1. The utility model provides a white UHPC fretwork is decorated link plate, includes single-deck reinforcing bar net (1), its characterized in that: a UHPC base layer (2) is poured on the surface of the single-layer reinforcing mesh (1), sleeves (3) are fixedly connected to four corners of the surface of the UHPC base layer (2), and hollow holes (4) are formed in the surface of the UHPC base layer (2).

2. The white UHPC hollowed-out decorative hanging plate according to claim 1, characterized in that: the sleeve (3) is made of metal materials, and the bottom of the sleeve (3) is fixedly connected with the top of the single-layer reinforcing mesh (1).

3. The production process of the white UHPC hollowed-out decorative hanging plate according to claim 1, which is characterized in that: the method comprises the following steps:

the white UHPC comprises the following components in parts by weight:

white cement 65-80 parts

10-20 parts of mineral powder

10-20 parts of silica fume

90-110 parts of quartz sand

0-30 parts of quartz powder

1.0-1.5 parts of high-performance polycarboxylic acid shrinkage reducing agent

6.0 to 8.0 portions of expanding agent

0.1 to 0.5 portion of shrinkage reducing agent

16-20 parts of water

10-15 parts of steel fiber;

(II) preparation of white UHPC:

adding white cement, mineral powder, silica fume, an expanding agent, quartz sand and quartz powder into a stirrer, stirring for 5-8min, then adding a shrinkage reducing agent, a high-performance polycarboxylic acid shrinkage reducing agent and water simultaneously, and continuing to stir for 8-15 min; then adding steel fiber, and continuously stirring for 8-12min to obtain UHPC;

(III) preparing a white UHPC hollowed-out decorative hanging plate:

A. the method comprises the following steps of designing hollow patterns before production, and marking the positions of round wood molds on a steel mold table by using a pencil according to the designed patterns;

B. after marking is finished, a release agent is coated on the steel mould table back and forth, after the release agent is dried in the air, a single-layer reinforcing mesh (1) is arranged according to the position of the hollow hole (4), and meanwhile, a circular wood mould and a sleeve (3) are arranged;

C. after the arrangement is finished, sealant is applied to the contact part of the circular wood mould and the steel mould table, so that the circular wood mould and the steel mould table are combined more firmly;

D. after the sealant is completely cured, pouring the UHPC base layer (2) at one time, starting a vibrating table to fully tap for 15-30s, ensuring that the UHPC base layer (2) is fully filled between a steel mould table and a round wood mould and fully removing bubbles;

E. and after the forming is finished, placing the hanging plate in a room for curing for 7d, after the curing is finished, hoisting the hanging plate by using an electric hoist, removing the side mold and the circular wood mold, and after the mold removal is finished, obtaining the white UHPC hollowed-out decorative hanging plate.

4. The production process of the white UHPC hollowed-out decorative hanging plate according to claim 3, characterized in that: the preferable component ratio in the step one is as follows: 65 parts of white cement, 10 parts of mineral powder, 17 parts of silica fume, 110 parts of quartz sand, 20 parts of quartz powder, 1.3 parts of high-performance polycarboxylic acid shrinkage reducing agent, 8 parts of expanding agent, 0.5 part of shrinkage reducing agent, 16 parts of water and 14 parts of steel fiber.

5. The production process of the white UHPC hollowed-out decorative hanging plate according to claim 3, characterized in that: the white cement in the first step adopts 525-grade white ordinary portland cement; the model of the mineral powder is S110 grade; the average particle size of the silicon ash is 0.15-0.20 mu m, and the content of silicon dioxide is more than 90%; the quartz sand comprises three particle grades of coarse particle size sand (1.18-0.60 mm), medium particle size sand (0.60-0.30 mm) and fine particle size sand (0.30-0.15 mm), and the weight is as follows: 4: 3, blending in proportion; the quartz powder is 325-mesh grade, and the average particle size is 52 mu m; the appearance of the high-performance polycarboxylic acid shrinkage reducing agent is white powdery solid, the solid content is 23.5 percent, and the water reducing rate is 35 percent; the expanding agent is sulphoaluminate expanding agent, the 7d restricted expansion rate in water is more than 0.030 percent, and the 21d restricted expansion rate in air is more than-0.010 percent; the shrinkage reducing agent is a polyether shrinkage reducing additive, is a light white turbid liquid and can be mixed with water in any proportion; the steel fiber is a straight steel fiber with the length of 13mm and the diameter of 0.22 mm.

