CN111908856A - Functional floor separation strip and construction method thereof - Google Patents
Functional floor separation strip and construction method thereof Download PDFInfo
- Publication number
- CN111908856A CN111908856A CN202010609323.6A CN202010609323A CN111908856A CN 111908856 A CN111908856 A CN 111908856A CN 202010609323 A CN202010609323 A CN 202010609323A CN 111908856 A CN111908856 A CN 111908856A
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- Prior art keywords
- parts
- strip
- agent
- cement
- functional floor
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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
- C04B28/04—Portland 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
-
- 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
- E04F15/14—Construction of joints, e.g. dividing strips
- E04F15/142—Dividing strips or boundary strips
-
- 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
- C04B2111/80—Optical properties, e.g. transparency or reflexibility
- C04B2111/82—Coloured materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/10—Mortars, concrete or artificial stone characterised by specific physical values for the viscosity
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Floor Finish (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides a functional floor separating strip and a construction method thereof, wherein the functional floor separating strip comprises the following material components: 400 parts of cement, 60-80 parts of inorganic mineral reinforcing material, 50-100 parts of fly ash microspheres, 550 parts of quartz sand, 3-6 parts of thickening agent, 1-2 parts of water reducing agent, 1-2 parts of defoaming agent, 4-8 parts of early strength admixture, 3-5 parts of fiber, 0-15 parts of rubber powder, 1-2 parts of retarder and 0-3 parts of pigment. The parting strip is based on dry-mixed mortar, the dry-mixed mortar is early and fast in setting, high in bonding strength and good in plasticity, efficient and fast in construction by matching with a specific construction method, the parting strip can be shoveled and reserved, and shoveled waste materials can be recycled as filler of common mortar or concrete after being collected and crushed.
Description
Technical Field
The invention relates to the field of materials for floor construction, in particular to a functional floor separating strip and a construction method thereof.
Background
The combination of the terrace technology and the materials enables the ground to present specific decorative effect and special functionality, for example, self-leveling, grindstone, antiskid, anti-static, anticorrosion, wear-resistant and other types of terrace systems, and provides more choices for requirements of the beauty and functionality of the terrace in production and life.
In the terrace work progress of large tracts of land, often can select the form of pouring in separate storehouses to go on, the leading condition of pouring in separate storehouses is exactly to separating the construction area, for example, carry out cement self-leveling construction, the parting strip that generally adopts the foam class divides the storehouse, this kind of parting strip must paste under the dry condition of basic unit, but in carrying out the self-leveling work progress, destroy the foam strip easily and make it drop, and then influence the surperficial effect at ordinary times of pouring, treat simultaneously after the self-leveling sclerosis, the foam strip of shoveling directly abandons and causes the waste. In addition, in the other situation, when the cement-based grindstone terrace is constructed, in the past, partition bars such as metal or plastic are prefabricated into the cement-based grindstone, then cement-based materials are poured, the cement-based materials are integrally ground after being hardened, or the foam partition bars are utilized to be poured in sequence after being divided into bins, and finally the whole grinding construction is carried out.
Therefore, the invention intends to design a functional floor dividing strip and a construction method thereof, the dividing strip is based on dry powder mortar, the dry powder mortar has the advantages of early strength and quick setting, high bonding strength and good plasticity, is constructed by matching with mechanical equipment, is efficient and quick, can be shoveled and retained, and the shoveled waste can be recycled as the filler of common mortar or concrete after being collected and crushed.
Disclosure of Invention
Aiming at the problems in the prior art, the technical scheme adopted by the invention for solving the problems in the prior art is as follows:
the utility model provides a functional terrace parting strip which characterized in that includes following material composition: 400 parts of cement, 60-80 parts of inorganic mineral reinforcing material, 50-100 parts of fly ash microspheres, 550 parts of quartz sand, 3-6 parts of thickening agent, 1-2 parts of water reducing agent, 1-2 parts of defoaming agent, 4-8 parts of early strength admixture, 3-5 parts of fiber, 0-15 parts of rubber powder, 1-2 parts of retarder and 0-3 parts of pigment.
