CN113109551B - Concrete slump expansion testing device - Google Patents
Concrete slump expansion testing device Download PDFInfo
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- CN113109551B CN113109551B CN202110337451.4A CN202110337451A CN113109551B CN 113109551 B CN113109551 B CN 113109551B CN 202110337451 A CN202110337451 A CN 202110337451A CN 113109551 B CN113109551 B CN 113109551B
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- transparent plate
- glass plate
- plate
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- concrete
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
- G01B5/06—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness
- G01B5/061—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness height gauges
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
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- 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
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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
Abstract
The invention discloses a concrete slump expansion testing device which comprises a first transparent plate, a second transparent plate, a base, a vertical ruler, a sliding plate and a light guide pipe, wherein the first transparent plate and the second transparent plate are fixed on the base, honeycomb plates are arranged at the bottoms of the first transparent plate and the second transparent plate, a plurality of light through holes penetrating through the upper end face and the lower end face of the honeycomb plates are formed in the honeycomb plates, two ends of the light guide pipe are inserted into the light through holes of the two honeycomb plates, the vertical ruler is arranged above the first transparent plate and is connected with the sliding plate in a sliding mode, and the sliding plate is parallel to a horizontal plane. The invention provides a concrete slump expansion test device which is convenient for measuring slump and diffusability.
Description
Technical Field
The invention relates to the technical field of concrete testing, in particular to a concrete slump expansion testing device.
Background
Workability of concrete means whether concrete is easy to be operated in construction and is uniformly dense, and is a very comprehensive property including fluidity, cohesiveness and water retention. At present, the fluidity of concrete is usually detected through slump tests, and the cohesiveness and the water retention are judged by assisting visual experience. In the test, the concrete installation test step is carried out in a slump cylinder, after the concrete installation test step is carried out, slump is lifted, the slump is represented by measuring the height difference of the highest point of the concrete before and after the test by using a ruler, the expansion degree is represented by measuring the diameter of the concrete, but the middle part of the concrete is raised upwards in the test, so that the diameter of the concrete is not easy to measure.
Disclosure of Invention
Aiming at the prior art, the invention aims to provide a concrete slump expansion testing device which is convenient for measuring slump and diffusability.
The technical scheme of the invention is realized as follows:
the utility model provides a concrete slump extension testing arrangement, includes first transparent plate, second transparent plate, base, vertical chi, slide and light pipe, first transparent plate and second transparent plate are fixed on the base, first transparent plate and second transparent plate bottom are equipped with the honeycomb panel, the honeycomb panel is equipped with the light passing hole that a plurality of runs through its up and down terminal surface, the both ends of light pipe are pegged graft in the light passing hole of two honeycomb panels, first transparent plate top is equipped with vertical chi, vertical chi sliding connection has the slide, the slide is parallel with the horizontal plane.
Further, the light pipe is a non-light-transmitting metal pipe, a reflective coating is arranged in the light pipe, and the diameter of the light pipe is 0.1-1 mm.
Further, a third transparent plate is arranged above the second transparent plate, and the third transparent plate is provided with a plurality of scales formed by concentric circles.
Further, the upper portion of the first transparent plate is provided with an illuminating lamp.
Further, the illuminating lamp is a parallel light source, the base is provided with a vertical shaft, the vertical shaft is provided with a rotating sleeve, and the parallel light source is fixed on the sleeve through a connecting rod.
Further, the parallel light source is provided with a brightness adjusting switch, and the second transparent plate is a pressure-applied color-changing glass plate.
Further, the pressure-applied color-changing glass plate comprises a first glass plate, a second glass plate, a flexible sealing element and an elastic element, wherein the first glass plate is arranged below the second glass plate, the periphery of the first glass plate is connected with the second glass plate through the flexible sealing element, a sealing cavity is formed by the first glass plate, the second glass plate and the flexible sealing element in a surrounding mode, semitransparent liquid is arranged in the sealing cavity, the elastic element is arranged between the first glass plate and the second glass plate, and two ends of the elastic element are connected with the first glass plate and the second glass plate respectively.
Further, the elastic element is a strip-shaped elastic piece with a C-shaped cross section, and the strip-shaped elastic piece is connected to the periphery of the first glass plate and the periphery of the second glass plate.
Further, the second glass plate is provided with a sliding rod around, the sliding rod is in sliding connection with the base, the sliding rod is provided with a rack, the gear is meshed with the gear, and the gears positioned on two sides of the second glass plate are connected with each other through a connecting shaft.