6. The production process of the white UHPC hollowed-out decorative hanging plate according to claim 3, characterized in that: and the stirrer in the second step is a planetary stirrer.

7. The production process of the white UHPC hollowed-out decorative hanging plate according to claim 3, characterized in that: and in the step B, the specific size of the circular wood mold is processed according to the size of the hollow hole (4), and the sleeve (3) is bound, connected and fixed with the single-layer reinforcing mesh (1).

8. The production process of the white UHPC hollowed-out decorative hanging plate according to claim 3, characterized in that: and C, embedding a magnet at the bottom of the circular wood mould in the step III to ensure that the wood mould does not displace in the concrete pouring process.

9. The production process of the white UHPC hollowed-out decorative hanging plate according to claim 3, characterized in that: after the white UHPC hollowed-out decorative hanging plate is assembled, the sealing glue is required to be knotted at the abutted seam for structural sealing glue treatment.

Background

UHPC (ultra high performance concrete) is a cement-based composite material with ultra high mechanical property, durability and good decorative property, the UHPC is used for producing an externally hung hollowed-out plate, the building quality can be improved, the same service life as a building is achieved, in order to achieve the ultra high mechanical property and the ultra high durability, the UHPC adopts active mineral admixtures such as silica fume, mineral powder and the like and ultra low water-cement ratio, quartz sand and quartz powder with the particle size of less than 2.0mm are usually adopted to replace the traditional coarse aggregate so as to eliminate the interface defect of the aggregate and a rubber material, meanwhile, a proper amount of steel fiber, expanding agent and shrinkage reducing agent are added to improve the crack resistance of a component, in view of the lack of relevant specifications, the UHPC is mainly applied to building structure reinforcing engineering at present, few buildings in China use the UHPC as decorative exterior wall hanging plates, UHPC curtain wall manufacturers are few, and how to combine the UHPC with a building curtain wall, the UHPC hollow decorative hanging plate and the production process thereof are provided by the invention.

Disclosure of Invention

The invention aims to provide a white UHPC hollowed-out decorative hanging plate and a production process thereof, which are used for solving the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: the white UHPC hollowed-out decorative hanging plate comprises a single-layer steel bar mesh, wherein a UHPC base layer is poured on the surface of the single-layer steel bar mesh, four corners of the surface of the UHPC base layer are fixedly connected with sleeves, and hollowed-out holes are formed in the surface of the UHPC base layer.

Preferably, the sleeve is made of a metal material, and the bottom of the sleeve is fixedly connected with the top of the single-layer reinforcing mesh.

Preferably, the production process of the white UHPC hollowed-out decorative hanging plate comprises the following steps:

the white UHPC comprises the following components in parts by weight:

white cement 65-80 parts

10-20 parts of mineral powder

10-20 parts of silica fume

90-110 parts of quartz sand

0-30 parts of quartz powder

1.0-1.5 parts of high-performance polycarboxylic acid shrinkage reducing agent

6.0 to 8.0 portions of expanding agent

0.1 to 0.5 portion of shrinkage reducing agent

16-20 parts of water

10-15 parts of steel fiber;

(II) preparation of white UHPC:

adding white cement, mineral powder, silica fume, an expanding agent, quartz sand and quartz powder into a stirrer, stirring for 5-8min, then adding a shrinkage reducing agent, a high-performance polycarboxylic acid shrinkage reducing agent and water simultaneously, and continuing to stir for 8-15 min; then adding steel fiber, and continuously stirring for 8-12min to obtain UHPC;

(III) preparing a white UHPC hollowed-out decorative hanging plate:

A. the method comprises the following steps of designing hollow patterns before production, and marking the positions of round wood molds on a steel mold table by using a pencil according to the designed patterns;

B. after marking is finished, a release agent is coated on the steel mould table back and forth, after the release agent is dried in the air, a single-layer reinforcing mesh is arranged according to the hollow hole position, and meanwhile, the circular wood mould and the sleeve are arranged;

C. after the arrangement is finished, sealant is applied to the contact part of the circular wood mould and the steel mould table, so that the circular wood mould and the steel mould table are combined more firmly;

D. after the sealant is completely cured, pouring the UHPC base layer at one time, starting a vibrating table to fully tap for 15-30s, ensuring that the UHPC base layer is fully filled between a steel mould table and a round wood mould and fully removing bubbles;

E. and after the forming is finished, placing the hanging plate in a room for curing for 7d, after the curing is finished, hoisting the hanging plate by using an electric hoist, removing the side mold and the circular wood mold, and after the mold removal is finished, obtaining the white UHPC hollowed-out decorative hanging plate.

