CN111665344A - Novel slump and expansion measuring device and measuring method - Google Patents
Novel slump and expansion measuring device and measuring method Download PDFInfo
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- CN111665344A CN111665344A CN202010655368.7A CN202010655368A CN111665344A CN 111665344 A CN111665344 A CN 111665344A CN 202010655368 A CN202010655368 A CN 202010655368A CN 111665344 A CN111665344 A CN 111665344A
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000005259 measurement Methods 0.000 claims abstract description 61
- 239000002002 slurry Substances 0.000 claims abstract description 40
- 238000007572 expansion measurement Methods 0.000 claims description 23
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000004568 cement Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000011268 mixed slurry Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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
Abstract
The invention discloses a novel slump and expansion measuring device and a measuring method, the device comprises a first expansion measuring tower ruler, two slump measuring scales, two bases and a slump auxiliary rod, wherein one ends of the two slump measuring scales are respectively connected with two bottom plates, the other ends of the two slump measuring scales are respectively connected with two ends of the first expansion measuring tower ruler, the slump measuring scales are vertical, and the first expansion measuring tower ruler is horizontal. The slump and the slump can be accurately measured by the aid of the slump measuring tower ruler and the slump measuring ruler, operation is simple, measurement can be independently completed by a single person, accurate measurement can be realized for slurries with different slumps and spreads, the measuring range is wide, and due to the telescopic structure of the slump and slump measuring tower ruler, equipment can be conveniently stored and moved, and a new scheme is provided for slump and slump measurement.
Description
Technical Field
The invention belongs to the technical field of concrete parameter measurement, and particularly relates to a novel slump and expansion measuring device and a measuring method.
Background
Slump refers to the workability of concrete, including the water retention, fluidity and cohesiveness of a mixture, and slump and expansion are important indexes for measuring the workability and judging whether construction can be normally carried out. Factors influencing the index include water consumption per unit volume, water-cement ratio, sand rate, cement variety, aggregate condition, time, temperature, additive and the like. Taking slurry filled in a mine underground goaf as an example, if the slump is too large, the expansion degree is correspondingly increased, the slurry fluidity is increased, the cohesiveness and the water retention are reduced, the slurry is separated and layered, the strength of a filling body is reduced, the strength difference is generated at the bottom and the top, and conditions cannot be provided for subsequent construction; if the slump is too small, the expansion degree is low, pipe blockage is easy to occur in the process of transporting slurry from the ground surface to the underground, so that the construction progress is delayed, and even if the pipe blockage phenomenon does not occur in the transportation process, the slurry can be filled into the underground, and the filling body cannot be distributed in a goaf because the slump and the expansion degree are too small. Therefore, the slump and the expansion degree are measured in the processes of building construction, bridge design, mine underground filling and tunnel supporting, and the normal operation of construction is ensured.
Standard methods for traditional slump and spread testing: the diameter of an upper opening is 100mm, the diameter of a lower opening is 200mm, the inside of a slump bucket with the height of 300mm is wiped by a wet towel, a smooth straight plastic plate with the diameter of 1000mm is placed on the ground, the center of the lower opening of the slump bucket is aligned to the center of the plastic plate, mixed slurry is poured into the slump bucket in three times, after pouring is finished each time, a vibrating rod is used for vibrating from the edge of the inner wall to the center in a spiral mode, slurry overflowing from the top end is leveled, the slump bucket is lifted vertically and slowly, sludges generate a slump phenomenon due to self weight, the distance of subtracting the highest point of the slump slurry by 300mm is the slump, and the expansion degree is the maximum diameter distance of the slump slurry. The disadvantages are as follows: (1) the slump needs to be assisted by others, and one person cannot operate alone; (2) the traditional slump measuring instrument can only measure concrete with smaller slump, and slurry with the slump reaching about 25 cannot be accurately measured; (3) instruments for measuring the expansion degree are not provided, the measurement result is basically obtained through formula estimation or approximate measurement, and the accuracy of the measurement result is not enough; (4) the measurement speed is slow, and the period for completing measurement of the ratio slump is long.
