CN115159916A - Light heat-insulation cement fiberboard and preparation method thereof - Google Patents
Light heat-insulation cement fiberboard and preparation method thereof Download PDFInfo
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- CN115159916A CN115159916A CN202210769359.XA CN202210769359A CN115159916A CN 115159916 A CN115159916 A CN 115159916A CN 202210769359 A CN202210769359 A CN 202210769359A CN 115159916 A CN115159916 A CN 115159916A
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- cement
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- board
- fly ash
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- 239000004568 cement Substances 0.000 title claims abstract description 79
- 239000011094 fiberboard Substances 0.000 title claims abstract description 35
- 238000009413 insulation Methods 0.000 title abstract description 7
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 239000000835 fiber Substances 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000002245 particle Substances 0.000 claims abstract description 20
- 238000004321 preservation Methods 0.000 claims abstract description 19
- 239000010881 fly ash Substances 0.000 claims abstract description 15
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 13
- 239000004743 Polypropylene Substances 0.000 claims abstract description 11
- -1 polypropylene Polymers 0.000 claims abstract description 11
- 229920001155 polypropylene Polymers 0.000 claims abstract description 11
- 239000003365 glass fiber Substances 0.000 claims description 24
- 239000002002 slurry Substances 0.000 claims description 24
- 239000004744 fabric Substances 0.000 claims description 23
- 238000003756 stirring Methods 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 230000000740 bleeding effect Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 238000005204 segregation Methods 0.000 claims description 6
- 229920006389 polyphenyl polymer Polymers 0.000 claims description 5
- 230000009970 fire resistant effect Effects 0.000 claims description 3
- 239000011398 Portland cement Substances 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims description 2
- 238000005187 foaming Methods 0.000 claims description 2
- 238000009499 grossing Methods 0.000 claims description 2
- 239000004570 mortar (masonry) Substances 0.000 claims description 2
- 238000005034 decoration Methods 0.000 abstract description 7
- 239000011083 cement mortar Substances 0.000 abstract description 5
- 239000008187 granular material Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 10
- 239000002344 surface layer Substances 0.000 description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
- 229910052918 calcium silicate Inorganic materials 0.000 description 3
- 239000000378 calcium silicate Substances 0.000 description 3
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 229910052602 gypsum Inorganic materials 0.000 description 3
- 239000010440 gypsum Substances 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention belongs to the technical field of assembly type building wall decoration engineering, and particularly relates to a light heat-preservation cement fiber board and a preparation method thereof, aiming at solving the problems of large volume, poor heat preservation performance and poor bonding performance with cement mortar of the existing building decoration board. The light heat-preservation cement fiberboard comprises the following components in parts by weight: 50-60 parts of 42.5 parts of cement, 10-20 parts of secondary fly ash, 0.7-1.1 parts of EPS particles, 0.6-0.8 part of high-performance water reducing agent, 0.3-0.5 part of polypropylene fibers and 15-20 parts of water. This cement fiberboard mixes the volume through control EPS granule and cement, when satisfying panel intensity, has reduced the coefficient of heat conductivity of panel, has strengthened the thermal insulation performance of panel, and because the fibreboard is the cement base, its cement mortar with later stage architectural surface has fine adhesion.
Description
Technical Field
The invention belongs to the technical field of assembly type building wall decoration engineering, and particularly relates to a light heat-insulation cement fiberboard and a preparation method thereof.
Background
Most of the building decoration boards in the current market are gypsum boards, glass magnesium boards, calcium silicate boards, pressure cement fiber boards and the like. The application range of the gypsum board and the glass magnesium board is greatly limited due to the lower strength of the gypsum board and the glass magnesium board. The calcium silicate board and the pressure cement fiberboard usually need a large-scale press machine due to complex manufacturing processes, the manufacturing cost is high, the calcium silicate board cannot be used outdoors, the pressure cement fiberboard is too high in strength and large in volume weight, the use and the installation are inconvenient, the two boards do not have heat insulation, the boards are prone to cracking after being heated at a high temperature on a single surface, and the boards cannot be used for structural decoration with fireproof protection requirements. The plates mostly do not adopt cement bases, and the adhesion with cement mortar and the like of later-period decorative surface layers is poor.
