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CN-121992695-A - 3D printing bearing permeable color concrete structure and construction method thereof

CN121992695ACN 121992695 ACN121992695 ACN 121992695ACN-121992695-A

Abstract

The application relates to the technical field of building materials, and particularly discloses a 3D printing bearing permeable color concrete structure and a construction method thereof, wherein the construction method comprises the steps of foundation pre-burying, arranging a 3D printing formed pattern bottom die in a construction area, and inserting a permeable luminous assembly into a pattern bottom die hole to form an integrated drainage and illumination system; and a construction step of a structural layer, in which a reinforcing mesh and wet-cut aluminum strips are paved in sequence, a bearing concrete base layer is paved, and a decoration surface layer construction step of paving a color polymer gravel mortar surface layer on the base layer by adopting 3D printing and grouting paving equipment, so as to form a decoration pattern. The application realizes the integrated system of bearing, water permeability, sound, light, electricity, brightening and drainage of the paving structure, has the advantages of high construction efficiency, customizable pattern, convenient maintenance, strong durability and the like, and is suitable for paving various landscapes and functions in sponge cities, park roads, large squares and amusement park ground construction.

Inventors

  • SHAN YUGUI
  • SHA SHENGGANG
  • LI HUIZI
  • LI LONG

Assignees

  • 普丽(东莞)新材料有限公司

Dates

Publication Date
20260508
Application Date
20260213

Claims (10)