The present invention has been made in view of this situation.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art, and provide a novel slump and expansion measuring device and a measuring method, in order to solve the technical problems, the basic concept of the technical scheme adopted by the invention is as follows:
a novel slump and expansion measuring device comprises a first expansion measuring tower ruler, two slump measuring scales, two bases and a slump auxiliary rod, wherein one ends of the two slump measuring scales are respectively connected with two bottom plates, the other ends of the two slump measuring scales are respectively connected with two ends of the first expansion measuring tower ruler, the slump measuring scales are vertical, and the first expansion measuring tower ruler is horizontal; the slump auxiliary rod is connected with the slump measuring scale in a sliding manner and is in a horizontal shape, and scales which are sequentially increased from top to bottom are arranged on the slump measuring scale;
first expansion measurement box staff includes positive chi, anti chi, and positive chi cover is established outside anti chi and the two sliding connection, and the free end of positive chi and anti chi is connected with two slump dipperstick respectively, be carved with the scale that increases from a left side right side in proper order on the positive chi, be carved with the scale that increases from a right side left side in proper order on the anti chi, and the originated scale of anti chi is the end scale of positive chi, and the intersection of positive chi and anti chi forms the reading port.
Further, still include locating component, locating component includes rings, square slip knot, location line, location awl, and rings, location awl are connected respectively at location line both ends, and square slip is detained and is established ties on the location line, rings and first extension measurement tower chi sliding connection, square slip knot and slump auxiliary rod sliding connection.
Further, be equipped with the recess on the bottom face of first divergence measurement sopwith staff, the montant is installed at the top of recess, and the montant is two, and these two montants set up both ends about first divergence measurement sopwith staff respectively, are connected with the horizontal pole that can stretch out and draw back between two montants, and rings cover is established on the horizontal pole and with it sliding connection.
Furthermore, the slump auxiliary rod is a second expansion measuring tower ruler with scales which are sequentially increased from left to right, one end of the second expansion measuring tower ruler is connected with the slump measuring ruler in a sliding mode through a moving frame, and butterfly screws used for locking the position of the moving frame are arranged on the moving frame; the second extension measurement tower ruler comprises a first section and a second section, the first section is sleeved outside the second section and is in sliding connection with the second section, the free end of the first section is connected with the movable frame, the top surface of the first section is provided with a wire placing groove used for winding and accommodating a positioning wire, the second section is provided with an opening which is communicated up and down, a square long rod is arranged in the opening, two ends of the direction long rod are respectively connected with the thin sheet of the second section, and the square sliding buckle is sleeved on the square long rod in a sliding mode.
Further, still include the support frame subassembly, the support frame subassembly includes upper portion support, side support, supports down tube, fixed cover, upper portion support and slump auxiliary rod fixed connection, and the two is parallel, the side support is articulated with the upper portion support through dismantling rotatory nail, the upper portion support all articulates with the side support has a support down tube, and two free ends that support the down tube are articulated, fixed cover slip cover is established on supporting the down tube, and fixed cover slides to the articulated department that two support the down tube and makes two unable rotations of support down tube.
Further, the bottom plate is square, and two slump dipperstick all are connected with the avris middle part of square bottom plate, and the interior limit of slump dipperstick aligns with the side of square bottom plate.
Further, the base includes bottom plate, universal wheel, and the universal wheel is a plurality of, and the universal wheel passes through the link to be connected with the bottom plate, and the center of universal wheel is in same horizontal plane with the upper surface of bottom plate, and the upper surface of bottom plate is 10mm with the high distance on ground.
Further, the bottom plate comprises first order bottom plate, second order bottom plate, third order bottom plate, and first order bottom plate, second order bottom plate, third order bottom plate link up in proper order, and thickness increases in proper order, and the avris at first order bottom plate is connected to the slump dipperstick.
Furthermore, the scale of the front ruler is 0-500mm, the scale of the reverse ruler is 500-1000mm, the scale of the slump measuring ruler is 0-290mm, the scale of the second expansion measuring tower ruler is 0-500mm, and the scale is accurate to 0.5 mm.
Further, the thickness of the first order bottom plate is 3mm, the thickness of the second order bottom plate is 6mm, and the thickness of the third order bottom plate is 9 mm.
A novel slump and expansion measuring method comprises the following steps:
step 1, after the preparation of slurry in a slump bucket is finished, the slump bucket is lifted vertically and slowly, and after the slurry is collapsed, a measuring device is moved to the position of the slurry;
step 4, moving the slump measuring ruler on the other side, shrinking the front ruler and the reverse ruler, and reading data of the reading port after the slump measuring ruler on the other side is aligned with the side of the slurry;
and 5, sliding the lifting ring and the square sliding buckle to enable the positioning cone to be vertical, keeping the cone tip of the positioning cone aligned with the side of the slurry, and reading the scale of the positioning line on the second expansion measurement tower ruler.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
The slump and the slump can be accurately measured by the aid of the slump measuring tower ruler and the slump measuring ruler, operation is simple, measurement can be independently completed by a single person, accurate measurement can be realized for slurries with different slumps and spreads, the measuring range is wide, and due to the telescopic structure of the slump and slump measuring tower ruler, equipment can be conveniently stored and moved, and a new scheme is provided for slump and slump measurement.
