Recycled aggregate geopolymer concrete beam and production method thereof

Abstract

The invention discloses a recycled aggregate geopolymer concrete beam which comprises an I-shaped steel beam, grids, horizontal steel bars and concrete. The multiple grids are arranged on the two sides of a web of the I-shaped steel beam and arranged in the length direction of the I-shaped steel beam, and the horizontal steel bars penetrate through small grids of the grids. The concrete is poured on the two sides of a web of the I-shaped steel beam, and the concrete is recycled aggregate geopolymer concrete. According to the recycled aggregate geopolymer concrete beam, the recycled aggregate geopolymer concrete is used for replacing traditional silicate concrete, and consumption of traditional cement is reduced; the FRP grating is used as a stirrup in the beam, so that the mechanical property of the recycled aggregate geopolymer concrete beam can be guaranteed, the usage amount of steel can be reduced, and the recycled aggregate geopolymer concrete beam has the multiple advantages of being environmentally friendly, saving energy and being low in cost.

Description

Technical Field

[0001] The invention relates to the field of construction, and in particular to a recycled aggregate geopolymer concrete beam and a production method thereof. Background Art

[0002] With the development of global urbanization, concrete, as an indispensable basic resource for urban construction, is facing increasing consumption. As an indispensable component of concrete, the demand for ordinary Portland cement is also rising. However, the production of ordinary Portland cement not only consumes a large amount of natural resources, but also seriously pollutes the environment, which is not in line with the path of sustainable development of mankind.

[0003] In order to solve the consumption problem of ordinary silicate level, a recycled aggregate geopolymer concrete has emerged in the prior art; wherein the recycled aggregate mainly refers to the waste concrete after crushing; geopolymer is a new type of inorganic cementitious material prepared by activating the raw materials containing silicate active components with alkaline activators. The raw materials for the production of geopolymer can be waste glass, blast furnace slag, steel slag, fly ash, metakaolin and construction waste dust. The energy consumption of geopolymer production is only 10% to 30% of that of ordinary silicate cement, and the carbon dioxide emission is only 1 / 6.

[0004] At present, although this new type of recycled aggregate geopolymer concrete is more environmentally friendly and low-carbon, its mechanical properties are not stable enough compared to ordinary Portland cement. In practical applications, more reinforcement is often required to achieve safety, resulting in an increase in the consumption of construction steel. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a recycled aggregate geopolymer concrete beam to reduce the consumption of ordinary Portland cement and steel.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a recycled aggregate geopolymer concrete beam, comprising an I-beam, a grid, horizontal steel bars and concrete;

[0007] There are multiple grids, which are arranged on both sides of the web of the I-beam and along the length direction of the I-beam, and the horizontal steel bars pass through the small grids of the grids;

[0008] The concrete is poured on both sides of the web of the I-beam, and the concrete is recycled aggregate geopolymer concrete;

[0009] The material of the grid is fiber composite reinforced material. There are various types of fiber reinforced composite materials (Fiber Reinforced Polymer). Commonly used ones in the construction field include glass fiber reinforced composite plastic (GFRP), carbon fiber reinforced composite plastic (CFRP) and basalt fiber reinforced polymer (BFRP).

[0010] The recycled aggregate geopolymer concrete beam of the present invention uses recycled aggregate geopolymer concrete instead of traditional silicate concrete, thereby reducing the consumption of traditional cement; the FRP grid is used as the stirrups inside the beam, which can not only ensure the mechanical properties of the recycled aggregate geopolymer concrete beam, but also reduce the amount of steel used, so that the recycled aggregate geopolymer concrete beam of the present invention has multiple advantages of environmental protection, energy saving and low cost.

[0011] In the recycled aggregate geopolymer concrete beam of the present invention, the horizontal steel bars pass through the small grids of the grid. Generally speaking, the small grids are square and larger than the diameter of the horizontal steel bars, which will cause the horizontal steel bars to be unable to be fixed in the small grids. In order to solve this problem, the grids in the present invention are not all aligned. The grids are divided into a first-class grid and a second-class grid according to their positions at the I-beam. The shapes and structures of the first-class grids and the second-class grids are the same, and the two are only different in the positions at the I-beam, that is, the first-class grids are aligned with the first-class grids, but the second-class grids are not aligned with the first-class grids; the first-class grids and the second-class grids are arranged alternately in sequence along the length direction of the I-beam; the first-class grids and the second-class grids are staggered, so that an inner corner of the small grid of the first-class grid and an inner corner of the small grid of the second-class grid jointly clamp the horizontal steel bars to ensure that the horizontal steel bars cannot shake in the small grids.

