TWI608151B - Damper floor plate and damper floor plate manufacturing method - Google Patents

Description

The construction method of damper floor and damper floor

The invention relates to a method for constructing a floor and a floor, and in particular to a method for applying a damper floor and a soundproof floor.

In the modern urbanization space, due to the limited land resources, the buildings are facing the development of high-level and intensive. With the changes of the times, people not only need a house, but further need a safer and quieter living space. However, in the home life, it is inevitable to create or produce related sounds, because the sound is the sound generated by the vibration of the object, transmitted to the ear of the human body through the air, and then transmitted to the brain through the auditory nerve. Therefore, between the floor and the floor, the noise of the whole family is often affected by the falling of objects, the beating of children, the contact of sports equipment with the ground or the drainage of the toilet.

However, under the difficulty of changing the rigidity of the main structure of the building, the floor decoration materials are bound to be the best means to improve the noise environment. The current method used to improve the floor noise is nothing more than the use of thick floor slabs, but The thicker the slab, partition wall and building exterior wall are, the more steel bars are needed, and the thicker slab construction method achieves better sound insulation, however, in view of the earthquake, the overall construction The higher the weight, the greater the risk of collapse, so the construction Not ideal, so the thick floor construction method will make the indoor space limited and unsafe and economical. Or, there are builders who try to improve from the path of pipe change or ceiling sound insulation material, but this method can not actually solve the problem of noise interference between floors.

Therefore, how to eliminate the problem of mutual noise interference between floors is an important issue in the industry.

It is an object of the present invention to provide an innovative damper floor and a method of making a damper floor panel to eliminate the problem of mutual noise interference between floors.

The working method of the damper floor of the present invention comprises the following steps. A sounding layer is laid on the first floor structure, and the soundproofing layer includes a plurality of holes. Set a plurality of anti-vibration rubber pads in a plurality of holes. Lay a plastic layer over the sound-making layer. Lay a little welded wire mesh over the plastic layer. Lay a cement mortar layer on top of the spot welded steel wire mesh.

The damper floor panel of the invention comprises a damper layer, a plastic layer, a spot welded steel mesh and a cement mortar laminate. The damper layer is arranged on the floor structure, and the sound-damping layer comprises a plurality of holes and a plurality of anti-vibration rubber pads. The anti-vibration rubber pad is provided in a plurality of holes. The plastic layer is placed on the sound-damping layer. The spot welded steel wire mesh is placed on the plastic layer. The cement mortar laminate is placed on the spot welded steel mesh.

In an embodiment of the invention, before the step of laying the sound-damping layer on the floor structure, the working method of the sound-damping floor comprises the following steps. A smoothing process is performed on the floor structure.

In an embodiment of the invention, the damper layer is a plurality of high density styrofoam After the step of joining the anti-vibration rubber pad to the plurality of holes, the working method of the damper floor further comprises the following steps. A stitching process is carried out at the junction of a plurality of high-density styrofoam plates.

In an embodiment of the invention, after the step of laying the plastic layer on the sound-damping layer, the working method of the sound-damping floor further comprises the following steps. Place the spacer on the corresponding anti-vibration rubber pad.

In an embodiment of the invention, the plastic layer is formed by laminating a plurality of plastic sheets, and the step of laying the plastic layer on the sound-damping layer is performed. The working method of the sound-proof floor board comprises the following steps. Gluing the plurality of plastic sheets.

In an embodiment of the invention, after the step of laying the cement mortar layer on the spot welded steel mesh, the working method of the soundproof floor slab comprises the following steps. A modified facestock layer is laid over the cement mortar laminate.

In an embodiment of the invention, the modified face material layer is made of quartz brick, marble or wood floor.

In an embodiment of the invention, the step of laying the cement mortar layer on the spot welded steel mesh, the method for applying the soundproof floor slab comprises the following steps. A concrete slurry is prepared, and the concrete slurry is a mixture of cement and mortar in a ratio of 1:3. A grouting process is performed to deposit the concrete slurry onto the spot welded steel mesh. A drying process is performed to dry the concrete slurry into a cement mortar laminate.

In an embodiment of the invention, the floor structure is connected to a side wall of the floor, and before the step of laying the sound-damping layer on the floor structure, the working method of the sound-proof floor comprises the following steps. A painting process is performed on the side walls of the floor to form a stucco layer. layout A layer of pearl is layered on the stucco layer.

