CN115974495A - High-performance concrete for laminated slab, manufacturing method thereof and laminated slab - Google Patents
High-performance concrete for laminated slab, manufacturing method thereof and laminated slab Download PDFInfo
- Publication number
- CN115974495A CN115974495A CN202310063338.0A CN202310063338A CN115974495A CN 115974495 A CN115974495 A CN 115974495A CN 202310063338 A CN202310063338 A CN 202310063338A CN 115974495 A CN115974495 A CN 115974495A
- Authority
- CN
- China
- Prior art keywords
- performance concrete
- portions
- water
- stirrer
- slab
- 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
Links
- 239000004574 high-performance concrete Substances 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000000835 fiber Substances 0.000 claims abstract description 22
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 16
- 239000004568 cement Substances 0.000 claims abstract description 13
- 239000006004 Quartz sand Substances 0.000 claims abstract description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000010881 fly ash Substances 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 6
- 239000011398 Portland cement Substances 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 238000013019 agitation Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 2
- 239000004567 concrete Substances 0.000 abstract description 7
- 238000010276 construction Methods 0.000 description 12
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Images
Classifications
-
- 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
Abstract
The invention discloses high-performance concrete for a laminated slab, a manufacturing method thereof and the laminated slab thereof, wherein the weight ratio of the high-performance concrete is kg/m 3 Counting: 490 to 510 parts of cement, 770 to 790 parts of fly ash, 450 to 460 parts of quartz sand, 9 to 11 parts of water reducing agent, 300 to 305 parts of water and 15 to 17 parts of fiber; according to the invention, the high-performance concrete is obtained by adding the fibers and mixing the cement, the fly ash, the quartz sand, the water reducing agent and the water in a specific ratio, so that the resistance of the concrete is obviously improvedCompressive, shear and crack resistance.
Description
Technical Field
The invention relates to the technical field of assembly type buildings, in particular to high-performance concrete for a laminated slab, a manufacturing method of the high-performance concrete and the laminated slab.
Background
The assembly type building is a novel construction mode relative to a cast-in-place concrete system, and mainly comprises the steps of modularizing the original working procedure on site, changing the modularized components and parts into a factory to be produced in a mechanical, automatic or even intelligent mode, then transporting the components and parts to the site, and carrying out hoisting operation and assembly type construction by a mechanical means. Wherein, the main atress component of building structure includes vertical component: walls and columns; horizontal component: beams, floors and stairs; therefore, the horizontal floor slab is one of main stress members forming a building structure, and has the characteristics of wide application range and large product consumption.
In general, when a laminated floor slab is constructed, steel pipe supports are required to be added at the bottom of the slab because the rigidity cannot meet the stress requirement of the laminated slab; meanwhile, due to the stress requirement, a post-cast layer with the width of 200-300 needs to be reserved between the laminated slabs, and a template needs to be erected before the post-cast layer is constructed; however, this construction method requires both support and formwork, resulting in a reduction in construction efficiency and an increase in construction cost.
In order to solve the above problems, the present invention provides a high performance concrete for a composite slab, a method for manufacturing the same, and a composite slab thereof, which solve the problems that the conventional concrete for constructing a composite slab has a limited rigidity enhancement of the formed composite slab, and a formwork still needs to be erected, thereby increasing the construction cost.
Disclosure of Invention
The invention aims to provide high-performance concrete for a laminated slab, a manufacturing method thereof and the laminated slab, and aims to improve the compression strength and the shear strength of the laminated slab and reduce the construction cost.
In order to achieve the purpose, the invention provides the following scheme:
the high-performance concrete for the laminated slab is prepared from the high-performance concrete according to the weight ratio of kg/m 3 Counting: 490 to 510 portions of cement, 770 to 790 portions of fly ash, 450 to 460 portions of quartz sand, 9 to 11 portions of water reducing agent, 300 to 305 portions of water and 15 to 17 portions of fiber.
Preferably, the fibers are steel fibers.
Preferably, the steel fibers have a length of 7 to 9 mm and a diameter of 0.15 to 0.17 mm.
Preferably, the cement is portland cement.
Preferably, the water reducing agent is a polycarboxylic acid water reducing agent.
A method for manufacturing high-performance concrete for a laminated slab comprises the following steps:
adding cement and fly ash into a stirrer to stir for 2 to 3 minutes;
stopping stirring by the stirrer, adding quartz sand, and stirring for 1-2 minutes;
adding water and a water reducing agent into the stirring tank under the stirring state of the stirrer, and keeping the stirrer for 4 to 5 minutes;
stopping stirring by the stirrer, adding half of the prepared amount of fibers, and stirring for 30-40 seconds;
the blender stops the agitation and adds the other half of the formulated amount of fiber and agitates for 30 seconds to 40 seconds.
Preferably, the blender is kept dry inside the blender prior to use.