[0012] Furthermore, the recycled aggregate geopolymer concrete beam also includes a first steel member, the type of grille is fixed to the web of the I-beam by the first steel member, the first steel member includes an angle steel and an insert arranged on the angle steel, the shape of the insert block matches the shape of the small grid of the grille, the insert block is inserted into the small grid of the type of grille, and the angle steel is welded to the web of the I-beam.

[0013] Furthermore, the recycled aggregate geopolymer concrete beam also includes a second steel member, which is wedge-shaped. The second steel member is inserted from one end of the second type of grid and between the second type of grid and the web of the I-beam. The second steel member lifts the second type of grid so that the second type of grid is misaligned with the first type of grid, and the second steel member is welded to the web of the I-beam.

[0014] The present invention also provides a method for producing a recycled aggregate geopolymer concrete beam, which specifically comprises a first auxiliary component, and the recycled aggregate geopolymer concrete beam of the present invention is produced by using the first auxiliary component;

[0015] The first auxiliary component includes a steel bar frame, an intermediate frame plate and a pad, the steel bar frame includes a lifting rod and an end frame plate installed on the lifting rod, the surface of the end frame plate is provided with a first sleeve for inserting the end of the horizontal steel bar, the number of the first sleeves and the relative position of each other should be consistent with the number and relative position of the horizontal steel bars in the recycled aggregate geopolymer concrete beam of the present invention, and the surface of the intermediate frame plate is provided with a through hole for the horizontal steel bar to pass through;

[0016] The production method of the recycled aggregate geopolymer concrete beam specifically comprises the following steps:

[0017] Step 1: Place the I-beam horizontally, with the web of the I-beam in a horizontal position;

[0018] Step 2: Place a steel frame at each end of the I-beam;

[0019] Step 3: Put the middle frame plate on the horizontal steel bar, and insert the two ends of the horizontal steel bar into the steel bar frames at both ends of the I-beam;

[0020] Step 4: Place the pad horizontally in the middle of the I-beam, and then lower the end racks of the steel frame until the middle rack falls on the pad; then, remove one steel frame to free up one end of the horizontal steel bar;

[0021] Step 5: Insert the set number of grilles into the horizontal steel bars in sequence;

[0022] Step 6: Reinstall the removed steel bars;

[0023] Step 7: Remove the pad, push the middle frame plate in the middle position to the edge, and adjust the spacing of all grilles on the horizontal reinforcement to meet the requirements of the drawing;

[0024] Step 8: Lower the end frame plate of the steel frame again until all the grilles fall on the web of the I-beam, and then install and weld the first steel piece so that all the first-class grilles are fixed on the web of the I-beam;

[0025] Step 9: Insert the second steel piece from one end of the second type of grille between the second type of grille and the web of the I-beam. The second steel piece lifts up the second type of grille so that the second type of grille is misaligned with the first type of grille and clamps the horizontal steel bars. Then, weld the second steel piece to the web of the I-beam.

[0026] Step 10: After all horizontal reinforcement and gratings are installed, pour the recycled aggregate geopolymer concrete.

[0027] Furthermore, a second sleeve is provided at the perforation of the middle frame plate, and the second sleeve can cover the first sleeve. The middle frame plate can be directly inserted into the first sleeve of the end frame plate of the steel frame by means of the second sleeve, so as to facilitate the operation of step 3.

[0028] In step 8, although all the grids are put on the horizontal steel bars, since the size of the small grids is larger than the diameter of the steel bars, all the grids cannot be aligned neatly; therefore, in step 8, the positions of all the grids of the first type are fine-tuned so that all the grids of the first type are aligned;

[0029] In step 9, it is necessary to push the second steel piece at the inner corner of the I-beam while welding the second steel piece. In order to facilitate the operation, a second auxiliary component is used in step 9;

[0030] The second auxiliary component includes a housing, a central axis, a rotating sleeve and a lever, the bottom of the housing is provided with a slot that can be inserted into the wing plate of the I-beam, the central axis is installed in the housing, the rotating sleeve is sleeved on the central axis, and the lever is fixed on the rotating sleeve;

[0031] The bottom of the lever is aligned with the second steel member. In step 9, the worker pulls the lever, and the lever pushes the second steel member to be inserted between the second type grid and the web of the I-beam.

