CN110608651A - Airport pavement concrete mortar detection device and mortar thickness detection method - Google Patents
Airport pavement concrete mortar detection device and mortar thickness detection method Download PDFInfo
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- CN110608651A CN110608651A CN201910811058.7A CN201910811058A CN110608651A CN 110608651 A CN110608651 A CN 110608651A CN 201910811058 A CN201910811058 A CN 201910811058A CN 110608651 A CN110608651 A CN 110608651A
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- 238000001514 detection method Methods 0.000 title claims abstract description 97
- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 85
- 230000000452 restraining effect Effects 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 239000004677 Nylon Substances 0.000 claims description 3
- 229920001903 high density polyethylene Polymers 0.000 claims description 3
- 239000004700 high-density polyethylene Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 description 23
- 238000010276 construction Methods 0.000 description 5
- 239000004568 cement Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 229910001234 light alloy Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
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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
- G01B5/066—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness of coating
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Abstract
The invention discloses a concrete mortar detection device for an airport pavement, which comprises a detection support base plate and a mortar thickness detector, wherein a plurality of first base plate holes are formed in the detection support base plate, and each first base plate hole is provided with one mortar thickness detector; the mortar thickness detector comprises an outer constraint cylinder and an inner detection cylinder arranged in the outer constraint cylinder, wherein the upper end of the outer constraint cylinder is sleeved with a scale ring, the inner detection cylinder comprises an upper cylinder part, and the outer end surface of the upper part of the upper cylinder part is provided with a measuring curve groove; the lower end of the upper cylindrical part is connected with a lower circular table part, the side end of the upper cylindrical part is connected with a first limiting block, a first limiting slotted hole is formed in the side end wall of the outer restraining barrel, and the first limiting block is clamped in the first limiting slotted hole. The detection device is more stable when detecting the thickness of the mortar, and is more convenient and practical to use. The invention also discloses a mortar thickness detection method, which can more accurately detect the thickness of the pavement concrete mortar of the airport runway and has smaller error.
Description
Technical Field
The invention relates to the field of constructional engineering, in particular to a device and a method for detecting mortar thickness on an airport pavement.
Background
At present, cement concrete pavements are adopted in most of newly-built airport runways in China, and the cement concrete runway has the advantages of good durability, long service life, high rigidity, high strength and good integrity; the high resistance to erosion is an important factor to be selected.
The mortar thickness in the pavement concrete construction process has important influence on the durability, average texture depth and flatness of the airport runway and the service life of the operated pavement, the mortar thickness of about 3mm is the best construction condition after long-time experience summary and calculation, and the field measurement usually depends on the operation experience and touch observation feeling of workers, and has no quantitative standard; or a detection instrument consisting of a light inner cylinder and an outer ring cutter mentioned in MH5006-2015 civil airport flying area cement concrete pavement surface layer construction technical specification.
However, in the using process of the instrument, due to the fact that the area of the cutting ring is large, when the cutting ring touches protruding stones or uneven areas under mortar, even if the thickness of the mortar cannot be correctly reflected through multiple measurements; secondly, the gap between the inner cylinder and the outer ring cutter of the instrument is small, the detection result is slow and distorted due to mortar capillarity, and finally, the numerical reading error between 2 mm and 4mm is large due to the fact that the scales of the instrument are marked according to normal millimeter units. At present, the technical defect of products on the market is large, a detection device capable of accurately and quickly reflecting the thickness of mortar is urgently needed to be used in a construction site to guide operation, and the construction quality of the texture of the guidance surface is improved through fine control of the thickness of the mortar, so that the frictional resistance and the service life of an airport runway are guaranteed.
Disclosure of Invention
The invention aims to provide an airport pavement concrete mortar detection device which is more stable in mortar thickness detection and more convenient and practical to use.
