CN113109552A - Concrete workability and uniformity testing device and method - Google Patents
Concrete workability and uniformity testing device and method Download PDFInfo
- Publication number
- CN113109552A CN113109552A CN202110446699.4A CN202110446699A CN113109552A CN 113109552 A CN113109552 A CN 113109552A CN 202110446699 A CN202110446699 A CN 202110446699A CN 113109552 A CN113109552 A CN 113109552A
- Authority
- CN
- China
- Prior art keywords
- concrete
- workability
- testing device
- uniformity
- slump
- 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
- 238000012360 testing method Methods 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 9
- 239000004744 fabric Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 12
- 238000001514 detection method Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000003245 working effect Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000011077 uniformity evaluation Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/38—Concrete; ceramics; glass; bricks
- G01N33/383—Concrete, cement
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
Abstract
The invention discloses a concrete workability and uniformity testing device and method, which comprises a supporting box, wherein a screen is arranged at the top of the supporting box, a rollable sheet is paved on the screen, a workability testing device is arranged on the rollable sheet, a water supply box is arranged on one side of the workability testing device, a uniformity testing device is arranged in the supporting box, the uniformity testing device is positioned below the workability testing device, and a vibration controller is arranged on the supporting box. The invention comprehensively represents the workability and uniformity of the concrete by using the concrete slump and the concrete mortar density deviation, and can better ensure the quality of the concrete in site construction; meanwhile, the concrete subjected to the concrete slump test is directly utilized to carry out the concrete mortar density deviation test, so that raw materials are saved, and the detection speed is accelerated; the device is convenient to use, simple to operate, can improve per capita productivity and has high accuracy.
Description
Technical Field
The invention relates to a concrete testing device and method, in particular to a concrete workability and uniformity testing device and method.
Background
The concrete foundation of the power transmission project has many points, wide surface and large span, generally extends for thousands of kilometers, and needs to span various complex natural conditions such as climate, geology and the like; at present, no available mixing plant is arranged around a plurality of construction sites, so that fresh concrete needs to be transported to the construction sites from a remote place, and the workability and uniformity of the concrete are difficult to ensure. In order to ensure the quality of the concrete for on-site construction, namely good fluidity, segregation resistance and uniformity, testing devices, such as a slump expansion method, a U-shaped instrument and the like, are developed, the testing methods and the devices have various characteristics, the main characteristic result is the concrete fluidity, and for the concrete for power transmission engineering needing long-distance transportation, a great controversial exists only by using a slump testing method to represent whether the concrete can be constructed. When fresh concrete fluidity is met, the concrete may exhibit segregation or poor viscosity between the aggregate and the slurry. Therefore, the uniformity, namely the density deviation of the concrete, is reasonably introduced, the uniformity evaluation index is utilized to help test the density deviation of the concrete, and the quality of the fresh concrete is comprehensively evaluated; on the other hand, in the actual operation process of a construction site, frequent testing of concrete consumes a large amount of manpower and financial resources, and the quality of fresh concrete is easily reduced. On the concrete site construction of the power transmission project, a more reasonable concrete workability and uniformity testing device is not available for a while.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a concrete workability and uniformity testing device and method which are simple to operate, rapid in testing and accurate in characterization result, are convenient to use in various construction occasions, and can quickly detect the workability and uniformity of concrete in field construction.
The technical scheme is as follows: the rolling-up type water supply device comprises a supporting box, wherein a screen is arranged at the top of the supporting box, a rolling-up piece is paved on the screen, a workability testing device is placed on the rolling-up piece, a water supply box is arranged on one side of the workability testing device, a uniformity testing device is arranged in the supporting box and is positioned below the workability testing device, and a vibration controller is arranged on the supporting box.
The workability testing device comprises a slump cone, a water supply tank is arranged on one side of the slump cone, and water stored in the water supply tank is used for cleaning equipment rapidly so as to accelerate the testing speed.
One side of the water supply tank is fixed with a slide rail, the bottom of the slide rail is provided with scale marks, and the slide rail is connected with a level gauge in a sliding way.
The tail end of the level meter is in contact with the slump cone, and the slump value of the level meter can be tested by utilizing the level meter which can freely move up and down.
Homogeneity testing arrangement include the balance, the balance on placed a volumetric cylinder, volumetric cylinder in placed the funnel, the funnel be located slump section of thick bamboo below.
The balance is placed at the bottom of the supporting box.