[0032] In the above operation, the worker cannot let go after pulling the lever, which is not conducive to the welding operation of the second steel piece; in order to further facilitate the operation, the second auxiliary component also includes a first connecting rod, a second connecting rod and a check valve;

[0033] The one-way device comprises a housing, a moving rod, a sealing bolt, a spring and a steel ball. The housing is provided with a blind hole, the bottom of which is bowl-shaped, and the sealing bolt closes the blind hole. The moving rod is inserted into the blind hole through the sealing bolt and passes through the bottom of the blind hole. A spring and steel balls distributed around the moving rod are provided in the blind hole. The spring pushes the steel balls onto the inclined surface at the bottom of the blind hole, and the steel balls are squeezed between the inclined surface at the bottom of the blind hole and the moving rod, so that the moving rod can only translate in one direction.

[0034] One end of the first connecting rod is fixed on the shifting rod, and the other end is hinged to one end of the second connecting rod, and the other end of the second connecting rod is hinged to the moving rod;

[0035] After the worker pulls the lever, the rotating sleeve drives the moving rod to translate through the first connecting rod and the second connecting rod; after the lever drives the second steel part to move to the specified position, the worker can release the lever. Due to the one-way translation and reverse locking characteristics of the moving rod, the lever can still stably stop at the current position after the worker lets go.

[0036] Furthermore, an unlocking gasket is provided at the bottom of the blind hole, and an unlocking rod is provided on the unlocking gasket, which passes through the bottom of the blind hole; when the worker pushes the unlocking rod, the unlocking gasket will push the steel ball to translate and compress the spring. At this time, a gap appears between the steel ball and the moving rod, and the one-way locking function of the moving rod is released, so that the worker can reverse the lever to its initial position again.

[0037] Beneficial effects: (1) The recycled aggregate geopolymer concrete beam of the present invention uses recycled aggregate geopolymer concrete instead of traditional silicate concrete, reducing the consumption of traditional cement; using FRP grids as stirrups inside the beam can not only ensure the mechanical properties of the recycled aggregate geopolymer concrete beam, but also reduce the amount of steel used, so that the recycled aggregate geopolymer concrete beam of the present invention has multiple advantages of environmental protection, energy saving and low cost. (2) The recycled aggregate geopolymer concrete beam of the present invention realizes the fixed connection between the grid and the horizontal steel bar by staggering the first type of grid and the second type of grid, and realizes the production and installation of a similar traditional steel cage structure without bundling. (3) The production method of the recycled aggregate geopolymer concrete beam of the present invention uses a steel frame, an intermediate frame plate and a pad to realize the synchronous arrangement and installation of the horizontal steel bar and the grid, thereby improving the production efficiency of the beam. (4) The production method of the recycled aggregate geopolymer concrete beam of the present invention uses a second auxiliary component with a one-way device to realize the pushing action of the second steel part and temporarily fix the second steel part in the current position, thereby greatly improving the installation efficiency of the second steel part. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a stereoscopic view of the recycled aggregate geopolymer concrete beam of Example 1.

[0039] Figure 2 It is a three-dimensional view of the first steel part in Example 1.

[0040] Figure 3 It is a stereoscopic diagram of a type of grille and a first steel member in Example 1.

[0041] Figure 4 This is the installation diagram of the second type of grille and the second steel member in Example 1.

[0042] Figure 5 This is a front view of a type of grille after installation in Example 1.

[0043] Figure 6 This is a front view of the second type of grille after installation in Example 1.

[0044] Figure 7 It is a front view of the first type grille and the second type grille after installation in Example 1.

[0045] Figure 8 This is the production flow chart of recycled aggregate geopolymer concrete beams in Example 1 (part 1).

[0046] Fig. 9 This is the production flow chart of recycled aggregate geopolymer concrete beams in Example 1 (part 2).

[0047] Fig.10 This is the production flow chart of recycled aggregate geopolymer concrete beams in Example 1 (part 3).

[0048] Fig.11 This is the production flow chart of recycled aggregate geopolymer concrete beams in Example 1 (Part 4).

