Construction method of ALC wallboard and structural beam assembly without grouting

Abstract

This invention relates to the field of building construction technology and discloses a construction method for assembling ALC wall panels and structural beams without grouting. The method includes cleaning and measuring the base layer, installing wall panel connectors and elastic buffer strips, applying adhesive mortar to the top of the ALC wall panels, installing the ALC wall panels, adjusting vertical flatness, splicing the wall panels, and treating the joints and bottom seams. Through cleaning and measuring the base layer, the installation edge lines and control lines are marked out according to the detailed design drawings, and the building lines are marked out on the concrete wall columns as a reference to ensure the accuracy of the wall panel installation position. At the same time, cleaning equipment is used to remove debris and dust from the ground, making the base layer flat and dry, avoiding installation deviations caused by unclean or uneven base layers, improving construction efficiency and overall wall alignment.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a construction method for assembling ALC wall panels and structural beams without grouting. Background Technology

[0002] ALC wall panels, or autoclaved lightweight partition walls, are a new type of building material made primarily of fly ash, cement, and lime, reinforced with treated steel bars, and cured under high pressure with steam. They are widely used in the interior and exterior walls of various concrete frame structures.

[0003] Currently, due to the multiple steps involved in the traditional ALC wall panel installation process, the traditional grouting method cannot control the gap treatment between the wall panel and the structural beam in real time when assembling the ALC wall panel with the structural beam. If the wall panel installation position is deviated or the gap is not filled tightly, it may cause wall cracking, reduced waterproof performance and insufficient structural stability, and cannot guarantee the overall quality and long-term durability of the wall.

[0004] Therefore, a construction method for assembling ALC wall panels and structural beams without grouting is proposed to solve the above problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a construction method for assembling ALC wall panels and structural beams without grouting, which solves the problems of wall cracking, reduced waterproofing performance, and insufficient structural stability mentioned in the background art, thus failing to guarantee the overall quality and long-term durability of the wall.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a construction method for assembling ALC wall panels and structural beams without grouting, comprising the following steps: Step 1: Base cleaning and measurement layout. Based on the detailed design drawings and construction control lines of the ALC wall panel, clean the ground and mark the installation edge lines and control lines. At the same time, mark the 1m line on the concrete wall column as a reference. Step 2: Install wall panel connectors and elastic buffer strips. Install an elastic buffer strip in the center of the top of each ALC wall panel. The elastic buffer strip is 40-60mm wide and 500-700mm long. Fix it to the bottom of the structural beam with nails with a length of 20-30mm. Install wall panel connectors, including pipe clamps and steel clamps. Each panel has no less than 2 fixing points. Step 3: Apply adhesive mortar to the top of the ALC wall panel. Apply the special adhesive mortar evenly to the top surface of the panel, with a thickness of 3-5mm. Step 4: Install ALC wall panels. Use installation equipment to erect the wall panels and adjust them to match the ground line. Nail the wall panels so that mortar is squeezed out from the top of the panels. Control the pressure at 5-10kN and fix them with wooden wedges at the bottom. Step 5: Adjust the vertical flatness. Use a laser level and a 2m straightedge to check that the verticality deviation is no more than 5mm / m and the flatness deviation is no more than 3mm. After correcting by tapping the wooden wedges, fix the reinforcement. Step 6: Wall panel splicing. Apply adhesive material to the top surface and tongue and groove of the subsequent wall panels. The adhesive material should be 2-3mm thick. Place a 20-30mm wide rubber strip between the tongue and groove. Splice and press tightly with a compression pressure of 3-5kPa. Step 7: Treatment of joints and bottom joints. Fill the joints with special adhesive mortar, with a thickness of 5-10mm. Remove the wooden wedges 3-5 days after installation and fill them with mortar again to smooth them out.

[0007] Preferably, step one, the base cleaning and measurement layout, includes: Use cleaning equipment to remove debris and dust from the ground, making the base layer flat and dry, and then lay out the lines. The accuracy of the lines should not exceed ±2mm. The 1m line of the building should be clearly marked on the wall and column as the installation reference.

