CN113636801A - Cast-in-place bare concrete blind strip and manufacturing method thereof - Google Patents
Cast-in-place bare concrete blind strip and manufacturing method thereof Download PDFInfo
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- CN113636801A CN113636801A CN202110728798.1A CN202110728798A CN113636801A CN 113636801 A CN113636801 A CN 113636801A CN 202110728798 A CN202110728798 A CN 202110728798A CN 113636801 A CN113636801 A CN 113636801A
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- Prior art keywords
- blind
- parts
- strip
- blind strip
- cast
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Classifications
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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
- C04B28/02—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
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C15/00—Pavings specially adapted for footpaths, sidewalks or cycle tracks
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/10—Coherent pavings made in situ made of road-metal and binders of road-metal and cement or like binders
- E01C7/14—Concrete paving
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
Abstract
The cast-in-place bare concrete strip comprises the following steps: the method comprises the following steps of base layer processing, blind strip mold laying, blind strip forming and blind strip surface processing. Due to the adoption of a new base layer treatment method, the bonding force between the blind strip and the base layer is effectively improved, and the problem that the blind strip integrally falls off due to the existing construction process is remarkably solved. The manufacturing method needs shorter construction time, and meets the requirements of rapid construction and rapid use of the blind strip. Meanwhile, the surface of the formed blind strip is treated by a special treatment method in the manufacturing method, so that the durability of the blind strip is obviously improved, and the service life of the whole blind road is further prolonged.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to a cast-in-place bare concrete blind strip and a manufacturing method thereof.
Background
The blind sidewalk is used as an important barrier-free facility in cities, and provides guidance and convenience for the blind people to go out. Whether the blind road construction of a city is sound can reflect the civilized development degree of the city. At present, the whole blind road brick is made of mature materials and developed by a method, and the requirements of laying most blind roads can be met. However, in the process of laying the urban blind sidewalk, the condition that part of road sections are not suitable for laying blind sidewalk bricks is sometimes encountered, and meanwhile, the blind sidewalk is difficult to completely avoid various well covers, so blind strips need to be laid on the road sections and the well covers to ensure the continuity of the blind sidewalk.
At present, a lot of blind strip laying materials are applied to be metal materials, but the blind strips laid by the metal materials are usually insufficient in adhesive force with a base layer, and fall off easily after being used for a period of time, so that the blind way is damaged. Therefore, a novel blind strip and a manufacturing method thereof need to be researched to meet the requirements of the overall construction quality and durability of the blind road.
Disclosure of Invention
The application provides a cast-in-place bare concrete blind strip and a manufacturing method thereof, which can solve the problem of laying the blind strip.
According to a first aspect, an embodiment provides a cast-in-place bare concrete strip, which is characterized by comprising a ready-mixed raw material bag and water.
In some embodiments, the cast-in-place bare concrete strip is a yellow rust stone-like cast-in-place bare concrete strip, and comprises 48 parts by weight of water and a premixed raw material bag, wherein the premixed raw material bag comprises the following components:
100 parts of white cement, 20 parts of mineral powder, 57 parts of quick-hardening fine grinding cement, 0.2 part of pigment yellow powder, 0.009 part of pigment red powder, 9 parts of silica fume, 2 parts of water reducing agent, 71 parts of 20-40 mesh river sand, 42 parts of 8-10 mesh river sand, 97 parts of 10-20 mesh river sand, 0.2 part of polypropylene fiber, 0.03 part of retarder and 0.08 part of water-retaining agent.
In some embodiments, for the yellow rust stone-like cast-in-place clear water concrete blind strip, the white cement is 52.5-grade white cement, and the mineral powder is 800-mesh mineral powder.
In some embodiments, the cast-in-place bare concrete blind strip is a sesame ash cast-in-place bare concrete blind strip, and the cast-in-place bare concrete blind strip comprises 35 parts by weight of water and a premixed raw material bag, wherein the premixed raw material bag comprises the following components:
100 parts of Portland cement, 18 parts of sulphoaluminate cement, 10 parts of rapid hardening and fine grinding cement, 19 parts of silica fume, 2 parts of water reducing agent, 0.3 part of polypropylene fiber, 112 parts of 40-mesh black sand, 0.01 part of retarder, 0.03 part of pigment black powder and 0.04 part of water-retaining agent.