The cement is P.O42.5 ordinary portland cement; the inorganic mineral reinforcing material is used for high-temperature firing of inorganic cement, and the fineness is more than 400m2The cement has the main function of enhancing the early strength development of the ordinary cement and has good anti-cracking and shrinkage reducing functions.
The volume weight of the fly ash micro-bead is 250-400kg/m3Mainly reduces the density of the dry powder mortar and improves the plasticity.
The quartz sand is used by mixing 20-40 meshes and 40-80 meshes according to the mass ratio of 2: 1.
The thickening agent is formed by compounding hydroxypropyl methyl cellulose ether, starch ether and bentonite according to the mass ratio of 4:1:1, so that the consistency and thixotropy of mortar are improved, and the phenomenon that slurry collapses and cannot be formed when partition strips are constructed is prevented.
The water reducing agent is a powdery polycarboxylic acid water reducing agent, and can improve the wettability of the slurry and the smoothness of the surface of the slurry after hardening; the early strength agent is a calcium cement concrete early strength agent, and further controls and improves the early strength development of the mortar on the basis of an inorganic mineral reinforcing material.
The defoaming agent is a mixture of liquid hydrocarbon, polyethylene glycol and amorphous silicon dioxide, and is used for reducing inferior bubbles in the material and improving the overall compactness and strength of the parting strip.
The fibers are 6mmPVA fibers and 3mmPP fibers which are compounded according to the mass ratio of 1:2, so that the cracking of the mortar is controlled, and the plasticity of the mortar is improved.
The retarder is formed by compounding white sugar and sodium gluconate according to the mass ratio of 1:1, and the operable time of the mortar is controlled, so that the mortar is not prematurely coagulated to influence the construction continuity of the mortar.
The rubber powder is ethylene-vinyl acetate copolymer redispersible latex powder; the pigment is inorganic mineral pigment to ensure the durability of the color separating strip.
The construction method of the functional floor dividing strip comprises the following steps:
step 1, polishing, cleaning, dust absorption and other treatment are carried out on base layer concrete;
step 2, determining the position of the division strip to be printed in the floor division construction area according to the division pouring sequence, and marking and positioning;
step 3, wetting the printed area with wet water or brushing a concrete interface agent on the printed area;
step 4, mixing mortar materials, and constructing the partition strips by using printing equipment, wherein the construction thickness and the width of the partition strips are determined according to the thickness of the surface layer materials;
and 5, after the mortar parting strips are hardened, carrying out surface layer warehouse separation construction.
The printing equipment in the step 4 is a Hua Chuang Zhi-Shi mobile HC1019 type 3D concrete printer or a Dutch CyBe track type 3D printer.
The invention has the following advantages:
(1) the process has the advantages that: the partition strip is a cast-in-place inorganic material, for a cement-based grindstone material, the partition strip and the grindstone material have high homogeneity, can be kept as a decorative line after hardening, and for other terrace materials, the partition strip is coated with a release agent after hardening, is removed after the terrace material is hardened (within 24 hours), and can be used as a filler of common cement mortar or concrete after the removal of the waste is recovered, so that the damage of the organic foam partition strip to the environment in the production and use processes can be effectively avoided;
(2) the performance advantage is as follows: the functional division bar adopts ordinary cement, inorganic mineral reinforcing materials and fly ash microbeads as composite cementing materials, so that the strength, plasticity and crack resistance of the division bar after hardening are ensured; the thickening agent, the fibers, the water reducing agent, the rubber powder and the fly ash microbeads jointly control the consistency of the division bar during construction, and adjust the plasticity of the mortar during construction, so that the surface of the division bar is smooth and flat without collapse or cracking after being hardened; the operable time of the construction of the partition strip is further controlled by the early strength agent and the coagulant, the construction time of the mortar material is ensured to be 20-30min, and the strength reaches more than 5MPa in 4 hours, so that the large-area construction of the warehouse-dividing area can be carried out. Based on the physical property of the separating strip, when the separating strip is used in a cement grinding stone terrace, the separating strip has better bonding strength with a cement base terrace material, and the contraction is small, so that the risk that the metal or plastic separating strip is easy to separate from the cement base material in the using process due to the fact that the material property is inconsistent with the cement base material can be effectively avoided.
