RCA recycled concrete prefabricated brick blank film and installation and construction method thereof

Abstract

The invention discloses an RCA recycled concrete prefabricated brick mold and a mounting construction method thereof, the RCA recycled concrete prefabricated brick mold comprises a mold main body, the two sides of the mold main body are respectively provided with a tenon-and-mortise raised head and a tenon-and-mortise groove, and the other two sides of the mold main body are respectively provided with a plurality of reserved hollow holes; vertical shallow grooves are formed in the front face and the back face of the tire film body respectively and are close to the edges of the two sides. A plurality of transverse shallow grooves are formed in the positions, close to the tenon-and-mortise protruding head and the tenon-and-mortise groove, of the two sides of the tire mold body respectively, the two ends of each transverse shallow groove communicate with the corresponding vertical shallow groove, the transverse shallow grooves are used for being connected with steel clamp connecting pieces, and the steel clamp connecting pieces are connected with a cushion layer and the tire mold body or connected with the adjacent tire mold body. According to the RCA recycled concrete prefabricated brick mould, the connecting structure and the connecting mode of the RCA recycled concrete prefabricated brick mould are improved, so that the RCA recycled concrete prefabricated brick mould can be quickly assembled, manpower and material resources are saved, the strength is higher than that of a brick masonry mould, the process construction efficiency is higher, and the template quality is remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to an RCA recycled concrete prefabricated brick membrane and an installation construction method thereof. Background Art

[0002] With the continuous advancement of urbanization, building demolition inevitably generates a large amount of construction waste. The landfill of construction waste will occupy a large amount of land resources and may pollute the soil and groundwater. If it is piled in the open air, it will affect the appearance of the city and may also cause secondary pollution such as dust under natural effects such as wind and rain.

[0003] At present, during the construction of basement foundations in the construction industry, all foundation pit structures such as caps, ground beams and water collection wells need to be made into side formwork. In conventional traditional construction techniques, brickwork is generally used to replace conventional formwork. However, during the construction process using conventional brickwork, due to the large amount of earth excavation and backfilling, the comprehensive cost of lime sand bricks, mortar and labor is too high. In addition, if the construction encounters silty soil, preliminary treatment is required, and too many construction processes will prolong the construction period. Summary of the invention

[0004] The purpose of the present invention is to provide a RCA recycled concrete prefabricated brick membrane and an installation construction method thereof in view of the problems existing in the prior art.

[0005] To achieve the above object, the technical solution adopted by the present invention is: A RCA recycled concrete prefabricated brick membrane comprises a membrane body, wherein two sides of the membrane body are respectively provided with a plurality of matching mortise and tenon protrusions and mortise and tenon grooves, and the other two sides of the membrane body are respectively provided with a plurality of reserved hollow openings; the front and back sides of the membrane body are respectively provided with vertical shallow grooves, and the vertical shallow grooves are arranged close to the edges of the two sides; the membrane body is respectively provided with a plurality of transverse shallow grooves on both sides near the mortise and tenon protrusions and the mortise and tenon grooves, and both ends of the transverse shallow grooves are connected to the vertical shallow grooves, and the transverse shallow grooves are used to connect steel clip connectors, and the steel clip connectors connect the cushion layer and the membrane body, or connect adjacent membrane bodies.

[0006] The RCA recycled concrete prefabricated brick membrane improves its connection structure and connection method, so that it can be quickly assembled, saving manpower and material resources, and has higher strength than brick masonry membrane. The mortise and tenon protrusions and the mortise and tenon grooves are arranged on both sides of the membrane body, and the adjacent membrane bodies can be connected and fixed by the mortise and tenon structure, reducing the use of bolts, screws and other connecting parts, and avoiding the opening of small connection holes on the membrane body, so that the integrity of the membrane body is better.

[0007] Furthermore, the width of the mortise and tenon boss is smaller than the width of the fetal membrane body, and is arranged in the center in the width direction; the number of the mortise and tenon bosses is at least two, which are arranged at intervals up and down.

[0008] Furthermore, a plurality of mortise and tenon protrusions and / or mortise and tenon grooves are also provided on the front and back sides of the fetal membrane body, so as to realize the horizontal and vertical connection of the prefabricated brick fetal membrane.

[0009] Furthermore, the steel clip connector includes a plurality of single U-shaped steel clips, which are clamped on the end side of the fetal membrane body where the reserved hollow opening is provided. The single U-shaped steel clip is also provided with a connecting hole, which is connected to the cushion layer through an expansion bolt.