In some embodiments, for the sesame ash cast-in-place bare concrete blind strip, the portland cement is 525# portland cement, and the sulphoaluminate cement is 425# sulphoaluminate cement.
According to the embodiment, the component proportion of various aggregates and additives is adjusted and perfected, the finished product can meet the requirements of blind strips on functionality and attractiveness, has the characteristics of high strength and good pressure resistance, is harmonious and consistent with nearby blind-way bricks in appearance, and is more attractive compared with metal blind strips. In the construction process, the material can be shaped quickly, and the requirement of quickly finishing construction in a high-temperature exposure environment is met.
According to a second aspect, an embodiment provides a method for manufacturing the cast-in-place bare concrete blind strip, which is characterized by comprising the following steps:
base layer treatment: cleaning a base pavement, coating an interface agent on the positioned blind strip laying position, uniformly punching 4 small holes with the hole diameter of 1 cm and the hole depth of 1.5 cm in the middle of the coating position after the surface is dried for about 1-2 hours, and cleaning dust generated by punching;
laying a blind strip mold: selecting a plastic plate, engraving a mould according to a blind strip shape, laying a template according to positioning, and sticking a double faced adhesive tape on the back of the template to prevent slurry leakage;
forming blind strips: adding water into the premixed raw material bag according to the designed weight part on site, uniformly stirring, pouring according to the template, scraping the surface of the template, covering with a film, maintaining, preliminarily shaping, and then demolding;
surface treatment of blind strips: and (3) trimming the periphery of the blind strip after demolding, washing residual slurry around the blind strip by using clear water, performing surface grinding treatment on the surface of the blind strip, cleaning by using clear water, laminating and maintaining, and brushing a surface protective agent after the surface is dried.
In some embodiments, during the substrate processing step, the perforations form moisture-exchanging channels between the blind strips and the substrate.
In some embodiments, in the blind bar forming step, the stirring time after the water is added must not be less than 2 minutes.
In some embodiments, in the step of processing the surface of the blind strip, after the surface is ground, the surface is washed with clean water for multiple times to ensure clean washing.
According to the embodiment, the manufacturing method of the cast-in-place bare concrete blind strip adopts a new base layer processing method, so that the bonding force between the blind strip and the base layer is effectively improved, and the problem of integral falling of the blind strip caused by the existing construction process is remarkably solved. The manufacturing method needs shorter construction time, and meets the requirements of rapid construction and rapid use of the blind strip. Meanwhile, the surface of the formed blind strip is treated by a special treatment method in the manufacturing method, so that the durability of the blind strip is obviously improved, and the service life of the whole blind road is further prolonged.
Detailed Description
In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, operations related to the present application have not been shown or described in detail in order not to obscure the core portion of the present application with unnecessary detail for those skilled in the art, and they will be fully understood from the description in the specification and the general knowledge in the art.
Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the steps or actions in the method descriptions may be transposed or transposed in order in a manner apparent to one skilled in the art.
Example 1:
the invention provides a yellow rust stone-imitated cast-in-place clear water concrete blind strip which comprises the following raw materials in parts by weight:
100 parts of white cement, 20 parts of mineral powder, 57 parts of quick-hardening fine grinding cement, 0.2 part of pigment yellow powder, 0.009 part of pigment red powder, 9 parts of silica fume, 2 parts of water reducing agent, 71 parts of 20-40 mesh river sand, 42 parts of 8-10 mesh river sand, 97 parts of 10-20 mesh river sand, 0.2 part of polypropylene fiber, 0.03 part of retarder, 0.08 part of water-retaining agent and 48 parts of water.
Wherein the white cement is 52.5-grade white cement, and the mineral powder is 800-mesh mineral powder.
The preparation method of each component of the invention comprises the following steps: all the components except water are premixed and prepared in a factory according to the proportion, the premixed raw material is prepared into a premixed raw material bag, the premixed raw material bag is sealed and packaged and conveyed to a construction site, and water is added according to the proportion of the components on the site to be uniformly mixed.