In an embodiment of the invention, the damper floor further includes a plurality of blocks, and the blocks are located on the corresponding anti-vibration rubber pads.

In an embodiment of the invention, the plastic layer in the damper floor comprises a plurality of plastic sheets and a glue member, and the plurality of plastic cloth sheets are superposed on each other, and the glue parts are glued to overlap the plurality of plastic cloths.

In an embodiment of the invention, the damper floor further comprises a decorative face material layer, and the modified face material layer is disposed on the cement mortar layer.

In an embodiment of the invention, the cement mortar layer in the damper floor comprises a mixture of cement and mortar in a ratio of 1:3.

In an embodiment of the invention, the damper floor further comprises a stucco layer and a pearl layer. The stucco layer is located on the side wall of the floor. The pearl layer is placed on top of the stucco layer.

Based on the above, in the manufacturing method of the damper floor panel and the damper floor panel of the present invention, the sound-damping layer is an elastic medium interposed between the modified face material layer and the floor structure body, as a buffer layer, by the sound-making layer To reduce any noise between the floors, such as sound waves generated by airborne sound, structure borne sound, and floor impact sounds (including light and heavy shock), to eliminate noise between floors. The purpose of mutual interference.

20‧‧‧ Floor structure

21‧‧‧floor

22‧‧‧floor side walls

100‧‧‧ vocal floor

110‧‧‧The sound layer

112‧‧‧High density styrofoam board

114‧‧‧ holes

116‧‧‧Anti-vibration rubber mat

118‧‧‧Seal

120‧‧‧Plastic layer

122‧‧‧Plastic cloth

124‧‧‧Glued parts

130‧‧‧ pads

140‧‧‧ spot welded steel wire mesh

150‧‧‧cement mortar layer

160‧‧‧Modified surface layer

170‧‧‧Paint layer

180‧‧‧ pearl layer

S100‧‧‧How to make vocal floor slabs

S110~S210‧‧‧Steps

S152‧‧‧Steps

S162‧‧‧Steps

S192~S196‧‧‧Steps

1 is a partial perspective cross-sectional view of a damper floor panel of the present invention applied to a floor slab structure.

2 is a schematic view of an embodiment of the damper layer of FIG. 1.

3 is a schematic view of an embodiment of the plastic layer of FIG. 1.

Figure 4 is a flow chart showing the construction method of the damper floor panel of the present invention.

5 to 13 are schematic views of the construction method corresponding to the damper floor of Fig. 4.

The specific embodiments of the present invention are further described below in conjunction with the drawings and embodiments. The following examples are only used to more clearly illustrate the technical solutions of the present invention, and are not intended to limit the scope of the present invention.

1 is a partial perspective cross-sectional view of a damper floor panel of the present invention applied to a floor slab structure. Please refer to Figure 1.

In the present embodiment, the damper floor 100 is laid on the floor structure 20 of the building. The floor structure 20 is, for example, an RC structure and is connected to the floor side wall 22, for example, as a lowering of the bathroom area in the building. To be used as the damper floor 100, the invention is not limited thereto.

The damper floor 100 includes a damper layer 110, a plastic layer 120, a plurality of pads 130, a spot welded wire mesh 140, a cement mortar laminate 150, a modified face material layer 160, a stucco layer 170, and a pearl plate. Layer 180.

The stucco layer 170 is disposed on the floor side wall 22. A pearl layer 180 is disposed on the stucco layer 170. In an application construction embodiment, before the laying, the floor side wall 22 (such as the bathroom light compartment and the wall mud) is powdered to form a stucco layer 170, and the dry concrete residue on the bottom plate 21 of the floor structure 20 is removed. . Next, on the stucco layer 170 of the floor side wall 22 around the application range of the floor structure 20, a pearl board layer 180 having a thickness of 1 cm and a height of 15 cm is adhered to the stucco layer 170. The embodiment does not limit the size of the pearl layer, and can be selected depending on the periphery of the actual application range.

The sound-damping layer 110 is provided on the bottom plate 21 of the floor structure 20. In detail, as shown in FIG. 2, FIG. 2 is a schematic view of an embodiment of the damper layer of FIG. 1. The sound-damping layer 110 includes a plurality of high-density styrofoam plates (Perfect Sound, PS) 112, a plurality of holes 114, a plurality of anti-vibration rubber pads 116, and a sealing member 118.