In order to achieve the purpose, the invention adopts the technical scheme that:
a device for detecting concrete mortar on an airport pavement comprises a detection support base plate and a mortar thickness detector, wherein a plurality of first base plate holes are formed in the detection support base plate, and each first base plate hole is provided with one mortar thickness detector;
the mortar thickness detector comprises an outer constraint cylinder and an inner detection cylinder arranged in the outer constraint cylinder, wherein the upper end of the outer constraint cylinder is sleeved with a scale ring, the inner detection cylinder comprises an upper cylinder part, and the outer end surface of the upper part of the upper cylinder part is provided with a measuring curve groove;
the lower end of the upper cylindrical part is connected with a lower circular table part, the side end of the upper cylindrical part is connected with a first limiting block, a first limiting slotted hole is formed in the side end wall of the outer restraining barrel, and the first limiting block is clamped in the first limiting slotted hole.
Preferably, the detection supporting bottom plate is a rectangular plastic plate, and a plurality of first bottom plate holes are uniformly distributed on the detection supporting bottom plate.
Preferably, first bottom plate hole has six, and six first bottom plate holes are equallyd divide into two sets ofly, and two sets of first bottom plate holes are set up respectively on the front portion and the rear portion that detect the support bottom plate, and three first bottom plate hole in every group first bottom plate hole is parallel arrangement each other.
Preferably, the radius of each first bottom plate hole is 25 mm-35 mm, and the distance between every two adjacent first bottom plate holes in each group of first bottom plate holes is 40 mm-50 mm;
the outer constraint barrel is cylindrical, and the inner diameter value of the outer constraint barrel is larger than the radius value of the first bottom plate hole.
Preferably, the upper cylinder part is cylindrical, a first slide way shell is arranged in the upper cylinder part on the inner side of the first limiting block, a first baffle is arranged in the middle of the first slide way shell, a first spring and a second spring are arranged in the first slide way shells on two sides of the first baffle, and the two first limiting blocks are respectively connected with the first spring and the second spring after being clamped into two end parts of the first slide way shell.
Preferably, the first limiting block is in a rectangular block shape, the first limiting block is fixedly connected with the outer wall of the upper cylindrical part, the first limiting slotted holes are rectangular holes, the number of the first limiting slotted holes is two, and the two first limiting slotted holes are symmetrically arranged about the central axis of the outer restraining barrel; the first limiting block is adaptive to and clamped in the first limiting groove hole and can move up and down in the first limiting groove hole.
Preferably, the scale ring is in a circular-ring plate shape, the scale range on the front part of the scale ring is 1-10 mm, the number of the scale lines is 21, and the angle between each two lines is 9 degrees;
the measuring curve groove is located on the outer end face of the front portion of the upper cylindrical portion, the distance between the right end of the measuring curve groove and the top end of the upper cylindrical portion is 10 mm, and the distance between the left end of the measuring curve groove and the top end of the upper cylindrical portion is 20 mm.
Preferably, the lower circular truncated cone portion is circular truncated cone-shaped, and the radius value of the upper end surface of the lower circular truncated cone portion is larger than that of the lower end surface of the lower circular truncated cone portion; the radius value of the upper end surface of the lower circular truncated cone portion is the same as the radius value of the upper cylindrical portion.
The invention also aims to provide a mortar thickness detection method, which can more accurately detect the thickness of pavement concrete mortar of an airport runway and has smaller error.
In order to achieve the purpose, the invention adopts the technical scheme that:
a mortar thickness detection method adopts the airport pavement concrete mortar detection device, and specifically comprises the following steps:
providing a detector pull rope, wherein the detector pull rope comprises a main pull rope and four auxiliary pull ropes arranged below the main pull rope, the lower end of each auxiliary pull rope is connected with a drag hook, and the main pull rope is firstly held;
step two, arranging a pull ring on each end corner of the detection support bottom plate, respectively hanging the four pull hooks on the four pull rings, lifting the main pull rope and lifting the whole airport pavement concrete mortar detection device;
placing the detection support bottom plate on a pavement concrete area to be detected, and gradually inserting the inner detection cylinder into the pavement concrete; respectively reading detection height values of six mortar thickness detectors after waiting for 5-10 seconds from the beginning of detecting the contact between the supporting bottom plate and the pavement concrete, and recording;
step four, after the detection height value is recorded, holding the main pull rope and pulling up the whole concrete mortar detection device, and then washing the bottom end face of the detection support bottom plate by using clear water; then, lifting the concrete mortar detection device to detect the mortar thickness value of the pavement concrete area of the next area;
and step four, after six detected height values of the concrete area of the previous surface are obtained, removing the highest value and the lowest value of the six detected height values, and taking the average value of the remaining four detected height values as the mortar thickness value of the concrete area of the previous surface.