[0010] Furthermore, the steel card connector includes a plurality of double-layer U-shaped steel cards, the double-layer U-shaped steel cards are connected to the transverse shallow groove, and the double-layer U-shaped steel cards have U-shaped bayonet openings in two directions for simultaneously connecting the adjacent fetal membrane bodies. The double-layer U-shaped steel card can simultaneously connect two adjacent fetal membrane bodies, and the double-layer U-shaped steel card is an integrally formed structure, and the integrity of the entire strip after connection is also better. The double-layer U-shaped steel card is arranged above the mortise and tenon structure, that is, the transverse shallow groove is located above the mortise and tenon protrusion or the mortise and tenon groove.

[0011] Furthermore, the double-layer U-shaped steel clip includes a common connecting plate, and a pair of clamping arms are respectively provided at the edges of the two opposite sides of the common connecting plate, and the clamping arms are respectively arranged at the upper and lower parts of the two sides to form a first U-shaped clamping slot on the left and a second U-shaped clamping slot on the right; the common connecting plate is arranged in a pair of the horizontal shallow grooves of the two adjacent spliced ​​fetal membrane bodies, and the clamping arms are located in the vertical shallow grooves of the two adjacent fetal membrane bodies.

[0012] Furthermore, the thickness of the clamping arm does not exceed 1 / 2 of the depth of the vertical shallow groove, and the thickness of the common connecting plate is greater than the depth of a single horizontal shallow groove and is not greater than the sum of the depths of a pair of horizontal shallow grooves.

[0013] Furthermore, the outer surface of the steel clamp connector is also provided with connecting teeth, and the outer side surface of the clamp arm is also provided with a micro-connector, which is used to connect the anti-cracking net. The anti-cracking net is located in the vertical shallow groove, and the vertical shallow groove is also filled with anti-cracking mortar.

[0014] A method for installing and constructing a prefabricated RCA recycled concrete brick membrane, the method comprising the following steps: According to the design drawings, the numbered finished membrane bodies are hoisted to the corresponding construction sites for assembly; the single U-shaped steel card is installed along the control line, the membrane body is cut in advance, and the bottom of the cut membrane body is painted with cement mortar and placed in the single U-shaped steel card; when installing the horizontal prefabricated brick membrane, the mortise and tenon protrusions and mortise and tenon grooves of the membrane body are painted with cement mortar respectively, and then the double-layer U-shaped steel card is installed on one side of one membrane body, and the other membrane body is aligned with the mortise and tenon protrusions and mortise and tenon grooves horizontally for chiseling; for the horizontal and vertical intersection of the prefabricated brick membrane, the corresponding numbered membrane body is placed in the corresponding position, and the cement mortise and tenon protrusions and mortise and tenon grooves are painted with cement mortar, and the side and front of the membrane body are chiseled according to the mortise and tenon protrusions and mortise and tenon grooves; After the prefabricated brick membrane of the bottom layer is installed, the operator will review the elevation and position to see if there is any deviation. If there is any deviation, it will be adjusted in time. After confirmation, cement mortar will be evenly applied on the top of the membrane body, and the subsequent prefabricated brick membrane installation will continue to be installed to the designed elevation. In order to prevent the upper plate from squeezing the cement mortar too much, wooden wedges can be used to temporarily support the upper plate before the cement mortar has formed strength. After the prefabricated brick membrane is installed, the anti-cracking net and anti-cracking mortar are used to paint the joints of the main body of the membrane, and cement mortar is used to make arc angles at the corners; Before backfilling the sides of structures such as the pedestal and ground beam, wood and steel pipes are used to form supports. During the backfilling process, the earth is backfilled in layers and steps, and compacted. After the backfilling is completed, the wood and steel pipes can be removed and used in rotation after the anti-cracking mortar and the cement mortar are completely solidified.