[0008] Preferably, the installation of the wall panel connectors in step two includes: The spacing between pipe clamps shall not exceed 1m, and the initial clamp height from the floor slab shall be 250-350mm. Steel clamps shall be intermittently arranged at the joint between the wall panel and the main wall column, with a spacing not exceeding 1m. The installation sequence proceeds from one end of the main structure to the other, or from the reinforcing plate to both sides. If there is a doorway, the installation proceeds from the opening to both sides.

[0009] Preferably, the bonding mortar in step three is a special bonding mortar, which is made by mixing cement, fine sand and polymer additives in a weight ratio of 1:1.5-2.5:0.03-0.07, with the water-cement ratio controlled between 0.4 and 0.6, and the coating thickness is 3-5 mm, so that the mortar evenly covers the top surface of the board without any missed areas or accumulation.

[0010] Preferably, the specific operations for installing the equipment in step four include: The ALC wall panel installation robot uses a hydraulic system to control the lifting speed, which ranges from 10 to 30 cm / s. The adjustable bracket has a fine-tuning function with an adjustment accuracy of ±1 mm. When tightening the wall panel, the extrusion pressure should be controlled at 5-10kN to ensure that the mortar is fully extruded and forms a tight contact with the elastic buffer strip.

[0011] Preferably, step five, adjusting the vertical flatness, includes: The verticality deviation measured by the laser level shall not exceed 3mm / m, and the flatness deviation shall not exceed 2mm. When using a rubber mallet to tap the wooden wedge, apply even force to avoid damaging the board. After correction, the spacing between the galvanized U-shaped clips should not exceed 600mm to ensure the stability of the wall.

[0012] Preferably, the wall panel splicing in step six includes: The width of the rubber strip matches the mortise and tenon, which is 20-30mm. The thickness of the adhesive material is 2-3mm. The extrusion pressure during splicing is 3-5kPa to ensure that there is no gap between the tenon and the mortise. After the panels are assembled, promptly clean up any excess mortar on the surface to keep the wall clean.

[0013] Preferably, the material specifications of the ALC wall panel are as follows: Strength grade A3.0 / B05, length range 1500-6000mm, width 600mm, thickness 200-300mm; The boards must have a certificate of conformity from the manufacturer, and the curing period must be no less than 28 days. The moisture content must be tested before installation, and the moisture content must not exceed 15%.

[0014] Preferably, the equipment used in the construction method includes: Construction hoists are used for vertical transportation, tower cranes are used for hoisting, ALC wall panel installation robots are used for handling and positioning, nail guns are used to fix elastic buffer strips and connectors, the nail gun pressure is set to 0.5-0.8MPa, circular saws are used for cutting boards, and gantry scaffolding serves as an operating platform.

[0015] Preferably, the method further includes quality control measures: Before installation, the dimensions and surface quality of the boards must be checked to ensure there are no cracks or missing edges or corners. Moisten the gaps before filling them with special adhesive mortar; fill the gaps completely with the special bonding mortar. The length of the transverse groove shall not exceed 1 / 2 of the plate width, the groove depth shall not exceed 20mm, and the groove width shall not exceed 300mm; After construction, repair any defects with special repair mortar to maintain the integrity of the wall surface.

[0016] Compared with the prior art, the present invention provides a construction method for assembling ALC wall panels and structural beams without grouting, which has the following beneficial effects: 1. In this invention, by cleaning and measuring the base layer, the installation edge line and control line are marked out according to the detailed design drawings, and the building line is marked out on the concrete wall column as a reference to ensure the accuracy of the wall panel installation position. At the same time, cleaning equipment is used to remove debris and dust from the ground, so that the base layer is flat and dry, avoiding installation deviations caused by unclean or uneven base layer, and improving construction efficiency and overall wall alignment.

[0017] 2. In this invention, by installing an elastic buffer strip and applying adhesive mortar, an elastic buffer strip is set in the center of the top of the wall panel and fixed to the bottom of the structural beam with nails. At the same time, special adhesive mortar is applied evenly, and the wall panel is pressed tightly by the installation equipment to squeeze out the mortar, forming a prestressing effect, absorbing structural deformation, preventing the wall panel from sinking and cracking, realizing grout-free construction, and enhancing the sealing and durability of the connection parts.

