solutions: a kind of acid resistance dry powder and mortar, comprise following component, and the mass percent of each composition is: combination cement 25-35%, cast waste sand 25-35%, yellow ground 30-40%, flyash 2-6%, slag powders 10-15%, lithium slag 10-15%, wood fibre 0.6-0.8%, cellulose ether 0.2-0.4%, redispersible polymer 0.02-0.04%, polysiloxanes powder 0.06-0.08%；
Wherein, described combination cement is crystallization cement, high sulfuric-resisting portland cement and the compositions of quick hardening sulphoaluminate cement, and portfolio ratio is 1:1.2-1.5:1.8-2, and combination mortar can keep stable under the sour environment of PH ＞ 2；
Wherein, described flyash is I level flyash；
Wherein, described lithium slag is acid slag, and particle diameter is less than 0.08mm, generates jello in lithium slag when active component and ripening mineral aquation, and gelinite compactness is relatively strong, improves mortar and uses the comprcssive strength in later stage；
Wherein, described wood fibre is ash color fibre, a length of 800-1500 μm, this wood fibre can build 3-D solid structure in mortar, improves workability, it is possible to effectively water guide, preventing Mortar shrinkage from ftractureing, auxiliary strengthens combination cement, lithium slag and the Antacid effectiveness of polysiloxanes powder.
As further improvement of these options, described redispersible polymer is ethylene carbonate-vinyl acetate copoly type high molecular polymer.
The present invention has the advantage that the adding proportion suitably adding combination cement in this invention compared to existing technology, casting waste residue and lithium slag is selected to replace part yellow ground, alleviate yellow ground and reduce a difficult problem for supply, reduce cost of manufacture, simultaneously, lithium slag and combination cement are under the effect of polysiloxanes powder, on the premise of ensureing dry powder and mortar strength character, the acid-resisting of reinforced mortar, after normal use, within 2 years, in sour environment, erosion ratio is less than 1%, and its comprcssive strength reduces about 8% after two years, belongs to more excellent level.
Detailed description of the invention
Embodiment 1
A kind of acid resistance dry powder and mortar, comprises following component, and the mass percent of each composition is: combination cement 25%, cast waste sand 10%, yellow ground 34%, flyash 3%, slag powders 12%, lithium slag 15%, wood fibre 0.6%, cellulose ether 0.3%, redispersible polymer 0.03%, polysiloxanes powder 0.07%；
Wherein, described combination cement is crystallization cement, high sulfuric-resisting portland cement and the compositions of quick hardening sulphoaluminate cement, and portfolio ratio is 1:1.2:2.
Embodiment 2
A kind of acid resistance dry powder and mortar, comprises following component, and the mass percent of each composition is: combination cement 28%, cast waste sand 6%, yellow ground 36%, flyash 5%, slag powders 10%, lithium slag 12%, wood fibre 0.7%, cellulose ether 0.2%, redispersible polymer 0.04%, polysiloxanes powder 0.06%；
Wherein, described combination cement is crystallization cement, high sulfuric-resisting portland cement and the compositions of quick hardening sulphoaluminate cement, and portfolio ratio is 1:1.3:1.9.
Embodiment 3
A kind of acid resistance dry powder and mortar, comprises following component, and the mass percent of each composition is: combination cement 30%, cast waste sand 5%, yellow ground 38%, flyash 2%, slag powders 14%, lithium slag 10%, wood fibre 0.7%, cellulose ether 0.2%, redispersible polymer 0.02%, polysiloxanes powder 0.08%；
Wherein, described combination cement is crystallization cement, high sulfuric-resisting portland cement and the compositions of quick hardening sulphoaluminate cement, and portfolio ratio is 1:1.5:1.8.
The combination cement of 25% is replaced with single sand, respectively matched group 1-3, replaces with two kinds of sand, respectively 4-6, concrete corresponding as follows:
| Group | Cement | Proportioning |
| Matched group 1 | Crystallization cement | / |
| Matched group 2 | High sulfuric-resisting portland cement | / |
| Matched group 3 | Quick hardening sulphoaluminate cement | / |
| Matched group 4 | Crystallization cement and high sulfuric-resisting portland cement | 1:1.5 |
| Matched group 5 | Crystallization cement and quick hardening sulphoaluminate cement | 1:2 |
| Matched group 6 | High sulfuric-resisting portland cement and quick hardening sulphoaluminate cement | 1:1.2 |
Table 1
Under the experimental situation of PH=2, respectively in 7 days, 14 days, 28 days, 56 days, 84 days and the extent of corrosion of 126 days detection mortars and resistance to compression degree, result is as follows:
Table 1
Table 2
Be can be seen that by data in Tables 1 and 2, in embodiment 1-3, acid resistance is higher, and persistence is preferable, comprcssive strength just started on a declining curve after 28 days, and matched group 1-6, comprcssive strength begins on a declining curve after 28 days, and matched group 4-6, degree is declined big in comprcssive strength, it follows that three groups of cement composition are better than being used alone or using two-by-two, it are used alone and are better than using two-by-two at anaphase effect, three kinds of cement composition are mainly selected to use, it is also possible to select other compound modes according to different needs.
