CN115506532A - Precast concrete building block and manufacturing method thereof - Google Patents
Precast concrete building block and manufacturing method thereof Download PDFInfo
- Publication number
- CN115506532A CN115506532A CN202211196937.1A CN202211196937A CN115506532A CN 115506532 A CN115506532 A CN 115506532A CN 202211196937 A CN202211196937 A CN 202211196937A CN 115506532 A CN115506532 A CN 115506532A
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- Prior art keywords
- block
- precast concrete
- block body
- groove
- protrusions
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C1/00—Building elements of block or other shape for the construction of parts of buildings
- E04C1/40—Building elements of block or other shape for the construction of parts of buildings built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/14—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/04—Discharging the shaped articles
- B28B13/06—Removing the shaped articles from moulds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/003—Methods for mixing
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- 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
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a precast concrete block which comprises a block body, wherein two ends of the block body in the length direction are respectively provided with a first bulge and a groove, the middle part of the block body is provided with a mounting hole which vertically penetrates through the block body, the groove is gradually narrowed towards the opening end of the groove, when a plurality of block bodies are arranged in parallel, the first bulge is embedded in the adjacent groove, the upper end of the block body is provided with two second bulges at intervals, the lower end of the block body is provided with two limiting grooves which respectively correspond to the two second bulges, and when the plurality of block bodies are stacked up and down, the lower end of the block body is provided with two limiting grooves which correspond to the two second bulges. The invention provides a precast concrete block and a manufacturing method thereof, wherein the precast concrete blocks can be easily interlocked, and the rapid positioning in the stacking process of the precast concrete blocks is convenient to realize.
Description
Technical Field
The invention relates to the field of precast concrete blocks. More particularly, the present invention relates to a precast concrete segment and a method for manufacturing the same.
Background
The interlocking precast concrete blocks have good water permeability, can effectively reduce the uplift pressure and enhance the stability of the revetment slope surface; meanwhile, because the adjacent building blocks are locked with each other, the protection and building slope surface has better performance in the aspects of integrity and scouring resistance; meanwhile, the method has the characteristics of high construction speed, no need of mortar masonry, adaptability to low-temperature working environment and the like, and has great advantages in manufacturing cost compared with stone.
At present, the connection structures of some interlocking precast concrete blocks adopted at home and abroad are mostly mortise and tenon type or hook groove type, namely, two adjacent lining block bodies are mostly in a hook-and-buckle type. The method has the defect that the construction efficiency is greatly reduced because the lining blocks have directionality in the building process, the directions need to be adjusted from left to right and up and down in the construction process, and the lining blocks are paved according to a certain arrangement sequence. In addition, when adjacent lining blocks are locked with each other, the locking structures of the adjacent lining blocks are crossed up and down, so that the thickness of the stress part of the locking structure is required to be thinner than that of other parts of the blocks, the strength of the part of the locking structure is reduced, and the integral stability of the slope lining masonry is poor.
Disclosure of Invention
The invention aims to provide precast concrete blocks and a manufacturing method thereof, wherein the precast concrete blocks can be easily interlocked, and the precast concrete blocks can be quickly positioned in the stacking process.
In order to achieve the objects and other advantages according to the present invention, a precast concrete block is provided, which includes a block body, wherein a first protrusion and a groove are respectively formed at both ends of the block body in a length direction, a mounting hole vertically penetrating through the block body is formed in the middle of the block body, the groove is gradually narrowed toward an open end of the groove, when a plurality of block bodies are arranged side by side, the first protrusion is embedded in the adjacent groove, two second protrusions are spaced at an upper end of the block body, two limiting grooves corresponding to the two second protrusions are formed at a lower end of the block body, and when the plurality of block bodies are stacked up and down, two limiting grooves corresponding to the two second protrusions are formed at a lower end of the block body.
Preferably, in the precast concrete segment, a cross section of the first protrusion is an isosceles trapezoid.
Preferably, in the precast concrete block, a plurality of through holes are formed in the block body at intervals in the length direction of the block body, and when the plurality of block bodies are arranged in parallel, the adjacent through holes are communicated and provided with inserting steel bars penetrating through the through holes.
Preferably, in the precast concrete block, two strip-shaped grooves are formed in the upper end of the block body at intervals, two third protrusions corresponding to the two strip-shaped grooves are arranged at the lower end of the block body, and when the block bodies are stacked up and down, the third protrusions are embedded in the strip-shaped grooves below the block bodies.