The invention has the advantages of simple structure, convenient operation, accurate measurement, safety, reliability, wide application range, easy storage, stronger practicability and easy popularization and application in the field of concrete slump and expansion measurement.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention to its proper form. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic view of an assembly structure according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a first extension measurement tower ruler according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a groove structure of a first extensional measurement tower ruler in accordance with an embodiment of the present invention;
FIG. 4 is a schematic diagram of a slump measurement scale according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a second extension measurement tower ruler according to an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of a second section of a second extensional measurement tower ruler in accordance with an embodiment of the present invention;
FIG. 7 is a schematic view of a positioning assembly according to an embodiment of the present invention;
FIG. 8 is a schematic view of a support bracket assembly according to an embodiment of the present invention;
fig. 9 is a schematic view of a base structure according to an embodiment of the invention.
In the figure: 1-a first extension measurement tower ruler; 2-a second extension measurement tower ruler; 3-slump measuring scale; 4-a base; 5-a positioning assembly; 6-a support frame assembly; 7-arranging a wire slot; 8-slurry; 11-a positive ruler; 12-reverse ruler; 13-a reading port; 14-an installation port; 15-a groove; 16-a vertical rod; 17-a cross bar; 21-first stage; 22-a second section; 23-a square long rod; 24-a flake; 31-a connection port; 32-moving the frame; 33-butterfly screws; 41-universal wheel; 42-a connecting frame; 43-a first order baseplate; 44-a second order backplane; 45-third order backplane; 51-a hoisting ring; 52-square sliding button; 53-alignment lines; 54-positioning cone; 55-through holes; 61-upper support; 62-side support; 63-supporting the diagonal rods; 64-fixing the sleeve; 65-Detachable swivel pins.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
Example one
As shown in fig. 1 to 9, the novel slump and expansion measuring device of the present embodiment includes a first expansion measuring tower ruler, two slump measuring scales, two bases, and a slump auxiliary rod, wherein one ends of the two slump measuring scales are respectively connected to the two bottom plates, the other ends of the two slump measuring scales are respectively connected to two ends of the first expansion measuring tower ruler, the slump measuring scales are vertical, the first expansion measuring tower ruler is horizontal, and a 20866is formed, as shown in fig. 1, preferably, the tower ruler in the present embodiment is made of stainless steel, the installation port of the first expansion measuring tower ruler corresponds to the connection port of the slump measuring scale, and the base is connected to the slump measuring scale in a welding manner through screws. The slump auxiliary rod is connected with the slump measuring scale in a sliding mode and is horizontal, scales which are sequentially increased from top to bottom are arranged on the slump measuring scale, the scales of the slump measuring scale are 0-290mm in the embodiment, and the scales can be set according to actual requirements. When measuring the slump, slide slump auxiliary rod, make its peak parallel and level with the ground paste, read the scale of slump dipperstick and can obtain accurate slump data.
The first extension measuring tower ruler comprises a front ruler and a back ruler, wherein the front ruler is sleeved outside the back ruler and is in sliding connection with the back ruler, the free ends of the front ruler and the back ruler are respectively connected with the two slump measuring rulers, and the sleeved structure can enable the back ruler to be stored in the front ruler, so that the space occupation is reduced, and the storage is facilitated. The scale which is sequentially increased from left to right is carved on the positive ruler, the scale which is sequentially increased from right to left is carved on the negative ruler, the initial scale of the negative ruler is the end scale of the positive ruler, a reading port is formed at the intersection of the positive ruler and the negative ruler, and the reading port is applied during measurement. In this example, the scale of the positive scale is 0-500mm, and the scale of the negative scale is 500-1000mm, as shown in FIG. 2, and the reading port will only read values when the expansion degree is greater than 500 mm.