Preferably, the preferable component ratio in the step one is as follows: 65 parts of white cement, 10 parts of mineral powder, 17 parts of silica fume, 110 parts of quartz sand, 20 parts of quartz powder, 1.3 parts of high-performance polycarboxylic acid shrinkage reducing agent, 8 parts of expanding agent, 0.5 part of shrinkage reducing agent, 16 parts of water and 14 parts of steel fiber.

Preferably, the white cement in the first step is 525 grade white Portland cement; the model of the mineral powder is S110 grade; the average particle size of the silicon ash is 0.15-0.20 mu m, and the content of silicon dioxide is more than 90%; the quartz sand comprises three particle grades of coarse particle size sand (1.18-0.60 mm), medium particle size sand (0.60-0.30 mm) and fine particle size sand (0.30-0.15 mm), and the weight is as follows: 4: 3, blending in proportion; the quartz powder is 325-mesh grade, and the average particle size is 52 mu m; the appearance of the high-performance polycarboxylic acid shrinkage reducing agent is white powdery solid, the solid content is 23.5 percent, and the water reducing rate is 35 percent; the expanding agent is sulphoaluminate expanding agent, the 7d restricted expansion rate in water is more than 0.030 percent, and the 21d restricted expansion rate in air is more than-0.010 percent; the shrinkage reducing agent is a polyether shrinkage reducing additive, is a light white turbid liquid and can be mixed with water in any proportion; the steel fiber is a straight steel fiber with the length of 13mm and the diameter of 0.22 mm.

Preferably, the stirrer in the second step is a planetary stirrer.

Preferably, the specific size of the circular wood mould in the step B of the step three is processed according to the size of the hollowed-out hole, and the sleeve is bound, connected and fixed with the single-layer reinforcing mesh.

Preferably, the bottom of the circular wood mold in the step C of the step three is embedded with a permanent magnet to ensure that the wood mold does not displace during the concrete pouring process.

Preferably, after the white UHPC hollowed-out decorative hanging plate is assembled, the sealing glue is required to be knotted at the abutted seam for processing.

Compared with the prior art, the invention has the following beneficial effects:

by adopting the production process designed by the invention, the white UHPC hollowed decorative hanging plate can be simply and quickly prepared, time and labor are saved, and the white UHPC hollowed decorative hanging plate is applied to a building curtain wall, so that the white UHPC hollowed decorative hanging plate has ultrahigh mechanical property and ultrahigh durability while ensuring good decorative effect, and the service life of a building outer wall can be prolonged.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic top cross-sectional view of the inventive structure.

In the figure: 1. a single layer of reinforcing mesh; 2. a UHPC base layer; 3. a sleeve; 4. hollow holes are drilled.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The components of the present invention are all standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experimentation.

Referring to fig. 1-2, a white UHPC hollowed decorative hanging plate comprises a single-layer steel bar mesh 1, a UHPC base layer 2 is poured on the surface of the single-layer steel bar mesh 1, four corners of the surface of the UHPC base layer 2 are fixedly connected with sleeves 3, the sleeves 3 are made of metal materials, the bottom of each sleeve 3 is fixedly connected with the top of the single-layer steel bar mesh 1, and hollowed holes 4 are formed in the surface of the UHPC base layer 2.

A production process of a white UHPC hollowed-out decorative hanging plate comprises the following steps:

the white UHPC comprises the following components in parts by weight:

white cement 65-80 parts

10-20 parts of mineral powder

10-20 parts of silica fume

90-110 parts of quartz sand

0-30 parts of quartz powder

1.0-1.5 parts of high-performance polycarboxylic acid shrinkage reducing agent

6.0 to 8.0 portions of expanding agent

0.1 to 0.5 portion of shrinkage reducing agent

16-20 parts of water

10-15 parts of steel fiber;

(II) preparation of white UHPC:

adding white cement, mineral powder, silica fume, an expanding agent, quartz sand and quartz powder into a stirrer, stirring for 5-8min, then adding a shrinkage reducing agent, a high-performance polycarboxylic acid shrinkage reducing agent and water simultaneously, and continuing to stir for 8-15 min; then adding steel fiber, and continuously stirring for 8-12min to obtain UHPC;