Detailed Description
The functional floor dividing strip and the preparation method thereof according to the present invention will be further described with reference to the following embodiments.
A functional terrace parting strip comprises the following material components: 400 parts of cement, 60-80 parts of inorganic mineral reinforcing material, 50-100 parts of fly ash microspheres, 550 parts of quartz sand, 3-6 parts of thickening agent, 1-2 parts of water reducing agent, 1-2 parts of defoaming agent, 4-8 parts of early strength admixture, 3-5 parts of fiber, 0-15 parts of rubber powder, 1-2 parts of retarder and 0-3 parts of pigment.
Wherein the cement is Huaxin P.O42.5 ordinary portland cement; the inorganic mineral reinforcing material is an inorganic strengthening and reducing agent fired by polar bear at high temperature, and the specific surface area is 420m2The calcium sulfate/kg contains calcium sulfate calcined at high temperature and active calcium oxide, and promotes the development of ordinary portland cement; fly ash micro-bead with volume weight of 300kg/m3；
The quartz sand is prepared by compounding commercially available 20-40-mesh quartz sand and 40-80-mesh quartz sand according to the mass ratio of 2: 1; the thickening agent is prepared by compounding commercially available cement-based materials with hydroxypropyl methyl cellulose ether, starch ether and bentonite according to the mass ratio of 4:1: 1;
the water reducing agent is a commercially available polycarboxylic acid water reducing agent of Longhu P20 powder; the defoaming agent is a German Mingling P803 defoaming agent; the early strength agent is commercially available powder calcium formate; the fiber is prepared by compounding commercially available 6mmPVA fiber and 3mmPP fiber according to the mass ratio of 1: 2; the retarder is formed by compounding commercially available white sugar and sodium gluconate according to the mass ratio of 1: 1; the rubber powder is watt 4115 redispersible latex powder; the pigment is iron oxide red.
A construction method of the functional floor separating strip comprises the following steps: (1) carrying out polishing, cleaning, dust collection and other treatments on the base concrete; (2) in a terrace sub-bin construction area, determining the position of a division bar to be printed according to the sequence of sub-bin pouring, and marking and positioning; (3) wetting the printing area with wet water or brushing a concrete interface agent on the printing area; (4) mixing mortar materials, and constructing the division bars by using the existing printing equipment, wherein the construction thickness and the width of the division bars are determined according to the thickness of the surface layer materials; (5) and after the mortar parting strips are hardened, carrying out surface layer warehouse separation construction.
Example 1:
aiming at cushion cement-based self-leveling, the functional floor dividing strip is composed of 300 parts of cement, 60 parts of inorganic mineral reinforcing material, 100 parts of fly ash microbeads, 527 parts of quartz sand, 3 parts of thickening agent, 1 part of water reducing agent, 1 part of defoaming agent, 4 parts of early strength agent, 3 parts of fiber and 1 part of retarder.
Example 2:
aiming at surface cement-based self-leveling, the functional floor dividing strip is composed of 350 parts of cement, 70 parts of inorganic mineral reinforcing material, 75 parts of fly ash microbeads, 481 parts of quartz sand, 4 parts of thickening agent, 1.5 parts of water reducing agent, 1.5 parts of defoaming agent, 6 parts of early strength agent, 4 parts of fiber, 5 parts of rubber powder and 2 parts of retarder.