The support box is provided with a density deviation calculator, the density deviation calculator is connected with the balance, and the density deviation calculator automatically outputs the measurement result of the balance.
The universal wheels are arranged at the bottom of the supporting box, so that the device can be conveniently transported to various construction places.
The inside water pipe that is equipped with of feed water tank, the water pipe bottom is connected with the water pumper.
A concrete workability and uniformity testing method comprises the following steps:
(1) pouring concrete into the slump cone, tamping, and vertically and stably lifting the slump cone;
(2) utilize spirit level that can reciprocate to test its slump value H1；
(3) The coilable skin is folded, the concrete with the tested slump is placed on a screen, a vibration controller is started, and the vibration time is set;
(4) after the volumetric cylinder is filled with concrete, the balance automatically weighs to obtain the weight m1；
(5) Repeating the steps (1) to (4) to obtain a slump value H of twice2、H3Weight m2、m3；
(6) Obtaining the slump value (H) of the concrete1+H2+H3) Per 3, poor density of concrete mortar, i.e.homogeneity, mmax(1,2,3)-mmin(1,2,3)。
Has the advantages that: the invention comprehensively represents the workability and uniformity of the concrete by using the concrete slump and the concrete mortar density deviation, and can better ensure the quality of the concrete in site construction; meanwhile, the concrete subjected to the concrete slump test is directly utilized to carry out the concrete mortar density deviation test, so that raw materials are saved, and the detection speed is accelerated; the device is also provided with universal wheels, so that the transportation on various construction sites can be facilitated, and the matched water supply tank can help to quickly clean equipment, so that the next test on the workability and uniformity of the concrete can be conveniently and quickly carried out; the device is convenient to use, simple to operate, can improve per capita productivity and has high accuracy.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1, the device comprises a workability testing device, a water supply tank component, a uniformity testing device and a supporting platform, wherein the workability testing device, the water supply tank component, the uniformity testing device and the supporting platform are designed integrally. Supporting platform includes supporting box 41, the top of supporting box 41 is equipped with screen cloth 43, but screen cloth 43 upper berth is equipped with rolling sheet 42, but has placed the working property testing arrangement on the rolling sheet 42, one side of working property testing arrangement is equipped with feed water tank 21, the inside homogeneity testing arrangement that is equipped with of supporting box 41, homogeneity testing arrangement is located the working property testing arrangement below, be equipped with vibration controller 44 on the supporting box 41, the supporting box 41 bottom is equipped with universal wheel 45, can be convenient for this device transportation to various construction sites.
The workability testing device comprises a slump cone 11 and a level 12; the water supply tank unit includes a water supply tank 21, a water pipe 22, and a water pump 23. The inside water pipe 22 that is equipped with of feed water tank 21, water pipe 22 bottom are connected with water pumper 23, use the inside quick cleaning equipment of water of storing of feed water tank 21 for test speed. Supply tank 21 one side is equipped with slide rail 13, and slide rail 13 bottom is equipped with the scale mark, and sliding connection has spirit level 12 on slide rail 13, and the end and the slump section of thick bamboo 11 contact of spirit level 12 add sufficient volume fresh concrete, later mentions slump section of thick bamboo 11, utilizes spirit level 12 that can freely move from top to bottom to test its slump, can characterize the workability of concrete.
The uniformity testing device comprises a V-shaped funnel 31, a volumetric cylinder 32, a balance 33 and a density deviation calculator 34. The balance 33 is placed at the bottom of the supporting box 41, the balance 33 is connected with the density deviation calculator 34, the volumetric cylinder 32 is placed on the balance 33, the funnel 31 is placed in the volumetric cylinder 32, and the funnel 31 is arranged below the slump cone 11. The volume of the volumetric cylinder 32 is 1L, so that the concrete with tested slump is enough to be used for a concrete mortar density deviation test.
The screen 43 adopts a 4.75mm square-hole screen and is positioned below the rollable sheet 42, the rollable sheet 42 is folded after the concrete slump is tested, and then the vibration controller 44 is started to help the concrete to be filtered quickly. After the concrete is screened by the vibration controller 44, the volumetric cylinder 32 with 1L is filled, the balance 33 is used for measuring the mass, the density is calculated, the operation is repeated for 3 times, the density deviation calculator 34 automatically records data and automatically outputs the density deviation result of the concrete mortar, and the uniformity of the concrete can be represented.