Taking FIG. 2 as an example, the sound-damping layer 110 is formed by joining four high-density styrofoam plates 112, and each high-density styrofoam plate 112 has a characteristic of high elastic damping. In addition, if an irregularly shaped wall surface is encountered, the high density styrofoam plate 112 can be cut according to actual conditions to conform to the irregularly shaped wall surface, but the high density styrofoam plate 112 can maintain the setting as much as possible. The shape of the four anti-vibration rubber pads 116.

The anti-vibration rubber pad 116 is disposed in the corresponding hole 114. The hole 114 is, for example, a circular hole, and the corresponding anti-vibration rubber pad 116 also adopts a corresponding cylindrical shape, but does not limit the present invention. In an embodiment, The anti-vibration rubber pad 116 has, for example, a diameter of 6 cm and a height of 4.5 cm. However, this embodiment does not limit the size of the anti-vibration rubber pad, and can be selected depending on the actual application range and the adopted high-density styrofoam plate. The seal member 118 is in close contact with the four density styrofoam plates 112, and the seal member 116 is, for example, a tape. In one embodiment, the sound-damping layer 110 has a thickness of 4.5 cm, a length of 120 cm, and a width of 80 cm. However, in other embodiments, the high-density styrofoam may be selected according to the range of the actual floor structure 20. The number of plates 112.

The plastic layer 120 is disposed on the sound-damping layer 110. In detail, as shown in FIG. 3, FIG. 3 is a schematic view of an embodiment of the plastic layer of FIG. The plastic layer 120 includes a plurality of plastic sheets 122 and a glue member 124. The plurality of plastic sheets 122 are laminated one on another, and the glue member 124 is glued to overlap the plurality of plastic sheets 122. The glue member 124 is, for example, a double-sided tape. In an embodiment, For example, the plastic layer 120 has a thickness of 0.1 mm or more, and the plastic cloth 122 overlaps 10 cm or more and is fixed by a bonding member 124 to prevent the cement mortar from flowing in. However, in other embodiments, the size of the actual floor structure 20 can be selected. The thickness of the plastic layer 120.

Please refer to Figure 1. The spacer 130 is located above the corresponding anti-vibration rubber pad 116. Specifically, the spacer 130 is, for example, a cement spacer having a thickness of 4 cm, and the spacers 130 are spaced apart and placed above the corresponding anti-vibration rubber pad 116 in the plastic layer 120. However, in other embodiments, the thickness of the spacer may be selected depending on the extent of the actual floor structure.

The spot welded steel wire mesh 140 is disposed on the plastic layer 130. Specifically, the spot-welded steel mesh 140 is, for example, 4 cm in diameter and 10 cm in pitch, and the spacer 130 is located between the spot-welded steel mesh 140 and the plastic layer 130. If the spot-welded steel mesh 140 is overlapped by 10 cm or more, the wire can be fixed. The spot welded wire mesh 140 can be isolated from the cement mortar laminate 150 by the spacers 130. However, in other embodiments, the shape of the spot welded steel mesh may be selected depending on the extent of the actual floor structure.

The cement mortar laminate 150 is disposed on the spot-welded steel mesh 140. The cement mortar laminate 150 comprises a mixture of cement and mortar in a ratio of 1:3, which is painted and cured for more than 72 hours. The modified face material layer 160 is disposed on the cement mortar layer 150, and the material of the modified face material layer 160 is, for example, quartz brick, marble or wood floor. However, the present invention does not limit this, and the material of the modified face material layer 160 can be Laid by actual user needs.

Under the above configuration, in the damper floor panel 100 of the present invention, the sound-damping layer 110 is interposed between the decorative surface layer 160 and the floor medium 20 to serve as a buffer layer by the sound-damping layer. 110 to reduce any noise between the floors, such as sound waves generated by airborne sound, structural borne sound, and floor impact sounds (including light and weight shock), to achieve a floor space The purpose of noise interference.

The construction method of the damper floor panel of the present invention will be described below by way of drawings.

Figure 4 is a flow chart showing the construction method of the damper floor panel of the present invention. 5 to 13 are schematic views of the construction method corresponding to the damper floor of Fig. 4. Please refer to Figure 4 first. The working method S100 of the damper floor panel of the present invention includes the following steps S110 to S210.