When the expansion degree is less than 500mm, in order to realize accurate measurement, the device also comprises a positioning assembly, wherein the positioning assembly comprises a lifting ring, a positioning line and a positioning cone, and two ends of the positioning line are respectively connected with the lifting ring and the positioning cone. Rings and first extension measurement sopwith staff sliding connection are equipped with the recess on the bottom face of first extension measurement sopwith staff, and the montant is installed at the top of recess, and the montant is two, and these two montants set up both ends about first extension measurement sopwith staff respectively, are connected with the horizontal pole between two montants, and the horizontal pole is a telescopic pole to the flexible of the anti-chi of adaptation positive chi is receive and release, and rings cover is established on the horizontal pole and with it sliding connection, sees that figure 3 shows. During measurement, the slump measurement ruler on one side is aligned with the edge of the slurry, the hanging ring is moved to enable the positioning cone to be aligned with the edge of the slurry, and the position of the hanging ring on the first expansion measurement tower ruler is the expansion degree.
In order to simplify the measurement of the expansion degree smaller than 500mm, the slump auxiliary rod is a second expansion degree measurement tower ruler with scales which are sequentially increased from left to right, one end of the second expansion degree measurement tower ruler is in sliding connection with the slump measurement ruler through a movable frame, a butterfly screw for locking the position of the movable frame is arranged on the movable frame, the movable frame can be locked through the butterfly screw, and the slump measurement tower ruler is used for measuring the slump and is shown in figure 4. The second extension measurement sopwith staff includes first section, second section, and first section cover is established outside the second section and is sliding connection with it, the free end of first section is connected with the removal frame, is equipped with the line groove of putting that is used for the winding to accomodate the location line on the top surface of first section, when accomodating, can twine the location line on putting the line groove, conveniently deposits. The second section is provided with an opening which is through up and down, a square long rod is arranged in the opening, two ends of the direction long rod are respectively connected with the thin sheet of the second section, the positioning assembly further comprises a square sliding buckle, the square sliding buckle is connected on the positioning line in series, the square sliding buckle is sleeved on the square long rod in a sliding mode, the square sliding buckle is provided with a through hole which enables the positioning line to pass through, and the positioning line freely penetrates out of the through hole, as shown in the attached figures 5-7. When the measurement is less than 500mm expansion, the measurement can be directly carried out by using the second expansion measurement tower ruler, the positioning line positioning cone is kept vertical by the sliding lifting ring and the square sliding buckle, the top of the positioning cone is aligned with the slurry edge, and the positioning line can freely shuttle through the through hole, so that the positioning line positioning cone can be kept vertical by the through hole, and the second expansion measurement tower ruler can be directly read. The lifting ring is moved to enable the lifting ring to be basically vertical to the square sliding buckle, so that the length of the positioning line is basically unchanged no matter which height the second extension measuring tower ruler moves up and down, the height of the positioning cone is basically unchanged, and the fixed-length positioning line can meet the requirements of measurement in various ranges. In this case, the second extension degree measurement sliding staff and the first extension degree measurement sliding staff are arranged on the same plane and in parallel, so that the occupied space can be reduced when the second extension degree measurement sliding staff and the first extension degree measurement sliding staff are accommodated. The lengths of the second extension measuring tower ruler, the first section and the second section can be set according to requirements, and the scales of the second extension measuring tower ruler are 0-500mm, the length of the first section is 250mm, and the length of the second section is 250 mm. The scales related to the embodiment are all accurate to 0.5mm, and the corresponding scale lines comprise centimeter lines, 5 millimeter lines, 1 millimeter line and 0.5 millimeter line.
The second expansion measurement tower ruler is unilaterally supported by a slump measurement ruler, in order to guarantee the support stability of the second expansion measurement tower ruler, the device also comprises a support frame assembly, the support frame assembly comprises an upper support, a side support, a support diagonal rod and a fixing sleeve, the upper support is fixedly connected with the second expansion measurement tower ruler and is parallel to the second expansion measurement tower ruler, the left end of the upper support is arranged at the joint of the second expansion measurement tower ruler and the slump measurement ruler, and angular points are aligned, which is shown in attached figure 1. The side support is articulated with the upper portion support through dismantling rotatory nail, the side support can connect into the right angle with the upper portion support promptly, will dismantle rotatory nail and lift the back off, the side support can be dismantled, convenient storage, in addition because the side support has certain length, when the slump is great, the side support removes behind the bottom, the second divergence measurement tower chi can not be moving down, only pull down the side support, the second divergence measurement tower chi just can continue to move down, satisfy slump on a large scale and measure the user demand. The upper support and the side support are hinged to form a supporting diagonal rod, the free ends of the two supporting diagonal rods are hinged to each other, the fixing sleeve is sleeved on the supporting diagonal rods in a sliding mode, the fixing sleeve slides to the hinged position of the two supporting diagonal rods to enable the two supporting diagonal rods to be incapable of rotating, and as shown in the attached drawing 8, the upper support, the side support and the supporting diagonal rods form a triangle, and therefore supporting stability of the second extension measurement tower ruler is guaranteed.