The testing steps of the device are as follows:
concrete which is just transported to a site by a transport vehicle is sampled for 30L at three random positions, and then the concrete is wetted with a slump cone 11, a rollable sheet 42, a square hole sieve, a V-shaped funnel 31 and a volumetric cylinder 32, but the inner wall of the concrete has no clear water. The method comprises the steps of placing a slump cone 11 on a flattened rollable sheet 42, fixing the rollable sheet 42, pouring concrete into the slump cone 11, tamping, removing concrete scattered around the cone, vertically and stably lifting the slump cone, finishing the lifting process of the slump cone within 5-10 s, and finishing the whole process from starting to load to lifting the slump cone 11 within 150 s. After the slump cone 11 is lifted, the slump value H is tested by using a level 12 which can freely move up and down1. The rollable sheets 42 are retracted, the concrete after slump testing is placed on a 4.75mm square hole sieve, the vibration controller 44 is started, and the fixed vibration time is set to help the concrete to be quickly sieved. After filling the 1L volumetric cylinder 32, the electronic balance automatically weighs to obtain the weight m1. Repeating the same operation twice to obtain slump value H2、H3Weighed weight m2、m3. The slump value of the concrete was (H)1+H2+H3) (iii) the density difference of the concrete mortar is mmax(1,2,3)-mmin(1,2,3)The density deviation calculator 34 automatically outputs the result mmax(1,2,3)-mmin(1,2,3)。
Claims (10)
1. The utility model provides a concrete workability and homogeneity testing arrangement, a serial communication port, including supporting box (41), the top of supporting box (41) is equipped with screen cloth (43), screen cloth (43) upper berth be equipped with and roll up piece (42), can roll up piece (42) on placed the workability testing arrangement, one side of workability testing arrangement is equipped with feed tank (21), supporting box (41) inside be equipped with the homogeneity testing arrangement, the homogeneity testing arrangement be located the workability testing arrangement below, the supporting box on be equipped with vibration controller (44).
2. The concrete workability and uniformity testing apparatus of claim 1, wherein the workability testing apparatus comprises a slump cone (11), and a water supply tank (21) is provided at one side of the slump cone (11).
3. The concrete workability and uniformity testing device according to claim 1 or 2, characterized in that a slide rail (13) is fixed on one side of the water supply tank (21), the bottom of the slide rail (13) is provided with scale marks, and a level (12) is slidably connected on the slide rail (13).
4. A concrete workability and uniformity testing device according to claim 3, characterized in that the end of said level (12) is in contact with the slump cone (11).
5. The concrete workability and uniformity testing device of claim 1, wherein said uniformity testing device comprises a balance (33), said balance (33) having a volumetric cylinder (32) disposed thereon, said volumetric cylinder (32) having a funnel (31) disposed therein, said funnel (31) being disposed below the slump cone (11).
6. A concrete workability and uniformity testing device according to claim 5, characterized in that said balance (33) is placed at the bottom of the supporting box (41).
7. The concrete workability and uniformity testing apparatus according to claim 1 or 6, wherein a density deviation calculator (34) is mounted on the support box (41), and the density deviation calculator (34) is connected to a balance (33).
8. The concrete workability and uniformity testing device of claim 7, characterized in that universal wheels (45) are arranged at the bottom of the supporting box (41).
9. The concrete workability and uniformity testing device according to claim 1, wherein a water pipe (22) is arranged inside the water supply tank (21), and a water pump (23) is connected to the bottom of the water pipe (22).
