CN108059429B - Self-leveling mortar for repairing damaged ground - Google Patents
Self-leveling mortar for repairing damaged ground Download PDFInfo
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- CN108059429B CN108059429B CN201711218196.1A CN201711218196A CN108059429B CN 108059429 B CN108059429 B CN 108059429B CN 201711218196 A CN201711218196 A CN 201711218196A CN 108059429 B CN108059429 B CN 108059429B
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- self
- steel slag
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- leveling mortar
- powder
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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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides self-leveling mortar for repairing damaged ground, which comprises the following raw materials in parts by weight, 22-25 parts of ordinary portland cement, 6-8 parts of aluminate cement, 2.50-2.55 parts of anhydrite, 5-6 parts of heavy calcium powder, 12-15 parts of steel slag powder, 18-20 parts of steel slag sand, 25-28 parts of quartz sand, 0.5-1.5 parts of latex powder, 0.05-0.15 part of a water reducing agent, 0.08-0.16 part of citric acid, 0.05-0.1 part of lithium carbonate, 0.05-0.1 part of cellulose ether and 0.05-0.15 part of an antifoaming agent. The invention utilizes the characteristics of the steel slag to apply the steel slag to the preparation of the self-leveling mortar so as to obtain building material products with high economic added value, expand new ways of utilizing the solid waste of the steel slag and improve economic and social benefits.
Description
Technical Field
The invention relates to mortar for buildings, in particular to self-leveling mortar and a preparation method thereof.
Background
The cement-based self-leveling mortar is a cement base made of Portland cement and an active master batch excitant. It is a dry-mixed powdery material consisting of a plurality of active ingredients and can be used after being mixed with water on site. And spreading the base surface by a scraper to obtain a high-flatness base surface. The hardening speed is high, the walking can be carried out in 24 hours, or subsequent engineering (such as paving wood floors, diamond plates and the like) is carried out, the construction is fast and convenient, and the method is incomparable to the traditional manual leveling.
The self-leveling mortar is safe to use, pollution-free, attractive, rapid in construction and practical, and is the characteristic of self-leveling cement. The method promotes civilized construction procedures, creates a high-quality, comfortable and flat space, and increases gorgeous colors for life by paving and pasting diversified standard decorative veneers. The self-leveling mortar has wide application, can be used for industrial factory buildings, workshops, warehouses, commercial stores, exhibition halls, gymnasiums, hospitals, various open spaces, offices and the like, and also can be used for households, villas, warm small spaces and the like.
Domestic patent application CN106220115A discloses gypsum-based self-leveling mortar prepared from iron tailing fine sand, mainly introduces a technology for preparing self-leveling mortar by using fine iron tailing to replace fine sand below 0.5 as aggregate and gypsum as a cementing material, and belongs to the field of waste products with low cost. But its activity and abrasion resistance are poor.
Domestic patent application CN106187002A discloses 'self-leveling mortar of mine waste tailings and preparation method thereof', which mainly introduces a technology for preparing self-leveling mortar by utilizing various mine tailings, wherein the mine tailings mainly comprise gold tailings, nickel tailings, iron tailings, copper tailings and the like. It has high cost and poor activity.
Disclosure of Invention
In view of the above disadvantages of the prior art, the present invention provides a self-leveling mortar, which is used to solve the problems of high cost and poor activity of the self-leveling mortar in the prior art.
To achieve the above objects and other related objects, the present invention provides a solution including the following.
The application provides a self-leveling mortar, the raw material components of the self-leveling mortar include the following types and parts by weight:
the ordinary portland cement is a hydraulic cementing material prepared by grinding portland cement clinker, 5-20% of mixed materials and a proper amount of gypsum. Preferably, the strength grade of the portland cement is 42.5R.
Preferably, the aluminate cement is of type CAC-50.
The steel slag is waste slag generated in the steel-making process, has the characteristics of potential activity, wear resistance and the like after being treated by the iron selection process, and can be used as a cementing material admixture and aggregate of building materials. The steel slag in the application is the steel slag produced by Chinese metallurgy steel.
As will be further elaborated from the above, the steel slag powder in the present application is obtained by processing steel slag through a grinding process.
The steel slag sand is obtained by screening steel slag.