[0049] Fig.12 This is the installation diagram of the second type of grille in Example 1 (one).

[0050] Fig.13 yes Fig.12 A enlarged view of .

[0051] Fig.14 This is the installation diagram of the second type of grille in Example 1 (part 2).

[0052] Fig.15 yes Fig.14 B is an enlarged view of .

[0053] Fig.16 It is a schematic diagram of unlocking the one-way device in Example 1.

[0054] Among them: 100, I-beam; 200, grille; 210, first type grille; 220, second type grille; 300, horizontal steel bar; 400, first steel member; 500, second steel member; 600, first auxiliary component; 610, steel bar frame; 611, lifting rod; 612, end frame plate; 613, first sleeve; 620, middle frame plate; 621, second sleeve; 630, pad; 700, second auxiliary component; 710, shell; 711, slot; 720, center axis; 730, rotating sleeve; 740, lever; 750, first connecting rod; 760, second connecting rod; 770, isolator; 771, shell; 771-1, blind hole; 772, moving rod; 773, sealing bolt; 774, spring; 775, steel ball; 776, unlocking gasket; 777, unlocking rod. DETAILED DESCRIPTION

[0055] The present invention is further described in detail below in conjunction with specific implementation modes.

[0056] Example 1

[0057] like Figure 1 As shown, the recycled aggregate geopolymer concrete beam of this embodiment includes an I-beam 100 , a grid 200 , a horizontal steel bar 300 , concrete, a first steel member 400 and a second steel member 500 .

[0058] There are multiple grilles 200, which are arranged on both sides of the web of the I-beam 100 and along the length direction of the I-beam 100. The horizontal steel bars 300 pass through the small grids of the grilles 200. Figure 3 As described above, the grid 200 has a plurality of small square grids arranged in a matrix form.

[0059] In this embodiment, the row of grids 200 on one side of the web of the I-beam 100 are not all aligned. The grids 200 are divided into a first type of grid 210 and a second type of grid 220 according to the different positions on the I-beam 100. The first type of grid 210 and the second type of grid 220 have the same shape and structure, and the two are only different in the position on the I-beam 100, that is, the first type of grid 210 is aligned with the first type of grid 210, but the second type of grid 220 is not aligned with the first type of grid 210; along the length direction of the I-beam 100, the first type of grid 210 and the second type of grid 220 are arranged alternately in sequence. Figures 5 to 7 As shown, the first type of grid 210 and the second type of grid 220 are staggered so that an inner corner of a small grid of the first type of grid 210 and an inner corner of a small grid of the second type of grid 220 jointly clamp the horizontal steel bar 300 to ensure that the horizontal steel bar 300 cannot shake in the small grid.

[0060] like Figure 2 As shown, the first steel member 400 includes an angle steel and an insert block disposed on the angle steel, and the shape of the insert block matches the shape of the small grid of the grille 200, such as Figure 3 As shown, the plug is inserted into a small grid of a type of grid 210, such as Figure 5 As shown, a type of grid 210 can be fixed by welding angle steel to the web of the I-beam 100.

[0061] like Figure 4 As shown, the second steel member 500 is wedge-shaped, and the second steel member 500 is inserted from one end of the second type of grid 220 between the second type of grid 220 and the web of the I-beam 100. The second steel member 500 lifts the second type of grid 220 so that the second type of grid 220 is misaligned with the first type of grid 210, and the second steel member 500 is welded to the web of the I-beam 100.

[0062] After the grille 200 and the horizontal reinforcement 300 are installed, concrete is poured on both sides of the web of the I-beam 100 to form a beam; the concrete used in this embodiment is recycled aggregate geopolymer concrete; the material of the grille 200 is fiber composite reinforced material.

[0063] This embodiment also provides a method for producing a recycled aggregate geopolymer concrete beam, which requires the use of a first auxiliary component 600 and a second auxiliary component 700 .

[0064] like Figure 8 and Fig. 9As shown, the first auxiliary component 600 includes a steel frame 610, an intermediate frame plate 620 and a pad 630. The steel frame 610 includes a lifting rod 611 and an end frame plate 612 installed on the lifting rod 611. The surface of the end frame plate 612 is provided with a first sleeve 613 for inserting the end of the horizontal steel bar 300. The number and relative position of the first sleeves 613 should be consistent with the number and relative position of the horizontal steel bars 300 in the recycled aggregate geopolymer concrete beam. The surface of the intermediate frame plate 620 is provided with a through hole for the horizontal steel bar 300 to pass through. The through hole of the intermediate frame plate 620 is provided with a second sleeve 621, and the second sleeve 621 can cover the first sleeve 613.