Preferably, in the precast concrete block, the upper and lower ends of the block body are provided with frosted layers.
Preferably, in the precast concrete segment, the segment body is composed of the following components: concrete, broken stone, coal gangue, water washing blast furnace slag and silica sand.
The invention also provides a preparation method of the precast concrete block, which comprises the following steps:
s1, uniformly mixing the raw materials, adding water, mixing and stirring to obtain slurry for later use;
s2, placing the slurry obtained in the S1 in a block mold, standing, and waiting for the blank to be molded;
s3, after the blank in the building block mold is molded, demolding, and taking out the blank from the building block mold;
and S4, curing the blank obtained in the S3 to obtain the precast concrete block.
The precast concrete blocks can be easily interlocked, and the rapid positioning in the stacking process of the precast concrete blocks is convenient to realize. Meanwhile, the stability of the structure of the precast concrete blocks after being piled up can be improved.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic view of the structure of a precast concrete block according to the present invention;
FIG. 2 is a left side view of the precast concrete segment according to the present invention;
FIG. 3 is a cross-sectional view of a precast concrete segment according to the present invention;
fig. 4 is a schematic view of the connection between precast concrete segments according to the present invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It should be noted that in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 4, an embodiment of the present invention provides a precast concrete block, including a block body 1, where two ends of the block body 1 in a length direction are respectively provided with a first protrusion 2 and a groove 3, a middle portion of the block body is provided with a mounting hole 4 vertically penetrating through the block body, the groove 3 is gradually narrowed toward an opening end of the groove, when a plurality of block bodies 1 are arranged side by side, the first protrusion 2 is embedded in the adjacent groove 3, two second protrusions 5 are arranged at an interval at an upper end of the block body 1, two limiting grooves corresponding to the two second protrusions 5 are arranged at a lower end of the block body, and when a plurality of block bodies 1 are stacked up and down, two limiting grooves corresponding to the two second protrusions 5 are arranged at a lower end of the block body.
In the embodiment, when a plurality of building block bodies 1 are used for building a wall, the construction is carried out from bottom to top layer by layer, the building block bodies 1 of the same layer are arranged in parallel along the length direction, and the first bulges 2 are embedded in the adjacent grooves 3, so that the connection between the adjacent building block bodies 1 is realized; in this embodiment, the grooves 3 are tapered towards their open ends so as to avoid sliding in the horizontal plane between adjacent ones of the block bodies 1. After the construction of completion one deck, carry out its building block body 1's of its one deck construction again, the one-to-one of its building block body 1 of last one deck is placed in its building block body 1 upper end of next one deck, connect between two its building block bodies 1 of upper and lower spaced through second arch 5 and the spacing groove that corresponds, make stable connection between two its building block bodies 1 of upper and lower spaced, after accomplishing the connection of its building block body 1 of every layer, 4 equal coaxial and the becoming passageway of mounting hole in the middle part of the seven bodies of every row, laid reinforcing bar net piece or vertical reinforcing bar and filled core concrete in the passageway, form weak frame system, improve the stability of building a wall.
Preferably, as another embodiment of the present invention, the cross section of the first protrusion 2 is an isosceles trapezoid.
Preferably, as another embodiment of the present invention, a plurality of through holes 7 are formed in the block body 1 at intervals along the length direction thereof, and when a plurality of block bodies 1 are arranged in parallel, the adjacent through holes 7 are communicated and provided with insertion reinforcing bars penetrating through the through holes.
In the embodiment, in order to further increase the stability of connection between the building block bodies 1 in the same row, a plurality of through holes 7 arranged along the length direction of the building block bodies 1 are arranged on the building block bodies 1 at intervals, when a plurality of building block bodies 1 are arranged in parallel, the through holes 7 in the same position of the building block bodies 1 in the same row are communicated, inserting steel bars penetrating through the inserting steel bars are arranged in the through holes, and the stability of connection between the building block bodies 1 in the same row is increased through a plurality of horizontally arranged steel bars.
Preferably, as another embodiment of the present invention, two strip-shaped grooves 8 are formed at the upper end of the block body 1 at intervals, two third protrusions 9 corresponding to the two strip-shaped grooves 8 are formed at the lower end of the block body, and when a plurality of block bodies 1 are stacked up and down, the third protrusions 9 are embedded in the strip-shaped grooves 8 below the block bodies.
In the embodiment, the strip-shaped groove 8 and the third bulge 9 are arranged, so that the connection stability between two vertically spaced building block bodies 1 is further improved.