Further, the vertical ruler is provided with a sliding groove, the sliding plate is fixed on the sliding sleeve, and the sliding sleeve slides along the sliding groove.
Further, the inner wall of the light passing hole is coated with a reflective coating.
The invention has the beneficial effects that: because the bottom at first transparent plate is provided with the honeycomb panel, the light path that the light passing hole of honeycomb panel makes first transparent plate lower part separates into a plurality of mutually independent passageway, the bottom and the light pipe intercommunication of light passing hole, light passes from the top of first transparent plate and gets into the light passing hole to follow the light pipe and jet out from the second transparent plate, the light of the regional unable entering of first transparent plate covered by concrete or reduce and get into the light pipe for the luminance of the regional difference in top of second transparent plate forms the dark region the same with concrete bottom profile. The honeycomb plate below the second transparent plate also divides the light path at the lower part of the second transparent plate into a plurality of mutually independent channels, so that the mutual influence of light rays at different parts is avoided or weakened. The diameter of the concrete can be measured by measuring the diameter of the dark area of the second transparent door plate, the measuring process is not influenced by the arch of the middle part of the concrete, and the operation is convenient. The vertical ruler is arranged above the first transparent plate and is connected with the sliding plate in a sliding mode, the sliding plate is parallel to the horizontal plane, the sliding plate is enabled to be flush with the top of concrete through upper and lower sliding, the height of the concrete can be measured, and therefore slump of the concrete is measured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only preferred embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic partial cross-sectional view of a concrete slump extension test apparatus according to the present invention;
FIG. 2 is a top view of the honeycomb panel of the present invention;
FIG. 3 is a top view of a third transparent plate of the present invention;
fig. 4 is a cross-sectional view of a second transparent plate of the present invention;
in the figure, 1 first transparent plate, 2 second transparent plate, 3 base, 4 vertical ruler, 5 slide, 6 light pipe, 7 honeycomb panel, 8 light hole, 11 reflective coating, 12 third transparent plate, 13 scale, 14 light, 15 vertical axle, 16 sleeve, 17 brightness control switch, 18 first glass plate, 19 second glass plate, 20 flexible sealing piece, 21 elastic element, 22 sealed chamber, 25 spout, 26 sliding sleeve.
Detailed Description
For a better understanding of the technical content of the present invention, specific examples are provided below and the present invention is further described with reference to the accompanying drawings.
Referring to fig. 1-4, a concrete slump expansion testing device comprises a first transparent plate 1, a second transparent plate 2, a base 3, a vertical ruler 4, a sliding plate 5 and a light guide tube 6, wherein the first transparent plate 1 and the second transparent plate 2 are fixed on the base 3, honeycomb plates 7 are arranged at the bottoms of the first transparent plate 1 and the second transparent plate 2, the honeycomb plates 7 are provided with a plurality of light passing holes 8 penetrating through the upper end face and the lower end face of the honeycomb plates, two ends of the light guide tube 6 are inserted into the light passing holes 8 of the two honeycomb plates 7, the vertical ruler 4 is arranged above the first transparent plate 1, the vertical ruler 4 is connected with the sliding plate 5 in a sliding mode, and the sliding plate 5 is parallel to a horizontal plane. The first transparent plate 1 and the second transparent plate 2 are fixed on the base 3, the slump cylinder is buckled on the first transparent plate 1, and concrete is filled into the slump cylinder according to the test steps. After the concrete is filled, the first transparent plate 1 is cleaned, then the slump cylinder is vertically pulled upwards, and the concrete covers part of the local first transparent plate 1. Because the bottom of first transparent plate 1 is provided with honeycomb plate 7, the light path of the light passing hole 8 of honeycomb plate 7 makes the light path of first transparent plate 1 lower part separate into a plurality of mutually independent passageway, the bottom and the light pipe 6 intercommunication of light passing hole 8, light passes from the top of first transparent plate 1 and gets into light passing hole 8 to follow light pipe 6 and follow second transparent plate 2 and shoot out, the light of the regional unable entering of first transparent plate 1 of being covered by concrete or reduce and get into light pipe 6 for the luminance of the different regional difference in top of second transparent plate 2 forms the dark region the same with concrete bottom profile. The honeycomb plate 7 below the second transparent plate 2 also divides the light path of the lower part into a plurality of mutually independent channels, so that the mutual influence of light rays of different parts is avoided or weakened. The diameter of the concrete can be measured by measuring the diameter of the dark area of the second transparent door plate, the measuring process is not influenced by the arch of the middle part of the concrete, and the operation is convenient. The vertical ruler 4 is arranged above the first transparent plate 1, the vertical ruler 4 is connected with the sliding plate 5 in a sliding mode, the sliding plate 5 is parallel to the horizontal plane, the sliding plate 5 is enabled to be parallel to the top of concrete in a vertical sliding mode, the height of the concrete can be measured, and therefore slump of the concrete is measured.