10. A concrete workability and uniformity testing method is characterized by comprising the following steps:
(1) pouring concrete into the slump cone, tamping, and vertically and stably lifting the slump cone;
(2) utilize spirit level that can reciprocate to test its slump value H1；
(3) The coilable skin is folded, the concrete with the tested slump is placed on a screen, a vibration controller is started, and the vibration time is set;
(4) after the volumetric cylinder is filled with concrete, the balance automatically weighs to obtain the weight m1；
(5) Repeating the steps (1) to (4) to obtain a slump value H of twice2、H3Weight m2、m3；
(6) Obtaining the slump value (H) of the concrete1+H2+H3) And/3, the density difference of the concrete mortar,i.e. uniformity, mmax(1,2,3)-mmin(1,2,3)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110446699.4A CN113109552A (en) | 2021-04-25 | 2021-04-25 | Concrete workability and uniformity testing device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110446699.4A CN113109552A (en) | 2021-04-25 | 2021-04-25 | Concrete workability and uniformity testing device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113109552A true CN113109552A (en) | 2021-07-13 |
Family
ID=76719977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110446699.4A Pending CN113109552A (en) | 2021-04-25 | 2021-04-25 | Concrete workability and uniformity testing device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113109552A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675244A (en) * | 2013-12-03 | 2014-03-26 | 中建商品混凝土有限公司 | Concrete homogeneity testing method |
| CN203587463U (en) * | 2013-12-03 | 2014-05-07 | 中建商品混凝土有限公司 | Device for testing uniformity of concrete |
| CN204855306U (en) * | 2015-08-10 | 2015-12-09 | 葛洲坝集团水泥有限公司 | Even matter nature of concrete and continuity test device that flows |
| CN110865180A (en) * | 2019-12-20 | 2020-03-06 | 东南大学 | Method and device for testing workability of pervious concrete |
| CN112269018A (en) * | 2020-10-15 | 2021-01-26 | 四川兴城港瑞建材有限公司 | Concrete slump detection device and manufacturing and operating method thereof |
| CN112379084A (en) * | 2020-10-12 | 2021-02-19 | 江苏祥瑞工程检测有限公司 | Concrete performance detection method |
-
2021
- 2021-04-25 CN CN202110446699.4A patent/CN113109552A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675244A (en) * | 2013-12-03 | 2014-03-26 | 中建商品混凝土有限公司 | Concrete homogeneity testing method |
| CN203587463U (en) * | 2013-12-03 | 2014-05-07 | 中建商品混凝土有限公司 | Device for testing uniformity of concrete |
| CN204855306U (en) * | 2015-08-10 | 2015-12-09 | 葛洲坝集团水泥有限公司 | Even matter nature of concrete and continuity test device that flows |
| CN110865180A (en) * | 2019-12-20 | 2020-03-06 | 东南大学 | Method and device for testing workability of pervious concrete |
| CN112379084A (en) * | 2020-10-12 | 2021-02-19 | 江苏祥瑞工程检测有限公司 | Concrete performance detection method |
| CN112269018A (en) * | 2020-10-15 | 2021-01-26 | 四川兴城港瑞建材有限公司 | Concrete slump detection device and manufacturing and operating method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102401825B (en) | Integrated slope runoff simulation and monitoring device | |
| CN211478321U (en) | Concrete slump check out test set for construction | |
| CN102359925A (en) | Complete earth pressure balance shield construction soil mass improvement test method | |
| CN104865156A (en) | Device and method for evaluating segregation degree of cement concrete | |
| CN206037923U (en) | Concreted structure roughness measurement device | |
| CN203053818U (en) | Measurement instrument for working property of self-compacting concrete | |
| CN112014475A (en) | Method for detecting compaction quality of coarse-particle soil roadbed filler based on shear wave velocity | |
| CN109085326A (en) | A kind of pressure slip pipe instrument device and evaluation method detecting concrete pumpability | |
| CN112269018A (en) | Concrete slump detection device and manufacturing and operating method thereof | |
| CN203587463U (en) | Device for testing uniformity of concrete | |
| CN205263090U (en) | Steel pipe concrete bow member fills analog system | |
| CN113109552A (en) | Concrete workability and uniformity testing device and method | |
| CN107916610B (en) | Steady layer of water controls ruler and the application of the control ruler in steady layer of water construction technology | |
| CN108303524A (en) | A kind of test method of underwater 3D printing building mortar performance | |
| CN201408188Y (en) | Moving platform of tests for testing concrete slump | |
| CN204613058U (en) | A kind of cement concrete segregation degree evaluation device | |
| CN103645105A (en) | Apparatus and testing method used for accurate testing of corrosion rate of steel bars along length directions | |
| CN110794118A (en) | Soil erosion and water loss simulation device | |
| CN212254965U (en) | Device for calibrating sand sample density by adopting sand rain method | |
| CN107449828A (en) | A kind of rock-fill concrete structure space compactness inspection method and rock-fill concrete structure space compactness evaluation method | |
| CN213482244U (en) | Concrete slump detection device | |
| CN111912741A (en) | Device for calibrating sand sample density by adopting sand rain method | |
| CN211978897U (en) | Portable soil erosion and water loss analogue means | |
| CN211652391U (en) | On-spot direct shear test device that can dismantle of soil stone mixture | |
| CN107449827A (en) | A kind of rock-fill concrete structural level quality determining method and rock-fill concrete structural level quality evaluating method |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210713 |