Preferably, the main pull rope and the auxiliary pull rope are nylon ropes, and the drag hook and the pull ring are both made of high-density polyethylene materials.
The invention has the beneficial effects that:
the range of the device for measuring the thickness of the mortar is 0-1 cm; when the device is used, the device is lightly placed on the surface of mortar, the detection supporting bottom plate made of light plastic can float on the surface of the mortar due to low density, the inner detection cylinder 3 is inserted into the mortar by means of self gravity until the detection supporting bottom plate acts on the surface of concrete and stops, scales at horizontal intersection positions of a measurement curve and the dial are observed at the moment, six dial values of the six inner detection cylinders 3 are sequentially read, and abnormal values (data with errors of the values and other average values exceeding 35%) are removed. And calculating the average value, namely the mortar thickness of the measured position. According to the mortar thickness detection device, the measurement accuracy and the measurement efficiency are improved by taking the six-point measurement average value in one time in the unified area. Compared with the existing steel cylinder detector in the market, the bottom of the conical column is designed to be conical, so that the influence of mortar resistance and capillary action on measurement is effectively reduced, and the measurement accuracy is improved.
Drawings
In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can obtain other drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of a airport pavement concrete mortar detection device.
Fig. 2 is a schematic view of the bottom structure of the airport pavement concrete mortar detection device.
FIG. 3 is a schematic view of the connection structure of the inner detection cylinder and the first chute housing.
FIG. 4 is a schematic view showing a positional relationship between the detection support base plate and the inner detection cylinder.
Fig. 5 is a schematic view of a connection structure of the first chute shell and the first baffle.
Fig. 6 is a schematic view of a connecting structure of the upper cylindrical part and the lower dome part.
Detailed Description
The invention provides a device and a method for detecting concrete mortar thickness of an airport pavement, and the invention is further explained in detail below in order to make the purpose, technical scheme and effect of the invention clearer and more clear. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention is described in detail below with reference to the accompanying drawings:
example 1
Referring to fig. 1 to 6, an airport pavement concrete mortar detection device comprises a detection supporting base plate 1 and a mortar thickness detector, wherein a plurality of first base plate holes 11 are formed in the detection supporting base plate 1, and each mortar thickness detector is arranged in each first base plate hole 11.
The mortar thickness detector comprises an outer constraint cylinder 2 and an inner detection cylinder 3 arranged in the outer constraint cylinder 2, wherein the upper end of the outer constraint cylinder 2 is sleeved with a scale ring 4. The inner detection cylinder 3 includes an upper cylinder portion 31, and a measurement curve groove 311 is formed on an outer end surface of an upper portion of the upper cylinder portion 31.
The lower end of the upper cylindrical part 31 is connected with a lower circular table part 32, the side end of the upper cylindrical part 31 is connected with a first limiting block 301, the side end wall of the outer constraint cylinder 2 is provided with a first limiting groove hole 21, and the first limiting block 301 is clamped in the first limiting groove hole 21.
Detect supporting baseplate 1 and be the rectangle plastic slab, first baseplate hole 11 has six, and six first baseplate holes 11 are equallyd divide into two groups, and two sets of first baseplate holes 11 set up respectively on detecting supporting baseplate 1's front portion and rear portion, and three first baseplate hole 11 in every group first baseplate hole 11 is parallel arrangement each other.
The radius of the first bottom plate holes 11 is 25 mm-35 mm, and the distance between the adjacent first bottom plate holes 11 in each group of first bottom plate holes 11 is 40 mm-50 mm; the outer constraint cylinder 2 is cylindrical, and the inner diameter value of the outer constraint cylinder 2 is larger than the radius value of the first bottom plate hole 11.
The upper cylinder portion 31 is cylindrical, and the first stopper 301 is rectangular block-shaped.