Preferably, as another embodiment of the present invention, the upper and lower ends of the block body 1 are provided with a frosted layer.
In the embodiment, the upper end and the lower end of the building block body 1 are respectively provided with the frosting layer, so that the friction force between the building block body and the building block body is increased.
Preferably, as another embodiment of the present invention, the block body 1 thereof is composed of the following components: concrete, broken stone, coal gangue, water washing blast furnace slag and silica sand.
In the embodiment, the building blocks are divided into concrete, cement mortar, aerated concrete, fly ash silicate, coal gangue, artificial ceramsite, slag waste and other building blocks according to materials. The main performances of the concrete block are workability, strength, deformation, durability and material and structure, specifically:
and (3) workability:
the most important properties of concrete mixtures. It comprehensively expresses the consistency, the fluidity, the plasticity, the anti-demixing and segregation bleeding performance, the easy-to-smear property and the like of the mixture. Methods and indexes for measuring and expressing the workability of the mixture are various, and China mainly adopts slump (millimeter) measured by a truncated cone slump cone and a vita time second measured by a vita instrument as main indexes of the consistency.
Strength:
the most important mechanical property of the hardened concrete refers to the capability of the concrete to resist stress such as compression, tension, bending, shearing and the like. The water cement ratio, the variety and the dosage of cement, the variety and the dosage of aggregate, stirring, molding and curing directly influence the strength of concrete. The concrete is classified into strength grades according to standard compressive strength (cubic compressive strength with 95% guarantee rate measured by standard test method by using a cube with side length of 150mm as a standard test piece and curing for 28 days under standard curing conditions), which are called as labels and are classified into C10, C15, C20, C25 and the like. The tensile strength of the concrete is only 1/13-1/8 of the compressive strength of the concrete. The improvement of the ratio of tensile strength to compressive strength of concrete is an important aspect of concrete modification.
Deformation:
the concrete can deform under the action of load or temperature and humidity, and mainly comprises elastic deformation, plastic deformation, shrinkage, temperature deformation and the like. The elastic deformation of concrete under short-term loading is mainly expressed by the modulus of elasticity. Under the long-term loading, the stress is unchanged, the phenomenon that the strain is continuously increased is creep, the phenomenon that the strain is unchanged, and the phenomenon that the stress is continuously reduced is relaxation. The volume deformation due to hydration of cement, carbonization and water loss of set cement is called shrinkage. The deformation of concrete is divided into two types, one is the stress deformation under the load action, such as the deformation of monotonous short-term loading, the deformation under the long-term action of load and the deformation of repeated loading; the other is independent of stress, called volumetric deformation, such as concrete shrinkage and deformation due to temperature changes.
Durability:
in general, concrete has good durability. However, in cold regions, particularly in engineering sites with varying water levels and in saturated water conditions, concrete is subject to frequent alternating freezing and thawing. Therefore, the concrete has certain frost resistance requirement. When used in water-tight engineering, concrete is required to have good impermeability and corrosion resistance. The impermeability, frost resistance and erosion resistance are the durability of concrete.
Materials and structures:
the common concrete is an artificial stone material formed by mixing and hardening cement, coarse aggregate broken stone or pebble, fine aggregate sand, an additive and water. The sand and the stone play a role of a framework in the concrete and inhibit the shrinkage of the cement; the cement and water form cement slurry which is wrapped on the surface of the coarse and fine aggregates and fills gaps among the aggregates. The cement paste has a lubricating effect before hardening, so that the concrete mixture has good working performance, and the aggregates are cemented together after hardening to form a strong whole.
The embodiment adds coal gangue, water washing blast furnace slag and silicon on the basis of conventional concrete and broken stone to improve the strength, deformation and durability of the concrete.
The invention also provides a preparation method of the precast concrete block, which comprises the following steps:
s1, uniformly mixing the raw materials, adding water, mixing and stirring to obtain slurry for later use;
s2, placing the slurry obtained in the S1 into a building block die, standing, and waiting for blank forming;
s3, after the blank in the building block mold is molded, demolding, and taking out the blank from the building block mold;
and S4, curing the blank obtained in the S3 to obtain the precast concrete block.