The utility model provides a superimposed sheet, includes the bottom plate and sets up a plurality of floor above the bottom plate, the floor with the bottom plate passes through truss steel bar connection, it has the post-cast layer just to pour into a mould on the bottom plate the post-cast layer with the top surface of floor flushes.
Preferably, a plurality of the ribs are located in the same plane and are parallel to each other.
Preferably, the cross section of the truss reinforcing steel bar is triangular.
Compared with the prior art, the invention has the following technical effects:
1. according to the invention, the high-performance concrete is obtained by adding the fibers and mixing the cement, the fly ash, the quartz sand, the water reducing agent and the water in a specific proportion, so that the compression resistance, the shear resistance and the crack resistance of the concrete are obviously improved, and the problems that the rigidity of the formed laminated slab is enhanced by the conventional concrete for construction of the laminated slab is limited, a template still needs to be erected, and the construction cost is increased are solved.
Drawings
In order to more clearly illustrate the present invention or technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a schematic view of a construction of a laminated slab according to the present invention;
FIG. 2 shows the technical index of the high-performance concrete of the present invention;
wherein, 1, a rib plate; 2. a base plate; 3. and (5) truss reinforcing steel bars.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The invention aims to provide high-performance concrete for a laminated slab, a manufacturing method thereof and the laminated slab, and aims to improve the compression strength and the shear strength of the laminated slab and reduce the construction cost.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1, a high-performance concrete for a laminated slab, the weight ratio of the high-performance concrete is kg/m 3 Counting: 490 to 510 parts of cement, 770 to 790 parts of fly ash, 450 to 460 parts of quartz sand, 9 to 11 parts of water reducing agent, 300 to 305 parts of water and 15 to 17 parts of fiber; according to the invention, the high-performance concrete is obtained by adding the fibers and mixing the cement, the fly ash, the quartz sand, the water reducing agent and the water in a specific proportion, so that the compression resistance, the shearing resistance and the cracking resistance of the concrete are obviously improved, and the problem that the construction cost is increased because the rigidity of the formed laminated slab is enhanced to a limited extent and a template still needs to be erected by the conventional concrete for constructing the laminated slab is solved.
Further, the fibers are steel fibers.
Further, the steel fibers have a length of 7 mm to 9 mm and a diameter of 0.15 mm to 0.17 mm.
Further, the cement is portland cement.
Further, the water reducing agent is a polycarboxylic acid water reducing agent.
A method for manufacturing high-performance concrete for a laminated slab comprises the following steps: adding cement and fly ash into a stirrer to stir for 2 to 3 minutes; stopping stirring by the stirrer, adding quartz sand, and stirring for 1-2 minutes; adding water and a water reducing agent into the stirrer in a stirring state, and keeping the stirrer for 4 to 5 minutes; stopping stirring by the stirrer, adding half of the prepared amount of fiber, and stirring for 30-40 seconds; the blender stops the agitation and adds the other half of the formulated amount of fiber and agitates for 30 seconds to 40 seconds.
Further, the mixer ensures that the interior of the mixer is dry prior to use.
Referring to fig. 1, the floor slab comprises a bottom plate 2 and a plurality of rib plates 1 arranged above the bottom plate 2, wherein the rib plates 1 are connected with the bottom plate 2 through truss steel bars 3, a post-cast layer is poured on the bottom plate 2, and the post-cast layer is flush with the top surface of the rib plates 1.
Referring to fig. 1, a plurality of said ribs 1 are located in the same plane and parallel to each other.
Referring to fig. 1, the truss reinforcement 3 is triangular in cross-section.
The adaptation according to the actual needs is within the scope of the invention.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The high-performance concrete for the laminated slab is characterized in that the weight ratio of the high-performance concrete is kg/m 3 Counting: 490 to 510 portions of cement, 770 to 790 portions of fly ash, 450 to 460 portions of quartz sand, 9 to 11 portions of water reducing agent, 300 to 305 portions of water and 15 to 17 portions of fiber.
2. A high performance concrete for a composite slab as claimed in claim 1, wherein said fiber is steel fiber.
3. The high performance concrete for laminated slabs of claim 2, wherein said steel fibers have a length of 7 mm to 9 mm and a diameter of 0.15 mm to 0.17 mm.
4. A high performance concrete for laminated slabs according to claim 1, wherein said cement is portland cement.
5. The high-performance concrete for laminated slabs as claimed in claim 1, wherein said water-reducing agent is a polycarboxylic acid water-reducing agent.
6. A method for manufacturing high-performance concrete for a laminated slab is characterized by comprising the following steps:
adding cement and fly ash into a stirrer, and stirring for 2-3 minutes;
stopping stirring by the stirrer, adding quartz sand, and stirring for 1-2 minutes;
adding water and a water reducing agent into the stirrer in a stirring state, and keeping the stirrer for 4 to 5 minutes;
stopping stirring by the stirrer, adding half of the prepared amount of fiber, and stirring for 30-40 seconds;
the blender stops the agitation and adds the other half of the formulated amount of fiber and agitates for 30 seconds to 40 seconds.
