CN115107165B - Preparation process of concrete with high workability - Google Patents
Preparation process of concrete with high workability Download PDFInfo
- Publication number
- CN115107165B CN115107165B CN202210894968.8A CN202210894968A CN115107165B CN 115107165 B CN115107165 B CN 115107165B CN 202210894968 A CN202210894968 A CN 202210894968A CN 115107165 B CN115107165 B CN 115107165B
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- Prior art keywords
- concrete
- plate
- fixedly connected
- rod
- shielding plate
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- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000004575 stone Substances 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 21
- 238000003756 stirring Methods 0.000 claims abstract description 18
- 239000004568 cement Substances 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 239000002893 slag Substances 0.000 claims abstract description 12
- 239000010438 granite Substances 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000004576 sand Substances 0.000 claims abstract description 4
- 238000005303 weighing Methods 0.000 claims abstract description 4
- 238000003825 pressing Methods 0.000 claims description 43
- 238000001514 detection method Methods 0.000 claims description 41
- 230000001681 protective effect Effects 0.000 claims description 35
- 238000004140 cleaning Methods 0.000 claims description 17
- 238000011084 recovery Methods 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims description 3
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 claims description 3
- 239000000292 calcium oxide Substances 0.000 claims description 3
- 235000012255 calcium oxide Nutrition 0.000 claims description 3
- 150000002191 fatty alcohols Chemical class 0.000 claims description 3
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 3
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 229910001388 sodium aluminate Inorganic materials 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- 150000008130 triterpenoid saponins Chemical class 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 6
- 210000004907 gland Anatomy 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 12
- 238000001879 gelation Methods 0.000 abstract description 4
- 230000036571 hydration Effects 0.000 abstract description 4
- 238000006703 hydration reaction Methods 0.000 abstract description 4
- 238000005461 lubrication Methods 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 4
- 239000011148 porous material Substances 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 description 10
- 206010016807 Fluid retention Diseases 0.000 description 6
- 239000003960 organic solvent Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000009776 industrial production Methods 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 229920002774 Maltodextrin Polymers 0.000 description 2
- 239000005913 Maltodextrin Substances 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- 238000009435 building construction Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000009191 jumping Effects 0.000 description 2
- 229940035034 maltodextrin Drugs 0.000 description 2
- 238000012372 quality testing Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000001141 propulsive effect Effects 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0806—Details; Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/0007—Pretreatment of the ingredients, e.g. by heating, sorting, grading, drying, disintegrating; Preventing generation of dust
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention belongs to the technical field of concrete preparation, in particular to a high-workability concrete preparation process, which comprises the following steps of weighing the raw materials of concrete: granite broken stone, cement and granulated blast furnace slag, and then sequentially adding the granite broken stone, river sand, cement and the granulated blast furnace slag into a stirrer; starting a stirrer to stir the raw materials uniformly, and slowly adding water in the stirring process; continuously adding an accelerator and an air entraining agent into the raw materials and uniformly stirring; the concrete prepared by the process is added with a proper amount of granulated blast furnace slag, has a certain hydraulic gelation property, can be filled in pores among cement particles to form gel with hydration products, improves the internal structure of the concrete and the compactness of the concrete, has a certain lubrication effect, can improve the workability of the concrete, and has Huang Gangyan broken stone, so that the high temperature resistance of the concrete can be improved, and the concrete has a certain compressive strength.
Description
Technical Field
The invention belongs to the technical field of concrete preparation, and particularly relates to a high-workability concrete preparation process.
Background
Concrete workability is also referred to as concrete workability, and specifically includes three aspects of fluidity, cohesiveness, and water retention. The workability of the concrete mixture is to ensure that the components are uniformly distributed, compact and homogeneous after the procedures of transportation, pouring, vibration, wiping and pressing of the concrete mixture and the like. The workability of the concrete for the tunnel directly influences the construction of the tunnel concrete engineering and even has important influence on the quality of the tunnel concrete structure.