[0018] 3. In this invention, when splicing wall panels, rubber strips are placed between the tenons and grooves and adhesive material is applied. The panels are then spliced ​​and squeezed tightly. The joints and bottom joints are then treated and filled with special adhesive mortar. Combined with quality control measures such as checking the size and surface quality of the panels before installation, it is ensured that there are no cracks or missing edges, ensuring the overall flatness and waterproof performance of the wall surface, reducing the risk of cracking, and improving the consistency of construction quality. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1: A construction method for assembling ALC wall panels and structural beams without grouting, comprising the following steps: Step 1: Base cleaning and measurement layout. Based on the detailed design drawings and construction control lines of the ALC wall panel, clean the ground and mark the installation edge lines and control lines. At the same time, mark the 1m line on the concrete wall column as a reference. Step 2: Install wall panel connectors and elastic buffer strips. Install an elastic buffer strip centered on the top of each ALC wall panel. The elastic buffer strip is 40mm wide and 500mm long. Fix it to the bottom of the structural beam with 20mm long nails. Install wall panel connectors, including pipe clamps and steel clamps. Each panel should have no less than 2 fixing points. Step 3: Apply adhesive mortar to the top of the ALC wall panel. Apply the special adhesive mortar evenly to the top surface of the panel, with a thickness of 3mm. Step 4: Install ALC wall panels. Use installation equipment to erect the wall panels and adjust them to match the ground line. Nail the wall panels so that mortar is squeezed out from the top of the panels. Control the pressure at 5kN and fix them with wooden wedges at the bottom. Step 5: Adjust the vertical flatness. Use a laser level and a 2m straightedge to check that the verticality deviation is no more than 5mm / m and the flatness deviation is no more than 3mm. After correcting by tapping the wooden wedges, fix the reinforcement. Step 6: Wall panel splicing. Apply adhesive material to the top surface and tongue and groove of the subsequent wall panels. The adhesive material should be 2mm thick. Place a 20mm wide rubber strip between the tongue and groove. Splice and press tightly with a compression pressure of 3kPa. Step 7: Treatment of joints and bottom joints. Fill the joints with special adhesive mortar, with a thickness of 5mm. Remove the wooden wedges 3 days after installation and fill them with mortar again and smooth them out.

[0021] Step one, base cleaning and surveying, includes: Use cleaning equipment to remove debris and dust from the ground, making the base layer flat and dry, and then lay out the lines. The accuracy of the lines should not exceed ±2mm. The 1m line of the building should be clearly marked on the wall and column as the installation reference.

[0022] Step two involves the installation of the wall panel connectors, including: The spacing between pipe clamps shall not exceed 1m, the initial clamp height from the floor slab shall be 250mm, and steel clamps shall be intermittently arranged at the joint between the wall panel and the main wall column, with an arrangement spacing not exceeding 1m. The installation sequence proceeds from one end of the main structure to the other, or from the reinforcing plate to both sides. If there is a doorway, the installation proceeds from the opening to both sides.

[0023] In step three, the bonding mortar is a special bonding mortar, which is made of cement, fine sand and polymer additives mixed in a weight ratio of 1:1.5:0.03, with a water-cement ratio controlled at 0.4 and a coating thickness of 3mm, so that the mortar evenly covers the top surface of the board without any missed areas or accumulation.

[0024] The specific operations for installing the equipment in step four include: The ALC wall panel installation robot uses a hydraulic system to control the lifting speed, which is 10cm / s. The adjustable bracket has a fine-tuning function, with an adjustment accuracy of ±1mm. When tightening the wall panel, the extrusion pressure should be controlled at 5kN to ensure that the mortar is fully extruded and forms a tight contact with the elastic buffer strip.

[0025] Step five, adjusting vertical flatness, includes: The verticality deviation measured by the laser level shall not exceed 3mm / m, and the flatness deviation shall not exceed 2mm. When using a rubber mallet to tap the wooden wedge, apply even force to avoid damaging the board. After correction, the spacing between the galvanized U-shaped clips should not exceed 600mm to ensure the stability of the wall.

