Processing method of fair-faced concrete bamboo mould veneer

Abstract

The invention relates to a processing method of a fair-faced concrete bamboo mould veneer. According to the method, a two-dimensional plane drawing is generated after three-dimensional modeling is conducted through computer software, partition numbering is conducted according to the drawing, the supporting formworks and the wooden back ridges are correspondingly and accurately cut, and rapid and accurate building of the curved-surface formwork support is guaranteed through accurate installation and building according to the numbers on site. Selected bamboos are strictly controlled, water bamboos and moso bamboos are selected, the moisture content of the bamboos is strictly controlled, the flatness of tangential sections of processed bamboo chips is precisely controlled through planing, the bamboo chips can be tightly attached to a face panel, gaps between the bamboo chips are filled with transparent weather-proof structural adhesive, and smoothness of transition faces between the bamboo chips is guaranteed; and after the surfaces of the bamboo chips are painted with a water-based release agent twice, one-time casting of fair-faced concrete is conducted, and casting of the bamboo mold veneer is completed. The whole process strictly controls the construction details of the bamboo formwork structure, ensures the accuracy and attractiveness of the formed veneer, and effectively solves the problems of arching, bursting and the like in the pouring process of the curved-surface bamboo formwork veneer.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cast-in-place concrete construction technology, in particular to a processing method of a cast-in-place concrete bamboo mold finish. BACKGROUND

[0002] Cast-in-place concrete is a kind of decorative concrete that can directly meet the finishing requirements without any secondary decoration on the outside, which is widely used in various construction projects. Cast-in-place concrete can achieve high apparent quality, so it is often used for the production of exterior wall finishes. After pouring cast-in-place concrete with bamboo as a mold, lightweight concrete wall panels in the shape of bamboo can be obtained. The natural characteristics of bamboo are obvious after production, and the texture of bamboo patterns reduces the heaviness of concrete walls, making the building closely related to nature. However, due to the light weight of bamboo, the supporting force is insufficient when used as a mold, which can cause deformation of the slurry and reduce the appearance quality of cast-in-place concrete. Therefore, a stable and effective processing method of bamboo mold finish is needed. SUMMARY

[0003] In view of the problems existing in the prior art, the present application discloses a processing method of a cast-in-place concrete bamboo mold finish, which comprises the following steps: Step one, establish a construction model by BIM, and expand the curved surface of the three-dimensional model by computer software to form a two-dimensional drawing; Step two, number and cut the template and wood back spline drawing according to the two-dimensional drawing to form the template and wood back spline deepening drawing; Step three, install and build the wood back spline skeleton, template bottom lining and face panel according to the number of the template and wood back spline deepening drawing on the construction site, and install the upper layer of bamboo veneer panel to form a three-dimensional multi-curved surface mold; Step four, reinforce the mold according to the elevation points and structure surface positions of the three-dimensional multi-curved surface mold; Step five, bind the reinforcement cage in the three-dimensional multi-curved surface mold, lay the stainless steel mesh in the reinforcement cage, and then pour the finish cast-in-place concrete into the three-dimensional multi-curved surface mold at one time; Step six, after pouring, cover the upper opening with a polymer curing blanket, and perform mold curing construction on the other parts. After the cast-in-place concrete is cured and solidified, perform a rebound experiment. When the strength meets the requirements, remove the template system to obtain the cast-in-place concrete bamboo mold finish.

[0004] As a preferred embodiment of the present application, the installation of the bamboo veneer panel in step three comprises the following steps: Step 31, select naturally grown water bamboo and bamboo, and cut within 20 days before construction and installation. Control the moisture content of the bamboo to 25-30% by drying and baking. Step 32, manually screen the bamboo with straight body, and manually split the bamboo to obtain water bamboo and bamboo chips; Step 33, perform planing processing on the chord section of the split water bamboo and bamboo chips, and control the specifications of the water bamboo and bamboo chips to meet the requirements; Step 34, after high-temperature baking of the water bamboo and bamboo chips by using a high-pressure fire gun for 4-6 seconds, the bamboo chips are fixed and installed on the face panel, the installation interval of the bamboo chips is controlled to be not more than 10 mm, and the staggered size of the horizontal joint of the bamboo chips is controlled to be not more than 5 mm; Step 35, after installation of all the bamboo chips, transparent weather-resistant structural glue is injected into the gap between the bamboo chips; Step 36, water-based release agent is brushed on the surface of the bamboo chips for two times, and the installation of the bamboo veneer panel is completed.