The publication No. CN104558215A discloses a double-modified maltodextrin high-efficiency water reducing agent, which is prepared by diluting concentrated sulfuric acid with an organic solvent, sulfonating maltodextrin at low temperature, esterifying a sulfonated product with binary anhydride, and finally dissolving the product in water, adding alkali for neutralization, wherein the water solubility is good, and the water reducing performance is superior to that of naphthalene.
In the prior art, organic solvents are introduced in the synthesis process during the preparation of concrete, so that the environment is polluted, the preparation process is too complex, and the industrial production is not facilitated.
Disclosure of Invention
In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved.
The technical scheme adopted for solving the technical problems is as follows: the invention relates to a preparation process of concrete with high workability, which comprises the following steps: the method comprises the following steps:
s1, weighing the raw materials of concrete: granite broken stone, cement and granulated blast furnace slag, and then sequentially adding the granite broken stone, river sand, cement and the granulated blast furnace slag into a stirrer;
s2, starting a stirrer to stir the raw materials uniformly, and slowly adding water in the stirring process;
s3, continuously adding an accelerator and an air entraining agent into the raw materials and uniformly stirring.
The concrete prepared by the process is added with a proper amount of granulated blast furnace slag, has a certain hydraulic gelation property, can be filled in pores among cement particles to form gel with hydration products, improves the internal structure of the concrete and the compactness of the concrete, has a certain lubrication effect, can improve the workability of the concrete, and has Huang Gangyan broken stone, so that the high temperature resistance of the concrete can be improved, and the concrete has a certain compressive strength; by adding the accelerator and the air entraining agent, the fluidity of the mixture is obviously increased, and the cohesiveness and the water retention of the mixture are effectively improved; and organic solvent is not required to be introduced in the synthesis process, so that the pollution to the environment is avoided, the preparation process is more convenient, and the industrial production is facilitated.
Preferably, the accelerator in the step S3 is a material formed by stirring sodium aluminate, sodium carbonate and quicklime; the air entraining agent is a material formed by stirring fatty alcohol polyoxyethylene ether, triterpenoid saponin and sodium alkylbenzenesulfonate; after the concrete is prepared, the cohesiveness of the concrete needs to be detected by a detection seat.
The accelerator and the air entraining agent are added, so that the cohesiveness and the water retention of the mixture can be effectively improved, the compactness of concrete is improved, the cracking risk of the concrete is reduced, the problems of concrete quality and durability caused by poor compactness of some concrete in the prior art are solved, and the concrete is beneficial to the use of building construction.
Preferably, the inner part of the detection seat is fixedly connected with a placement cavity; a telescopic rod is fixedly connected inside the placing cavity; the outer surface of the telescopic rod is sleeved with a telescopic spring; a placing plate is fixedly arranged on the upper end face of the telescopic rod; connecting ropes are fixedly arranged on the left side and the right side of the placing plate; the inner part of the detection seat is rotatably connected with a fixed pulley; the outer surface of the detection seat is rotationally connected with shielding plates which are symmetrically arranged; the shielding plate is L-shaped, and a rotating shaft matched with the shielding plate is arranged on the surface of the detection seat; one side of the connecting rope far away from the placing plate is fixedly connected to the outer surface of the shielding plate through the outer surface of the fixed pulley; the surface of the placing plate is fixedly connected with a pressure sensor; when the device works, in an initial state, the shielding plates at two sides of the detection seat are in an open state; when detecting fashioned concrete, place the board surface with the concrete that will wait to detect, then place board self weight increase, and its self weight is greater than telescopic link and the props of telescopic spring self, afterwards the telescopic link can drive and place board downwardly moving, place the board and can pull the connecting rope of its both sides simultaneously, afterwards the connecting rope can drive the shielding plate rotation of its other one end through the effect of fixed pulley, afterwards the shielding plate of both sides can take place to rotate, and support the both sides of pressing at placing the board, not only can fix the concrete that waits to detect this moment, avoid appearing the phenomenon of skew to the concrete detection in-process, and under the effect of both sides shielding plate and placing the cavity, can make this detection seat be a comparatively confined space, avoid waiting to detect the concrete and receive the too big phenomenon that leads to its rubble to jump in the detection process, the security is high, be favorable to the quality detection of later pressure sensor to the concrete.