[0015] Furthermore, when setting the single U-shaped steel card, the single U-shaped steel card is connected and fixed to the cushion layer by bolts, or is connected and fixed to the top of the fetal membrane main body, or is connected and fixed to the front of the fetal membrane main body; when setting the double-layer U-shaped steel card, the cement mortar is applied to the transverse shallow groove, and then the common connecting plate of the double-layer U-shaped steel card is installed in the transverse shallow groove, and after connecting the adjacent fetal membrane main bodies, the anti-cracking net is set along the vertical shallow groove, and the anti-cracking net covers the joints between the adjacent fetal membrane main bodies and is pre-connected to the double-layer U-shaped steel card, and then the subsequent anti-cracking mortar is applied.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The RCA recycled concrete prefabricated brick membrane improves its connection structure and connection method, so that it can be quickly assembled, saving manpower and material resources, and reducing the plastering process before waterproofing. In addition, the strength of the prefabricated brick membrane is higher than that of the brick masonry membrane. From the perspective of the overall cost, it is also significantly lower than the traditional brick masonry membrane method; 2. Compared with the traditional GRC prefabricated board and masonry brick mold construction method, the RCA recycled concrete prefabricated brick mold construction method more effectively improves the overall rigidity, strength, and stability of the template, and the construction efficiency is more efficient in terms of process, and the quality of the template is significantly improved. At the same time, it provides a solution to the dual carbon problem and improves the resource utilization efficiency of construction waste; 3. The mortise and tenon protrusions and the mortise and tenon grooves are arranged on both sides of the membrane body, and the adjacent membrane bodies can be connected and fixed by the mortise and tenon structure, reducing the use of bolts, screws and other connectors; 4. The single U-shaped steel clip is fixedly connected to the cushion layer by expansion bolts, and the membrane body is directly embedded in the single U-shaped steel clip to achieve tire The membrane body can be quickly positioned and installed efficiently, and the new connection method of the single U-shaped steel card can improve the overall rigidity and strength of the formwork; 5. The double-layer U-shaped steel card can simultaneously connect two adjacent membrane bodies, and the double-layer U-shaped steel card is an integrated structure, and the integrity of the entire strip is better after connection; 5. The horizontal shallow groove and the vertical shallow groove can accommodate the steel card connector, reduce the assembly gap between adjacent membrane bodies, and cooperate with the anti-crack net and anti-crack mortar to make the membrane body more tightly connected, which is beneficial to improve the overall connection strength and stability, and can also reduce the difficulty of subsequent gap processing, and reduce the probability of cracks and leakage in the later use of the prefabricated brick membrane. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional schematic diagram of a prefabricated RCA recycled concrete brick membrane according to the present invention; Figure 2 This is a schematic diagram of the front structure of a RCA recycled concrete prefabricated brick membrane of the present invention; Figure 3 It is a structural schematic diagram of a single U-shaped steel clip of the present invention; Figure 4 It is a schematic diagram of the line structure of the double-layer U-shaped steel card of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the double-layer U-shaped steel card of the present invention; Figure 6 It is a schematic diagram of the structure of the adjacent fetal membrane main body splicing of the present invention; Figure 7 It is a schematic diagram of the frontal mesh hanging of adjacent fetal membrane bodies spliced ​​together according to the present invention; Figure 8 It is a schematic diagram of setting cement mortar on the splicing end surface of the fetal membrane body of the present invention; Fig. 9 It is a schematic diagram of arranging a double-layer U-shaped steel clip on the splicing end surface of the fetal membrane body of the present invention; Fig.10 It is a schematic diagram of the connection of double-layer U-shaped steel clips when the fetal membrane main body is spliced ​​in the present invention; Fig.11 It is a schematic diagram of the structure after adjacent fetal membrane bodies are spliced ​​together in the present invention; Fig.12 This is a schematic diagram of a mortise and tenon structure provided on the front side of the fetal membrane body of the present invention; Fig.13 It is a schematic diagram of the structure of the horizontal and vertical fetal membrane main body splicing of the present invention; In the figure: 1. fetal membrane body; 2. mortise and tenon protrusions; 3. mortise and tenon grooves; 4. reserved hollow opening; 5. vertical shallow grooves; 6. horizontal shallow grooves; 7. single U-shaped steel clip; 8. connecting holes; 9. double-layer U-shaped steel clip; 901. common connecting plate; 902. connecting arm; 903. first U-shaped clip; 904. second U-shaped clip; 10. connecting teeth; 11. micro-connectors; 12. anti-crack nets; 13. cement mortar; 14. anti-crack mortar. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Example 1

[0020] like Figure 1 and Figure 2As shown, a RCA recycled concrete prefabricated brick membrane comprises a membrane body 1, and a plurality of matching mortise and tenon protrusions 2 and mortise and tenon grooves 3 are respectively arranged on both sides of the membrane body 1, and a plurality of reserved hollow openings 4 are respectively arranged on the other two sides of the membrane body 1; vertical shallow grooves 5 are respectively arranged on the front and back sides of the membrane body 1, and the vertical shallow grooves 5 are arranged close to the edges of both sides; the membrane body 1 is respectively provided with a plurality of transverse shallow grooves 6 on both sides near the mortise and tenon protrusions 2 and the mortise and tenon grooves 3, and both ends of the transverse shallow grooves 6 are connected to the vertical shallow grooves 5, and the transverse shallow grooves 6 are used to connect steel card connectors, which connect the cushion layer and the membrane body, or connect adjacent membrane bodies.