In this embodiment, the bottom plate is square, and two slump dipperstick all are connected with square bottom plate's avris middle part, and the interior limit of slump dipperstick aligns with square bottom plate's side, see figure 1 and show, when measuring, the interior limit of slump dipperstick aligns with the ground paste limit, so set up and can avoid the bottom plate to stretch into the ground paste, cause the influence to the measuring accuracy. The base comprises a bottom plate and a plurality of universal wheels, the number of the universal wheels is four in the example, the universal wheels are connected with the bottom plate through a connecting frame, the centers of the universal wheels and the upper surface of the bottom plate are positioned on the same horizontal plane, the height distance between the upper surface of the bottom plate and the ground is 10mm, and the scale corresponding to the slump measuring ruler is 0-290mm, so that the total height is 300mm, and the slump measuring device is suitable for a slump barrel with the height of 300 mm; the universal wheels are used for facilitating the movement of the device and the operation.
For the support stability of guarantee base to first expansion measurement tower chi, slump measurement chi, the bottom plate comprises first order bottom plate, the second order bottom plate, the third order bottom plate, first order bottom plate, the second order bottom plate, the third order bottom plate links up in proper order, and thickness increases in proper order, slump measurement chi connects the avris at first order bottom plate, see that fig. 9 shows, through the centrobaric position of bottom plate control of different thickness, and then the support of guarantee to measuring the tower chi is stable, avoid taking place to turn on one's side. In this example, the first order bottom plate has a thickness of 3mm, the second order bottom plate has a thickness of 6mm, and the third order bottom plate has a thickness of 9 mm.
The measurement process comprises the following steps:
step 1, after the preparation of slurry in a slump bucket is finished, the slump bucket is lifted vertically and slowly, and after the slurry is collapsed, a measuring device is moved to the position of the slurry;
step 4, moving the slump measuring ruler on the other side, shrinking the front ruler and the reverse ruler, and reading data of the reading port after the slump measuring ruler on the other side is aligned with the side of the slurry;
and 5, sliding the lifting ring and the square sliding buckle to enable the positioning cone to be vertical, keeping the cone tip of the positioning cone aligned with the side of the slurry, and reading the scale of the positioning line on the second expansion measurement tower ruler.
The slump and the slump can be accurately measured by the aid of the slump measuring tower ruler and the slump measuring ruler, operation is simple, measurement can be independently completed by a single person, accurate measurement can be realized for slurries with different slumps and spreads, the measuring range is wide, and due to the telescopic structure of the slump and slump measuring tower ruler, equipment can be conveniently stored and moved, and a new scheme is provided for slump and slump measurement.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a novel slump and extension measuring device which characterized in that: the slump measuring device comprises a first expansion measuring tower ruler, two slump measuring scales, two bases and a slump auxiliary rod, wherein one ends of the two slump measuring scales are respectively connected with two bottom plates, the other ends of the two slump measuring scales are respectively connected with two ends of the first expansion measuring tower ruler, the slump measuring scales are vertical, and the first expansion measuring tower ruler is horizontal; the slump auxiliary rod is connected with the slump measuring scale in a sliding manner and is in a horizontal shape, and scales which are sequentially increased from top to bottom are arranged on the slump measuring scale;
first expansion measurement box staff includes positive chi, anti chi, and positive chi cover is established outside anti chi and the two sliding connection, and the free end of positive chi and anti chi is connected with two slump dipperstick respectively, be carved with the scale that increases from a left side right side in proper order on the positive chi, be carved with the scale that increases from a right side left side in proper order on the anti chi, and the originated scale of anti chi is the end scale of positive chi, and the intersection of positive chi and anti chi forms the reading port.
2. The novel slump and spread measuring device of claim 1, wherein: still include locating component, locating component includes rings, square slip knot, location line, location awl, and rings, location awl are connected respectively to the location line both ends, and square slip knot is established ties on the location line, rings and first extension measurement tower chi sliding connection, square slip knot and slump auxiliary rod sliding connection.