Preferably, the left side and the right side of the pressure sensor are fixedly connected with limiting frames; the inside of the limit frame is connected with symmetrically arranged protective film plates in a sliding manner; the inside of the detection seat is connected with column-shaped rods which are symmetrically arranged in a sliding manner; the surface of each column-shaped rod is fixedly connected with a bump; the bottom end of the column type rod is fixedly connected with a compression spring; the shape of one side of the protective film plate, which is close to the column-shaped rod, is arc-shaped; during operation, when the shielding plate on two sides rotates, the shielding plate can simultaneously move to one side close to the column-shaped rod, then the shielding plate can be in contact with the upper end of the column-shaped rod and extrude the column-shaped rod, so that the column-shaped rod moves downwards, then the column-shaped rod can simultaneously drive the convex block to move, then the convex block can be in contact with and extrude the arc-shaped part of the protective film plate, the protective film plates on two sides are mutually close to each other and are paved on the surface of the pressure sensor, the surface of the pressure sensor is protected, the phenomenon that the surface of the pressure sensor is scratched when concrete is pressed can be avoided, and the service life of the pressure sensor is prolonged.
Preferably, the outer surface of the protective film plate is fixedly connected with a cleaning brush; the outer surface of the cleaning brush is fixedly connected with brush hair arranged in an array; during operation, when the protective film plate moves, the protective film plate can drive the cleaning brush on the surface of the protective film plate to move at the same time, and the cleaning brush can clean broken stone on the surface of the pressure sensor, so that the use is more convenient.
Preferably, the surface of the protective film plate is sleeved with an extension spring; a recovery seat is fixedly connected to one side, close to the protective film plate, of the inner part of the placement cavity; the surface of the recovery seat is provided with a recovery cavity; during operation, after once detecting, when extension spring is replied by compression state, extension spring can drive protection lamina membranacea and brush cleaner again simultaneously and remove, makes the brush cleaner clean the rubble that the quality testing concrete dropped is accomplished to pressure sensor surface, and then partial rubble can drop to retrieve in the seat and concentrate the recovery, and this pressure sensor's reuse after the convenience.
Preferably, the outer surface of the shielding plate is fixedly connected with a limiting plate; the number of the limiting plates is two, and the limiting plates are symmetrically arranged; the surface of the limiting plate is sleeved with a rubber sleeve; when the shielding plate is propped against the outer surface of the pressure sensor, the limiting plate on one side of the shielding plate can stand on the outer surface of the pressure sensor in a column-shaped state, so that the outside driving pressure cylinder can conveniently detect the quality of concrete, a certain shielding protection effect can be achieved, and broken stones are prevented from jumping to the side of a worker.
Preferably, the inside of the shielding plate is connected with a pressing rod in a sliding way; a rotating rod is rotatably connected to the inside of the shielding plate; a pressing plate is connected inside the shielding plate and on one side close to the rotating rod in a sliding manner; the pressing rod and the pressing plate are arranged at intervals; a chute matched with the pressing rod and the pressing plate is formed in the shielding plate; during operation, when the shielding plate is propped against the concrete surface, the propping rod in the shielding plate can be firstly contacted with the concrete surface, the propping rod can move to one side close to the rotating rod, the rotating rod can deflect, the pressing plate is pressed down, the pressing plate is made to press down concrete, the bulges at the higher part of the concrete surface are flattened, and therefore the detection of the concrete is facilitated.
Preferably, the surface of the pressing plate is fixedly connected with a conical block; the conical blocks are arranged in a plurality, and are equidistantly arranged on the outer surface of the pressing plate; the conical blocks are arranged, so that when the pressing plate is contacted with concrete, the conical blocks can crush the bulges of the concrete part as soon as possible.
Preferably, the outer surface of the pressing rod is sleeved with a pressing spring; the inside of shielding plate is provided with the spacing seat with sticis spring looks adaptation.