When the first stopper 301 is movable, a first slideway shell 33 is arranged in the upper cylindrical portion 31 at the inner side of the first stopper 301, a first baffle 34 is arranged in the middle of the first slideway shell 33, a first spring 35 and a second spring 36 are arranged in the first slideway shell 33 at two sides of the first baffle 34, and the two first stoppers 301 are respectively connected with the first spring 35 and the second spring 36 after being clamped into two end portions of the first slideway shell 33. At this time, the first stopper 301 is pressed, and the first stopper 301 can be pressed into the upper cylinder 31.
When the first stopper 301 is fixed, the first stopper 301 is fixedly connected to the outer wall of the upper cylinder portion 31, and the first stopper 301 may be welded to the upper cylinder portion 31 or may be bolted to the upper cylinder portion 31.
In the invention, the first limiting slotted holes 21 are rectangular holes, the number of the first limiting slotted holes 21 is two, and the two first limiting slotted holes 21 are symmetrically arranged about the central axis of the outer restraining barrel 2; the first limiting block 301 is adapted to be clamped in the first limiting slot 21 and can move up and down in the first limiting slot 21. The scale ring 4 is in a shape of a circular ring plate, the scale range of 1-10 mm is arranged on the front part of the scale ring 4, the number of the scale lines is 21, and the angle between every two scale lines is 9 degrees;
the measurement curve groove 311 is located on the outer end surface of the front portion of the upper cylindrical portion 31 between 10 mm and 20 mm from the top end surface of the upper cylindrical portion 31, the distance between the right end of the measurement curve groove 31 and the top end of the upper cylindrical portion is 10 mm, the scale on the scale ring is 10 mm, the distance between the left end of the measurement curve groove and the top end of the upper cylindrical portion is 20 mm, the scale on the scale ring is 00 mm, and if the diameter of the upper cylindrical portion is 3mm, the total length of the curve projection of the measurement curve groove on the dial is 47.1238 mm.
The lower circular table portion 32 is circular table-shaped, and the radius value of the upper end surface of the lower circular table portion 32 is larger than that of the lower end surface of the lower circular table portion 32; the radius of the upper end surface of the lower circular truncated cone portion 32 is the same as the radius of the upper cylindrical portion 31.
Example 2
According to the airport pavement concrete mortar detection device, the detection support base plate made of light plastics is 21cm long, 12cm wide and 0.05cm thick, 6 circular first base plate holes 11 with the diameter of 3.05cm are formed in the detection support base plate, the distance between the circle center of each first base plate hole 11 and the edge of the adjacent first base plate hole 11 is 4.5cm, and the circle centers of the holes are arranged transversely and longitudinally at 6cm intervals.
The outer restraint barrel 2 is a cylinder with the inner diameter of 3.05cm, the height of 5cm and the thickness of 0.05cm, the first limit slotted hole 21 is a rectangular hole with the width of 0.55cm and the length of 2cm, and the distance from the bottom edge of the first limit slotted hole 21 to the detection supporting bottom plate is 2 cm.
The upper cylindrical portion 31 and the lower circular table portion 32 are made of light alloy, the upper cylindrical portion 31 has a diameter of 3cm and a height of 5cm, the lower bottom surface of the lower circular table portion 32 has a diameter of 0.5cm and an upper bottom surface has a diameter of 3cm and a height of 2cm, and the total weight of the inner detection cylinder 3 is about 480 g. The first limiting block 301 is positioned in the first limiting groove hole 21 of the outer restraining barrel 2, plays a limiting role in limiting the inner detecting barrel 3, effectively solves the problem that the inner detecting barrel 3 keeps vertical by depending on the contact of the pipe wall, reduces the contact resistance and improves the measurement precision.
A measuring curve groove 311 is cut between the upper part of the upper cylindrical part 31 and the top surface 1-2cm, and the upper end point and the lower end point of the measuring curve groove 311 are on the diameter upper section of the dial 00-10.
The right end of the measurement curve slot 311 is 1cm from the top surface of the upper cylindrical part 31, the corresponding scale value is 10, the left end is 2cm from the top surface of the upper cylindrical part 31, and the corresponding scale is 00. The total length of the projection of the measurement curve groove 311 on the scale ring 4 is 4.71cm, that is, the half circumference of the upper cylindrical portion 31, and the height of 1cm is divided into 4.7123cm half circumferences by an equidistant projection method L ═ r through a slope curve, thereby improving the measurement accuracy.
The range of the device for measuring the thickness of the mortar is 0-1 cm; when the device is used, the device is lightly placed on the surface of mortar, the detection supporting bottom plate made of light plastic can float on the surface of the mortar due to low density, the inner detection cylinder 3 is inserted into the mortar by means of self gravity until the detection supporting bottom plate acts on the surface of concrete and stops, scales at horizontal intersection positions of a measurement curve and the dial are observed at the moment, six dial values of the six inner detection cylinders 3 are sequentially read, and abnormal values (data with errors of the values and other average values exceeding 35%) are removed. And calculating the average value, namely the mortar thickness of the measured position. According to the mortar thickness detection device, the measurement accuracy and the measurement efficiency are improved by taking the six-point measurement average value in one time in the unified area. Compared with the existing steel cylinder detector in the market, the bottom of the conical column is designed to be conical, so that the influence of mortar resistance and capillary action on measurement is effectively reduced, and the measurement accuracy is improved.
Example 3
A mortar thickness detection method adopts the airport pavement concrete mortar detection device, and specifically comprises the following steps:
providing a detector pull rope, wherein the detector pull rope comprises a main pull rope and four auxiliary pull ropes arranged below the main pull rope, the lower end of each auxiliary pull rope is connected with a drag hook, and the main pull rope is firstly held;
step two, arranging a pull ring on each end corner of the detection support bottom plate, respectively hanging the four pull hooks on the four pull rings, lifting the main pull rope and lifting the whole airport pavement concrete mortar detection device;
placing the detection support bottom plate on a pavement concrete area to be detected, and gradually inserting the inner detection cylinder into the pavement concrete; respectively reading detection height values of six mortar thickness detectors after waiting for 5-10 seconds from the beginning of detecting the contact between the supporting bottom plate and the pavement concrete, and recording;
step four, after the detection height value is recorded, holding the main pull rope and pulling up the whole concrete mortar detection device, and then washing the bottom end face of the detection support bottom plate by using clear water; then, lifting the concrete mortar detection device to detect the mortar thickness value of the pavement concrete area of the next area;
and step four, after six detected height values of the concrete area of the previous surface are obtained, removing the highest value and the lowest value of the six detected height values, and taking the average value of the remaining four detected height values as the mortar thickness value of the concrete area of the previous surface.
The main pull rope and the auxiliary pull rope are nylon ropes, and the drag hook and the pull ring are both made of high-density polyethylene materials.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.
Claims (10)
1. The airport pavement concrete mortar detection device is characterized by comprising a detection support base plate and a mortar thickness detector, wherein a plurality of first base plate holes are formed in the detection support base plate, and each first base plate hole is provided with one mortar thickness detector;
the mortar thickness detector comprises an outer constraint cylinder and an inner detection cylinder arranged in the outer constraint cylinder, wherein the upper end of the outer constraint cylinder is sleeved with a scale ring, the inner detection cylinder comprises an upper cylinder part, and the outer end surface of the upper part of the upper cylinder part is provided with a measuring curve groove;
the lower end of the upper cylindrical part is connected with a lower circular table part, the side end of the upper cylindrical part is connected with a first limiting block, a first limiting slotted hole is formed in the side end wall of the outer restraining barrel, and the first limiting block is clamped in the first limiting slotted hole.
2. The airport pavement concrete mortar detection device of claim 1, wherein the detection support base plate is a rectangular plastic plate, and a plurality of first base plate holes are uniformly distributed on the detection support base plate.
3. The airport pavement concrete mortar detection apparatus of claim 2, wherein there are six first floor holes, and the six first floor holes are divided into two groups, the two groups of first floor holes are respectively disposed on the front portion and the rear portion of the detection support floor, and three first floor holes in each group of first floor holes are disposed in parallel with each other.
4. The airport pavement concrete mortar detection apparatus according to claim 3, wherein the radius of the first floor holes is 25 mm-35 mm, and the distance between adjacent first floor holes in each group of first floor holes is 40 mm-50 mm;
the outer constraint barrel is cylindrical, and the inner diameter value of the outer constraint barrel is larger than the radius value of the first bottom plate hole.