[0005] As a preferred scheme of the present application, the water bamboo in step 31 is selected to have a diameter of 28-33 mm and grow for 3-5 years.

[0006] As a preferred scheme of the present application, the bamboo in step 31 is selected to have a diameter of 48-53 mm and grow for 4-7 years.

[0007] As a preferred scheme of the present application, the specification of the water bamboo chip in step 33 is that the chord height is 15-25 mm and the chord length is not more than 30 mm.

[0008] As a preferred scheme of the present application, the specification of the bamboo chip in step 33 is that the chord height is 25-35 mm and the chord length is not more than 50 mm.

[0009] As a preferred scheme of the present application, the gap between the bamboo chip and the face panel is controlled to be not more than 2 mm in the installation process of the bamboo veneer panel in step 34.

[0010] The present application has the following beneficial effects: the present application generates a two-dimensional drawing by three-dimensional modeling through computer software, carries out partition numbering according to the drawing, and carries out corresponding accurate cutting on the supporting template and the wooden back ridge, and the curved surface template support is quickly and accurately built by accurate installation and construction on site. The selected bamboo is strictly controlled, and water bamboo and bamboo are selected, and the water content of the bamboo is strictly controlled. The chord section flatness of the processed bamboo chip is accurately controlled through planing processing, so that the bamboo chip can be closely combined with the face panel, the gap between the bamboo chips is filled through transparent weather-resistant structural glue, the smoothness of the transition surface between the bamboo chips is ensured, and the bamboo chip surface is brushed with water-based release agent for two times, and then the cast-in-place concrete is poured once to complete the pouring of the bamboo veneer. The whole process strictly selects materials and strictly controls the building details of the bamboo structure, ensures the accuracy and beauty of the formed veneer, and effectively solves the problems of arching and cracking in the pouring process of the curved bamboo veneer. DETAILED DESCRIPTION

[0011] Embodiment 1

[0012] The processing method of the bamboo mold decoration surface of the clear concrete, comprising the following steps: Step one, establish the construction model through BIM, and expand the curved surface of the three-dimensional model through computer software to form a two-dimensional drawing; Step two, number and cut the template and wood back ridge drawing according to the two-dimensional drawing to form the template and wood back ridge deepening drawing; Step three, install and build the wood back ridge skeleton, template bottom lining and face panel according to the number of the template and wood back ridge deepening drawing on the construction site, and install the upper layer of bamboo decorative panel to form a three-dimensional multi-curved surface mold frame; wherein the steps of installing the bamboo decorative panel are as follows: Step 31, select naturally grown water bamboo and bamboo, select water bamboo with a diameter of 28mm and grown for 3 years, select bamboo with a diameter of 48mm and grown for 4 years, and the cutting time is not more than 20 days before construction and installation, control the moisture content of the bamboo to 25% through air drying and baking; Step 32, manually select straight bamboo and manually cut it in half to obtain water bamboo and bamboo; Step 33, plane the chord cut surface of the water bamboo and bamboo, and control the specifications of the water bamboo as follows: chord height 15mm, chord length not more than 30mm, and the specifications of the bamboo as follows: chord height 25mm, chord length not more than 50mm; Step 34, bake the water bamboo and bamboo with high-pressure fire guns for 4 seconds, and then fix and install them on the face panel, control the gap between the bamboo and the face panel to be not more than 2mm during installation, control the installation interval of the bamboo to be not more than 10mm, and control the staggered size of the horizontal joint of the bamboo to be not more than 5mm; Step 35, after all the bamboo is installed, fill transparent weather-resistant structural adhesive into the gap between the bamboo and the bamboo; Step 36, brush water-based release agent on the surface of the bamboo, brush twice, and complete the installation of the bamboo decorative panel; Step four, reinforce the mold frame according to the elevation points and the positions of the structural surfaces of the three-dimensional multi-curved surface mold frame; Step five, bind the steel cage in the three-dimensional multi-curved surface mold frame, lay the stainless steel mesh in the steel cage, and then pour the decorative clear concrete into the three-dimensional multi-curved surface mold frame at one time; Step six, after pouring, cover the upper opening with a high-molecular curing blanket, and perform formwork curing construction on the other parts, perform rebound experiment after the clear concrete is cured and solidified, remove the formwork system after the strength meets the requirements, and obtain the clear concrete bamboo mold decoration surface.