First, in step S110, as shown in FIG. 5, a smoothing process is performed on the floor structure 20 to remove dry concrete debris on the floor 21 of the floor structure 20.

Next, step S120 is performed. As shown in FIG. 6, a stucco process is performed on the floor side wall 22 to form a stucco layer 170.

Next, step S130 is performed to lay a pearl layer 180 on the stucco layer 170 as shown in FIG. In an application construction implementation, a pearl board layer 180 having a thickness of 1 cm and a height of 15 cm is adhered to the stucco layer 170 on the floor side wall 22 around the application range of the floor structure 20, but the embodiment is not a pearl board. The size of the layer is limited and can be selected depending on the periphery of the actual application range.

Next, step S140 is performed. As shown in FIG. 8, a damper layer 110 is laid on the first floor structure 20, wherein the sound-making layer 110 includes a plurality of holes 114.

In detail, as shown in FIG. 2, the sound-damping layer 110 is formed by joining a plurality of high-density styrofoam plates (Perform Sound, PS) 112. In one embodiment, the damper layer 110 has a thickness of, for example, 4.5. The cm, the length is 120 cm and the width is 80 cm, and the number of high-density styrofoam plates 112 can be selected depending on the range of the actual slab structure 20.

Next, step S150 is performed. As shown in FIG. 9, a plurality of anti-vibration rubber pads 116 are disposed in the plurality of holes 114. In one embodiment, the anti-vibration rubber pad 116 has a diameter of 6 cm and a height of 4.5 cm, for example. The embodiment does not limit the size of the anti-vibration rubber pad, depending on the actual application. The range is determined by the high-density styrofoam plate used. In addition, if an irregularly shaped wall surface is encountered, the high density styrofoam plate 112 can be cut according to actual conditions to conform to the irregularly shaped wall surface, but the high density styrofoam plate 112 can maintain the setting as much as possible. The shape of the four anti-vibration rubber pads 116.

After the step S150 of setting the plurality of anti-vibration rubber pads 116 in the plurality of holes 114, the following step S152 is further included. In step S152, a stitching process is performed at a joint of the plurality of high-density styrofoam plates 112. For example, in FIG. 2, the sealing step is to close the joint of the four high-density styrofoam plates 112 by the sealing member 118. In an embodiment, the sealing member 116 is, for example, a tape. This is not limited as long as the high-density styrofoam plate 112 can be sealed to ensure that the high-density styrofoam plates are in a seamless state.

Next, step S160 is performed. As shown in FIG. 10, a plastic layer 120 is laid on the sound-damping layer 110. The step S160 of laying the plastic layer 120 on the sound-damping layer 110 includes the following step S162, and performing step S162 to glue a plurality of plastic cloths 122. Taking FIG. 3 as an example, the plastic layer 120 is formed by laminating a plurality of plastic sheets 122. The glue member 124 is glued to a plurality of plastic sheets 122 where they overlap. In one embodiment, the plastic layer 120 is, for example, laid at a thickness of 0.1 mm or more, and the plastic cloth 122 is overlapped by 10 cm or more and fixed by a bonding member 124 to prevent the cement mortar from flowing in. However, in other embodiments, the actual floor structure 20 can be seen. The thickness of the plastic layer 120 is selected according to the range of the size. However, this embodiment does not limit this, as long as the plastic cloth can be combined to prevent the cement mortar from flowing in.

Next, in step S170, the spacer 130 is placed on the corresponding anti-vibration rubber pad 116. As shown in FIG. 11, the spacers 130 are placed on the corresponding anti-vibration rubber pads 116 at intervals. However, the present invention does not limit the number and arrangement of the spacers 130. However, in other embodiments, the thickness and arrangement position of the spacer may be selected according to the range of the actual floor structure.

Next, step S180 is performed, as shown in FIG. 12, a little welded steel mesh 140 is laid over the plastic layer 120. Specifically, the spot-welded steel mesh 140 is, for example, 4 cm in diameter and 10 cm in pitch, and the spacer 130 is located between the spot-welded steel mesh 140 and the plastic layer 130. If the spot-welded steel mesh 140 is overlapped by 10 cm or more, the wire can be fixed. The spot welded wire mesh 140 can be isolated from the cement mortar laminate 150 by the spacers 130. However, in other embodiments, the shape of the spot welded steel mesh may be selected depending on the extent of the actual floor structure.