[0026] Step six, wall panel splicing, includes: The rubber strip width matches the mortise and tenon, which is 20mm. The adhesive material is applied with a thickness of 2mm. The extrusion pressure during splicing is 3kPa, so that there is no gap between the tenon and the mortise. After the panels are assembled, promptly clean up any excess mortar on the surface to keep the wall clean.

[0027] The material specifications for ALC wall panels are as follows: Strength grade A3.0 / B05, length 1500mm, width 600mm, thickness 200mm; The boards must have a certificate of conformity from the manufacturer, and the curing period must be no less than 28 days. The moisture content must be tested before installation, and the moisture content must not exceed 15%.

[0028] The equipment used in the construction method includes: Construction hoists are used for vertical transportation, tower cranes are used for hoisting, ALC wall panel installation robots are used for handling and positioning, nail guns are used to fix elastic buffer strips and connectors, the nail gun pressure is set to 0.5MPa, circular saws are used for cutting boards, and gantry scaffolding serves as an operating platform.

[0029] The method also includes quality control measures: Before installation, the dimensions and surface quality of the boards must be checked to ensure there are no cracks or missing edges or corners. Moisten the gaps before filling them with special adhesive mortar; fill the gaps completely with the special bonding mortar. The length of the transverse groove shall not exceed 1 / 2 of the plate width, the groove depth shall not exceed 20mm, and the groove width shall not exceed 300mm; After construction, repair any defects with special repair mortar to maintain the integrity of the wall surface.

[0030] Example 2: A construction method for assembling ALC wall panels and structural beams without grouting, comprising the following steps: Step 1: Base cleaning and measurement layout. Based on the detailed design drawings and construction control lines of the ALC wall panel, clean the ground and mark the installation edge lines and control lines. At the same time, mark the 1m line on the concrete wall column as a reference. Step 2: Install wall panel connectors and elastic buffer strips. Install an elastic buffer strip centered on the top of each ALC wall panel. The elastic buffer strip is 50mm wide and 600mm long. Fix it to the bottom of the structural beam with 25mm long nails. Install wall panel connectors, including pipe clamps and steel clamps. Each panel should have no less than 2 fixing points. Step 3: Apply adhesive mortar to the top of the ALC wall panel. Apply the special adhesive mortar evenly to the top surface of the panel, with a thickness of 4mm. Step 4: Install ALC wall panels. Use installation equipment to erect the wall panels and adjust them to match the ground line. Nail the wall panels so that mortar is squeezed out from the top of the panels. Control the pressure at 7kN and fix the bottom with wooden wedges. Step 5: Adjust the vertical flatness. Use a laser level and a 2m straightedge to check that the verticality deviation is no more than 5mm / m and the flatness deviation is no more than 3mm. After correcting by tapping the wooden wedges, fix the reinforcement. Step Six: Wall Panel Assembly. Apply adhesive material to the top surface and tongue and groove of the subsequent wall panels. The adhesive material should be 2.5mm thick. Place a 25mm wide rubber strip between the tongue and groove. Press the panels tightly together with a compression pressure of 4kPa. Step 7: Treatment of joints and bottom joints. Fill the joints with special adhesive mortar, with a thickness of 7mm. Remove the wooden wedges 4 days after installation and fill them with mortar again and smooth them out.

[0031] Step one, base cleaning and surveying, includes: Use cleaning equipment to remove debris and dust from the ground, making the base layer flat and dry, and then lay out the lines. The accuracy of the lines should not exceed ±2mm. The 1m line of the building should be clearly marked on the wall and column as the installation reference.

[0032] Step two involves the installation of the wall panel connectors, including: The spacing between pipe clamps shall not exceed 1m, the starting clamp height from the floor slab shall be 300mm, and steel clamps shall be intermittently arranged at the joint between the wall panel and the main wall column, with an arrangement spacing not exceeding 1m. The installation sequence proceeds from one end of the main structure to the other, or from the reinforcing plate to both sides. If there is a doorway, the installation proceeds from the opening to both sides.

[0033] In step three, the bonding mortar is a special bonding mortar, which is made of cement, fine sand and polymer additives mixed in a weight ratio of 1:2.0:0.05, with the water-cement ratio controlled at 0.5 and the coating thickness at 4mm, so that the mortar evenly covers the top surface of the board without any missed areas or accumulation.