Claims (2)
1. an acid resistance dry powder and mortar, it is characterised in that comprise following component, and the mass percent of each composition is: combination cement 25-35%, cast waste sand 5-10%, yellow ground 30-40%, flyash 2-6%, slag powders 10-15%, lithium slag 10-15%, wood fibre 0.6-0.8%, cellulose ether 0.2-0.4%, redispersible polymer 0.02-0.04%, polysiloxanes powder 0.06-0.08%；
Wherein, described combination cement is crystallization cement, high sulfuric-resisting portland cement and the compositions of quick hardening sulphoaluminate cement, and portfolio ratio is 1:1.2-1.5:1.8-2；
Wherein, described flyash is I level flyash；
Wherein, described lithium slag is acid slag, and particle diameter is less than 0.08mm；
Wherein, described wood fibre is ash color fibre, a length of 800-1500 μm.
2. a kind of acid resistance dry powder and mortar, it is characterised in that described redispersible polymer is ethylene carbonate-vinyl acetate copoly type high molecular polymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610260972.3A CN105837141A (en) | 2016-04-26 | 2016-04-26 | Acid-resistant dry-mixed mortar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610260972.3A CN105837141A (en) | 2016-04-26 | 2016-04-26 | Acid-resistant dry-mixed mortar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105837141A true CN105837141A (en) | 2016-08-10 |
Family
ID=56590311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610260972.3A Pending CN105837141A (en) | 2016-04-26 | 2016-04-26 | Acid-resistant dry-mixed mortar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105837141A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109369110A (en) * | 2018-12-06 | 2019-02-22 | 江西省建筑材料工业科学研究设计院 | A kind of reinforcement type cement base lithium slag grouting material |
| CN109665792A (en) * | 2019-02-28 | 2019-04-23 | 莒县铭通建材有限公司 | A kind of plastering mortar and preparation method thereof |
| CN111848029A (en) * | 2020-07-07 | 2020-10-30 | 深圳市汉工造技术有限公司 | Lithium slag modified ultra-high performance concrete product and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838129A (en) * | 2010-04-30 | 2010-09-22 | 常州市众华建材科技有限公司 | Premixed dry mortar |
| CN102126848A (en) * | 2011-02-10 | 2011-07-20 | 乌鲁木齐市建筑建材科学研究院有限责任公司 | Cement-based self-leveling dry powder mortar for high-cracking-resistance ground |
| CN102173690A (en) * | 2011-01-05 | 2011-09-07 | 广东美涂士建材股份有限公司 | Acid-rain-resistant mortar for exterior wall base material processing |
| KR20130057024A (en) * | 2011-11-23 | 2013-05-31 | 엔아이테크 주식회사 | The giopolymer binder using waste disc and the fireproofing mortar composition using thereof |
| CN104030644A (en) * | 2014-06-09 | 2014-09-10 | 中国铁道科学研究院铁道建筑研究所 | Polymer cement mortar for slab ballastless track of high-speed railway |
-
2016
- 2016-04-26 CN CN201610260972.3A patent/CN105837141A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838129A (en) * | 2010-04-30 | 2010-09-22 | 常州市众华建材科技有限公司 | Premixed dry mortar |
| CN102173690A (en) * | 2011-01-05 | 2011-09-07 | 广东美涂士建材股份有限公司 | Acid-rain-resistant mortar for exterior wall base material processing |
| CN102126848A (en) * | 2011-02-10 | 2011-07-20 | 乌鲁木齐市建筑建材科学研究院有限责任公司 | Cement-based self-leveling dry powder mortar for high-cracking-resistance ground |
| KR20130057024A (en) * | 2011-11-23 | 2013-05-31 | 엔아이테크 주식회사 | The giopolymer binder using waste disc and the fireproofing mortar composition using thereof |
| CN104030644A (en) * | 2014-06-09 | 2014-09-10 | 中国铁道科学研究院铁道建筑研究所 | Polymer cement mortar for slab ballastless track of high-speed railway |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109369110A (en) * | 2018-12-06 | 2019-02-22 | 江西省建筑材料工业科学研究设计院 | A kind of reinforcement type cement base lithium slag grouting material |
| CN109665792A (en) * | 2019-02-28 | 2019-04-23 | 莒县铭通建材有限公司 | A kind of plastering mortar and preparation method thereof |
| CN111848029A (en) * | 2020-07-07 | 2020-10-30 | 深圳市汉工造技术有限公司 | Lithium slag modified ultra-high performance concrete product and preparation method thereof |
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Application publication date: 20160810 |
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