The beneficial effects of the invention are as follows:
1. according to the concrete preparation process with high workability, a proper amount of granulated blast furnace slag is added into the concrete, so that the concrete has certain hydraulic gelation property, can be filled in pores among cement particles to form gel with hydration products, improves the internal structure of the concrete and the compactness of the concrete, has a certain lubrication effect, can improve the workability of the concrete, and has Huang Gangyan broken stone, so that the high temperature resistance of the concrete can be improved, and the concrete has certain compressive strength; by adding the accelerator and the air entraining agent, the fluidity of the mixture is obviously increased, and the cohesiveness and the water retention of the mixture are effectively improved; and organic solvent is not required to be introduced in the synthesis process, so that the pollution to the environment is avoided, the preparation process is more convenient, and the industrial production is facilitated.
2. According to the high-workability concrete preparation process, the detection seat can be a relatively closed space under the action of the shielding plates at the two sides and the placing cavity, so that the phenomenon that broken stones of the concrete fly off due to overlarge pressure of the concrete to be detected in the detection process is avoided, the safety is high, and the quality detection of the concrete by the pressure sensor is facilitated.
3. According to the high-workability concrete preparation process, the column-shaped rod moves downwards, then the column-shaped rod drives the convex blocks to move at the same time, and then the convex blocks are contacted with the arc-shaped parts of the protective film plates and extruded, so that the protective film plates on two sides are close to each other and paved on the surface of the pressure sensor to protect the surface of the pressure sensor, at the moment, the phenomenon that the surface of the pressure sensor is scratched when the concrete is pressed can be avoided, and the service life of the pressure sensor is prolonged.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a perspective view of a test seat according to the present invention;
FIG. 3 is a cross-sectional view of a test seat in accordance with the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3A in accordance with the present invention;
FIG. 5 is an enlarged view of a portion of the invention at B of FIG. 3;
FIG. 6 is a schematic view of a part of the structure of the recycling seat in the present invention;
fig. 7 is a schematic view of a compression spring according to a second embodiment of the present invention.
In the figure: 1. a detection seat; 2. placing the cavity; 3. a telescopic rod; 4. a telescopic spring; 5. placing a plate; 6. a connecting rope; 7. a fixed pulley; 8. a shielding plate; 9. a pressure sensor; 10. a limit frame; 11. a protective film plate; 111. a cleaning brush; 112. a tension spring; 12. a column-shaped rod; 13. a bump; 14. a compression spring; 15. a recycling seat; 16. a limiting plate; 17. a pressing rod; 18. a rotating rod; 19. a flattening plate; 20. a conical block; 21. compressing the spring.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Example 1
As shown in fig. 1, the preparation process of the concrete with high workability according to the embodiment of the invention comprises the following steps:
s1, weighing the raw materials of concrete: granite broken stone, cement and granulated blast furnace slag, and then sequentially adding the granite broken stone, river sand, cement and the granulated blast furnace slag into a stirrer;
s2, starting a stirrer to stir the raw materials uniformly, and slowly adding water in the stirring process;
s3, continuously adding an accelerator and an air entraining agent into the raw materials and uniformly stirring.
The concrete prepared by the process is added with a proper amount of granulated blast furnace slag, has a certain hydraulic gelation property, can be filled in pores among cement particles to form gel with hydration products, improves the internal structure of the concrete and the compactness of the concrete, has a certain lubrication effect, can improve the workability of the concrete, and has Huang Gangyan broken stone, so that the high temperature resistance of the concrete can be improved, and the concrete has a certain compressive strength; by adding the accelerator and the air entraining agent, the fluidity of the mixture is obviously increased, and the cohesiveness and the water retention of the mixture are effectively improved; and organic solvent is not required to be introduced in the synthesis process, so that the pollution to the environment is avoided, the preparation process is more convenient, and the industrial production is facilitated.