(III) preparing a white UHPC hollowed-out decorative hanging plate:

A. the method comprises the following steps of designing hollow patterns before production, and marking the positions of round wood molds on a steel mold table by using a pencil according to the designed patterns;

B. after marking is finished, a release agent is coated on the steel mould table back and forth, after the release agent is dried in the air, a single-layer reinforcing mesh 1 is arranged according to the position of the hollow hole 4, and meanwhile, a circular wood mould and a sleeve 3 are arranged;

C. after the arrangement is finished, sealant is applied to the contact part of the circular wood mould and the steel mould table, so that the circular wood mould and the steel mould table are combined more firmly;

D. after the sealant is completely cured, pouring the UHPC base layer 2 at one time, starting a vibrating table to fully tap for 15-30s, ensuring that the UHPC base layer 2 is fully filled between a steel mould table and a round wood mould and fully removing bubbles;

E. and after the forming is finished, placing the hanging plate in a room for curing for 7d, after the curing is finished, hoisting the hanging plate by using an electric hoist, removing the side mold and the circular wood mold, and after the mold removal is finished, obtaining the white UHPC hollowed-out decorative hanging plate.

The first embodiment is as follows:

adding white cement, mineral powder, silica fume, an expanding agent, quartz sand and quartz powder into a stirrer, stirring for 5-8min, then adding a shrinkage reducing agent, a high-performance polycarboxylic acid shrinkage reducing agent and water simultaneously, and continuing to stir for 8-15 min; then adding steel fiber, continuing stirring for 8-12min to obtain UHPC, firstly performing hollow pattern design before production, and marking the position of a round wood mold on a steel mold table by a pencil according to the designed pattern; after marking is finished, a release agent is coated on the steel mould table back and forth, after the release agent is dried in the air, a single-layer reinforcing mesh 1 is arranged according to the position of the hollow hole 4, and meanwhile, a circular wood mould and a sleeve 3 are arranged; after the arrangement is finished, sealant is applied to the contact part of the circular wood mould and the steel mould table, so that the circular wood mould and the steel mould table are combined more firmly; after the sealant is completely cured, pouring the UHPC base layer 2 at one time, starting a vibrating table to fully tap for 15-30s, ensuring that the UHPC base layer 2 is fully filled between a steel mould table and a round wood mould and fully removing bubbles; and after the forming is finished, placing the hanging plate in a room for curing for 7d, after the curing is finished, hoisting the hanging plate by using an electric hoist, removing the side mold and the circular wood mold, and after the mold removal is finished, obtaining the white UHPC hollowed-out decorative hanging plate.

Example two:

in the first embodiment, the following steps are added:

the preferable component proportion in the first step is as follows: 65 parts of white cement, 10 parts of mineral powder, 17 parts of silica fume, 110 parts of quartz sand, 20 parts of quartz powder, 1.3 parts of high-performance polycarboxylic acid shrinkage reducing agent, 8 parts of expanding agent, 0.5 part of shrinkage reducing agent, 16 parts of water and 14 parts of steel fiber.

Adding white cement, mineral powder, silica fume, an expanding agent, quartz sand and quartz powder into a stirrer, stirring for 5-8min, then adding a shrinkage reducing agent, a high-performance polycarboxylic acid shrinkage reducing agent and water simultaneously, and continuing to stir for 8-15 min; then adding steel fiber, continuing stirring for 8-12min to obtain UHPC, firstly performing hollow pattern design before production, and marking the position of a round wood mold on a steel mold table by a pencil according to the designed pattern; after marking is finished, a release agent is coated on the steel mould table back and forth, after the release agent is dried in the air, a single-layer reinforcing mesh 1 is arranged according to the position of the hollow hole 4, and meanwhile, a circular wood mould and a sleeve 3 are arranged; after the arrangement is finished, sealant is applied to the contact part of the circular wood mould and the steel mould table, so that the circular wood mould and the steel mould table are combined more firmly; after the sealant is completely cured, pouring the UHPC base layer 2 at one time, starting a vibrating table to fully tap for 15-30s, ensuring that the UHPC base layer 2 is fully filled between a steel mould table and a round wood mould and fully removing bubbles; and after the forming is finished, placing the hanging plate in a room for curing for 7d, after the curing is finished, hoisting the hanging plate by using an electric hoist, removing the side mold and the circular wood mold, and after the mold removal is finished, obtaining the white UHPC hollowed-out decorative hanging plate.