[0065] like Fig.12 and Fig.13 As shown, the second auxiliary component 700 includes an outer shell 710, a central axis 720, a rotating sleeve 730, a lever 740, a first connecting rod 750, a second connecting rod 760 and a isolator 770. The bottom of the outer shell 710 is provided with a slot 711 that can be inserted into the wing plate of the I-beam beam 100. The central axis 720 is installed in the outer shell 710, the rotating sleeve 730 is sleeved on the central axis 720, and the lever 740 is fixed on the rotating sleeve 730.

[0066] The one-way device 770 includes a shell 771, a moving rod 772, a sealing bolt 773, a spring 774, a steel ball 775, an unlocking gasket 776 and an unlocking rod 777. The shell 771 is provided with a blind hole 771-1, the bottom of the blind hole 771-1 is bowl-shaped, and the sealing bolt 773 closes the blind hole 771-1; the moving rod 772 is inserted into the blind hole 771-1 from the sealing bolt 773 and passes through the bottom of the blind hole 771-1. The blind hole 771-1 is provided with a spring 774 and steel balls 775 distributed around the moving rod 772. The spring 774 pushes the steel balls 775 onto the inclined surface at the bottom of the blind hole 771-1, and the steel balls 775 are squeezed between the inclined surface at the bottom of the blind hole 771-1 and the moving rod 772, so that the moving rod 772 can only translate in one direction.

[0067] One end of the first connecting rod 750 is fixed on the shifting rod 740 , and the other end is hinged to one end of the second connecting rod 760 . The other end of the second connecting rod 760 is hinged to the moving rod 772 .

[0068] An unlocking gasket 776 is provided at the bottom of the blind hole 771-1, and an unlocking rod 777 is provided on the unlocking gasket 776, and the unlocking rod 777 passes through the bottom of the blind hole 771-1; when the worker pushes the unlocking rod 777, the unlocking gasket 776 will push the steel ball 775 to translate and compress the spring 774. At this time, a gap appears between the steel ball 775 and the moving rod 772, and the one-way locking function of the moving rod 772 is released.

[0069] The production method of recycled aggregate geopolymer concrete beams in this embodiment comprises the following steps:

[0070] Step 1: Figure 8 As shown, the I-beam 100 is placed horizontally, and the web of the I-beam 100 is in a horizontal posture;

[0071] Step 2: If Figure 8 As shown, a steel frame 610 is placed at each end of the I-beam 100, and the middle frame plate 620 is directly inserted into the first sleeve 613 of the end frame plate 612 of one of the steel frames 610 by using the second sleeve 621;

[0072] Step 3: If Figure 8 As shown, the two ends of the horizontal steel bar 300 are respectively inserted into the steel bar frame 610 at the two ends of the I-beam 100, and during this process, the middle frame plate 620 is also sleeved on the horizontal steel bar 300;

[0073] Step 4: Fig. 9 As shown, the pad 630 is horizontally placed in the middle of the I-beam 100, the middle frame plate 620 is also translated to the middle position, and then the end frame plate 612 of the steel frame 610 is lowered until the middle frame plate 620 falls on the pad 630; then, one steel frame 610 is removed to make room for one end of the horizontal steel bar 300;

[0074] Step 5: Fig. 9 As shown, a set number of grids 200 are sequentially inserted into the horizontal steel bars 300;

[0075] Step 6: Fig.10 As shown, the removed steel bar frame 610 is reinstalled;

[0076] Step 7: Fig.10 As shown, the pad 630 is removed, the middle frame plate 620 in the middle position is pushed to the edge, and the spacing of all the grids 200 on the horizontal steel bars 300 is adjusted to meet the requirements of the drawing;

[0077] Step 8: Fig.11 As shown, the end frame plate 612 of the steel frame 610 is lowered again until all the grids 200 fall onto the web of the I-beam 100, and the positions of all the grids 210 of the first type are fine-tuned so that all the grids 210 of the first type are aligned, and then the first steel member 400 is installed and welded so that all the grids 210 of the first type are fixed on the web of the I-beam 100;

[0078] Step 9: insert the second steel member 500 from one end of the second type of grid 220 between the second type of grid 220 and the web of the I-beam 100, the second steel member 500 lifts up the second type of grid 220 so that the second type of grid 220 is misaligned with the first type of grid 210 and clamps the horizontal steel bar 300, and then welds the second steel member 500 to the web of the I-beam 100;

[0079] Step 10: After all horizontal reinforcements 300 and grids 200 are installed, pour the recycled aggregate geopolymer concrete.

