An apparatus for ultrasonically detecting the setting time of geopolymer

Abstract

The application discloses a device for detecting the setting time of geopolymer by ultrasonic waves, which comprises a frame bottom plate, frame side plates oppositely arranged on both sides of the frame bottom plate along the length direction of the frame bottom plate, and a rectangular frame template with open ends and upper portions formed by the frame bottom plate and the frame side plates, an anti-evaporation cover arranged on the top of the frame side plate, a grouting hole arranged in the middle of the anti-evaporation cover, a grouting funnel arranged on the upper portion of the grouting hole, and a condenser pipe reserved opening arranged on both sides of the grouting hole, wherein a condenser pipe is arranged in the condenser pipe reserved opening.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of geopolymer setting time detection device, and particularly relates to an ultrasonic wave detection geopolymer setting time device. BACKGROUND

[0002] Geopolymer refers to a kind of inorganic high polymer three-dimensional network structure cementitious material with Si-O-Al-O- as basic structural unit, which is generated by mineral polycondensation under the action of alkali activator, and is mostly solid waste, such as fly ash, slag, kaolin, coal gangue and the like. The reaction is carried out at room temperature, and high temperature calcination is not needed, so the production process has small carbon footprint. In recent years, due to the advantages of rich raw materials, excellent mechanical properties, strong durability, strong heavy metal ion sealing capacity and the like, geopolymer gradually replaces traditional Portland cement, and is widely used in fields of building construction, aviation, mine grouting, radiation sealing and the like as a kind of green cementitious material.

[0003] The formation process of early microstructure is crucial to geopolymer, because it directly determines the mechanical properties and durability of the material. According to the provisions of GB / T 1346-2011, the setting time of geopolymer is tested by using a Vicat apparatus, that is, the time required for the mixture to gradually harden from the plastic state to the non-plastic state after starting mixing, to characterize whether the geopolymer meets the construction requirements. The method is time-consuming and laborious, has high data discreteness, and has large human error. Each test causes damage to the geopolymer from the outside to the inside. In the forming process, affected by the component of raw material, the type and amount of activator, the nature of additive and the like, the setting time of geopolymer has a wide span, from 8 minutes to 48 hours. In order to obtain the information of early alkali-activated polycondensation process of geopolymer and realize continuous nondestructive monitoring, it is necessary to design a new device for detecting the setting time of geopolymer. SUMMARY

[0004] To solve the above technical problems, the technical scheme provided by the present application is as follows: an ultrasonic wave detection geopolymer setting time device, comprising a frame bottom plate, frame side plates oppositely arranged on both sides of the frame bottom plate along the length direction of the frame bottom plate, the frame bottom plate and the frame side plates forming a rectangular frame template with open ends and upper portions, an anti-evaporation cover arranged at the top of the frame side plate, a grouting hole arranged in the middle of the anti-evaporation cover, a grouting funnel arranged at the upper portion of the grouting hole, a condenser tube reserved port arranged on both sides of the grouting hole, a condenser tube arranged in the condenser tube reserved port, a U-shaped clamping groove arranged on the frame side plate and the frame bottom plate between the condenser tube reserved port and the grouting hole, a clamping groove side plate arranged in the U-shaped clamping groove, the clamping groove side plate being located at the lower portion of the anti-evaporation cover, and a non-penetrating ultrasonic probe placing hole arranged in the middle of the frame side plate.

[0005] Preferably, a spacing is arranged between the bottom of the condensing tube and the frame bottom plate, and the spacing is 5mm.

[0006] Preferably, pearl wool is arranged between the condensing tube and the frame bottom plate.

[0007] Preferably, an ultrasonic probe fixing block is arranged at the bottom and both sides of the ultrasonic probe placing hole.

[0008] Preferably, the rectangular frame template is made of 10mm-thick acrylic plate.

[0009] Preferably, the clamping groove side plate is made of foam aluminum.

[0010] Preferably, the inside of the rectangular frame template, the inside of the U-shaped clamping groove, and the surface of the clamping groove side plate are coated with a release agent.

[0011] Preferably, a sealing cover is clamped at the opening at the top of the grouting funnel

[0012] After the above scheme is adopted, the present application has the following advantages: the present application adopts a device for testing the setting time of geopolymer by compressed ultrasonic waves, geopolymer slurry is injected into a test mold through a grouting funnel, and continuous real-time monitoring can be immediately realized by ultrasonic waves, the whole process is realized by temperature adjustment of a condensing tube, and operations such as manually taking a test piece, installing a Vicat apparatus, reading, and turning over a sample can be avoided, thereby avoiding damage caused by a testing needle and human interference in the process, especially, the setting time of fast-hardening or slow-setting geopolymer can be accurately detected, the detection precision is high, installation is convenient, and the degree of automation is high. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and other related drawings can be obtained by those skilled in the art without creative labor.

[0014] Figure 1 is a structural schematic diagram of a device for testing the setting time of geopolymer by ultrasonic waves.

[0015] Figure 2 is a side structural schematic diagram of a device for testing the setting time of geopolymer by ultrasonic waves.

[0016] Figure 3 is an end structural schematic diagram of a device for testing the setting time of geopolymer by ultrasonic waves.

[0017] Figure 4is a split schematic view of an ultrasonic wave detection device for detecting the setting time of a geopolymer. DETAILED DESCRIPTION

[0018] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor fall within the scope of protection of the present application.

[0020] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, thus, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0021] In the description of the embodiments of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and thus cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0022] In addition, if the terms "horizontal", "vertical", "overhanging" and the like appear, they do not mean that the component must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0023] In the description of the embodiments of the present application, "a plurality of" represents at least 2.