[0034] The specific operations for installing the equipment in step four include: The ALC wall panel installation robot uses a hydraulic system to control the lifting speed, which is 20cm / s. The adjustable bracket has a fine-tuning function, with an adjustment accuracy of ±1mm. When tightening the wall panel, the extrusion pressure is controlled at 7kN to ensure that the mortar is fully extruded and forms a tight contact with the elastic buffer strip.

[0035] Step five, adjusting vertical flatness, includes: The verticality deviation measured by the laser level shall not exceed 3mm / m, and the flatness deviation shall not exceed 2mm. When using a rubber mallet to tap the wooden wedge, apply even force to avoid damaging the board. After correction, the spacing between the galvanized U-shaped clips should not exceed 600mm to ensure the stability of the wall.

[0036] Step six, wall panel splicing, includes: The rubber strip width matches the mortise and tenon, which is 25mm. The adhesive material is applied with a thickness of 2.5mm. The extrusion pressure during splicing is 4kPa, ensuring that there is no gap between the tenon and the mortise. After the panels are assembled, promptly clean up any excess mortar on the surface to keep the wall clean.

[0037] The material specifications for ALC wall panels are as follows: Strength grade A3.0 / B05, length 3750mm, width 600mm, thickness 250mm; The boards must have a certificate of conformity from the manufacturer, and the curing period must be no less than 28 days. The moisture content must be tested before installation, and the moisture content must not exceed 15%.

[0038] The equipment used in the construction method includes: Construction hoists are used for vertical transportation, tower cranes are used for hoisting, ALC wall panel installation robots are used for handling and positioning, nail guns are used to fix elastic buffer strips and connectors, the nail gun pressure is set to 0.6MPa, circular saws are used for cutting boards, and gantry scaffolding serves as an operating platform.

[0039] The method also includes quality control measures: Before installation, the dimensions and surface quality of the boards must be checked to ensure there are no cracks or missing edges or corners. Moisten the gaps before filling them with special adhesive mortar; fill the gaps completely with the special bonding mortar. The length of the transverse groove shall not exceed 1 / 2 of the plate width, the groove depth shall not exceed 20mm, and the groove width shall not exceed 300mm; After construction, repair any defects with special repair mortar to maintain the integrity of the wall surface.

[0040] Example 3: A construction method for assembling ALC wall panels and structural beams without grouting, comprising the following steps: Step 1: Base cleaning and measurement layout. Based on the detailed design drawings and construction control lines of the ALC wall panel, clean the ground and mark the installation edge lines and control lines. At the same time, mark the 1m line on the concrete wall column as a reference. Step 2: Install wall panel connectors and elastic buffer strips. Install an elastic buffer strip centered on the top of each ALC wall panel. The elastic buffer strip is 60mm wide and 700mm long. Fix it to the bottom of the structural beam with 30mm long nails. Install wall panel connectors, including pipe clamps and steel clamps. Each panel should have no less than 2 fixing points. Step 3: Apply adhesive mortar to the top of the ALC wall panel. Apply the special adhesive mortar evenly to the top surface of the panel, with a thickness of 5mm. Step 4: Install ALC wall panels. Use installation equipment to erect the wall panels and adjust them to match the ground line. Nail the wall panels so that mortar is squeezed out from the top of the panels. Control the pressure at 10kN and fix them with wooden wedges at the bottom. Step 5: Adjust the vertical flatness. Use a laser level and a 2m straightedge to check that the verticality deviation is no more than 5mm / m and the flatness deviation is no more than 3mm. After correcting by tapping the wooden wedges, fix the reinforcement. Step 6: Wall panel splicing. Apply adhesive material to the top surface and tongue and groove of the subsequent wall panels. The adhesive material should be 3mm thick. Place a 30mm wide rubber strip between the tongue and groove. Splice and press tightly with a compression pressure of 5kPa. Step 7: Treatment of joints and bottom joints. Fill the joints with special adhesive mortar, with a thickness of 10mm. Remove the wooden wedges 5 days after installation and fill them with mortar again and smooth them out.