The accelerator in the step S3 is a material formed by stirring sodium aluminate, sodium carbonate and quicklime; the air entraining agent is a material formed by stirring fatty alcohol polyoxyethylene ether, triterpenoid saponin and sodium alkylbenzenesulfonate; after the concrete preparation is completed, the cohesiveness of the concrete needs to be detected by the detection seat 1.
The accelerator and the air entraining agent are added, so that the cohesiveness and the water retention of the mixture can be effectively improved, the compactness of concrete is improved, the cracking risk of the concrete is reduced, the problems of concrete quality and durability caused by poor compactness of some concrete in the prior art are solved, and the concrete is beneficial to the use of building construction.
The inside of the detection seat 1 is fixedly connected with a placement cavity 2; the inside of the placing cavity 2 is fixedly connected with a telescopic rod 3; the outer surface of the telescopic rod 3 is sleeved with a telescopic spring 4; a placing plate 5 is fixedly arranged on the upper end surface of the telescopic rod 3; connecting ropes 6 are fixedly arranged on the left side and the right side of the placing plate 5; the inside of the detection seat 1 is rotatably connected with a fixed pulley 7; the outer surface of the detection seat 1 is rotationally connected with shielding plates 8 which are symmetrically arranged; the shape of the shielding plate 8 is L-shaped, and a rotating shaft matched with the shielding plate 8 is arranged on the surface of the detection seat 1; the side of the connecting rope 6 far away from the placing plate 5 is fixedly connected to the outer surface of the shielding plate 8 through the outer surface of the fixed pulley 7; the surface of the placing plate 5 is fixedly connected with a pressure sensor 9; when the device works, in an initial state, the shielding plates 8 at two sides of the detection seat 1 are in an open state; when detecting fashioned concrete, place the concrete that will wait to detect and place the board 5 surface, later place board 5 self weight increase, and its self weight is greater than telescopic link 3 and the propulsive force of telescopic spring 4 self, later telescopic link 3 can drive and place board 5 downwardly moving, place board 5 can pull the connecting rope 6 of its both sides simultaneously, later connecting rope 6 can drive the shielding plate 8 of its other one end through the effect of fixed pulley 7 and rotate, later shielding plate 8 of both sides can take place to the butt is in the both sides of placing board 5, at this moment not only can fix the concrete that awaits measuring, avoid appearing the phenomenon of skew in the concrete detection process, and under the effect of both sides shielding plate 8 and placing cavity 2, can make this detection seat 1 be a comparatively confined space, avoid waiting to detect the concrete and receive the too big phenomenon that leads to its rubble to jump, the security is high, be favorable to afterwards the quality detection of pressure sensor 9 to the concrete.
As shown in fig. 2 to 4, the left and right sides of the pressure sensor 9 are fixedly connected with a limit frame 10; the inside of the limit frame 10 is connected with symmetrically arranged protective film plates 11 in a sliding manner; the inside of the detection seat 1 is connected with column-shaped rods 12 which are symmetrically arranged in a sliding manner; the surface of each column rod 12 is fixedly connected with a convex block 13; the bottom end of the column type rod 12 is fixedly connected with a compression spring 14; the shape of one side of the protective film plate 11 close to the column-shaped rod 12 is arc-shaped; during operation, when the shielding plates 8 on two sides rotate, the shielding plates 8 can simultaneously move to one side close to the column-shaped rods 12, then the shielding plates 8 can contact with the upper ends of the column-shaped rods 12 and squeeze the column-shaped rods 12, the column-shaped rods 12 move downwards, then the column-shaped rods 12 can simultaneously drive the convex blocks 13 to move, then the convex blocks 13 can contact with the arc-shaped parts of the protective film plates 11 and squeeze the arc-shaped parts, the protective film plates 11 on two sides are mutually close to each other and are paved on the surfaces of the pressure sensors 9 to protect the surfaces of the pressure sensors, the phenomenon that the surfaces of the pressure sensors 9 are scratched due to the fact that concrete is pressed can be avoided, and the service life of the pressure sensors is prolonged.