[0021] The RCA recycled concrete prefabricated brick membrane improves its connection structure and connection method, so that it can be quickly assembled, saving manpower and material resources, and reducing the plastering process before waterproofing. In addition, the strength of the prefabricated brick membrane is higher than that of the brick masonry membrane. From the perspective of the overall cost, it is also significantly lower than the traditional brick masonry membrane method. In terms of project management, it can not only significantly reduce construction costs but also shorten the construction period, so that the project construction efficiency is significantly improved.

[0022] The mortise and tenon protrusions 2 and the mortise and tenon grooves 3 are arranged on both sides of the fetal membrane main body 1, and the adjacent fetal membrane main bodies can be connected and fixed through the mortise and tenon structure, which reduces the use of fasteners such as bolts and screws, and also avoids opening small connecting holes on the fetal membrane main body, thereby improving the integrity of the fetal membrane main body.

[0023] The setting of the transverse shallow groove 6 can accommodate the common part of the steel card connector. When the steel card connector is connected to the fetal membrane main body, it can reduce the assembly gap between adjacent fetal membrane main bodies 1, making the fetal membrane main body connected more tightly, which is beneficial to improving the overall connection strength and stability, and can also reduce the difficulty of subsequent gap processing, reducing the probability of cracks and leakage in the later use of the prefabricated brick fetal membrane.

[0024] The setting of the vertical shallow groove 5 can accommodate the clamping arm, anti-cracking net and anti-cracking mortar of the steel clamp connector. On the one hand, it can prevent the steel clamp connector from protruding from the front and back sides of the fetal membrane main body after being connected to the fetal membrane main body, so that the fetal membrane main body has no obvious protruding structure near the assembly gap. On the other hand, it can be more convenient to set the anti-cracking net and apply the anti-cracking mortar, without grinding the fetal membrane main body on both sides of the gap, and can also make the applied anti-cracking mortar flush with the front and back sides of the fetal membrane main body, making the entire splicing structure more beautiful and the outer surface smoother, which is beneficial to subsequent construction. Moreover, such treatment can improve the anti-cracking and anti-leakage performance at the gap.

[0025] Furthermore, the width of the mortise and tenon boss 2 is smaller than the width of the fetal membrane main body 1, and is arranged centrally in the width direction, so that the assembled fetal membrane main body 1 has no exposed mortise and tenon structure, and has a better aesthetic appearance; the mortise and tenon boss 2 is at least two arranged at intervals up and down to ensure the strength and stability of the mortise and tenon connection.

[0026] The mortise and tenon boss 2 is a rectangular, trapezoidal, wedge-shaped or dovetail-shaped structure, and the structure of the mortise and tenon groove 3 corresponds to the structure of the mortise and tenon boss.

[0027] Furthermore, the front and back sides of the membrane body 1 are also provided with a plurality of mortise and tenon protrusions 2 and / or mortise and tenon grooves 3. Through such a setting, another membrane body can be connected to the front and back sides of the membrane body 1 to realize the horizontal and vertical connection structure of the prefabricated brick membrane. In this case, a smaller horizontal shallow groove can also be set on the front or back side of the membrane body to accommodate a single U-shaped steel card, so that the single U-shaped steel card is embedded and connected to one membrane body, and then another membrane body is clamped by a clamping arm (the edge of the membrane body is provided with the vertical shallow groove, which can accommodate the clamping arm), so that the membrane body of the vertical and horizontal connection structure is also more stable and reliable, and the connected single U-shaped steel card can be hidden so that it is not exposed. For the intersection of the horizontal and vertical membrane bodies, a groove membrane body with a mortise and tenon structure in the middle is specially made to avoid the conventional form of setting angle iron fixation. Through this form of connection, the construction of T-shaped and L-shaped parts is more efficient, and the overall stability of the template is effectively improved.

[0028] Further, such as Figure 3 As shown, the steel card connector includes a plurality of single U-shaped steel cards 7, and the single U-shaped steel cards 7 are clamped on the end side of the fetal membrane body 1 where the reserved hollow opening 4 is provided. The single U-shaped steel card 7 is also provided with a connecting hole 8, and the connecting hole 8 is connected to the cushion layer through an expansion bolt.