3. The novel slump and spread measuring device of claim 2, wherein: the bottom face of the first expansion measurement tower ruler is provided with a groove, the top of the groove is provided with two vertical rods, the two vertical rods are respectively arranged at the left end and the right end of the first expansion measurement tower ruler, a telescopic cross rod is connected between the two vertical rods, and the hanging ring sleeves the cross rod and is in sliding connection with the cross rod.
4. The novel slump and spread measuring device of claim 2, wherein: the slump auxiliary rod is a second expansion measuring tower ruler with scales which are sequentially increased from left to right, one end of the second expansion measuring tower ruler is connected with the slump measuring ruler in a sliding mode through a movable frame, and butterfly screws for locking the position of the movable frame are arranged on the movable frame; the second extension measurement tower ruler comprises a first section and a second section, the first section is sleeved outside the second section and is in sliding connection with the second section, the free end of the first section is connected with the movable frame, the top surface of the first section is provided with a wire placing groove used for winding and accommodating a positioning wire, the second section is provided with an opening which is communicated up and down, a square long rod is arranged in the opening, two ends of the direction long rod are respectively connected with the thin sheet of the second section, and the square sliding buckle is sleeved on the square long rod in a sliding mode.
5. The novel slump and spread measuring device of claim 1, wherein: still include the support frame subassembly, the support frame subassembly includes upper portion support, side support, supports down tube, fixed cover, upper portion support and slump auxiliary rod fixed connection, and the two is parallel, the side support is articulated with the upper portion support through dismantling rotatory nail, the upper portion support all articulates with the side support has a support down tube, and two free ends that support the down tube are articulated, fixed cover slip cover is established on supporting the down tube, and fixed cover slides to two articulated departments that support the down tube and make two unable rotations of support down tube.
6. The novel slump and spread measuring device of claim 1, wherein: the bottom plate is square, and two slump dipperstick all are connected with square bottom plate's avris middle part, and the interior limit of slump dipperstick aligns with square bottom plate's side.
7. The novel slump and spread measuring device of claim 6, wherein: the base includes bottom plate, universal wheel, and the universal wheel is a plurality of, and the universal wheel passes through the link to be connected with the bottom plate, and the center of universal wheel is in same horizontal plane with the upper surface of bottom plate, and the upper surface of bottom plate is 10mm with the high distance on ground.
8. The novel slump and spread measuring device of claim 7, wherein: the bottom plate comprises first order bottom plate, second order bottom plate, third order bottom plate, and first order bottom plate, second order bottom plate, third order bottom plate link up in proper order, and thickness increases in proper order, and the avris at first order bottom plate is connected to the slump dipperstick.
9. The novel slump and spread measuring device of claim 4, wherein: the scale of the front ruler is 0-500mm, the scale of the reverse ruler is 500-1000mm, the scale of the slump measuring ruler is 0-290mm, the scale of the second expansion measuring tower ruler is 0-500mm, and the scale is accurate to 0.5 mm.
10. A novel slump and expansion measuring method is characterized by comprising the following steps:
step 1, after the preparation of slurry in a slump bucket is finished, the slump bucket is lifted vertically and slowly, and after the slurry is collapsed, a measuring device is moved to the position of the slurry;
step 2, measuring slump; moving the second expansion measurement tower ruler to enable the bottom of the second expansion measurement tower ruler to be flush with the highest point of the slurry, and reading slump measurement ruler data;
step 3, measuring the expansion degree; placing the slump measuring scales on two sides on a certain diameter of the slurry, aligning the slump measuring scale on one side with the side of the slurry, and executing the step 4 if the slump measuring scale is larger than the scale of the positive scale, otherwise executing the step 5;
step 4, moving the slump measuring ruler on the other side, shrinking the front ruler and the reverse ruler, and reading data of the reading port after the slump measuring ruler on the other side is aligned with the side of the slurry;
and 5, sliding the lifting ring and the square sliding buckle to enable the positioning cone to be vertical, keeping the cone tip of the positioning cone aligned with the side of the slurry, and reading the scale of the positioning line on the second expansion measurement tower ruler.
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| CN202010655368.7A CN111665344A (en) | 2020-07-09 | 2020-07-09 | Novel slump and expansion measuring device and measuring method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113702625A (en) * | 2021-09-03 | 2021-11-26 | 中国农业大学 | Slump expansion testing device and method for underwater undispersed concrete |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113702625A (en) * | 2021-09-03 | 2021-11-26 | 中国农业大学 | Slump expansion testing device and method for underwater undispersed concrete |
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