[0013] Embodiment 2

[0014] The processing method of the bamboo mold decorative surface of the clear concrete according to the present application comprises the following steps: Step one, a construction model is established through BIM, and the curved surface of the three-dimensional model is unfolded through computer software to form a two-dimensional drawing; Step two, the template and wood back ridge drawing are numbered and cut according to the two-dimensional drawing to form a template and wood back ridge deepening drawing; Step three, the wood back ridge framework, template bottom lining and surface panel are installed and built according to the numbering of the template and wood back ridge deepening drawing on the construction site, and the upper layer of bamboo decorative panel is installed to form a three-dimensional multi-curved surface mold frame; the installation steps of the bamboo decorative panel are as follows: Step 31, natural growing water bamboo and bamboo are selected, the water bamboo is selected to have a diameter of 33 mm and grow for 5 years, the bamboo is selected to have a diameter of 53 mm and grow for 7 years, the cutting time is not more than 20 days before the construction and installation, and the moisture content of the bamboo is controlled to be 30% through air drying and baking; Step 32, the bamboo with straight body is manually selected and cut in half by hand to obtain water bamboo slices and bamboo slices; Step 33, the chord section of the water bamboo slices and the bamboo slices is planed, and the specifications of the water bamboo slices are controlled to be 25 mm in chord height and not more than 30 mm in chord length, and the specifications of the bamboo slices are controlled to be 35 mm in chord height and not more than 50 mm in chord length; Step 34, the water bamboo slices and the bamboo slices are baked by a high-pressure fire gun for 6 seconds and then fixed and installed on the surface panel, the gap between the bamboo slices and the surface panel is controlled to be not more than 2 mm during the installation process, the installation interval of the bamboo slices is controlled to be not more than 10 mm, and the staggered size of the horizontal joint of the bamboo slices is controlled to be not more than 5 mm; Step 35, after the installation of all the bamboo slices is completed, transparent weather-resistant structural adhesive is injected into the gap between the bamboo slices; Step 36, the bamboo slices are coated with water-based release agent, and the coating is performed twice to complete the installation of the bamboo decorative panel; Step four, the mold frame is reinforced according to the elevation points and the positions of the structural surfaces of the three-dimensional multi-curved surface mold frame; Step five, a steel cage is bound in the three-dimensional multi-curved surface mold frame, a stainless steel wire mesh is laid in the steel cage, and then the three-dimensional multi-curved surface mold frame is poured with decorative clear concrete at one time; Step six, after the pouring is completed, a high polymer curing blanket is covered at the upper opening, the other parts are cured with the mold, and after the clear concrete is cured and solidified, a rebound experiment is performed, the strength meets the requirements, the mold system is removed, and the clear concrete bamboo mold decorative surface is obtained.

[0015] Example 3

[0016] The processing method of the clear concrete bamboo mold decorative surface of the present application comprises the following steps: Step one, a construction model is established through BIM, and the curved surface of the three-dimensional model is unfolded through computer software to form a two-dimensional drawing; Step two, the template and wood back ridge drawing are numbered and cut according to the two-dimensional drawing to form a template and wood back ridge deepening drawing; Step three, the wood back ridge framework, template bottom lining and face panel are installed and built according to the numbering of the template and wood back ridge deepening drawing on the construction site, and the upper bamboo flake decorative panel is installed to form a three-dimensional multi-curved surface mold frame; wherein the bamboo flake decorative panel installation steps are as follows: Step 31, natural growing water bamboo and bamboo are selected, the water bamboo is selected to be 30mm in diameter and 4 years old, the bamboo is selected to be 50mm in diameter and 5 years old, the cutting time is not more than 20 days before construction and installation, and the moisture content of the bamboo is controlled to be 28% through air drying and baking; Step 32, the bamboo body straight bamboo is manually selected and cut in half by hand to obtain water bamboo flake and bamboo flake; Step 33, the chord section of the water bamboo flake and the bamboo flake is planed, and the specification of the water bamboo flake is controlled to be 20mm in chord height and not more than 30mm in chord length, and the specification of the bamboo flake is controlled to be 30mm in chord height and not more than 50mm in chord length; Step 34, the water bamboo flake and the bamboo flake are baked for 5 seconds by high-pressure fire gun high-temperature baking and then fixed and installed on the face panel, the gap between the bamboo flake and the face panel is controlled to be not more than 2mm during installation, the installation interval of the bamboo flake is controlled to be not more than 10mm, and the staggered size of the horizontal joint of the bamboo flake is controlled to be not more than 5mm; Step 35, after all the bamboo flake installation is completed, transparent weather-resistant structural adhesive is punched into the gap between the bamboo flake and the bamboo flake; Step 36, the bamboo flake surface is brushed with water-based release agent, and the installation of the bamboo flake decorative panel is completed after brushing twice; Step four, the mold frame is reinforced according to the elevation points and the positions of the structural surfaces of the three-dimensional multi-curved surface mold frame; Step five, the steel reinforcement cage is bound in the three-dimensional multi-curved surface mold frame, the stainless steel wire mesh is laid in the steel reinforcement cage, and then the decorative clear concrete is poured into the three-dimensional multi-curved surface mold frame at one time; Step six, after pouring, the upper opening is covered with a high-molecular curing blanket, the other parts are cured with a mold, and after the clear concrete is cured and solidified, a rebound experiment is conducted, the strength meets the requirements, and then the mold system is removed to obtain the clear concrete bamboo mold decorative surface.