[0029] The single U-shaped steel card 7 is fixedly connected to the cushion layer by expansion bolts, and the fetal membrane body is directly embedded in the single U-shaped steel card 7, so as to realize the rapid positioning and installation efficiency of the fetal membrane body. At the same time, the new connection method of the single U-shaped steel card 7 is used to improve the overall rigidity and strength of the template.

[0030] like Figure 4 As shown, the steel card connector also includes a plurality of double-layer U-shaped steel cards 9, and the double-layer U-shaped steel cards 9 are connected to the transverse shallow groove 6. The double-layer U-shaped steel cards 9 have U-shaped snap-ons in two directions for simultaneously connecting adjacent fetal membrane bodies 1.

[0031] The double-layer U-shaped steel clip 9 can simultaneously connect two adjacent fetal membrane bodies, and the double-layer U-shaped steel clip 9 is an integrally formed structure, and the integrity of the entire strip after connection is also better. The double-layer U-shaped steel clip is connected into a whole through the mortise and tenon structure and the double-layer U-shaped steel clip, which can be quickly positioned and embedded.

[0032] Further, combined with Figure 5 As shown, the double-layer U-shaped steel clip 9 includes a common connecting plate 901, and a pair of clamping arms 902 are respectively provided at the edges of the two opposite sides of the common connecting plate 901, and the clamping arms 902 are respectively arranged at the upper and lower parts of the two sides to form a first U-shaped clamping socket 903 on the left and a second U-shaped clamping socket 904 on the right; the common connecting plate 901 is arranged in a pair of the horizontal shallow grooves 6 of the two adjacent spliced ​​fetal membrane bodies 1, and the clamping arms 902 are located in the vertical shallow grooves 5 of the two adjacent fetal membrane bodies 1.

[0033] The common connecting plate 901 can act on adjacent fetal membrane bodies 1 at the same time. The first U-shaped snap-in 903 and the second U-shaped snap-in 904 are just arranged in two opposite directions, so that the two pairs of clamping arms 902 can clamp the adjacent fetal membrane bodies 1 respectively; at the same time, the common connecting plate can be simultaneously accommodated in the horizontal shallow grooves of adjacent fetal membrane bodies.

[0034] Furthermore, the thickness of the clamping arm 902 does not exceed 1 / 3 of the depth of the vertical shallow groove 5, that is, the clamping arm 902 will not exceed the surface of the fetal membrane body 1 after connection, which is more concealed, and at the same time, space is left for setting the anti-cracking net and anti-cracking mortar. The thickness of the common connecting plate 901 is greater than the depth of a single transverse shallow groove 6, and is not greater than the sum of the depths of a pair of transverse shallow grooves 6, so that the common connecting plate 901 can be supported in the corresponding pair of transverse shallow grooves 6 at the same time, and can also be accommodated therein, so that there is no gap between adjacent fetal membrane bodies 1 due to the provision of the steel clamp connector, so that the adjacent fetal membrane bodies 1 are assembled more tightly and the gap is smaller. When the cement mortar is coated on the side of the fetal membrane body during assembly, there will be basically no gap.

[0035] Furthermore, the outer surface of the steel clamp connector is also provided with connecting teeth 10, and the outer side surface of the clamp arm 902 is also provided with a micro-connector 11, and the micro-connector 11 is used to connect the anti-cracking net, and the anti-cracking net is located in the vertical shallow groove 5, and the vertical shallow groove 5 is also filled with anti-cracking mortar.

[0036] The setting of the connecting teeth 10 makes the outer surface of the steel card connector, that is, the outer surface of the card arm 902 accommodated in the vertical shallow groove, have uneven protrusions, so that it can better combine with cement mortar, with higher bonding strength, and avoid roughening treatment at the construction site.

[0037] In some embodiments, the micro-connector 11 is a small connecting column or connecting hook, which can be connected to the anti-crack net, which is conducive to the laying of the anti-crack net, and the laid anti-crack net is not easy to fall off. The micro-connector 11 can also be a magnet embedded in the clamping arm, which absorbs the anti-crack net by magnetic attraction. Example 2

[0038] A method for installing and constructing a prefabricated brick membrane of RCA recycled concrete, combining body 6- Fig.13 As shown, the installation construction method includes the following steps: construction preparation, cushion construction, steel clip connector installation, membrane body installation, gap processing and corner construction, prefabricated brick membrane reinforcement and backfilling.