Preferably, as another embodiment of the present invention, on the basis of the embodiment shown in fig. 1, the present invention further includes:
while embodiments of the invention have been described above, it is not intended to be limited to the details shown, particular embodiments, but rather to those skilled in the art, and it is to be understood that the invention is capable of numerous modifications and that various changes may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (7)
1. The precast concrete block is characterized by comprising a block body (1), wherein two ends of the block body (1) in the length direction are respectively provided with a first protrusion (2) and a groove (3), the middle of the block body is provided with a mounting hole (4) which vertically penetrates through the block body, the groove (3) gradually narrows towards the opening end of the groove, when a plurality of block bodies (1) are arranged side by side, the first protrusion (2) is embedded in the adjacent groove (3), two second protrusions (5) are arranged at the upper end of the block body (1) at intervals, two limiting grooves which respectively correspond to the two second protrusions (5) are arranged at the lower end of the block body, and when the block bodies (1) are stacked up and down, two limiting grooves which correspond to the two second protrusions (5) are arranged at the lower end of the block body.
2. A precast concrete segment according to claim 1, wherein the cross section of the first projection (2) is isosceles trapezoid.
3. A precast concrete segment according to claim 1, wherein a plurality of through holes (7) are formed in the segment body (1) at intervals in the length direction thereof, and when a plurality of the segment bodies (1) are arranged side by side, the adjacent through holes (7) are communicated and provided with insertion reinforcing bars penetrating therethrough.
4. A precast concrete segment according to claim 1, wherein the upper end of the segment body (1) is provided with two strip-shaped grooves (8) at intervals, the lower end thereof is provided with two third protrusions (9) corresponding to the two strip-shaped grooves (8), and when a plurality of segments of the segment body (1) are stacked up and down, the third protrusions (9) are embedded in the strip-shaped grooves (8) therebelow.
5. The precast concrete segment according to claim 1, wherein both the upper and lower ends of the segment body (1) are provided with frosted layers.
6. A precast concrete segment according to any one of claims 1 to 5, wherein the segment body (1) thereof is composed of the following components: concrete, broken stone, coal gangue, water washing blast furnace slag and silica sand.
7. A method of making a precast concrete segment according to claim 6, comprising the steps of:
s1, uniformly mixing the raw materials, adding water, mixing and stirring to obtain slurry for later use;
s2, placing the slurry obtained in the S1 in a block mold, standing, and waiting for the blank to be molded;
s3, after the blank in the building block mold is molded, demolding, and taking out the blank from the building block mold;
and S4, curing the blank obtained in the S3 to obtain the precast concrete block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211196937.1A CN115506532A (en) | 2022-09-29 | 2022-09-29 | Precast concrete building block and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211196937.1A CN115506532A (en) | 2022-09-29 | 2022-09-29 | Precast concrete building block and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN115506532A true CN115506532A (en) | 2022-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211196937.1A Pending CN115506532A (en) | 2022-09-29 | 2022-09-29 | Precast concrete building block and manufacturing method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206052773U (en) * | 2016-09-09 | 2017-03-29 | 河北晶通建筑科技股份有限公司 | A kind of retaining wall block |
| KR20180098012A (en) * | 2017-02-24 | 2018-09-03 | (주)신성건설 | Concrete block and construction method for mending road using the same |
| CN212836082U (en) * | 2020-06-18 | 2021-03-30 | 惠州市英建实业有限公司 | Sound-insulation aerated concrete block |
| CN213597303U (en) * | 2020-10-24 | 2021-07-02 | 遵化市宏伟建筑工程有限公司 | Prefabricated member for building wall |
| CN214461721U (en) * | 2020-12-29 | 2021-10-22 | 沈阳建筑大学 | Clamping groove type phase change concrete hollow building block |
-
2022
- 2022-09-29 CN CN202211196937.1A patent/CN115506532A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206052773U (en) * | 2016-09-09 | 2017-03-29 | 河北晶通建筑科技股份有限公司 | A kind of retaining wall block |
| KR20180098012A (en) * | 2017-02-24 | 2018-09-03 | (주)신성건설 | Concrete block and construction method for mending road using the same |
| CN212836082U (en) * | 2020-06-18 | 2021-03-30 | 惠州市英建实业有限公司 | Sound-insulation aerated concrete block |
| CN213597303U (en) * | 2020-10-24 | 2021-07-02 | 遵化市宏伟建筑工程有限公司 | Prefabricated member for building wall |
| CN214461721U (en) * | 2020-12-29 | 2021-10-22 | 沈阳建筑大学 | Clamping groove type phase change concrete hollow building block |
Non-Patent Citations (1)
| Title |
|---|
| 田耕: "建材工业能源管理与节能", 武汉工业大学出版社, pages: 155 - 160 * |
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