A manufacturing method of the yellow rust stone imitated cast-in-place clear concrete blind strip comprises the following steps:
base layer treatment: cleaning a base pavement, coating the surface of the positioned blind strip laying position with an interfacial agent, uniformly punching 4 small holes with the hole diameter of 1 cm and the hole depth of 1.5 cm in the middle of the coating position after the surface is dried for about 1-2 hours, and cleaning dust generated by punching.
Laying a blind strip mold: selecting a plastic plate, engraving a mould according to a blind strip shape, laying a template according to the positioning, and sticking a double faced adhesive tape on the back of the template to prevent slurry leakage.
Forming blind strips: adding water into the premixed raw material bag according to the designed weight part on site, uniformly mixing, pouring according to the template, scraping the surface of the template, laminating, maintaining, preliminarily shaping and then demolding.
Surface treatment of blind strips: and (3) trimming the periphery of the blind strip after demolding, washing residual slurry around the blind strip by using clear water, performing surface grinding treatment on the surface of the blind strip, cleaning the blind strip for multiple times by using clear water, laminating and maintaining, and brushing a surface protective agent after the surface is dried.
In the base layer processing step, the blind strip is firmly bonded with the base layer through punching. Under the condition of high-temperature exposure in summer, a channel for moisture exchange is formed between the blind strip and the base layer by punching, so that the strength reduction and falling off of the blind strip caused by excessive water loss can be avoided. Simultaneously under expend with heat and contract with cold's environment, the difference between blind strip and basic unit can reduce through punching, and then improves the durability that blind strip later stage was used.
In the blind strip forming step, the weight of water added on site must be accurately weighed, the weight proportion must be consistent with the design, otherwise, the strength and quality of the formed blind strip are affected. Adding water and stirring for not less than 2 minutes.
In the step of processing the surface of the blind strip, the surface of the blind strip is cleaned for a plurality of times by using clean water after being ground, so that the blind strip is cleaned completely. If the cleaning is not in place, white spots and stains can appear on the surface of the blind strip.
The surface protective agent finally applied to the surface can prevent excessive evaporation of water and can improve the durability of the blind strip.
The whole blind strip needs to be laid on a sunny day, and the construction temperature is not lower than 5 ℃. During the construction process, the evaporation and the loss of water are reduced.
Example 2:
this example was made in accordance with the method of example 1,
the differences are as follows: the embodiment provides a sesame ash cast-in-situ bare concrete blind strip which comprises the following raw materials in parts by weight:
100 parts of Portland cement, 18 parts of sulphoaluminate cement, 10 parts of rapid hardening and fine grinding cement, 19 parts of silica fume, 2 parts of water reducing agent, 0.3 part of polypropylene fiber, 112 parts of 40-mesh black sand, 0.01 part of retarder, 0.03 part of pigment black powder, 0.04 part of water-retaining agent and 35 parts of water.
Wherein the portland cement is 525# portland cement, and the sulphoaluminate cement is 425# sulphoaluminate cement.
The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.
Claims (9)
1. A cast-in-place bare concrete blind strip is characterized by comprising a pre-mixed raw material bag and water.
2. The cast-in-place bare concrete blind strip according to claim 1, which is a yellow rust stone-like cast-in-place bare concrete blind strip and comprises 48 parts by weight of water and a premixed raw material bag, wherein the premixed raw material bag comprises the following components:
100 parts of white cement, 20 parts of mineral powder, 57 parts of quick-hardening fine grinding cement, 0.2 part of pigment yellow powder, 0.009 part of pigment red powder, 9 parts of silica fume, 2 parts of water reducing agent, 71 parts of 20-40 mesh river sand, 42 parts of 8-10 mesh river sand, 97 parts of 10-20 mesh river sand, 0.2 part of polypropylene fiber, 0.03 part of retarder and 0.08 part of water-retaining agent.
3. The cast-in-place bare concrete strip according to claim 2, wherein the white cement is 52.5-grade white cement, and the mineral powder is 800 mesh mineral powder.