  1. 1. The 3D printing bearing water-permeable colored concrete structure is characterized by comprising a water stabilizing layer (2), a concrete cushion layer (3) and a colored surface layer (4) which are sequentially arranged on a base layer (1), wherein a reinforcing steel bar layer and a wet-cutting aluminum profile strip are arranged between the colored surface layer (4) and the concrete cushion layer (3), a 3D printing pattern base is embedded in the concrete cushion layer (3), holes are formed in the 3D printing pattern base, a water-permeable luminous component (5) is inserted in the holes, the water-permeable luminous component (5) is perpendicular to the base layer (1), and the top surface of the water-permeable luminous component (5) is flush with the top surface of the colored surface layer (4).
  2. 2. The 3D printing bearing water-permeable color concrete structure according to claim 1, wherein the water-permeable luminous component (5) comprises a sewer pipe (50), a luminous tube (51), a light pipe (52) and a lamp belt (54), the sewer pipe (50) is vertically arranged in the concrete structure, the top end of the sewer pipe (50) is flush with the top end of the color surface layer (4), the sewer pipe (50) is communicated with the external environment, the light pipe (52) is horizontally arranged in the concrete structure, the lamp belt (54) is arranged in the light pipe (52) in a penetrating manner, one end of the luminous tube (51) is connected with the sewer pipe (50) and is arranged in the sewer pipe (50) in a penetrating manner, the other end of the luminous tube (51) is connected with the light pipe (52) in a penetrating manner, and the luminous tube (51) is a soft fiber.
  3. 3. The 3D printing load-bearing pervious color concrete structure according to claim 2, wherein the pervious light emitting assembly (5) further comprises a water guide pipe (56) and a water outlet pipe (57), a three-way pipe (55) is connected to the bottom of the water outlet pipe (50), one end of the water guide pipe (56) is connected with the three-way pipe (55), the other end of the water guide pipe is connected with the water outlet pipe (57), the water outlet pipe (57) is horizontally arranged in the concrete structure, a plurality of water outlet pipes (53) are arranged at the bottom of the water outlet pipe (57), and the water outlet pipes (53) are inserted into the base layer (1).
  4. 4. The 3D printing load-bearing water-permeable colored concrete structure according to claim 3, wherein a hydrophobic coating is arranged in the water guide pipe (56) and the water drain pipe (50), the hydrophobic coating is a composite coating based on silica nanoparticles or fluorosilane, a brightening coating is arranged in the luminous tube (51) and the light guide pipe (52), the brightening coating takes transparent epoxy resin or polyurethane as a matrix and is dispersed with light functional filler, and the light functional filler is one or more of transparent glass beads and light dispersing agents.
  5. 5. The 3D printing load-bearing permeable color concrete structure according to claim 3, wherein a luminous tube (60) is sleeved at the bottom of the sewer pipe (50), and the luminous tube (60) is made of silicon resin added with luminous powder.
  6. 6. A construction method of a 3D printed load-bearing water-permeable color concrete structure, which is used for the 3D printed load-bearing water-permeable color concrete structure according to any one of claims 1 to 5, and is characterized by comprising the following steps: a foundation pre-embedding step, namely arranging a figure bottom die formed by 3D printing in a construction area, wherein holes for inserting water guide pipes (56) are reserved on the bottom die, and a system integrating drainage and illumination is formed; The construction step of the structural layer comprises the steps of sequentially paving a reinforcing mesh and wet slitting aluminum strips after the foundation pre-burying step, and paving a bearing concrete base layer (1); Paving a color polymer gravel mortar surface layer on the bearing concrete base layer (1) by adopting 3D printing and grouting paving equipment to form a decorative pattern; One end of the water guide pipe is connected with a three-way pipe (55), the three-way pipe (55) is connected with a sewer pipe (50) and a luminous tube (51), the water guide pipe (56) is inserted into a water outlet pipe (57), and a water outlet pipe at the bottom of the water outlet pipe (57) extends into a concrete base layer (1) or soil.
  7. 7. The method for constructing a 3D printed load-bearing water-permeable color concrete structure according to claim 6, wherein the decoration surface layer construction step further comprises the following steps: Controlling the gunite width and thickness of the color aggregate polymer mortar by the 3D printing gunite paving equipment, carrying out pulling leveling after the surface of the colored aggregate polymer mortar is shaped, a color surface layer (4) forming a predetermined pattern; and then broadcasting color aggregate, compacting and harvesting.
  8. 8. The construction method of the 3D printing load-bearing permeable color concrete structure according to claim 7, further comprising the surface treatment procedures of spraying a film-forming water-retention type passivating agent for curing and passivating, grinding and desizing, pickling, alkali neutralization and coating with a permeable silane protective agent after the decoration surface layer construction step.
  9. 9. The construction method of the 3D printing load-bearing permeable color concrete structure according to claim 6, wherein in the foundation pre-embedding step, the forming of the bottom die comprises the following steps: Injecting epoxy resin into the 3D printer, and printing out a graphic framework reserved with holes; Inserting the water guide pipe (56) into the hole of the bottom die of the graphic framework; Covering a prefabricated silica gel mold on the bottom mold, and aligning holes of the silica gel mold with holes of the bottom mold, wherein two ends of the water guide pipe (56) extend out of the upper surface and the lower surface of the silica gel mold respectively; And injecting high-strength epoxy resin slurry into the 3D printer, injecting the high-strength epoxy resin slurry into the silica gel mold, and removing the silica gel mold after the high-strength epoxy resin slurry is solidified to obtain the pattern skeleton with water-permeable and luminous properties.
  10. 10. The construction method of the 3D printing load-bearing permeable color concrete structure according to claim 7, wherein the construction method of the 3D printing gunite paving equipment comprises the following steps: the method comprises the steps of setting a track foundation, namely paving an assembled and disassembled steel mould along a preset construction area, wherein the steel mould is used as an elevation control reference and is used as a movable track supporting foundation of construction equipment; The 3D printing and grouting paving equipment is driven to move along a track on the steel mould, and the 3D printing and grouting paving equipment synchronously executes the following actions of swinging and spraying color concrete slurry, vibrating and compacting the sprayed slurry and scraping the slurry in a first step in the moving process; Edge processing, namely moving along the steel mould by using a vertical edge collecting device, wherein the vertical edge collecting device is provided with a circular arc-shaped working surface which is tightly attached to the side surface of the steel mould so as to smooth and collect the side edge of the slurry; and (3) surface polishing, namely driving a polishing device to move along the track on the steel mould, and trowelling and polishing the slurry surface after the initial step is scraped.