[0017] The components not described in detail herein are prior art.

[0018] Although the specific embodiments of the present application are described in detail above, the present application is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present application, and modifications or variations not having creative labor are still within the scope of the present application.

Claims

1. A method for processing bamboo molded concrete surface, characterized in that, The steps include the following: Step 1: Create a construction model using BIM, and use computer software to unfold the curved surfaces of the 3D model to form 2D plan drawings; Step 2: Number and cut the template and timber backing drawings according to the two-dimensional plan drawings to form detailed template and timber backing drawings; Step 3: Based on the template and detailed drawings of the wooden backing, install and assemble the wooden backing frame, bottom lining board and face panel of the template according to the number on the construction site, and install the upper bamboo strip decorative panel to form a three-dimensional multi-curved surface template. Step 4: Reinforce the formwork according to the elevation points and structural surface positions of the three-dimensional multi-curved surface formwork; Step 5: Tie the reinforcing cage inside the three-dimensional multi-curved surface formwork, lay stainless steel wire mesh inside the reinforcing cage, and then pour the finishing fair-faced concrete into the three-dimensional multi-curved surface formwork in one go. Step 6: After pouring, cover the top with a polymer curing blanket, and carry out curing construction with formwork on the other parts. After the fair-faced concrete has been cured and solidified, conduct a rebound test. After the strength meets the requirements, remove the formwork system to obtain fair-faced concrete bamboo formwork finish.

2. The processing method for bamboo molded surface of fair-faced concrete according to claim 1, characterized in that: Step 3 involves the following steps for installing the bamboo veneer panel: Step 31: Select naturally grown water bamboo and moso bamboo. The felling time should not exceed 20 days before construction and installation. Control the moisture content of the bamboo to 25-30% through sun drying and baking. Step 32: Manually select bamboo with straight stems and manually split them in half to obtain water bamboo strips and moso bamboo strips; Step 33: Plane the tangential surfaces of the split bamboo strips and moso bamboo strips, and ensure that the specifications of the bamboo strips and moso bamboo strips meet the requirements. Step 34: Heat the water bamboo strips and moso bamboo strips with a high-pressure torch for 4-6 seconds and then fix them onto the face panel. Control the installation spacing of the bamboo strips to not exceed 10mm and the misalignment at the horizontal intersection of the bamboo strips to not exceed 5mm. Step 35: After all bamboo strips are installed, inject transparent weather-resistant structural adhesive into the gaps between the bamboo strips. Step 36: Apply water-based release agent to the surface of the bamboo strips, apply two coats, and complete the installation of the bamboo strip veneer.

3. The processing method for bamboo molded surface of fair-faced concrete according to claim 2, characterized in that: The water bamboo used in step 31 has a diameter of 28-33mm and has grown for 3-5 years.

4. The processing method for bamboo molded surface of fair-faced concrete according to claim 2, characterized in that: The bamboo used in step 31 has a diameter of 48-53mm and has been growing for 4-7 years.

5. The processing method for bamboo molded surface of fair-faced concrete according to claim 2, characterized in that: The specifications of the water bamboo strips mentioned in step 33 are: string height 15mm-25mm, string length not exceeding 30mm.

6. The processing method for bamboo molded surface of fair-faced concrete according to claim 2, characterized in that: The specifications of the bamboo strips mentioned in step 33 are: chord height 25mm-35mm, chord length not exceeding 50mm.

7. The processing method for bamboo molded surface of fair-faced concrete according to claim 2, characterized in that: In step 34, during the installation of the bamboo veneer panel, the gap between the bamboo veneer and the face panel should not exceed 2mm.