Preferably, the content of free calcium oxide in the steel slag powder is less than or equal to 3 wt%. Preferably, the specific surface area of the steel slag powder is more than or equal to 400m2/kg。
Preferably, the grain size of the steel slag sand is 0.25-0.50 mm. Preferably, the steel slag sand contains 0 free calcium oxide.
Preferably, the quartz sand is 70-140 meshes.
Preferably, the latex powder is EVA latex powder. Preferably, the EVA latex powder is Vinnapas 5010N.
Preferably, the water reducing agent is a polycarboxylate water reducing agent (abbreviated as PCE). Preferably, the type of the water reducing agent is DS-600P.
Preferably, the cellulose ether is of the type WALOCEL MT 400 PFV.
Preferably, the defoamer is of type Agitan P803.
The invention also discloses a use method of the self-leveling mortar, which comprises the steps of mixing the steel slag powder, the steel slag sand, the ordinary portland cement, the aluminate cement, the coarse whiting powder, the anhydrite and the quartz sand, then sequentially adding the latex powder, the water reducing agent, the citric acid, the lithium carbonate, the cellulose ether, the defoaming agent and the water, and uniformly stirring.
Preferably, the water is 20 to 25 parts by weight.
The self-leveling mortar is used in the field of building materials with dual functions of repairing damaged ground and bearing and decorating.
The application of the self-leveling mortar is to uniformly mix the self-leveling mortar with water and then pour and collect light.
Preferably, the casting thickness is 3 mm-10 mm.
As described above, the self-leveling mortar and the preparation method thereof of the present invention have the following beneficial effects:
the self-leveling mortar commonly used in the application bears dynamic load friction on various large-scale grounds, and not only needs to have high strength and high fluidity, but also needs to have the characteristic of higher wear resistance. The invention utilizes the characteristics of the steel slag, applies the steel slag to the preparation of the self-leveling mortar so as to obtain the building material product with high economic added value, expands the new utilization way of the steel slag solid waste, improves the economic benefit and the social benefit, saves the natural resource, reduces the cement consumption, accords with the national recycling policy, and is expected to have obvious social economic and environmental benefits.
Detailed Description
Before the present embodiments are further described, it is to be understood that the scope of the invention is not limited to the particular embodiments described below; it is also to be understood that the terminology used in the examples is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the present invention. Test methods in which specific conditions are not specified in the following examples are generally carried out under conventional conditions or under conditions recommended by the respective manufacturers.
When numerical ranges are given in the examples, it is understood that both endpoints of each of the numerical ranges and any value therebetween can be selected unless the invention otherwise indicated. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In addition to the specific methods, devices, and materials used in the examples, any methods, devices, and materials similar or equivalent to those described in the examples may be used in the practice of the invention in addition to the specific methods, devices, and materials used in the examples, in keeping with the knowledge of one skilled in the art and with the description of the invention.
In the embodiment of the application, the specific specifications of the raw material components are as follows:
the ordinary portland cement is portland cement produced by conch cement limited having a strength grade of 42.5R.
The latex powder is EVA latex powder, and is Vinnapas5010N provided by Wacker chemical Co.
The water reducing agent is a polycarboxylate water reducing agent which is provided by Shanghai Sanrui high polymer materials GmbH and has the model of DS-600P.
The cellulose ether is provided by the Dow chemical (China) Co., Ltd and is of the WALOCEL MT 400PFV type.
The defoaming agent is produced by German Mingling chemical group, and the model is Agitan P803.
Example 1
The embodiment provides a self-leveling mortar, which is prepared from the following raw material components in parts by weight:
example 2
The embodiment provides a self-leveling mortar, which is prepared from the following raw material components in parts by weight:
example 3
The embodiment provides a self-leveling mortar, which is prepared from the following raw material components in parts by weight:
the use method of the self-leveling mortar in the embodiments 1 to 3 is that the steel slag powder, the steel slag sand, the ordinary portland cement, the aluminate cement, the coarse whiting powder, the anhydrite and the quartz sand are mixed, then the latex powder, the water reducing agent, the citric acid, the lithium carbonate, the cellulose ether, the defoaming agent and the water are sequentially added, and the mixture is uniformly stirred. 25 parts of water are used.
The stirring was performed at intervals.
In the embodiment of the application, the stirrer is adopted for stirring, the stirring is firstly carried out at a low speed of 800r/min for 1 minute, then is statically stopped for 30 seconds, then is carried out at a high speed of 3000r/min for 1 minute, is statically stopped for 3 minutes, and finally is carried out at a high speed for 20 seconds.