[0041] Step one, base cleaning and surveying, includes: Use cleaning equipment to remove debris and dust from the ground, making the base layer flat and dry, and then lay out the lines. The accuracy of the lines should not exceed ±2mm. The 1m line of the building should be clearly marked on the wall and column as the installation reference.

[0042] Step two involves the installation of the wall panel connectors, including: The spacing between pipe clamps shall not exceed 1m, the initial clamp height from the floor slab shall be 350mm, and steel clamps shall be intermittently arranged at the joint between the wall panel and the main wall column, with an arrangement spacing not exceeding 1m. The installation sequence proceeds from one end of the main structure to the other, or from the reinforcing plate to both sides. If there is a doorway, the installation proceeds from the opening to both sides.

[0043] In step three, the bonding mortar is a special bonding mortar, which is made of cement, fine sand and polymer additives mixed in a weight ratio of 1:2.5:0.07, with the water-cement ratio controlled at 0.6 and the coating thickness at 5mm, so that the mortar evenly covers the top surface of the board without any missed areas or accumulation.

[0044] The specific operations for installing the equipment in step four include: The ALC wall panel installation robot uses a hydraulic system to control the lifting speed, which is 30cm / s. The adjustable bracket has a fine-tuning function, with an adjustment accuracy of ±1mm. When tightening the wall panel, the extrusion pressure should be controlled at 10kN to ensure that the mortar is fully extruded and forms a tight contact with the elastic buffer strip.

[0045] Step five, adjusting vertical flatness, includes: The verticality deviation measured by the laser level shall not exceed 3mm / m, and the flatness deviation shall not exceed 2mm. When using a rubber mallet to tap the wooden wedge, apply even force to avoid damaging the board. After correction, the spacing between the galvanized U-shaped clips should not exceed 600mm to ensure the stability of the wall.

[0046] Step six, wall panel splicing, includes: The rubber strip width matches the mortise and tenon, which is 30mm. The adhesive material is applied with a thickness of 3mm. The extrusion pressure during splicing is 5kPa, so that there is no gap between the tenon and the mortise. After the panels are assembled, promptly clean up any excess mortar on the surface to keep the wall clean.

[0047] The material specifications for ALC wall panels are as follows: Strength grade A3.0 / B05, length 6000mm, width 600mm, thickness 300mm; The boards must have a certificate of conformity from the manufacturer, and the curing period must be no less than 28 days. The moisture content must be tested before installation, and the moisture content must not exceed 15%.

[0048] The equipment used in the construction method includes: Construction hoists are used for vertical transportation, tower cranes are used for hoisting, ALC wall panel installation robots are used for handling and positioning, nail guns are used to fix elastic buffer strips and connectors, the nail gun pressure is set to 0.8MPa, circular saws are used for cutting boards, and gantry scaffolding serves as an operating platform.

[0049] The method also includes quality control measures: Before installation, the dimensions and surface quality of the boards must be checked to ensure there are no cracks or missing edges or corners. Moisten the gaps before filling them with special adhesive mortar; fill the gaps completely with the special bonding mortar. The length of the transverse groove shall not exceed 1 / 2 of the plate width, the groove depth shall not exceed 20mm, and the groove width shall not exceed 300mm; After construction, repair any defects with special repair mortar to maintain the integrity of the wall surface.

[0050] Comparative Example 1: The difference between this comparative example and Example 1 is that no elastic buffer strip was installed during construction in this comparative example.

[0051] Comparative Example 2 differs from Example 1 in that no bonding mortar was applied during construction.

[0052] Comparative Example 3 differs from Example 1 in that rubber tape was not placed during the splicing of the wall panels in this comparative example.

[0053] Comparative Example 4 differs from Example 1 in that: no quality control measures were performed in this comparative example, i.e., the dimensions and surface quality of the board were not checked.