Specifically, the light pipe 6 is a light-tight metal pipe, a reflective coating 11 is arranged in the light pipe 6, and the diameter of the light pipe 6 is 0.1-1 mm. The opaque metal tube can avoid light leakage in the light pipe 6 and avoid light interaction. The metal tube can play a good role in light-shielding under the condition of small wall thickness. The inner wall of the light pipe 6 is coated with a reflective coating 11, and the light is emitted from the other end after repeated reflection in the light pipe 6. The diameter of the light pipe 6 is 0.1-1 mm, the light pipe 6 can be densely arranged, and the measurement accuracy is improved.
Specifically, a third transparent plate 12 is disposed above the second transparent plate 2, and the third transparent plate 12 is provided with a plurality of scales 13 formed by concentric circles. When the slump can is placed on the first transparent plate 1, a dark area conforming to the outline of the bottom of the second transparent plate 2 is formed, and the third transparent plate 12 can be moved to place the center of the circular scale 13 in the center of the dark area. The slump of the concrete is expanded after the slump cylinder is taken away, the bottom area of the concrete is increased, the outline of the dark area of the second transparent plate 2 is increased, the diameter of the dark area is measured by using a plurality of scales 13 formed by concentric circles, the expansion condition of the concrete can be obtained, the circle center of the dark area is conveniently found, and the measurement is accurate and convenient.
Specifically, the upper portion of the first transparent plate 1 is provided with an illumination lamp 14. The light pipe 6, which is not shielded by the concrete, enters a lot of light so that the dark and bright areas of the second transparent plate 2 are obvious, facilitating the measurement.
Optionally, the illuminating lamp 14 is a parallel light source, optionally, the base 3 is provided with a vertical shaft 15, the vertical shaft 15 is provided with a rotating sleeve 16, and the parallel light source is fixed on the sleeve 16 through a connecting rod. The light rays of the illumination lamp 14 are transmitted in parallel, so that the light rays vertically enter the light guide tube 6, and the concrete is prevented from forming an inclined shadow on the first transparent plate 1. When the parallel light source is not used, the parallel light source is moved away by the rotating connecting rod, so that concrete is conveniently filled in the slump cylinder.
Specifically, the parallel light source is provided with a brightness adjusting switch 17, and the second transparent plate 2 is a pressure-applied color-changing glass plate. The brightness of the parallel light source is controlled by a brightness adjusting switch 17, and is adjusted according to the brightness of the environment. The second transparent plate 2 is a pressure-applied color-changing glass plate, the light transmittance of the second transparent plate 2 is adjusted by applying pressure, and when the brightness of the second transparent plate is overlarge, the light transmittance of the second transparent plate is adjusted to be low, so that the observation and measurement are facilitated. The force is applied to adjust, and the operation is convenient.
Specifically, the pressure-applied color-changing glass plate comprises a first glass plate 18, a second glass plate 19, a flexible sealing element 20 and an elastic element 21, wherein the first glass plate 18 is arranged below the second glass plate 19, the periphery of the first glass plate 18 is connected with the second glass plate 19 through the flexible sealing element 20, a sealing cavity 22 is formed by enclosing the first glass plate 18, the second glass plate 19 and the flexible sealing element 20, semitransparent liquid is arranged in the sealing cavity 22, the elastic element 21 is arranged between the first glass plate 18 and the second glass plate 19, and two ends of the elastic element 21 are respectively connected with the first glass plate 18 and the second glass plate 19. The elastic element 21 is stretched to open the first glass and the second glass in a natural state, so that the distance between the first glass and the second glass is increased, and the translucent liquid is filled in the sealing cavity 22, so that the thickness of the translucent liquid is larger when the distance between the first glass plate 18 and the second glass plate 19 is large, and the light transmittance is reduced. When the measurement is carried out, the action of the elastic element 21 can be overcome by pressing the second glass plate 19, the first glass plate 18 and the second glass plate 19 are mutually close, the distance between the first glass plate 18 and the second glass plate 19 is reduced, and the glass component is gradually changed from the gray semitransparent state to the clear transparent state, so that the light transmittance is improved, and the detection is convenient. The translucent liquid in the compressed sealed cavity 22 flows out into the flexible seal 20 to bulge around.