[0039] During the construction preparation process, the prefabricated brick membranes are processed and formed in the factory according to the size and quantity of the components designed in the drawings. The strength, size and other parameters of the prefabricated brick membranes are tested before leaving the factory. The structures that meet the requirements are numbered and towed to the designated stacking point on the construction site. Prepare single U-shaped steel cards 7, double-layer U-shaped steel cards 9, expansion bolts, anti-crack nets 12, anti-crack mortar 14, construction glue, P.O32.5 cement and other materials and corresponding tools, and conduct safety technical briefings before personnel enter the site.

[0040] A total station is used to lay out the pedestal and ground beam, white lines are spread along the excavation line, and level points are set outside the excavation line of the pedestal and ground beam to control the excavation depth during the excavation process; the excavation is carried out by manual and mechanical means to slope the excavation, and the cushion layer is poured after the excavation reaches the elevation, and the installation position of the prefabricated brick membrane is reserved when pouring the cushion layer.

[0041] Use a total station to survey and design, use an ink fountain to mark the edge lines of the pedestal and ground beam, and set level points to facilitate the installation positioning and elevation control of the prefabricated brick membrane.

[0042] Construction waste generated by demolition is selected and crushed and screened to prepare prefabricated recycled concrete hollow panels, and the panels are provided with mortise and tenon structures to obtain the fetal membrane body, turning waste into treasure and meeting the requirements of low-carbon construction.

[0043] The thickness of this prefabricated brick membrane is about 100mm. It is a board shaped like a hollow floor slab. The construction waste generated by building demolition is crushed, screened, and mixed with cement, water and other materials. A small amount of steel bars are placed inside to greatly improve the flexural strength and impact resistance of the board. The spacing of about 300mm is reserved on the joint surfaces on both sides of the board and the horizontal and vertical intersection surfaces of the board. The mortise and tenon structure with a size of about 50mm*50mm is interlocked, which improves the integrity of the prefabricated brick membrane and ensures the quality requirements of the construction of an alternative brick membrane.

[0044] According to the design drawings, the numbered finished fetal membrane body 1 is hoisted to the corresponding construction site for assembly; the single U-shaped steel card 7 is installed along the control line, the fetal membrane body is cut in advance, and the construction glue and PO 32.5 cement are used to add an appropriate amount of water to stir into cement mortar 13, and the bottom of the cut fetal membrane body 1 is brushed with the cement mortar and placed in the single U-shaped steel card 7; when installing the horizontal prefabricated brick fetal membrane, the cement mortar 13 is applied to the mortise and tenon protrusions 2 and the mortise and tenon grooves 3 of the fetal membrane body 1 respectively, and then the double-layer U-shaped steel card 9 is installed on one side of a fetal membrane body 1, and the other fetal membrane body is horizontally aligned with the mortise and tenon protrusions and the mortise and tenon grooves for mosaic assembly; for the horizontal and vertical intersection prefabricated brick fetal membrane ( Fig.13 As shown), place the corresponding numbered fetal membrane body 1 at the corresponding position, apply cement mortise and tenon protrusions 2 and mortise and tenon grooves 3, set a single U-shaped steel card on the front of one of the fetal membrane bodies, and fit the other fetal membrane body into the single U-shaped steel card, and fit the side and front sides according to the mortise and tenon protrusions and mortise and tenon grooves; After the prefabricated brick membrane of the bottom layer is installed, the operator will review the elevation and position to see if there is any deviation. If there is any deviation, it will be adjusted in time. After confirmation, cement mortar will be evenly applied on the top of the membrane body, and the subsequent prefabricated brick membrane installation will continue to be installed to the designed elevation. In order to prevent the upper plate from squeezing the cement mortar too much, wooden wedges can be used to temporarily support the upper plate before the cement mortar has formed strength. After the prefabricated brick membrane is installed, the anti-cracking net and anti-cracking mortar are used to paint the joints of the membrane body, and the cement mortar is used to make arc angles at the corners, such as the corners of the membrane body that intersect vertically and horizontally, and the corners where the membrane body and the cushion layer are connected. The arc angles are smoothed to facilitate subsequent waterproofing construction; Before backfilling the sides of structures such as the pedestal and the ground beam, wood, steel pipes and other materials are used to connect and form supports. During the backfilling process, the earth is backfilled in layers and steps, and compacted. After the backfilling is completed, the wood, steel pipes and other materials can be removed and used in a turnover manner after the anti-cracking mortar and the cement mortar are completely solidified.