[0024] In the description of the embodiments of the present application, it also needs to be explained that, unless explicitly specified and limited, if the terms "arrange", "install", "connect", "connect" appear, they should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0025] Embodiments

[0026] In conjunction with the accompanying Figures 1-4 An apparatus for detecting the setting time of geopolymer by ultrasonic wave, comprising a frame bottom plate 1, frame side plates 2 oppositely arranged along the length direction of the frame bottom plate 1 on both sides of the frame bottom plate 1, the frame bottom plate 1 and the frame side plates 2 forming a rectangular frame template with open ends and upper part, an anti-evaporation cover 3 arranged on the top of the frame side plates 2, a grouting hole 4 arranged in the middle of the anti-evaporation cover 3, a grouting funnel 5 arranged on the upper part of the grouting hole 4, a sealing cover 13 arranged on the grouting funnel 5, a condenser tube reserved port 6 arranged on both sides of the grouting hole 4, a condenser tube 7 arranged in the condenser tube reserved port 6, a space arranged between the bottom of the condenser tube 7 and the frame bottom plate 1, the space being 5mm, and pearl wool 11 arranged between the condenser tube 7 and the frame bottom plate 1 for fixing the condenser tube and simultaneously serving as a medium material for temperature transmission; a U-shaped clamping groove 8 arranged on the frame side plates 2 and the frame bottom plate 1 between the condenser tube reserved port 6 and the grouting hole 4, a clamping groove side plate 9 arranged in the U-shaped clamping groove 8, the clamping groove side plate 9 being located at the lower part of the anti-evaporation cover 3, a non-penetrating ultrasonic probe placement hole 10 arranged in the middle of the frame side plates 2; an ultrasonic probe fixing block 12 arranged on the bottom and both sides of the ultrasonic probe placement hole 10.

[0027] The rectangular frame template is made of 10mm-thick acrylic plate, the internal rectangular bottom surface is 160mm×40mm, and the internal height is 40mm; the clamping groove side plate 9 includes left and right side plates on both sides of the rectangular frame template, which are made of square foam aluminum with a side length of 45mm, symmetrically installed in the U-shaped clamping groove in the rectangular frame template, and constitute a geopolymer test mold with a size of 80mm×40mm×40mm;

[0028] In addition, the inside of the rectangular frame template, the U-shaped clamping groove and the clamping groove side plate are all coated with a release agent.

[0029] The application is used in the following way: a release agent is applied to the inside of the rectangular frame template, the U-shaped clamping groove and the clamping groove side plate, the clamping groove side plate is vertically assembled in the U-shaped clamping groove, and a cuboid geopolymer test mold is formed. The anti-evaporation cover is placed on the rectangular frame template, the funnel cover on the grouting funnel is opened, the geopolymer slurry is injected into the geopolymer test mold through the grouting funnel, the funnel cover is closed, two condensing tubes are respectively inserted into the condensing tube reserved holes, the gap between the condensing tube and the geopolymer test mold is filled with pearl wool, the pearl wool can fix the condensing tube and also can be a good heat transfer medium to reduce the temperature of the geopolymer test mold; the external ultrasonic generator is started, the ultrasonic emission probe and the ultrasonic receiving probe are respectively placed in the two ultrasonic probe reserved holes and are fixed through the fixing block on the rectangular frame template; the ultrasonic emission probe emits ultrasonic waves and penetrates the geopolymer slurry, which is received by the probe on the other side, according to the time difference between the emission and reception and the width of the geopolymer test mold, the ultrasonic transmission speed and the signal attenuation law are obtained, and then the geopolymer coagulation and hardening condition is inferred.

[0030] The above description of the application and its embodiments is not restrictive, and the embodiments shown in the drawings are only one of the embodiments of the application, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired by it, without departing from the purpose of the application, without creative design, similar structure and embodiments of the technical solution can be designed, which should belong to the protection scope of the application.

Claims

1. An apparatus for ultrasonically detecting the setting time of a geopolymer, characterised in that, The frame bottom plate, the frame side plate arranged oppositely on both sides of the frame bottom plate along the length direction of the frame bottom plate, the frame bottom plate and the frame side plate form a rectangular frame template with open ends and upper portions, the top of the frame side plate is provided with an anti-evaporation cover, the middle of the anti-evaporation cover is provided with a grouting hole, the upper portion of the grouting hole is provided with a grouting funnel, the two sides of the grouting hole are respectively provided with a condenser pipe reserved port, the condenser pipe reserved port is provided with a condenser pipe, the frame side plate and the frame bottom plate between the condenser pipe reserved port and the grouting hole are provided with a U-shaped clamping groove, the U-shaped clamping groove is provided with a clamping groove side plate, the clamping groove side plate is located at the lower portion of the anti-evaporation cover, and the middle of the frame side plate is provided with a non-penetrating ultrasonic probe placing hole. The bottom of the condenser pipe and the frame bottom plate are provided with a spacing, the spacing is 5mm, the condenser pipe and the frame bottom plate are placed with pearl wool, the bottom and the two sides of the ultrasonic probe placing hole are respectively provided with an ultrasonic probe fixing block, the rectangular frame template is made of 10mm thick acrylic plate, and the clamping groove side plate is made of foamed aluminum.

2. The apparatus for detecting the setting time of geopolymer according to claim 1, wherein, The inner side of the rectangular frame template, the inner side of the U-shaped clamping groove and the surface of the clamping groove side plate are coated with a release agent.

3. The apparatus for detecting the setting time of geopolymer according to claim 1, wherein, The top opening of the grouting funnel is clamped with a sealing cover.

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