Wherein the outer surface of the protective film plate 11 is fixedly connected with a cleaning brush 111; the outer surface of the cleaning brush 111 is fixedly connected with brush hair arranged in an array; when the pressure sensor is in operation, when the protective film plate 11 moves, the protective film plate 11 drives the cleaning brush 111 on the surface of the protective film plate to move, and the cleaning brush 111 can clean broken stone on the surface of the pressure sensor 9, so that the pressure sensor is convenient to use.
As shown in fig. 6, the surface of the protective film plate 11 is sleeved with an extension spring 112; a recovery seat 15 is fixedly connected to one side, close to the protective film plate 11, of the inner part of the placement cavity 2; a recovery cavity is formed in the surface of the recovery seat 15; when the pressure sensor 9 is used, after one-time detection is finished, when the tension spring 112 returns from a compression state, the tension spring 112 drives the protective film plate 11 and the cleaning brush 111 to move again, so that the cleaning brush 111 cleans broken stones falling off from the surface of the pressure sensor 9 after quality detection concrete is finished, and then part of broken stones can fall into the recovery seat 15 to be intensively recovered, so that the pressure sensor 9 can be reused conveniently.
Wherein the outer surface of the shielding plate 8 is fixedly connected with a limiting plate 16; the number of the limiting plates 16 is two, and the limiting plates are symmetrically arranged; the surface of the limiting plate 16 is sleeved with a rubber sleeve; when shielding plate 8 supports and presses at pressure sensor 9 surface, limiting plate 16 of shielding plate 8 one side can stand at pressure sensor 9 surface with the column state to conveniently outside drive pressure cylinder carries out quality testing to the concrete afterwards, and can play certain shielding protection effect, avoid rubble to jump to the staff around.
As shown in fig. 5, the inside of the shielding plate 8 is slidably connected with a pressing rod 17; a rotating rod 18 is rotatably connected to the inside of the shielding plate 8; a pressing plate 19 is connected inside the shielding plate 8 and on one side close to the rotating rod 18 in a sliding manner; the pressing rod 17 and the pressing plate 19 are arranged at intervals; a chute matched with the pressing rod 17 and the pressing plate 19 is formed in the shielding plate 8; when the shielding plate 8 is pressed on the concrete surface, the pressing rod 17 in the shielding plate 8 is firstly contacted with the concrete surface, the pressing rod 17 moves to one side close to the rotating rod 18, the rotating rod 18 deflects and presses the pressing plate 19 downwards, the pressing plate 19 presses the concrete, and the protrusions on the higher part of the concrete surface are flattened, so that the concrete can be conveniently detected later.
The surface of the pressing plate 19 is fixedly connected with a conical block 20; the number of the conical blocks 20 is plural, and the conical blocks are equidistantly arranged on the outer surface of the pressing plate 19; the tapered block 20 is provided so that the tapered block 20 breaks up the concrete portion of the protrusion as soon as possible when the platen 19 is brought into contact with the concrete.
Example two
As shown in fig. 7, in comparative example one, another embodiment of the present invention is: the outer surface of the pressing rod 17 is sleeved with a pressing spring 21; a limiting seat matched with the compression spring 21 is arranged in the shielding plate 8; a compression spring 21 is provided to facilitate the return of the pressing bar 17 to the initial position.