Next, step S190 is performed, as shown in FIG. 13, a cement mortar laminate 150 is laid over the spot welded steel mesh 140. The step of laying the cement mortar laminate 150 on the spot welded steel mesh 140 includes the following steps S192 to S196.

Step S192 is performed to prepare a concrete slurry, wherein the concrete slurry is a mixture of cement and mortar in a ratio of 1:3.

In step S194, a grouting process is performed to deposit the concrete slurry onto the spot welded steel mesh 140.

In step S196, a drying process is performed to dry the concrete slurry into a cement mortar laminate 150.

In this way, the flow of the working method S100 of the damper floor is substantially completed. Next, the manufacturing method S100 of the damper floor further includes the following step S210. Step S210 is performed. As shown in FIG. 1 , a modified face material layer 160 is laid on the cement mortar laminate 150. The material of the modified face material layer 160 is, for example, quartz brick, marble or wood floor. However, the present invention does not To be limited, the material of the modified face material layer 160 can be laid according to actual user needs.

The comparison results of the construction method S100 of the damper floor board of the present invention and the construction method of the conventional technique are observed by the following Table 1.

It can be seen from Table 1 that the S100 of the damper floor proposed by the present invention can effectively reduce the sound waves generated by airborne sound, the floor impact sounds (including light and weight shock sounds) and no indirect water flow. Noise such as structure borne sound, and the construction method S100 of the damper floor proposed by the present invention is relatively easy for construction maintenance or area change.

The results of the sounding test comparison between the damper floor panel 100 produced by the working method S100 of the damper floor board of the present invention and the conventional damper technique are observed by the following Table 2 for the sound impact of the floor impact sound (including light and weight shock sounds).

Table II.

It should be noted that the traditional floor slab (bare board) directly connects the slab directly to the slab structure, and there is no medium or elastic material as a buffer surface. Therefore, between the floor and the floor The transmission of the sound will be obvious. For the weight impact test and the lightweight impact test made in Table 2, the results of the traditional floor (bare board) radio test are used as a benchmark, and then the Japanese high-rise wooden floor and the present invention are compared. The sounding test result of the proposed damper floor 100.

The weight impact test refers to a sound generated by the behavior of a weight-heavy item falling or a person's intense activity, that is, a floor impact sound. For example, basketball falls, children bounce or run, and the sound of heavy, soft things. It can be seen from Table 2 that in the weight impact test, the damper floor panel 100 proposed by the present invention does have an actual insulation effect on the weight shock sound.

In addition, for the lightweight impact test, the lightweight tapping machine refers to the light that is indirectly transmitted to the downstairs when the object is dropped indoors or moved by the furniture, which is a lightweight impact sound. . For example, high-heeled shoes, table and chair legs, or forks and knives, etc., are relatively hard, lighter items that rub against the floor. It can be seen from Table 2 that in the lightweight impact test, although the influence on the lightweight impact sound can be reduced as well, the damper floor plate proposed by the present invention can reduce the db value more, so the damper floor panel 100 of the present invention is The impact sound of the floor impact of the lightweight impact source is significantly improved, showing the efficacy of the present invention.

In summary, in the working method of the damper floor and the damper floor board of the present invention, the sound-making layer is an elastic medium between the modified surface layer and the floor structure, so that the sound-making layer can serve as a buffer layer. By using the damper layer to reduce any noise between the floors, in order to eliminate the noise interference between the floors.

In addition, the construction method of the damper floor panel proposed by the present invention is relatively easy for construction maintenance or area change.

In addition, compared to the hollow soundproof floor slab (or hollow floor slab) in the conventional technology, The construction method adopted is to install a styrofoam ball that can absorb sound in the floor. After the cement grouting, there will be a hollow effect, thereby weakening the noise. However, the styrofoam ball in the hollow soundproof floor in the conventional technology is not full. The entire floor slab, so the sound insulation effect is still limited, and if the styrofoam ball is not fixed, the pipeline is not emptied or the styrofoam ball is misplaced beside the beam column, the overall seismic resistance of the hollow soundproof floor slab in the conventional technology will be reduced. . In contrast, according to the present invention, the sound-making layer of the damper floor panel of the present invention is entirely composed of a high-density styrofoam board, and the damper layer is interposed between the decorative surface layer and the floor structure to serve as a buffer layer. The sound insulation effect is improved, and the anti-vibration rubber pad is also provided in the high-density styrofoam board, and also has the earthquake-resistant capability. Therefore, the present invention does have problems in improving the hollow sound-proof floor slab in the conventional technology.