Example 3:
a functional floor dividing strip for a cement-based grindstone floor is composed of 400 parts of cement, 80 parts of an inorganic mineral reinforcing material, 50 parts of fly ash microbeads, 427 parts of quartz sand, 6 parts of a thickening agent, 2 parts of a water reducing agent, 2 parts of a defoaming agent, 8 parts of an early strength agent, 5 parts of fibers, 15 parts of rubber powder, 2 parts of a retarder and 3 parts of pigment.
The dry powder materials of the three examples are added with water according to the water-material ratio of 14% and stirred for 5min until the slurry is uniform, and the performance test is carried out on the slurry, wherein the results are shown in the following table:
table 1 functional floor dividing strip performance test
| Item | Example 1 | Example 2 | Example 3 |
| Operating time, min | 26 | 28 | 22 |
| Compressive strength of 4h, MPa | 7.4 | 8.8 | 12.7 |
| 24h bond strength, MPa | 0.3 | 0.5 | 0.8 |
| 28d compressive strength, MPa | 24.6 | 28.7 | 34.6 |
| 28d flexural strength, MPa | 5.6 | 6.6 | 7.6 |
| 28d bond strength, MPa | 1.2 | 1.4 | 1.6 |
| 28d rate of change of dimension% | 0.01 | 0.00 | 0.02 |
According to the detection results, the division bars of the three embodiments have reliable operation time, and construction can be carried out on the corresponding sub-warehouse surfaces after 4 hours; for example 3, because the construction of the cast-in-place cement-based grindstone in a large area, the parting strip can be retained after the corresponding parting surface is hardened, so that the 28d compressive strength of the parting strip is more than 30MPa, the breaking strength of the parting strip is more than 7MPa, the bonding strength with the base layer is more than 1.5MPa, and the dimensional change rate is 0.02 percent, and the parting strip can be matched with the physical properties of the cement grindstone as a colorful decorative parting strip; the division bars of the embodiments 1 and 2 can be removed within 24 hours after the construction of corresponding ground materials is finished, so that the mechanical property of the division bars is lower than that of the embodiment 3, and the division bars are beneficial to removal and treatment.
The protective scope of the present invention is not limited to the above-described embodiments, and it is apparent that various modifications and variations can be made to the present invention by those skilled in the art without departing from the scope and spirit of the present invention. It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
Claims (10)
1. The utility model provides a functional terrace parting strip which characterized in that includes following material composition:
400 parts of cement, 60-80 parts of inorganic mineral reinforcing material, 50-100 parts of fly ash microspheres, 550 parts of quartz sand, 3-6 parts of thickening agent, 1-2 parts of water reducing agent, 1-2 parts of defoaming agent, 4-8 parts of early strength admixture, 3-5 parts of fiber, 0-15 parts of rubber powder, 1-2 parts of retarder and 0-3 parts of pigment.
2. The functional floor dividing strip of claim 1, wherein:
the cement is P.O42.5 ordinary portland cement; the inorganic mineral reinforcing material is used for high-temperature firing of inorganic cement, and the fineness is more than 400m2/kg。
3. The functional floor dividing strip of claim 1, wherein:
the volume weight of the fly ash micro-bead is 250-400kg/m3。
4. The functional floor dividing strip of claim 1, wherein:
the quartz sand is used by mixing 20-40 meshes and 40-80 meshes according to the mass ratio of 2: 1.
5. The functional floor dividing strip of claim 1, wherein:
the thickening agent is prepared by compounding hydroxypropyl methyl cellulose ether, starch ether and bentonite according to the mass ratio of 4:1: 1.
6. The functional floor dividing strip of claim 1, wherein:
the water reducing agent is a powdery polycarboxylic acid water reducing agent; the early strength agent is a calcium cement concrete early strength agent, and the defoaming agent is a mixture of liquid hydrocarbon, polyethylene glycol and amorphous silicon dioxide.
7. The functional floor dividing strip of claim 1, wherein:
the fiber is prepared by compounding 6mmPVA fiber and 3mmPP fiber according to the mass ratio of 1: 2.