Description

3D printing bearing permeable color concrete structure and construction method thereof Technical Field The application relates to the technical field of building materials, in particular to a 3D printing bearing water-permeable color concrete structure and a construction method thereof. Background In recent years, with the acceleration of the urban process, the problem of urban heat island effect becomes more obvious. Meanwhile, due to the influence of climate change, flood disasters form a serious threat to sustainable development of society and stabilization of an ecological system. To effectively address these challenges, attempts have been made to maximize the absorption, storage and utilization of rain water resources in cities, thereby providing innovative concepts for constructing sponge cities. In the construction of sponge cities, cement-based materials play a critical role, especially in pervious concrete. The material not only can effectively absorb and permeate ground water and reduce rainwater runoff so as to relieve urban waterlogging, but also can be widely applied to various public spaces such as roads, squares, parks, sidewalks, parking lots and the like. By means of the measures, the sponge city simulates the water circulation process of natural environment, and the green infrastructure of the city is greatly enhanced. However, the existing permeable concrete and the adhesive stone pavement have the problems of cracking, stone falling, fading and poor freezing resistance, and the cement permeable bricks and the ceramic permeable bricks have the defects that the auxiliary materials are required in the paving process, the design requires that the sand paved with the bricks cannot be added with cement, the sand hardening and the water permeability are poor due to the addition of cement, the cement is not added, the strength is not available, and the sand flows during raining to cause the loosening and sinking of the permeable bricks. To sum up, the existing bearing paving material does not have a large-area water permeable function, has a water permeable function and cannot bear load. Disclosure of Invention The application provides a 3D printing bearing permeable color concrete structure and a construction method thereof, and aims to solve the problem that the existing paving material cannot have the functions of bearing and permeable. On one hand, the 3D printing bearing permeable color concrete structure provided by the application adopts the following technical scheme: The utility model provides a colored concrete structure of bearing that permeates water is printed to 3D, including establishing steady layer of water, concrete cushion and the colored surface course that sets gradually on the basic unit, be provided with reinforcing bar layer and wet joint-cutting aluminium strip between colored surface course and the concrete cushion, pre-buried 3D in the concrete cushion prints the figure base, has seted up the hole on the figure base is printed to 3D, and the hole interpolation is equipped with the luminous subassembly that permeates water, and the luminous subassembly that permeates water sets up perpendicularly basic unit, and the top surface of luminous subassembly that permeates water flushes with the top surface of colored surface course. By adopting the technical scheme, the water stabilization layer and the bearing concrete cushion layer provide strong load diffusion and bearing capacity, the embedded reinforcing steel bar layer remarkably enhances bending resistance, and the wet kerf aluminum profile prevents irregular cracking of concrete. The pre-buried 3D prints base and luminous subassembly that permeates water, has realized the function integration of illumination and drainage, and does not occupy extra space. The color surface layer is beautiful and permeable. The whole structure has clear level and high functional integration level, and really realizes the unification of landscape pavement in terms of strength, function, beauty and durability. In some embodiments, the permeable light emitting assembly comprises a sewer pipe, a luminous tube, a light pipe and a lamp strip, wherein the sewer pipe is vertically arranged in the concrete structure, the top end of the sewer pipe is flush with the top end of the color surface layer, the sewer pipe is communicated with the external environment, the light pipe is horizontally arranged in the concrete structure, the lamp strip is arranged in the light pipe in a penetrating manner, one end of the luminous tube is connected with the sewer pipe and arranged in the sewer pipe in a penetrating manner, the other end of the luminous tube is connected with the light pipe, and the luminous tube is a soft optical fiber. In some embodiments, the permeable light emitting assembly further comprises a water guide pipe and a water outlet pipe, the bottom of the water outlet pipe is connected with a three-way pipe, one end of the water guide pipe