The above description is only intended to describe the preferred embodiments or embodiments of the present invention, which are not intended to limit the scope of the present invention. That is, the equivalent changes and modifications made in accordance with the scope of the patent application of the present invention or the scope of the invention are covered by the scope of the invention.

S100‧‧‧How to make vocal floor slabs

S110~S210‧‧‧Steps

Claims (15)

A method for manufacturing a damper floor, comprising the steps of: laying a sound-making layer on a floor structure, wherein the sound-making layer comprises a plurality of holes; and setting a plurality of anti-vibration rubber pads in the plurality of holes; laying a plastic layer is placed on the sound-damping layer; a small welded steel wire mesh is laid on the plastic layer; and a cement mortar is laminated on the spot-welded steel mesh. The method for applying the damper floor according to claim 1, wherein the step of laying the damper layer on the floor structure comprises the following steps: smoothing the floor structure Process. The method for applying the damper floor slab according to claim 1, wherein the damper layer is formed by joining a plurality of high-density styrofoam plates, and the plurality of anti-vibration rubber pads are disposed in the plurality of After the step in the hole, the method further comprises the step of: performing a slitting process at the joint of the plurality of high-density styrofoam plates. The method for applying the damper floor according to claim 1, wherein after the step of laying the plastic layer on the damper layer, the method further comprises the step of: placing the spacer in the corresponding The anti-vibration rubber pad is above. The method for applying the vocal floor slab according to claim 1, wherein the plastic layer is formed by laminating a plurality of plastic sheets, and the step of laying the plastic layer on the dam layer is performed, including The following steps: gluing the plurality of plastic sheets. The method for applying the damper floor according to claim 1, wherein the step of laying the cement mortar on the spot welded steel mesh comprises the steps of: laying a modified surface layer Above the cement mortar laminate. The method for applying the damper floor slab according to claim 1, wherein the step of laying the cement mortar layer on the spot welded steel mesh comprises the steps of: preparing a concrete slurry, wherein The concrete slurry is prepared by mixing cement and mortar in a ratio of 1:3; performing a grouting process, pouring the concrete slurry onto the spot welded steel mesh; and performing a drying process to make the concrete slurry Dry into the cement mortar laminate. The method of applying the damper floor according to claim 1, wherein the floor structure is connected to a side wall of the floor, and before the step of laying the sound-damping layer on the floor structure, the following Step: performing a painting process on the sidewall of the floor to form a stucco layer; and laying a pearl layer on the stucco layer. A damper floor panel comprising: a damper layer disposed on a floor slab structure, wherein the damper layer comprises a plurality of holes and a plurality of anti-vibration rubber pads, and the plurality of anti-vibration rubber pads are disposed on the plurality of a hole; a plastic layer disposed on the sound-damping layer; a spot-welded wire mesh disposed on the plastic layer; and a cement mortar layer disposed on the spot-welded wire mesh. The damper slab according to claim 9, wherein the damper layer comprises a plurality of high-density styrofoam plates and a sealing member, and the plurality of high-density styrofoam plates are joined to each other, and the sealing member is tightly bonded The plurality of high density styrofoam plates are joined. The damper floor board according to claim 9 of the patent application, further comprising: a plurality of blocks, located on the corresponding anti-vibration rubber pad. The damper slab of claim 9, wherein the plastic layer comprises a plurality of plastic sheets and a glue member, the plurality of plastic sheets are superposed on each other, and the glue member is glued to the plurality of plastics. Where the tape overlaps. The damper floor board according to claim 9 , further comprising: a modified surface layer disposed on the cement mortar layer, wherein the modified surface layer is made of quartz brick, marble or wood floor. The damper floor slab according to claim 9, wherein the cement mortar layer comprises cement and mortar mixed in a ratio of 1:3. The damper slab of claim 9, wherein the slab structure is connected to a side wall of the floor, the damper slab further comprises: a stucco layer disposed on the side wall of the floor; and a pearl slab layer disposed on Above the stucco layer.