Specifically, the elastic element 21 is a strip-shaped elastic element with a C-shaped cross section, and the strip-shaped elastic element is connected around the first glass plate 18 and the second glass plate 19. The strip-shaped elastic member deforms around after being forced, and space is made for the first glass plate 18 and the second glass plate 19 to approach each other. The four strip-shaped elastic members are identical, and when the second glass plate 19 is pressed, the second glass plate 19 approaches the first glass plate 18 in parallel.
Specifically, the vertical ruler 4 is provided with a chute 25, the sliding plate 5 is fixed on a sliding sleeve 26, the sliding sleeve 26 slides along the chute 25, and the inner wall of the light-transmitting hole 8 is coated with a reflective coating 11. The sliding sleeve 26 slides up and down along the vertical runner 25 to facilitate the measurement of the slump height of the concrete when the slide 5 is aligned with the top of the concrete. The inner wall of the light-passing hole 8 is also provided with a reflective coating 11, and the light in the light-passing hole 8 is also reflected into the light pipe 6.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (9)
1. The utility model provides a concrete slump extension testing arrangement, its characterized in that includes first transparent plate, second transparent plate, base, vertical chi, slide and a plurality of light pipe, first transparent plate and second transparent plate are fixed on the base, first transparent plate and second transparent plate bottom are equipped with the honeycomb panel, the honeycomb panel is equipped with the light through hole of a plurality of through its up and down terminal surfaces, the both ends of a plurality of light pipes are pegged graft in the light through hole of two honeycomb panels, be equipped with above the first transparent plate vertical chi, vertical chi sliding connection has the slide, the slide is parallel with the horizontal plane, third transparent plate has been placed above the second transparent plate, the third transparent plate is equipped with a plurality of scale that constitutes by the concentric circles, detains slump section of thick bamboo on first transparent plate to according to test step to the inside slump section thick bamboo, the light of first transparent plate region that is covered by concrete can't get into or reduce and get into the light pipe for the different regional different brightness of top of second transparent plate are the same with the regional bottom of concrete.
2. The concrete slump extension test device according to claim 1, wherein the light pipe is an opaque metal pipe, a reflective coating is arranged in the light pipe, and the diameter of the light pipe is 0.1-1 mm.
3. The concrete slump extension test apparatus according to claim 1, wherein the upper portion of the first transparent plate is provided with an illumination lamp.
4. A concrete slump extension test apparatus according to claim 3, wherein the illumination lamp is a parallel light source, the base is provided with a vertical shaft, the vertical shaft is provided with a rotating sleeve, and the parallel light source is fixed on the sleeve by a connecting rod.
5. The concrete slump extension test apparatus according to claim 4, wherein the parallel light source is provided with a brightness adjusting switch, and the second transparent plate is a pressure-applied color-changing glass plate.
6. The concrete slump extension test device according to claim 5, wherein the pressure-applying color-changing glass plate comprises a first glass plate, a second glass plate, a flexible sealing element and an elastic element, the first glass plate is arranged below the second glass plate, the periphery of the first glass plate is connected with the second glass plate through the flexible sealing element, a sealing cavity is formed by the first glass plate, the second glass plate and the flexible sealing element in a surrounding mode, semitransparent liquid is arranged in the sealing cavity, the elastic element is arranged between the first glass plate and the second glass plate, and two ends of the elastic element are respectively connected with the first glass plate and the second glass plate.
7. The concrete slump extension test apparatus according to claim 6, wherein the elastic member is a bar-shaped elastic member having a C-shaped cross section, and the bar-shaped elastic member is connected around the first glass plate and the second glass plate.
8. A concrete slump extension test apparatus according to claim 1, wherein the vertical ruler is provided with a chute, the slide plate being secured to a slide sleeve, the slide sleeve sliding along the chute.
9. A concrete slump extension test apparatus according to claim 1, wherein the inner wall of the light passing hole is coated with a reflective coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110337451.4A CN113109551B (en) | 2021-03-30 | 2021-03-30 | Concrete slump expansion testing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110337451.4A CN113109551B (en) | 2021-03-30 | 2021-03-30 | Concrete slump expansion testing device |
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| CN113109551A CN113109551A (en) | 2021-07-13 |
| CN113109551B true CN113109551B (en) | 2023-06-16 |
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