The performance of the self-leveling mortar of examples 1 to 3 was tested and analyzed as shown in tables 1 and 2 below.
TABLE 1
TABLE 2
Separation and layering bleeding and other working performances: visual inspection and manual application methods.
Fluidity and fluidity loss: the test is carried out according to the fluidity and 20min fluidity test method specified in the national industry standard JC/T985 'Cement-based self-leveling mortar for ground'.
Compressive strength and flexural strength: the flexural strength of 1d and 28d is tested according to the test method of the compressive strength and the flexural strength specified in the national industry standard JC/T985 'Cement-based self-leveling mortar for ground'.
Wear resistance: the test is carried out according to the wear resistance test method specified in national industry standard JC/T985 'Cement-based self-leveling mortar for ground'.
Drying shrinkage performance: the test is carried out according to a size change rate test method specified in national industry standard JC/T985 'ground cement-based self-leveling mortar'.
Tensile bond strength: the test is carried out according to a tensile bond strength test method specified in national industry standard JC/T985 'Cement-based self-leveling mortar for ground'.
The invention provides waste-utilizing cement self-leveling mortar and a preparation method thereof, and innovatively provides a novel product of the novel steel slag wear-resistant self-leveling mortar, wherein steel slag micro powder is used as a cementing material to replace part of cement, and steel slag fine aggregate is used as an aggregate to replace quartz sand. The cement-based self-leveling mortar which meets the industrial standard of JC/T985-2005 ground-based self-leveling mortar has the characteristics of good leveling property, high construction speed, short construction period, high early strength, low shrinkage and the like. The method can be widely used for ground construction of industrial and civil buildings, can effectively replace the traditional ground method, and is beneficial to reducing the engineering cost, shortening the engineering period, improving the engineering quality and facilitating the construction management.
While the invention has been described with respect to a preferred embodiment, it will be understood by those skilled in the art that the foregoing and other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention. Those skilled in the art can make various changes, modifications and equivalent arrangements, which are equivalent to the embodiments of the present invention, without departing from the spirit and scope of the present invention, and which may be made by utilizing the techniques disclosed above; meanwhile, any changes, modifications and variations of the above-described embodiments, which are equivalent to those of the technical spirit of the present invention, are within the scope of the technical solution of the present invention.
Claims (6)
1. The self-leveling mortar for repairing damaged ground is characterized by comprising the following raw material components in parts by weight:
the grain size of the steel slag sand is 0.25-0.50 mm, and the specific surface area of the steel slag powder is more than or equal to 400m2The emulsion powder is EVA emulsion powder which is Vinnapas 5010N; the cellulose ether is WALOCEL MT 400PFV, the water reducing agent is DS-600P, the defoaming agent is Agitan P803, and the quartz sand is 70-140 meshes.
2. The self-leveling mortar of claim 1, wherein: the strength grade of the ordinary portland cement is 42.5R.
3. The self-leveling mortar of claim 1, wherein: the aluminate cement is CAC-50.
4. The self-leveling mortar of claim 1, wherein: the content of free calcium oxide in the steel slag powder is less than or equal to 3 wt%.
5. The use method of the self-leveling mortar of any one of claims 1 to 4, wherein the steel slag powder, the steel slag sand, the ordinary portland cement, the aluminate cement, the coarse whiting powder, the anhydrite and the quartz sand are mixed, then the latex powder, the water reducing agent, the citric acid, the lithium carbonate, the cellulose ether, the defoaming agent and the water are sequentially added, and the mixture is uniformly stirred.