[0080] In the above step 9, the second auxiliary component 700 is required to install the second steel member 500. The specific steps are as follows:

[0081] Step 9-1: If Fig.12 As shown, the second auxiliary component 700 is fixed to the wing plate of the I-beam 100 by using the slot 711 at the bottom of the housing 710, and at this time, the bottom of the lever 740 is aligned with the second steel member 500;

[0082] Step 9-2: If Fig.14 As shown, the worker pulls the lever 740 clockwise, and the lever 740 pushes the second steel member 500 to be inserted between the second type of grid 220 and the web of the I-beam 100, and the second steel member 500 lifts the second type of grid 220 so that the second type of grid 220 is misaligned with the first type of grid 210 and clamps the horizontal steel bar 300; Fig.15 As shown, when the worker pulls the lever 740 clockwise, the rotating sleeve 730 drives the moving rod 772 to translate to the left through the first connecting rod 750 and the second connecting rod 760; at this time, since the steel ball 775 is squeezed between the bottom inclined surface of the blind hole 771-1 and the moving rod 772, the moving rod 772 is in a one-way locking state, that is, the moving rod 772 can only move to the left and cannot move to the right; therefore, after the worker pulls the lever 740 clockwise, the lever 740 can be released, and the lever 740 can still stay in the current position;

[0083] Step 9-3: welding the second steel member 500 to the web of the I-beam 100;

[0084] Step 9-4: Push the unlocking rod 777 to the left, and the unlocking gasket 776 moves to the left. The unlocking gasket 776 pushes the steel ball 775 to translate to the left and compresses the spring 774. At this time, a gap appears between the steel ball 775 and the moving rod 772, and the one-way locking function of the moving rod 772 is released, that is, the moving rod 772 can move freely to the right; then the worker pulls the lever 740 counterclockwise to reset the lever 740 to the position as shown in the figure. Fig.13 Status shown.

[0085] The recycled aggregate geopolymer concrete beam of this embodiment uses recycled aggregate geopolymer concrete instead of traditional silicate concrete, reducing the consumption of traditional cement; using FRP grid 200 as the inner stirrup of the beam can not only ensure the mechanical properties of the recycled aggregate geopolymer concrete beam, but also reduce the use of steel, so that the recycled aggregate geopolymer concrete beam of this embodiment has multiple advantages of environmental protection, energy saving and low cost.

[0086] Although the embodiments of the present invention are described in the specification, these embodiments are only for reference and should not limit the protection scope of the present invention. Various omissions, substitutions and changes within the scope of the present invention should be included in the protection scope of the present invention.

Claims

1. A recycled aggregate geopolymer concrete beam, characterized in that: Includes I-beams, grating, horizontal reinforcement and concrete; There are multiple grids, which are arranged on both sides of the web of the I-beam and along the length direction of the I-beam, and the horizontal steel bars pass through the small grids of the grids; The concrete is poured on both sides of the web of the I-beam, and the concrete is recycled aggregate geopolymer concrete; The material of the grid is fiber composite reinforced material.

2. The recycled aggregate geopolymer concrete beam according to claim 1, characterized in that: The grilles are divided into Class I grilles and Class II grilles according to their positions on the I-beam, and the Class I grilles and Class II grilles are arranged alternately along the length direction of the I-beam; the Class I grilles and Class II grilles are staggered so that an inner corner of a small grid of the Class I grille and an inner corner of a small grid of the Class II grille jointly clamp the horizontal steel bars.

3. The recycled aggregate geopolymer concrete beam according to claim 2, characterized in that: It also includes a first steel member, and the type of grille is fixed to the web of the I-beam by the first steel member. The first steel member includes an angle steel and an insert block arranged on the angle steel. The shape of the insert block matches the shape of the small grid of the grille. The insert block is inserted into the small grid of the type of grille, and the angle steel is welded to the web of the I-beam.