7. A method for making high performance concrete for composite slabs according to claim 6, wherein the mixer is kept dry before use.
8. A composite slab, characterized in that, the high-performance concrete for composite slab of any claim 1 to 5 is applied, comprising a bottom plate and a plurality of ribbed plates arranged above the bottom plate, the ribbed plates are connected with the bottom plate through truss steel bars, a post-cast layer is cast on the bottom plate, and the post-cast layer is flush with the top surface of the ribbed plates.
9. A composite sheet according to claim 8 wherein said ribs are in the same plane and parallel to each other.
10. A composite slab according to claim 8 wherein said truss reinforcement is triangular in cross-section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310063338.0A CN115974495A (en) | 2023-01-17 | 2023-01-17 | High-performance concrete for laminated slab, manufacturing method thereof and laminated slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310063338.0A CN115974495A (en) | 2023-01-17 | 2023-01-17 | High-performance concrete for laminated slab, manufacturing method thereof and laminated slab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115974495A true CN115974495A (en) | 2023-04-18 |
Family
ID=85972370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310063338.0A Pending CN115974495A (en) | 2023-01-17 | 2023-01-17 | High-performance concrete for laminated slab, manufacturing method thereof and laminated slab |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115974495A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111155694A (en) * | 2020-02-04 | 2020-05-15 | 桂林理工大学 | Manufacturing method of steel bar truss reactive powder concrete laminated slab |
| CN112726920A (en) * | 2020-12-24 | 2021-04-30 | 佛山建装建筑科技有限公司 | Laminated plate |
-
2023
- 2023-01-17 CN CN202310063338.0A patent/CN115974495A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111155694A (en) * | 2020-02-04 | 2020-05-15 | 桂林理工大学 | Manufacturing method of steel bar truss reactive powder concrete laminated slab |
| CN112726920A (en) * | 2020-12-24 | 2021-04-30 | 佛山建装建筑科技有限公司 | Laminated plate |
Non-Patent Citations (2)
| Title |
|---|
| 金凌志等: "钢筋桁架超高性能混凝土叠合板受弯性能试验研究", 《工业建筑》, vol. 50, no. 3, pages 253 - 254 * |
| 黄海林等: "《考虑正交构造异性特征影响的预制带肋底板混凝土双向叠合板设计方法与研究》", vol. 1, 31 December 2020, 中国矿业大学出版社, pages: 4 - 5 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2848750B1 (en) | Method of casting in-situ steel wire mesh cement slab with spliced rack and suspended formwork | |
| CN101967851A (en) | Board-mixing structure assembly type house and building method thereof | |
| CN114197753B (en) | UHPC shuttering type steel reinforced concrete composite cylinder-shaped steel beam combined frame and construction method | |
| CN108360811A (en) | A kind of TRC pin joints formula can assembled permanent formwork and preparation method thereof | |
| CN109577192B (en) | Prefabricated bridge plate with built-in steel reinforcement framework | |
| JP2000345515A (en) | High-strength light composite girder bridge and construction method therefor | |
| CN1079130C (en) | Construction method of 3D architeccture system for house building | |
| CN210421568U (en) | Assembled beam and plate structure | |
| CN217027753U (en) | Novel truss structure | |
| CN115974495A (en) | High-performance concrete for laminated slab, manufacturing method thereof and laminated slab | |
| CN112814150B (en) | Rectangular steel sleeve type connection method for basic magnesium sulfate cement concrete assembled frame nodes | |
| CN212926589U (en) | Assembly type formwork-dismantling-free structural body formwork and cast-in-place formwork-dismantling-free structural body | |
| CN101831971A (en) | Concrete shear wall with short piers | |
| CN213926977U (en) | Prefabricated bottom plate with hidden beam and folded plate type laminated slab comprising prefabricated bottom plate | |
| CN109577190B (en) | Prefabricated bridge plate | |
| CN111851804A (en) | Assembly type formwork-dismantling-free structural body formwork and cast-in-place formwork-dismantling-free structural body | |
| CN112523444A (en) | Ultra-high performance concrete prefabricated light and thin stair step and assembly and connection process thereof | |
| CN112482637A (en) | GRC disassembly-free template for pouring concrete beam plate | |
| CN111456245A (en) | Steel reinforced concrete structure system and splicing method | |
| CN215106414U (en) | Assembled gypsum composite floor system | |
| CN214739121U (en) | Assembled gypsum composite floor slab | |
| CN217896917U (en) | Laminated slab of truss and concrete | |
| CN109577191B (en) | Prefabricated bridge plate based on corrugated steel plate | |
| CN217053953U (en) | Building node structure with notch assembled full-prefabricated floor slab and supporting members | |
| CN212689235U (en) | Steel reinforced concrete structure system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |