Inorganic binder drying shrinkage detection device

Abstract

The utility model discloses an inorganic binder drying shrinkage detection device which comprises a bottom plate, a fixing plate and an adjusting plate are vertically arranged on the two sides of the upper portion of the bottom plate respectively, the fixing plate is fixedly connected with the bottom plate, and the adjusting plate and a plurality of inserting grooves formed in the bottom plate are inserted, adjusted and fixed. According to the inorganic binder shrinkage detection instrument, the adjusting plate capable of being pulled to adjust the position is arranged on the bottom plate of the inorganic binder shrinkage detection instrument, so that the detection of expansion and contraction amounts of different sizes of large, medium and small beam samples is realized, and the universality is better; the detection using of various specifications of drying shrinkage detection instruments in the prior art is avoided, and the use is more convenient.

Description

Technical Field

[0001] The utility model relates to the field of inorganic binder shrinkage detection, in particular to an inorganic binder shrinkage detection device. Background Art

[0002] Beams in road and bridge construction primarily support the weight of large structures, requiring testing for shrinkage and drying coefficient. Existing testing methods utilize concrete beam specimens. These specimens measure 50*50*200mm for small beams, 100*100*400mm for medium beams, and 200*100*195mm for large beams. The working principle involves placing a beam specimen, formed indoors, on a shrinkage tester with micrometers installed at both ends. When the specimen loses water, the overall shrinkage of the specimen causes the micrometer contacts to move, resulting in a change in the micrometer reading. This change in the micrometer reading is then used to determine the specimen's shrinkage deformation.

[0003] However, the existing testing instruments are customized and purchased for the three sizes of small beams, medium beams and large beams respectively. The fixing plates of the micrometers on the upper sides cannot be adjusted, and it is impossible to test the three types of beams on the same shrinkage detection device. Its versatility is poor, so it is necessary to study a shrinkage detection instrument that can be adjusted to detect specimens of different sizes. Utility Model Content

[0004] In order to solve the above-mentioned problems, the utility model provides a device for detecting shrinkage of inorganic binder.

[0005] The utility model is realized through the following technical solutions:

[0006] A device for detecting shrinkage of inorganic binders includes a base plate, and a fixed plate and an adjustment plate are vertically arranged on both sides of the upper part of the base plate. The fixed plate is fixedly connected to the base plate, and the adjustment plate is plugged and adjusted to a plurality of plug-in slots on the base plate. The adjustment plate is installed with a plurality of micrometers with adjustable positions.

[0007] Further optionally, a threaded hole is provided at the bottom of the plug-in slot, and a positioning screw for limiting the adjustment plate is screwed into the threaded hole.

[0008] Further optionally, an integrated multi-stage inserting platform is provided at the bottom of the adjustment plate, and the multi-stage inserting platform matches the shape of the inserting slot.

[0009] Further optionally, a sealing strip is inserted into the vacant insertion slot, and positioning holes matching the positioning screws are opened on the sealing strip and the bottom of the multi-level insertion platform.

[0010] Further optionally, a plurality of pairs of matching mounting holes are provided on the fixing plate and the adjusting plate, and a micrometer is plugged into one pair of two mounting holes.

[0011] Further optionally, the outer ends of the fixing plate and the adjusting plate are threadedly connected with fixing screws for locking the dial indicator.

[0012] Compared with the existing technology, the beneficial effect of the present invention is that an adjustment plate that can be pulled out to adjust the position is provided on the bottom plate of the inorganic binder shrinkage detection instrument, thereby realizing the detection of the expansion and contraction amounts of large, medium and small beam samples of different sizes. It has better versatility, avoids the previous use of shrinkage detection instruments of various specifications, and is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0014] Figure 2 yes Figure 1 Another state diagram of ;

[0015] In the figure: base plate 1, fixing plate 2, adjustment plate 3, mounting hole 4, dial indicator 5, fixing screw 6, plug-in slot 7, threaded hole 8, multi-level plug-in platform 9, sealing strip 10, positioning screw 11. DETAILED DESCRIPTION

[0016] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0017] like Figure 1 、 2 As shown, a device for detecting shrinkage of inorganic binder comprises a base plate 1, and a fixed plate 2 and an adjusting plate 3 are vertically arranged on both sides of the upper part of the base plate 1. The fixed plate 2 is fixedly connected to the base plate 1, and the adjusting plate 3 is plugged and adjusted with a plurality of plug-in slots 7 opened on the base plate 1. There are three plug-in slots 7, which correspond to the lengths of large, medium and small beam specimens from the outside to the inside. The adjusting plate 3 is equipped with a plurality of micrometers 5 with adjustable positions, and the micrometer 5 is used to display the shrinkage size data of the beam at different periods.

[0018] A threaded hole 8 is provided at the bottom of the insertion slot 7, and a positioning screw 11 for limiting the adjustment plate 3 is screwed into the threaded hole 8. The positioning screw 11 is used to fix the adjustment plate 3 in place to avoid errors in the detection data caused by its loosening during the detection process.

[0019] An integrated multi-stage plug-in platform 9 is provided at the bottom of the adjustment plate 3. The multi-stage plug-in platform 9 matches the shape of the plug-in slot 7. The multi-stage plug-in platform 9 is shaped as multiple outwardly protruding serrations. The multi-stage plug-in platform 9 is fixed to the plug-in slot 7 to prevent the adjustment plate 3 above the multi-stage plug-in platform 9 from shaking, thereby improving the stability of the connection between the adjustment plate 3 and the plug-in slot 7.

[0020] The vacant plug-in slot 7 is plugged with a sealing strip 10. The sealing strip 10 and the bottom of the multi-level plug-in platform 9 are provided with positioning holes that match the positioning screws 11. The provided sealing strip 10 realizes the sealed management of the vacant plug-in slot 7, avoiding impurities generated during the detection of concrete samples from falling into the plug-in slot 7 and causing unnecessary cleaning operations, thereby ensuring the continuity of the next detection of samples of different lengths.

[0021] The fixing plate 2 and the adjusting plate 3 are provided with multiple pairs of matching mounting holes 4 , and there are three pairs of mounting holes 4 , which correspond to different centers of the large, medium and small beams. A dial indicator 5 is inserted into a pair of two mounting holes 4 .

[0022] The outer ends of the fixing plate 2 and the adjusting plate 3 are threadedly connected with fixing screws 6 for locking the dial gauge 5. The dial gauge 5 is adjusted at different positions of the adjusting plate 3 by fixing screws 6 to achieve matching of the positions of large, medium and small beams.

[0023] The implementation principle of the inorganic binder shrinkage detection device in the embodiment of the present application is as follows:

[0024] When testing concrete specimens of three types, namely small beams, medium beams and large beams, the position of the adjustment plate 3 can be adjusted for beams of different sizes so that the spacing between the fixed plate 2 and the adjustment plate 3 can match the corresponding specimen beam size. When adjusting, first loosen and remove the sealing strip 10 in the corresponding insertion groove 7 and the positioning screw 11 at the bottom of the adjustment plate 3;

[0025] After taking it out, insert the multi-stage insert 9 at the bottom of the adjustment plate 3 into the corresponding vacant inserting slot 7, and then insert the previously extracted sealing strip 10 into the position of the inserting slot 7 where the original adjustment plate 3 was located, and restore the positioning screw 11 to the positioning hole at the bottom of the multi-stage insert 9 and the sealing strip 10 to achieve the restricted positioning of the adjustment plate 3 and the sealing strip 10 to prevent them from loosening. After adjusting the position of the adjustment plate 3, place the specimen that has been cured for 7 days under standard temperature and humidity on the bottom plate 1, and point the pointer of the dial gauge 5 to the side end of the specimen to read the original value (the pointer of the dial gauge 5 can be adjusted by loosening the fixing screw 6). After 30 days, read the data of the dial gauge 5 to calculate the shrinkage deformation value of the specimen.

[0026] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. An inorganic binder shrinkage detection device, comprising a base plate (1), characterized in that: A fixed plate (2) and an adjustment plate (3) are respectively vertically arranged on both sides of the upper portion of the base plate (1); the fixed plate (2) is fixedly connected to the base plate (1); the adjustment plate (3) is plugged and adjusted to a plurality of plug-in slots (7) provided on the base plate (1); and the adjustment plate (3) is mounted with a plurality of micrometer gauges (5) capable of adjusting positions.

2. The inorganic binder shrinkage detection device according to claim 1, characterized in that: A threaded hole (8) is provided at the bottom of the insertion slot (7), and a positioning screw (11) for limiting the adjustment plate (3) is screwed into the threaded hole (8).

3. The inorganic binder shrinkage detection device according to claim 1, characterized in that: An integrated multi-stage inserting platform (9) is provided at the bottom of the regulating plate (3), and the shape of the multi-stage inserting platform (9) matches that of the inserting slot (7).

4. The inorganic binder shrinkage detection device according to claim 3, characterized in that: The vacant plug-in slot (7) is plugged with a sealing insert (10), and the bottoms of the sealing insert (10) and the multi-stage inserting platform (9) are provided with positioning holes that match the positioning screws (11).

5. The inorganic binder shrinkage detection device according to claim 1, characterized in that: The fixing plate (2) and the adjusting plate (3) are provided with a plurality of pairs of mounting holes (4) that are matched with each other, and a micrometer (5) is plugged into one of the two mounting holes (4) in a pair.

6. The inorganic binder shrinkage detection device according to claim 5, characterized in that: The outer ends of the fixing plate (2) and the adjusting plate (3) are threadedly connected with fixing screws (6) for locking the dial gauge (5).

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