[0045] Compared with the traditional construction method of GRC prefabricated panels and masonry brick formwork, this RCA recycled concrete prefabricated brick formwork construction method more effectively improves the overall stiffness, strength and stability of the formwork, has higher construction efficiency and significantly improved formwork quality, and provides a solution to the dual carbon problem, thereby improving the efficiency of resource utilization of construction waste.

[0046] The use of this prefabricated brick membrane can save a lot of labor costs. If the traditional brick membrane requires 20 people to lay it continuously, this prefabricated brick membrane only needs about 8 people to install it, and it can save about half the construction period compared with the traditional brick membrane. The use of this prefabricated brick membrane only requires one hour of tower crane per day, while the use of traditional brick membrane requires frequent lifting of bricks and cement mortar, which increases the burden of mechanical use.

[0047] This prefabricated brick membrane can be processed in the factory according to the foundation deepening drawing. Each prefabricated board is numbered according to the component type, and standard boards can also be selected for on-site cutting. Special steel clip connectors and cement mortar are used to connect the prefabricated boards. The construction process is simple and easy to operate. The strength of the prefabricated brick membrane is higher than that of the brick masonry. It is not easy to produce cracks and collapse during the backfilling of the earth around the foundation pit, which can effectively improve the construction quality of the brick membrane. This prefabricated brick membrane also successfully solves the problem that traditional brick masonry brick membranes cannot be constructed on rainy days or when the groundwater level is high, thereby improving construction efficiency. It can also effectively reduce the damage of construction waste to the environment, promote the recycling of resources, and help build a resource-saving and environmentally friendly society. It can also reduce the demand for raw materials such as natural sand and gravel, save construction costs, and bring new development opportunities to related industries and promote sustainable economic development.

[0048] Furthermore, when setting the single U-shaped steel card 7, the single U-shaped steel card 7 is connected and fixed to the cushion layer by bolts, or is connected and fixed to the top of the fetal membrane main body 1, or is connected and fixed to the front of the fetal membrane main body 1; when setting the double-layer U-shaped steel card 9, the cement mortar 13 is brushed in the transverse shallow groove 6, and then the common connecting plate of the double-layer U-shaped steel card 9 is installed in the transverse shallow groove 6. After connecting the adjacent fetal membrane main bodies 1, the anti-cracking net 12 is set along the vertical shallow groove 5. The anti-cracking net 12 covers the joints between the adjacent fetal membrane main bodies 1 and is adsorbed on the double-layer U-shaped steel card 9. The anti-cracking net 12 is not easy to fall off by itself. After multiple anti-cracking nets 12 are pasted, the anti-cracking mortar 14 is brushed together; anti-cracking mortar is also set in the vertical shallow groove areas at other positions, and then cement mortar is set at the corners and rounded.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A RCA recycled concrete prefabricated brick membrane, comprising a membrane body, characterized in that: A number of matching mortise and tenon protrusions and mortise and tenon grooves are respectively arranged on both sides of the fetal membrane main body, and a number of reserved hollow openings are respectively arranged on the other two sides of the fetal membrane main body; vertical shallow grooves are respectively arranged on the front and back sides of the fetal membrane main body, and the vertical shallow grooves are arranged close to the edges of both sides; the fetal membrane main body is respectively provided with a number of transverse shallow grooves on both sides near the mortise and tenon protrusions and the mortise and tenon grooves, and the two ends of the transverse shallow grooves are connected to the vertical shallow grooves, and the transverse shallow grooves are used to connect steel card connectors, which connect the cushion layer and the fetal membrane main body, or connect adjacent fetal membrane bodies.

2. The RCA recycled concrete prefabricated brick membrane according to claim 1 is characterized in that: The width of the mortise and tenon boss is smaller than the width of the fetal membrane body, and is arranged in the center in the width direction; the number of the mortise and tenon bosses is at least two, which are arranged at intervals up and down.

3. The RCA recycled concrete prefabricated brick membrane according to claim 1 is characterized in that: A plurality of mortise and tenon protrusions and / or mortise and tenon grooves are also provided on the front and back sides of the fetal membrane body.

4. The RCA recycled concrete prefabricated brick membrane according to claim 1 is characterized in that: The steel clamp connector includes a plurality of single U-shaped steel clamps, which are clamped on the end side of the fetal membrane body where the reserved hollow opening is provided. The single U-shaped steel clamp is also provided with a connecting hole, which is connected to the cushion layer through an expansion bolt.