4. The recycled aggregate geopolymer concrete beam according to claim 3, characterized in that: It also includes a second steel member, which is wedge-shaped and inserted between the second type of grille and the web of the I-beam from one end of the second type of grille. The second steel member lifts the second type of grille so that the second type of grille is misaligned with the first type of grille, and the second steel member is welded to the web of the I-beam.

5. A method for producing a recycled aggregate geopolymer concrete beam as claimed in claim 4, characterized in that: producing a recycled aggregate geopolymer concrete beam using a first auxiliary assembly; The first auxiliary component includes a steel bar frame, an intermediate frame plate and a pad, the steel bar frame includes a lifting rod and an end frame plate installed on the lifting rod, the surface of the end frame plate is provided with a first sleeve for inserting the end of the horizontal steel bar, and the surface of the intermediate frame plate is provided with a through hole for the horizontal steel bar to pass through; The production method of the recycled aggregate geopolymer concrete beam specifically comprises the following steps: Step 1: Place the I-beam horizontally, with the web of the I-beam in a horizontal position; Step 2: Place a steel frame at each end of the I-beam; Step 3: Put the middle frame plate on the horizontal steel bar, and insert the two ends of the horizontal steel bar into the steel bar frames at both ends of the I-beam; Step 4: Place the pad horizontally in the middle of the I-beam, and then lower the end racks of the steel frame until the middle rack falls on the pad; then remove one steel frame; Step 5: Insert the set number of grilles into the horizontal steel bars in sequence; Step 6: Reinstall the removed steel bars; Step 7: Remove the pad and adjust the spacing of all grilles on the horizontal reinforcement to meet the requirements of the drawing; Step 8: Lower the end frame plate of the steel frame again until all the grilles fall on the web of the I-beam, and then install and weld the first steel piece so that all the first-class grilles are fixed on the web of the I-beam; Step 9: Insert the second steel piece from one end of the second type of grille between the second type of grille and the web of the I-beam. The second steel piece lifts up the second type of grille so that the second type of grille is misaligned with the first type of grille and clamps the horizontal steel bars. Then, weld the second steel piece to the web of the I-beam. Step 10: After all horizontal reinforcement and gratings are installed, pour the recycled aggregate geopolymer concrete.

6. The method for producing recycled aggregate geopolymer concrete beams according to claim 5, characterized in that: A second sleeve is provided at the through hole of the middle frame plate, and the second sleeve can cover the first sleeve.

7. The method for producing recycled aggregate geopolymer concrete beams according to claim 5, characterized in that: In step 8, the positions of all the grids of the first type are fine-tuned so that all the grids of the first type are aligned.

8. The method for producing recycled aggregate geopolymer concrete beams according to claim 5, characterized in that: Using a second auxiliary component in step 9; The second auxiliary component includes a housing, a central axis, a rotating sleeve and a lever, the bottom of the housing is provided with a slot that can be inserted into the wing plate of the I-beam, the central axis is installed in the housing, the rotating sleeve is sleeved on the central axis, and the lever is fixed on the rotating sleeve; The bottom of the lever is aligned with the second steel member. In step 9, the worker pulls the lever, and the lever pushes the second steel member to be inserted between the second type grid and the web of the I-beam.

9. The method for producing recycled aggregate geopolymer concrete beams according to claim 8, characterized in that: The second auxiliary assembly also includes a first connecting rod, a second connecting rod and a non-return device; The one-way device comprises a housing, a moving rod, a sealing bolt, a spring and a steel ball. The housing is provided with a blind hole, the bottom of which is bowl-shaped, and the sealing bolt closes the blind hole. The moving rod is inserted into the blind hole through the sealing bolt and passes through the bottom of the blind hole. The blind hole is provided with a spring and steel balls distributed around the moving rod, and the spring pushes the steel balls onto the inclined surface at the bottom of the blind hole. One end of the first connecting rod is fixed on the shifting rod, and the other end is hinged to one end of the second connecting rod, and the other end of the second connecting rod is hinged to the moving rod.

10. The method for producing recycled aggregate geopolymer concrete beams according to claim 9, characterized in that: An unlocking gasket is arranged at the bottom of the blind hole, an unlocking rod is arranged on the unlocking gasket, and the unlocking rod passes through the bottom of the blind hole.

Images