8. The functional floor dividing strip of claim 1, wherein:
the retarder is formed by compounding white sugar and sodium gluconate according to the mass ratio of 1: 1.
9. The functional floor dividing strip of claim 1, wherein:
the rubber powder is ethylene-vinyl acetate copolymer redispersible latex powder; the pigment is inorganic mineral pigment to ensure the durability of the color separating strip.
10. The construction method of a functional floor dividing strip as claimed in any one of claims 1 to 9, comprising the steps of:
step 1, polishing, cleaning, dust absorption and other treatment are carried out on base layer concrete;
step 2, determining the position of the division strip to be printed in the floor division construction area according to the division pouring sequence, and marking and positioning;
step 3, wetting the printed area with wet water or brushing a concrete interface agent on the printed area;
step 4, mixing mortar materials, and constructing the partition strips by using printing equipment, wherein the construction thickness and the width of the partition strips are determined according to the thickness of the surface layer materials;
and 5, after the mortar parting strips are hardened, carrying out surface layer warehouse separation construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010609323.6A CN111908856A (en) | 2020-06-29 | 2020-06-29 | Functional floor separation strip and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010609323.6A CN111908856A (en) | 2020-06-29 | 2020-06-29 | Functional floor separation strip and construction method thereof |
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| CN111908856A true CN111908856A (en) | 2020-11-10 |
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| CN202010609323.6A Pending CN111908856A (en) | 2020-06-29 | 2020-06-29 | Functional floor separation strip and construction method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113548848A (en) * | 2021-02-03 | 2021-10-26 | 中铁二十三局集团轨道交通工程有限公司 | Adjustable 3D printing color cement-based mixed material |
| CN115259742A (en) * | 2022-07-07 | 2022-11-01 | 山西佳维新材料股份有限公司 | Retarder for mortar and preparation, use method and application thereof |
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| CN106088530A (en) * | 2016-06-29 | 2016-11-09 | 中冶建工集团有限公司 | Large area method for constructing terrace |
| CN106116326A (en) * | 2016-06-17 | 2016-11-16 | 南京徽腾环保科技有限公司 | A kind of Self-leveling dry powder and mortar and preparation method, utilize terrace and construction method thereof prepared by this dry powder and mortar |
| CN206408897U (en) * | 2016-12-12 | 2017-08-15 | 南京利国建筑装饰工程有限公司 | Crack resistence terrace |
| CN108930405A (en) * | 2017-05-27 | 2018-12-04 | 中国二十冶集团有限公司 | Insulating layer of external wall concrete structure bracket lattice method |
-
2020
- 2020-06-29 CN CN202010609323.6A patent/CN111908856A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106116326A (en) * | 2016-06-17 | 2016-11-16 | 南京徽腾环保科技有限公司 | A kind of Self-leveling dry powder and mortar and preparation method, utilize terrace and construction method thereof prepared by this dry powder and mortar |
| CN106088530A (en) * | 2016-06-29 | 2016-11-09 | 中冶建工集团有限公司 | Large area method for constructing terrace |
| CN206408897U (en) * | 2016-12-12 | 2017-08-15 | 南京利国建筑装饰工程有限公司 | Crack resistence terrace |
| CN108930405A (en) * | 2017-05-27 | 2018-12-04 | 中国二十冶集团有限公司 | Insulating layer of external wall concrete structure bracket lattice method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113548848A (en) * | 2021-02-03 | 2021-10-26 | 中铁二十三局集团轨道交通工程有限公司 | Adjustable 3D printing color cement-based mixed material |
| CN115259742A (en) * | 2022-07-07 | 2022-11-01 | 山西佳维新材料股份有限公司 | Retarder for mortar and preparation, use method and application thereof |
| CN115259742B (en) * | 2022-07-07 | 2023-08-08 | 山西佳维新材料股份有限公司 | Retarder for mortar, and preparation method, application method and application thereof |
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Application publication date: 20201110 |