Example three:

in the second embodiment, the following steps are added:

the white cement in the first step adopts 525-grade white ordinary portland cement; the model of the mineral powder is S110 grade; the average particle size of the silicon ash is 0.15-0.20 mu m, and the content of silicon dioxide is more than 90%; the quartz sand comprises three particle grades of coarse particle size sand (1.18-0.60 mm), medium particle size sand (0.60-0.30 mm) and fine particle size sand (0.30-0.15 mm), and the weight is as follows: 4: 3, blending in proportion; the quartz powder is 325-mesh grade, and the average particle size is 52 mu m; the appearance of the high-performance polycarboxylic acid shrinkage reducing agent is white powdery solid, the solid content is 23.5 percent, and the water reducing rate is 35 percent; the expanding agent is sulphoaluminate expanding agent, the 7d restricted expansion rate in water is more than 0.030 percent, and the 21d restricted expansion rate in air is more than-0.010 percent; the shrinkage reducing agent is a polyether shrinkage reducing additive, is a light white turbid liquid and can be mixed with water in any proportion; the steel fiber is a straight steel fiber with the length of 13mm and the diameter of 0.22 mm.

Adding white cement, mineral powder, silica fume, an expanding agent, quartz sand and quartz powder into a stirrer, stirring for 5-8min, then adding a shrinkage reducing agent, a high-performance polycarboxylic acid shrinkage reducing agent and water simultaneously, and continuing to stir for 8-15 min; then adding steel fiber, continuing stirring for 8-12min to obtain UHPC, firstly performing hollow pattern design before production, and marking the position of a round wood mold on a steel mold table by a pencil according to the designed pattern; after marking is finished, a release agent is coated on the steel mould table back and forth, after the release agent is dried in the air, a single-layer reinforcing mesh 1 is arranged according to the position of the hollow hole 4, and meanwhile, a circular wood mould and a sleeve 3 are arranged; after the arrangement is finished, sealant is applied to the contact part of the circular wood mould and the steel mould table, so that the circular wood mould and the steel mould table are combined more firmly; after the sealant is completely cured, pouring the UHPC base layer 2 at one time, starting a vibrating table to fully tap for 15-30s, ensuring that the UHPC base layer 2 is fully filled between a steel mould table and a round wood mould and fully removing bubbles; and after the forming is finished, placing the hanging plate in a room for curing for 7d, after the curing is finished, hoisting the hanging plate by using an electric hoist, removing the side mold and the circular wood mold, and after the mold removal is finished, obtaining the white UHPC hollowed-out decorative hanging plate.

Example four:

in the third embodiment, the following steps are added:

the stirrer in the second step is a planetary stirrer.

Adding white cement, mineral powder, silica fume, an expanding agent, quartz sand and quartz powder into a stirrer, stirring for 5-8min, then adding a shrinkage reducing agent, a high-performance polycarboxylic acid shrinkage reducing agent and water simultaneously, and continuing to stir for 8-15 min; then adding steel fiber, continuing stirring for 8-12min to obtain UHPC, firstly performing hollow pattern design before production, and marking the position of a round wood mold on a steel mold table by a pencil according to the designed pattern; after marking is finished, a release agent is coated on the steel mould table back and forth, after the release agent is dried in the air, a single-layer reinforcing mesh 1 is arranged according to the position of the hollow hole 4, and meanwhile, a circular wood mould and a sleeve 3 are arranged; after the arrangement is finished, sealant is applied to the contact part of the circular wood mould and the steel mould table, so that the circular wood mould and the steel mould table are combined more firmly; after the sealant is completely cured, pouring the UHPC base layer 2 at one time, starting a vibrating table to fully tap for 15-30s, ensuring that the UHPC base layer 2 is fully filled between a steel mould table and a round wood mould and fully removing bubbles; and after the forming is finished, placing the hanging plate in a room for curing for 7d, after the curing is finished, hoisting the hanging plate by using an electric hoist, removing the side mold and the circular wood mold, and after the mold removal is finished, obtaining the white UHPC hollowed-out decorative hanging plate.

Example five:

in the fourth example, the following steps were added:

and C, processing the specific size of the circular wood mold in the step B according to the size of the hollow hole 4, and binding, connecting and fixing the sleeve 3 and the single-layer reinforcing mesh 1.