5. The airport pavement concrete mortar detection device of claim 1, wherein the upper cylindrical portion is cylindrical, a first slide way shell is arranged in the upper cylindrical portion on the inner side of the first limiting block, a first baffle plate is arranged in the middle of the first slide way shell, a first spring and a second spring are arranged in the first slide way shell on two sides of the first baffle plate, and the two first limiting blocks are respectively connected with the first spring and the second spring after being clamped into two end portions of the first slide way shell.
6. The airport pavement concrete mortar detection device of claim 1, wherein the first limiting block is rectangular block-shaped, the first limiting block is fixedly connected with the outer wall of the upper cylindrical part, the first limiting slot holes are rectangular holes, the number of the first limiting slot holes is two, and the two first limiting slot holes are symmetrically arranged about the central axis of the outer restraining cylinder; the first limiting block is adaptive to and clamped in the first limiting groove hole and can move up and down in the first limiting groove hole.
7. The airport pavement concrete mortar detection device according to claim 1, wherein the scale ring is in a shape of a circular ring plate, the scale range on the front part of the scale ring is 1-10 mm, the number of the scale lines is 21, and the angle between each line is 9 degrees;
the measuring curve groove is located on the outer end face of the front portion of the upper cylindrical portion, the distance between the right end of the measuring curve groove and the top end of the upper cylindrical portion is 10 mm, and the distance between the left end of the measuring curve groove and the top end of the upper cylindrical portion is 20 mm.
8. The airport pavement concrete mortar detection apparatus of claim 1, wherein the lower circular table portion is circular table-shaped, and a radius value of an upper end surface of the lower circular table portion is larger than a radius value of a lower end surface of the lower circular table portion; the radius value of the upper end surface of the lower circular truncated cone portion is the same as the radius value of the upper cylindrical portion.
9. The mortar thickness detection method is characterized in that the airport pavement concrete mortar detection device of any one of claims 1 to 8 is adopted, and the method specifically comprises the following steps:
providing a detector pull rope, wherein the detector pull rope comprises a main pull rope and four auxiliary pull ropes arranged below the main pull rope, the lower end of each auxiliary pull rope is connected with a drag hook, and the main pull rope is firstly held;
step two, arranging a pull ring on each end corner of the detection support bottom plate, respectively hanging the four pull hooks on the four pull rings, lifting the main pull rope and lifting the whole airport pavement concrete mortar detection device;
placing the detection support bottom plate on a pavement concrete area to be detected, and gradually inserting the inner detection cylinder into the pavement concrete; respectively reading detection height values of six mortar thickness detectors after waiting for 5-10 seconds from the beginning of detecting the contact between the supporting bottom plate and the pavement concrete, and recording;
step four, after the detection height value is recorded, holding the main pull rope and pulling up the whole concrete mortar detection device, and then washing the bottom end face of the detection support bottom plate by using clear water; then, lifting the concrete mortar detection device to detect the mortar thickness value of the pavement concrete area of the next area;
and step four, after six detected height values of the concrete area of the previous surface are obtained, removing the highest value and the lowest value of the six detected height values, and taking the average value of the remaining four detected height values as the mortar thickness value of the concrete area of the previous surface.
10. The mortar thickness detection method according to claim 9, wherein the main pulling rope and the auxiliary pulling rope are nylon ropes, and the pulling hook and the pulling ring are both made of high-density polyethylene materials.
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| CN204080602U (en) * | 2014-08-04 | 2015-01-07 | 北京金港场道工程建设股份有限公司 | A kind of mortar thickness checkout gear |
| CN105423857A (en) * | 2015-11-03 | 2016-03-23 | 北京中企卓创科技发展有限公司 | Device and method for measuring thickness of cement mortar at surface layer of pavement concrete |
| CN206930244U (en) * | 2017-06-05 | 2018-01-26 | 中建八局第四建设有限公司 | A kind of device for detecting thickness of concrete |
| CN206891333U (en) * | 2017-07-05 | 2018-01-16 | 叶东甫 | A kind of Thickness sensitivity instrument of skin heat-insulation layer |
| CN210533239U (en) * | 2019-08-30 | 2020-05-15 | 民航机场建设工程有限公司 | Airport pavement concrete mortar detection device |
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