5. The RCA recycled concrete prefabricated brick membrane according to claim 1 is characterized in that: The steel card connector includes a plurality of double-layer U-shaped steel cards, and the double-layer U-shaped steel cards are connected to the transverse shallow groove. The double-layer U-shaped steel cards have U-shaped snap-on openings in two directions for simultaneously connecting adjacent fetal membrane bodies.

6. The RCA recycled concrete prefabricated brick membrane according to claim 5 is characterized in that: The double-layer U-shaped steel clip includes a common connecting plate, and a pair of clamping arms are respectively provided at the edges of the two opposite sides of the common connecting plate, and the clamping arms are respectively arranged at the upper and lower parts of the two sides to form a first U-shaped clamping socket on the left and a second U-shaped clamping socket on the right; the common connecting plate is arranged in a pair of the horizontal shallow grooves of the two adjacent spliced ​​fetal membrane bodies, and the clamping arms are located in the vertical shallow grooves of the two adjacent fetal membrane bodies.

7. The RCA recycled concrete prefabricated brick membrane according to claim 6 is characterized in that: The thickness of the clamping arm does not exceed 1 / 2 of the depth of the vertical shallow groove, and the thickness of the common connecting plate is greater than the depth of a single horizontal shallow groove and is not greater than the sum of the depths of a pair of horizontal shallow grooves.

8. The RCA recycled concrete prefabricated brick membrane according to claim 6 is characterized in that: The outer surface of the steel clamp connector is also provided with connecting teeth, and the outer side surface of the clamp arm is also provided with a micro-connector, which is used to connect the anti-cracking net. The anti-cracking net is located in the vertical shallow groove, and the vertical shallow groove is also filled with anti-cracking mortar.

9. A method for installing and constructing the RCA recycled concrete prefabricated brick membrane according to any one of claims 1 to 8, characterized in that: The installation construction method comprises the following steps: According to the design drawings, the numbered finished membrane bodies are hoisted to the corresponding construction sites for assembly; the single U-shaped steel card is installed along the control line, the membrane body is cut in advance, and the bottom of the cut membrane body is painted with cement mortar and placed in the single U-shaped steel card; when installing the horizontal prefabricated brick membrane, the mortise and tenon protrusions and mortise and tenon grooves of the membrane body are painted with cement mortar respectively, and then the double-layer U-shaped steel card is installed on one side of one membrane body, and the other membrane body is aligned with the mortise and tenon protrusions and mortise and tenon grooves horizontally for chiseling; for the horizontal and vertical intersection of the prefabricated brick membrane, the corresponding numbered membrane body is placed in the corresponding position, and the cement mortise and tenon protrusions and mortise and tenon grooves are painted with cement mortar, and the side and front of the membrane body are chiseled according to the mortise and tenon protrusions and mortise and tenon grooves; After the prefabricated brick membrane of the bottom layer is installed, the operator will review the elevation and position to see if there is any deviation. If there is any deviation, it will be adjusted in time. After confirmation, cement mortar will be evenly applied on the top of the membrane body, and the subsequent prefabricated brick membrane will be installed to the designed elevation. After the prefabricated brick membrane is installed, the anti-cracking net and anti-cracking mortar are used to paint the joints of the main body of the membrane, and cement mortar is used to make arc angles at the corners; Before backfilling the sides of structures such as the pedestal and ground beam, wood and steel pipes are used to form supports. During the backfilling process, the earth is backfilled in layers and steps, and compacted. After the backfilling is completed, the wood and steel pipes can be removed and used in rotation after the anti-cracking mortar and the cement mortar are completely solidified.

10. The installation construction method of the RCA recycled concrete prefabricated brick membrane according to claim 9 is characterized in that: When setting the single U-shaped steel card, the single U-shaped steel card is connected and fixed to the cushion layer by bolts, or is connected and fixed to the top of the fetal membrane main body, or is connected and fixed to the front of the fetal membrane main body; when setting the double-layer U-shaped steel card, the cement mortar is brushed in the horizontal shallow groove, and then the common connecting plate of the double-layer U-shaped steel card is installed in the horizontal shallow groove. After connecting the adjacent fetal membrane main bodies, the anti-cracking net is set along the vertical shallow groove. The anti-cracking net covers the joints between the adjacent fetal membrane main bodies and is pre-connected to the double-layer U-shaped steel card, and then the subsequent anti-cracking mortar is applied.

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