[0054] The performance of the grout-free construction methods for assembling ALC wall panels and structural beams implemented in Examples 1-3 and Comparative Examples 1-4 was tested. The test items and methods are as follows: Bending strength testing was conducted using a universal testing machine to measure the bending capacity of the wall panel under load. For the water absorption test, the sample was soaked in distilled water for 24 hours at room temperature of 25°C. After drying and weighing, the sample was soaked in water again, removed and the surface moisture was wiped off. The percentage increase in mass was then calculated. For flame retardancy testing, in a nitrogen-oxygen mixture with an initial oxygen concentration of 21%, the oxygen concentration is adjusted until the sample burns continuously for 3 minutes or the burning length reaches 50 mm, and the oxygen index is calculated. For joint sealing testing, a water pressure test method is used. A water pressure of 0.1-0.2 MPa is applied to the joint and maintained for 30 minutes to check for leakage.

[0055] The test data of the ALC wall panels constructed in Examples 1-3 and Comparative Examples 1-4 are recorded in the table below: By comparing and analyzing the data in the table, it can be seen that the ALC wall panels constructed using the process in Examples 1-3 have significantly better performance than those constructed using Comparative Examples 1-4. This indicates that the present invention, through base cleaning and measurement, marks the installation edge lines and control lines according to the detailed design drawings, and marks the building lines on the concrete wall columns as a reference, ensuring the accuracy of the wall panel installation position. At the same time, cleaning equipment is used to remove debris and dust from the ground, making the base flat and dry, avoiding installation deviations caused by unclean or uneven bases, improving construction efficiency and overall wall alignment; by installing elastic buffer strips and applying adhesive mortar, a centrally located strip is placed on the top of the wall panel. An elastic buffer strip is placed and fixed to the bottom of the structural beam with nails. At the same time, special adhesive mortar is evenly applied. The wall panel is then pressed tightly using installation equipment to squeeze out the mortar, forming a prestressing effect, absorbing structural deformation, preventing wall panel sinking and cracking, achieving grout-free construction, and enhancing the sealing and durability of the connection parts. When splicing wall panels, rubber strips are placed between the tongue and groove and adhesive material is applied. The splices are pressed tightly together, and then the joints and bottom joints are treated and filled with special adhesive mortar. Combined with quality control measures, such as checking the size and surface quality of the panels before installation, it is ensured that there are no cracks or missing edges, ensuring the overall flatness and waterproof performance of the wall surface, reducing the risk of cracking, and improving the consistency of construction quality.

[0056] By comparing and analyzing the relevant data in the table, it can be seen that the ALC wall panel constructed using the method of the present invention has good crack resistance, water resistance, flame retardancy and structural strength.

[0057] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0058] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A construction method for assembling ALC wall panels and structural beams without grouting, characterized in that: Includes the following steps: Step 1: Base cleaning and measurement layout. Based on the detailed design drawings and construction control lines of the ALC wall panel, clean the ground and mark the installation edge lines and control lines. At the same time, mark the 1m line on the concrete wall column as a reference. Step 2: Install wall panel connectors and elastic buffer strips. Install an elastic buffer strip in the center of the top of each ALC wall panel. The elastic buffer strip is 40-60mm wide and 500-700mm long. Fix it to the bottom of the structural beam with nails with a length of 20-30mm. Install wall panel connectors, including pipe clamps and steel clamps. Each panel has no less than 2 fixing points. Step 3: Apply adhesive mortar to the top of the ALC wall panel. Apply the special adhesive mortar evenly to the top surface of the panel, with a thickness of 3-5mm. Step 4: Install ALC wall panels. Use installation equipment to erect the wall panels and adjust them to match the ground line. Nail the wall panels so that mortar is squeezed out from the top of the panels. Control the pressure at 5-10kN and fix them with wooden wedges at the bottom. Step 5: Adjust the vertical flatness. Use a laser level and a 2m straightedge to check that the verticality deviation is no more than 5mm / m and the flatness deviation is no more than 3mm. After correcting by tapping the wooden wedges, fix the reinforcement. Step 6: Wall panel splicing. Apply adhesive material to the top surface and tongue and groove of the subsequent wall panels. The adhesive material should be 2-3mm thick. Place a 20-30mm wide rubber strip between the tongue and groove. Splice and press tightly with a compression pressure of 3-5kPa. Step 7: Treatment of joints and bottom joints. Fill the joints with special adhesive mortar, with a thickness of 5-10mm. Remove the wooden wedges 3-5 days after installation and fill them with mortar again to smooth them out.