4. The cast-in-place bare concrete blind strip according to claim 1, which is made of sesame ash by the following components in parts by weight:
100 parts of Portland cement, 18 parts of sulphoaluminate cement, 10 parts of rapid-hardening fine grinding cement, 19 parts of silica fume, 2 parts of water reducing agent, 0.3 part of polypropylene fiber, 112 parts of 40-mesh black sand, 0.01 part of retarder, 0.03 part of pigment black powder and 0.04 part of water-retaining agent.
5. A cast-in-place bare concrete strip according to claim 4 wherein the portland cement is 525# portland cement and the sulphoaluminate cement is 425# sulphoaluminate cement.
6. A method for manufacturing a cast-in-place bare concrete blind strip according to any one of claims 1 to 5, which is characterized by comprising the following steps:
base layer treatment: cleaning a base pavement, coating an interface agent on the positioned blind strip laying position, uniformly punching 4 small holes with the hole diameter of 1 cm and the hole depth of 1.5 cm in the middle of the coating position after the surface is dried for about 1-2 hours, and cleaning dust generated by punching;
laying a blind strip mold: selecting a plastic plate, engraving a mould according to a blind strip shape, laying a template according to positioning, and sticking a double faced adhesive tape on the back of the template to prevent slurry leakage;
forming blind strips: adding water into the premixed raw material bag according to the designed weight part on site, uniformly stirring, pouring according to the template, scraping the surface of the template, covering with a film, maintaining, preliminarily shaping, and then demolding;
surface treatment of blind strips: and (3) trimming the periphery of the blind strip after demolding, washing residual slurry around the blind strip by using clear water, performing surface grinding treatment on the surface of the blind strip, cleaning by using clear water, laminating and maintaining, and brushing a surface protective agent after the surface is dried.
7. The method of claim 6, wherein in the substrate processing step, the perforations form moisture exchange channels between the blind strips and the substrate.
8. The method of claim 6, wherein in the blind bar forming step, the stirring time after the water is added is not less than 2 minutes.
9. The method as claimed in claim 6, wherein in the step of surface treatment of the blind strip, after the surface is ground, the surface is washed with clean water for a plurality of times to ensure clean washing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110728798.1A CN113636801A (en) | 2021-06-29 | 2021-06-29 | Cast-in-place bare concrete blind strip and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110728798.1A CN113636801A (en) | 2021-06-29 | 2021-06-29 | Cast-in-place bare concrete blind strip and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113636801A true CN113636801A (en) | 2021-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110728798.1A Withdrawn CN113636801A (en) | 2021-06-29 | 2021-06-29 | Cast-in-place bare concrete blind strip and manufacturing method thereof |
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| Country | Link |
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| CN (1) | CN113636801A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115108787A (en) * | 2022-07-21 | 2022-09-27 | 苏亿发 | Colored fair-faced concrete for major engineering projects and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005003254A1 (en) * | 2003-07-06 | 2005-01-13 | Karl Zimmermann Gmbh | Flame-retarding fire protection element |
| CN110803898A (en) * | 2019-11-19 | 2020-02-18 | 广东邦宁新材料科技有限公司 | Cast-in-place diamond color continuous blind road and manufacturing method thereof |
-
2021
- 2021-06-29 CN CN202110728798.1A patent/CN113636801A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005003254A1 (en) * | 2003-07-06 | 2005-01-13 | Karl Zimmermann Gmbh | Flame-retarding fire protection element |
| CN110803898A (en) * | 2019-11-19 | 2020-02-18 | 广东邦宁新材料科技有限公司 | Cast-in-place diamond color continuous blind road and manufacturing method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 吴潮玮: "《建筑材料》", 31 January 2018, 北京理工大学出版社 * |
| 张巨松: "《混凝土原材料》", 31 January 2019, 哈尔滨工业大学出版社 * |
| 李秋义等: "《绿色混凝土技术》", 30 September 2014, 中国建材工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115108787A (en) * | 2022-07-21 | 2022-09-27 | 苏亿发 | Colored fair-faced concrete for major engineering projects and preparation method thereof |
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Application publication date: 20211112 |