6. The method of use of claim 5, wherein: the water accounts for 20-25 parts by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711218196.1A CN108059429B (en) | 2017-11-28 | 2017-11-28 | Self-leveling mortar for repairing damaged ground |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711218196.1A CN108059429B (en) | 2017-11-28 | 2017-11-28 | Self-leveling mortar for repairing damaged ground |
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| CN108059429A CN108059429A (en) | 2018-05-22 |
| CN108059429B true CN108059429B (en) | 2020-11-13 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114195471A (en) * | 2021-12-13 | 2022-03-18 | 深圳市华威环保建材有限公司 | Regenerated self-leveling mortar and preparation method and application thereof |
| CN114656235A (en) * | 2022-04-27 | 2022-06-24 | 上海杰深建材有限公司 | Self-leveling material utilizing steel-making solid waste |
| CN115745535A (en) * | 2022-12-06 | 2023-03-07 | 上海市建筑科学研究院有限公司 | High-toughness super-early-strength rapid road repairing material with large-volume steel slag solid waste |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1800103A1 (en) * | 1968-10-01 | 1970-04-16 | Lechler Bautenschutzchemie Kg | Pre-stressed concrete injection mortar |
| CN101648797A (en) * | 2009-06-29 | 2010-02-17 | 上海东升新材料有限公司 | Self-leveling terrace powder mortar composite |
| CN102173711A (en) * | 2011-02-28 | 2011-09-07 | 武汉钢铁(集团)公司 | High-volume slag self-leveling mortar |
| CN102424563A (en) * | 2011-09-13 | 2012-04-25 | 同济大学 | Desulfurized gypsum based antistatic self-leveling mortar and its preparation method |
| CN102850030A (en) * | 2012-08-17 | 2013-01-02 | 苏州市德莱尔建材科技有限公司 | Cement-based self-leveling dry-mixed mortar |
| CN103342530A (en) * | 2013-06-25 | 2013-10-09 | 江苏蓝圈新材料有限公司 | Cement-based self-leveling mortar |
| WO2014092667A1 (en) * | 2012-12-14 | 2014-06-19 | Özsüt Mustafa | Pozzolan-quicklime binder |
| CN104829202A (en) * | 2015-01-05 | 2015-08-12 | 潍坊德霖建材科技有限公司 | Preparation method of electric-conductive self-leveling mortar |
| CN105777034A (en) * | 2016-02-25 | 2016-07-20 | 张学健 | Abrasion-resistant cement-based self-leveling mortar |
| CN106673580A (en) * | 2016-12-30 | 2017-05-17 | 北京宝辰联合科技股份有限公司 | Cement-based self-leveling mortar |
| CN106699072A (en) * | 2015-11-12 | 2017-05-24 | 上海东大化学有限公司 | Cement-based self-leveling mortar and preparation method thereof |
| CN106854067A (en) * | 2017-01-16 | 2017-06-16 | 河南国隆实业有限公司 | Self-leveling dry-mixed mortar and preparation method thereof |
-
2017
- 2017-11-28 CN CN201711218196.1A patent/CN108059429B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1800103A1 (en) * | 1968-10-01 | 1970-04-16 | Lechler Bautenschutzchemie Kg | Pre-stressed concrete injection mortar |
| CN101648797A (en) * | 2009-06-29 | 2010-02-17 | 上海东升新材料有限公司 | Self-leveling terrace powder mortar composite |
| CN102173711A (en) * | 2011-02-28 | 2011-09-07 | 武汉钢铁(集团)公司 | High-volume slag self-leveling mortar |
| CN102424563A (en) * | 2011-09-13 | 2012-04-25 | 同济大学 | Desulfurized gypsum based antistatic self-leveling mortar and its preparation method |
| CN102850030A (en) * | 2012-08-17 | 2013-01-02 | 苏州市德莱尔建材科技有限公司 | Cement-based self-leveling dry-mixed mortar |
| WO2014092667A1 (en) * | 2012-12-14 | 2014-06-19 | Özsüt Mustafa | Pozzolan-quicklime binder |
| CN103342530A (en) * | 2013-06-25 | 2013-10-09 | 江苏蓝圈新材料有限公司 | Cement-based self-leveling mortar |
| CN104829202A (en) * | 2015-01-05 | 2015-08-12 | 潍坊德霖建材科技有限公司 | Preparation method of electric-conductive self-leveling mortar |
| CN106699072A (en) * | 2015-11-12 | 2017-05-24 | 上海东大化学有限公司 | Cement-based self-leveling mortar and preparation method thereof |
| CN105777034A (en) * | 2016-02-25 | 2016-07-20 | 张学健 | Abrasion-resistant cement-based self-leveling mortar |
| CN106673580A (en) * | 2016-12-30 | 2017-05-17 | 北京宝辰联合科技股份有限公司 | Cement-based self-leveling mortar |
| CN106854067A (en) * | 2017-01-16 | 2017-06-16 | 河南国隆实业有限公司 | Self-leveling dry-mixed mortar and preparation method thereof |
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