2. The construction method for assembling ALC wall panels and structural beams without grouting according to claim 1, characterized in that: Step one, which involves cleaning and surveying the base layer, includes: Use cleaning equipment to remove debris and dust from the ground, making the base layer flat and dry, and then lay out the lines. The accuracy of the lines should not exceed ±2mm. The 1m line of the building should be clearly marked on the wall and column as the installation reference.

3. The construction method for assembling ALC wall panels and structural beams without grouting according to claim 1, characterized in that: The installation of the wall panel connectors in step two includes: The spacing between pipe clamps shall not exceed 1m, and the initial clamp height from the floor slab shall be 250-350mm. Steel clamps shall be intermittently arranged at the joint between the wall panel and the main wall column, with a spacing not exceeding 1m. The installation sequence proceeds from one end of the main structure to the other, or from the reinforcing plate to both sides. If there is a doorway, the installation proceeds from the opening to both sides.

4. The construction method for assembling ALC wall panels and structural beams without grouting according to claim 1, characterized in that: The bonding mortar used in step three is a special bonding mortar, which is made by mixing cement, fine sand and polymer additives in a weight ratio of 1:1.5-2.5:0.03-0.

07. The water-cement ratio is controlled between 0.4 and 0.6, and the coating thickness is 3-5mm, so that the mortar evenly covers the top surface of the board without any missed areas or accumulation.

5. The construction method for assembling ALC wall panels and structural beams without grouting according to claim 1, characterized in that: The specific operations for installing the equipment in step four include: The ALC wall panel installation robot uses a hydraulic system to control the lifting speed, which ranges from 10 to 30 cm / s. The adjustable bracket has a fine-tuning function with an adjustment accuracy of ±1 mm. When tightening the wall panel, the extrusion pressure should be controlled at 5-10kN to ensure that the mortar is fully extruded and forms a tight contact with the elastic buffer strip.

6. The construction method for assembling ALC wall panels and structural beams without grouting according to claim 1, characterized in that: Step five, adjusting the vertical flatness, includes: The verticality deviation measured by the laser level shall not exceed 3mm / m, and the flatness deviation shall not exceed 2mm. When using a rubber mallet to tap the wooden wedge, apply even force to avoid damaging the board. After correction, the spacing between the galvanized U-shaped clips should not exceed 600mm to ensure the stability of the wall.

7. The construction method for assembling ALC wall panels and structural beams without grouting according to claim 1, characterized in that: Step six, the wall panel splicing, includes: The width of the rubber strip matches the mortise and tenon, which is 20-30mm. The thickness of the adhesive material is 2-3mm. The extrusion pressure during splicing is 3-5kPa to ensure that there is no gap between the tenon and the mortise. After the panels are assembled, promptly clean up any excess mortar on the surface to keep the wall clean.

8. The construction method for assembling ALC wall panels and structural beams without grouting according to claim 1, characterized in that: The material specifications of the ALC wall panel are as follows: Strength grade A3.0 / B05, length range 1500-6000mm, width 600mm, thickness 200-300mm; The boards must have a certificate of conformity from the manufacturer, and the curing period must be no less than 28 days. The moisture content must be tested before installation, and the moisture content must not exceed 15%.

9. A construction method for assembling ALC wall panels and structural beams without grouting, as described in claim 1, is characterized in that: The equipment used in the construction method includes: Construction hoists are used for vertical transportation, tower cranes are used for hoisting, ALC wall panel installation robots are used for handling and positioning, nail guns are used to fix elastic buffer strips and connectors, the nail gun pressure is set to 0.5-0.8MPa, circular saws are used for cutting boards, and gantry scaffolding serves as an operating platform.

10. A construction method for assembling ALC wall panels and structural beams without grouting, as described in claim 1, is characterized in that: The method also includes quality control measures: Before installation, the dimensions and surface quality of the boards must be checked to ensure there are no cracks or missing edges or corners. Moisten the gaps before filling the joints, then fill them completely with special adhesive mortar. The length of the transverse groove shall not exceed 1 / 2 of the plate width, the groove depth shall not exceed 20mm, and the groove width shall not exceed 300mm; After construction, repair any defects with special repair mortar to maintain the integrity of the wall surface.