When the device works, in an initial state, the shielding plates 8 at two sides of the detection seat 1 are in an open state; when the formed concrete is detected, the concrete to be detected is placed on the surface of the placing plate 5, then the self weight of the placing plate 5 is increased, the self weight of the placing plate is larger than the supporting force of the telescopic rod 3 and the telescopic spring 4, then the telescopic rod 3 drives the placing plate 5 to move downwards, the placing plate 5 simultaneously pulls the connecting ropes 6 on the two sides of the placing plate, then the connecting ropes 6 drive the shielding plates 8 on the other end of the placing plate to rotate under the action of the fixed pulleys 7, the shielding plates 8 on the two sides of the placing plate 5 rotate and are propped against the two sides of the placing plate 5, at the moment, the concrete to be detected can be fixed, the phenomenon of deflection in the concrete detection process is avoided, and the detecting seat 1 can be a relatively closed space under the action of the shielding plates 8 on the two sides and the placing cavity 2, the phenomenon that broken stones of the concrete to be detected fly due to overlarge pressure in the detection process is avoided, the safety is high, and the quality detection of the concrete by the pressure sensor 9 is facilitated; when the shielding plates 8 on two sides rotate, the shielding plates 8 can simultaneously move to one side close to the column-shaped rods 12, then the shielding plates 8 can contact with the upper ends of the column-shaped rods 12 and squeeze the column-shaped rods 12, so that the column-shaped rods 12 move downwards, then the column-shaped rods 12 can simultaneously drive the convex blocks 13 to move, then the convex blocks 13 can contact with the arc-shaped parts of the protective film plates 11 and squeeze the arc-shaped parts, the protective film plates 11 on two sides are mutually close to each other and are paved on the surfaces of the pressure sensors 9 to protect the surfaces of the pressure sensors, and at the moment, the phenomenon that the surfaces of the pressure sensors 9 are scratched due to the fact that concrete is pressed can be avoided, so that the service life of the pressure sensors is prolonged.
When the protective film plate 11 moves, the protective film plate 11 drives the cleaning brush 111 on the surface of the protective film plate to move, and the cleaning brush 111 can clean broken stone on the surface of the pressure sensor 9, so that the use is convenient; after the primary detection is finished, when the tension spring 112 returns from a compressed state, the tension spring 112 drives the protective film plate 11 and the cleaning brush 111 to move again at the same time, so that the cleaning brush 111 cleans broken stones falling off by the quality detection concrete on the surface of the pressure sensor 9, and then part of broken stones fall into the recovery seat 15 to be intensively recovered, so that the pressure sensor 9 can be conveniently reused; when the shielding plate 8 is propped against the outer surface of the pressure sensor 9, the limiting plate 16 on one side of the shielding plate 8 can stand on the outer surface of the pressure sensor 9 in a column state, so that the outside driving of the pressure cylinder to detect the quality of concrete is convenient, a certain shielding protection effect can be achieved, and broken stones are prevented from jumping to the side of a worker; when the shielding plate 8 is pressed against the surface of the concrete, the pressing rod 17 in the shielding plate 8 is firstly contacted with the surface of the concrete, the pressing rod 17 moves to one side close to the rotating rod 18, the rotating rod 18 deflects and presses the pressing plate 19 downwards, so that the pressing plate 19 presses the concrete downwards, and the bulges at the higher part of the surface of the concrete are flattened, thereby facilitating the detection of the concrete afterwards; the tapered block 20 is provided so that the tapered block 20 breaks up the concrete portion of the protrusion as soon as possible when the platen 19 is brought into contact with the concrete.
The front, rear, left, right, up and down are all based on fig. 2 of the drawings in the specification, the face of the device facing the observer is defined as front, the left side of the observer is defined as left, and so on, according to the person viewing angle.