Adding white cement, mineral powder, silica fume, an expanding agent, quartz sand and quartz powder into a stirrer, stirring for 5-8min, then adding a shrinkage reducing agent, a high-performance polycarboxylic acid shrinkage reducing agent and water simultaneously, and continuing to stir for 8-15 min; then adding steel fiber, continuing stirring for 8-12min to obtain UHPC, firstly performing hollow pattern design before production, and marking the position of a round wood mold on a steel mold table by a pencil according to the designed pattern; after marking is finished, a release agent is coated on the steel mould table back and forth, after the release agent is dried in the air, a single-layer reinforcing mesh 1 is arranged according to the position of the hollow hole 4, and meanwhile, a circular wood mould and a sleeve 3 are arranged; after the arrangement is finished, sealant is applied to the contact part of the circular wood mould and the steel mould table, so that the circular wood mould and the steel mould table are combined more firmly; after the sealant is completely cured, pouring the UHPC base layer 2 at one time, starting a vibrating table to fully tap for 15-30s, ensuring that the UHPC base layer 2 is fully filled between a steel mould table and a round wood mould and fully removing bubbles; and after the forming is finished, placing the hanging plate in a room for curing for 7d, after the curing is finished, hoisting the hanging plate by using an electric hoist, removing the side mold and the circular wood mold, and after the mold removal is finished, obtaining the white UHPC hollowed-out decorative hanging plate.

Example six:

in the fifth example, the following steps were added:

and C, embedding a magnet at the bottom of the circular wood mould in the step C to ensure that the wood mould does not displace in the concrete pouring process.

Adding white cement, mineral powder, silica fume, an expanding agent, quartz sand and quartz powder into a stirrer, stirring for 5-8min, then adding a shrinkage reducing agent, a high-performance polycarboxylic acid shrinkage reducing agent and water simultaneously, and continuing to stir for 8-15 min; then adding steel fiber, continuing stirring for 8-12min to obtain UHPC, firstly performing hollow pattern design before production, and marking the position of a round wood mold on a steel mold table by a pencil according to the designed pattern; after marking is finished, a release agent is coated on the steel mould table back and forth, after the release agent is dried in the air, a single-layer reinforcing mesh 1 is arranged according to the position of the hollow hole 4, and meanwhile, a circular wood mould and a sleeve 3 are arranged; after the arrangement is finished, sealant is applied to the contact part of the circular wood mould and the steel mould table, so that the circular wood mould and the steel mould table are combined more firmly; after the sealant is completely cured, pouring the UHPC base layer 2 at one time, starting a vibrating table to fully tap for 15-30s, ensuring that the UHPC base layer 2 is fully filled between a steel mould table and a round wood mould and fully removing bubbles; and after the forming is finished, placing the hanging plate in a room for curing for 7d, after the curing is finished, hoisting the hanging plate by using an electric hoist, removing the side mold and the circular wood mold, and after the mold removal is finished, obtaining the white UHPC hollowed-out decorative hanging plate.

Example seven:

in example six, the following steps were added:

after the white UHPC hollowed-out decorative hanging plate is assembled, the sealing glue is required to be tied at the abutted seam position for processing.

Adding white cement, mineral powder, silica fume, an expanding agent, quartz sand and quartz powder into a stirrer, stirring for 5-8min, then adding a shrinkage reducing agent, a high-performance polycarboxylic acid shrinkage reducing agent and water simultaneously, and continuing to stir for 8-15 min; then adding steel fiber, continuing stirring for 8-12min to obtain UHPC, firstly performing hollow pattern design before production, and marking the position of a round wood mold on a steel mold table by a pencil according to the designed pattern; after marking is finished, a release agent is coated on the steel mould table back and forth, after the release agent is dried in the air, a single-layer reinforcing mesh 1 is arranged according to the position of the hollow hole 4, and meanwhile, a circular wood mould and a sleeve 3 are arranged; after the arrangement is finished, sealant is applied to the contact part of the circular wood mould and the steel mould table, so that the circular wood mould and the steel mould table are combined more firmly; after the sealant is completely cured, pouring the UHPC base layer 2 at one time, starting a vibrating table to fully tap for 15-30s, ensuring that the UHPC base layer 2 is fully filled between a steel mould table and a round wood mould and fully removing bubbles; and after the forming is finished, placing the hanging plate in a room for curing for 7d, after the curing is finished, hoisting the hanging plate by using an electric hoist, removing the side mold and the circular wood mold, and after the mold removal is finished, obtaining the white UHPC hollowed-out decorative hanging plate.

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