In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A preparation process of concrete with high workability is characterized in that: the method comprises the following steps:
s1, weighing the raw materials of concrete: granite broken stone, cement and granulated blast furnace slag, and then sequentially adding the granite broken stone, river sand, cement and the granulated blast furnace slag into a stirrer;
s2, starting a stirrer to stir the raw materials uniformly, and slowly adding water in the stirring process;
s3, continuously adding an accelerator and an air entraining agent into the raw materials and uniformly stirring;
the accelerator in the step S3 is a material formed by stirring sodium aluminate, sodium carbonate and quicklime; the air entraining agent is a material formed by stirring fatty alcohol polyoxyethylene ether, triterpenoid saponin and sodium alkylbenzenesulfonate; after the concrete preparation is finished, the cohesiveness of the concrete needs to be detected by a detection seat (1);
the inside of the detection seat (1) is fixedly connected with a placement cavity (2); the inside of the placing cavity (2) is fixedly connected with a telescopic rod (3); the outer surface of the telescopic rod (3) is sleeved with a telescopic spring (4); a placing plate (5) is fixedly arranged on the upper end surface of the telescopic rod (3); connecting ropes (6) are fixedly arranged on the left side and the right side of the placing plate (5); the inside of the detection seat (1) is rotatably connected with a fixed pulley (7); the outer surface of the detection seat (1) is rotationally connected with shielding plates (8) which are symmetrically arranged; the shape of the shielding plate (8) is L-shaped, and a rotating shaft matched with the shielding plate (8) is arranged on the surface of the detection seat (1); one side of the connecting rope (6) far away from the placing plate (5) is fixedly connected with the outer surface of the shielding plate (8) through the outer surface of the fixed pulley (7); the surface of the placing plate (5) is fixedly connected with a pressure sensor (9);
limiting frames (10) are fixedly connected to the left side and the right side of the pressure sensor (9); the inside of the limit frame (10) is connected with symmetrically arranged protective film plates (11) in a sliding manner; the inside of the detection seat (1) is connected with column-shaped rods (12) which are symmetrically arranged in a sliding manner; the surface of each column-shaped rod (12) is fixedly connected with a convex block (13); the bottom end of the column-shaped rod (12) is fixedly connected with a compression spring (14); the shape of one side of the protective film plate (11) close to the column-shaped rod (12) is arc-shaped.
2. A process for preparing high workability concrete as claimed in claim 1, wherein: the outer surface of the protective film plate (11) is fixedly connected with a cleaning brush (111); the outer surface of the cleaning brush (111) is fixedly connected with brush hair which is arranged in an array.
3. A process for preparing high workability concrete as claimed in claim 1, wherein: the surface of the protective film plate (11) is sleeved with an extension spring (112); a recovery seat (15) is fixedly connected to one side, close to the protective film plate (11), of the inner part of the placement cavity (2); the surface of the recovery seat (15) is provided with a recovery cavity.
4. A process for preparing high workability concrete as claimed in claim 1, wherein: the outer surface of the shielding plate (8) is fixedly connected with a limiting plate (16); the number of the limiting plates (16) is two, and the limiting plates are symmetrically arranged; the surface of the limiting plate (16) is sleeved with a rubber sleeve.
5. The process for preparing high workability concrete as claimed in claim 4, wherein: the inside of the shielding plate (8) is connected with a pressing rod (17) in a sliding manner; a rotating rod (18) is rotatably connected inside the shielding plate (8); a pressing plate (19) is connected inside the shielding plate (8) and on one side close to the rotating rod (18) in a sliding manner; the pressing rod (17) and the pressing plate (19) are arranged at intervals; the inside of shielding plate (8) is offered and is supported the spout of depression bar (17) and gland plate (19) looks adaptation.
6. The process for preparing high workability concrete as claimed in claim 5, wherein: the surface of the pressing plate (19) is fixedly connected with a conical block (20); the number of the conical blocks (20) is multiple, and the conical blocks are equidistantly arranged on the outer surface of the pressing plate (19).
7. The process for preparing high workability concrete as claimed in claim 5, wherein: the outer surface of the pressing rod (17) is sleeved with a pressing spring (21); the inside of shielding plate (8) is provided with the spacing seat with sticiss spring (21) looks adaptation.
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| CN115107165B true CN115107165B (en) | 2024-02-23 |
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| CN113979685A (en) * | 2021-10-12 | 2022-01-28 | 广州大学 | High-temperature-resistant and good-workability concrete and preparation method thereof |
| CN114262192A (en) * | 2021-12-31 | 2022-04-01 | 杭州华杰商品混凝土有限公司 | High-workability concrete for tunnel and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108507942A (en) * | 2018-06-22 | 2018-09-07 | 长安大学 | A kind of device and method of test pitch cohesive strength and adhesion strength |
| CN209542412U (en) * | 2019-02-26 | 2019-10-25 | 淮阴工学院 | A kind of component detecting hard member and ground contact surface cohesive strength |
| CN213875387U (en) * | 2020-07-30 | 2021-08-03 | 山西工程科技职业大学 | Emulsified asphalt slurry mixture cohesion force measuring equipment |
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