Disclosure of Invention
The invention provides a light heat-preservation cement fiber board and a preparation method thereof, and aims to solve the problems that the existing board for architectural decoration has large volume weight, poor heat preservation performance and poor bonding performance with cement mortar.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a light heat-preservation cement fiberboard preparation material comprises the following components in parts by weight: 50-60 parts of 42.5 parts of cement, 10-20 parts of secondary fly ash, 0.7-1.1 parts of EPS particles, 0.6-0.8 part of high-performance water reducing agent, 0.3-0.5 part of polypropylene fibers and 15-20 parts of water.
Furthermore, the 42.5 cement is P.042.5 ordinary portland cement.
Furthermore, the 28-day mortar compressive strength of the 42.5 cement is not lower than 48MPa, and the water consumption for the standard consistency of the cement is not more than 26 percent.
Further, the fly ash is full-spherical ultrafine fly ash and has the bulk density of 800-1000kg/m 3 。
Furthermore, the EPS particles are made of fire-resistant grade B1 polyphenyl particles and are formed by foaming F303 polyphenyl particles.
The method for preparing the light heat-preservation cement fiber board comprises the following steps:
(1) Pouring 42.5 cement, secondary fly ash, EPS particles and polypropylene fibers into a stirrer, uniformly stirring, adding water and a high-performance water reducing agent, stirring without segregation and bleeding, pouring into a mold with a layer of glass fiber mesh cloth laid at the bottom, and obtaining cement fiber slurry;
(2) And (2) smoothing the surface of the cement fiber slurry obtained in the step (1), laying a layer of glass fiber gridding cloth on the surface of the cement fiber slurry, pressing the glass fiber gridding cloth into the cement fiber slurry, and maintaining to obtain the light heat-preservation cement fiber board.
Further, after the 42.5 cement, the secondary fly ash, the EPS particles and the polypropylene fibers are poured into the stirrer in the step (1), the stirring time is at least 3 minutes before the high-performance water reducing agent is added.
Further, the stirring time after adding water and the high performance water reducing agent in step (1) is at least 2 minutes.
Furthermore, the glass fiber mesh cloth adopts anti-cracking alkali-resistant glass fiber mesh cloth. Preferably, the glass fiber mesh has a mesh size of 5 x 5mm.
Further, the curing conditions in the step (2) are normal temperature or steam pressure curing, the mold is removed after curing for at least 1 day, and the product is delivered after curing for at least 28 days.
The standard board of the light heat-preservation cement fiberboard prepared by the method has the length of 2400mm, the width of 1200mm and the thickness of 5-20mm, and the size of the die is determined according to the size of the light heat-preservation cement fiberboard prepared by the need.
The beneficial effects of the light heat-preservation cement fiberboard and the preparation method thereof are analyzed as follows:
1. according to the invention, the type and the proportion of the fiber board configuration material are improved, and the mixing amount of the low-thermal-conductivity material EPS particles is controlled, so that the thermal conductivity of the board is reduced while the strength of the board is not greatly reduced, and the thermal insulation performance of the board is enhanced;
2. the glass fiber mesh cloth is arranged in the inner surface layer and the outer surface layer of the light heat-insulation cement fiberboard, so that the external temperature difference can be resisted, the heat-insulation waterproof effect is achieved, and the sound can be effectively isolated;
3. by controlling the cement mixing amount, the plate not only ensures the strength of the plate serving as an outer wall panel, but also is convenient for mounting and punching screws; meanwhile, the volume weight of the plate is reduced by adding EPS particles, and the plate is ensured to have A-grade fireproof performance by controlling the mixing amount of fire-resistant grade B1-grade polyphenyl particles;
4. the fiber board is cement-based and has good bonding property with cement mortar of a later-period decorative surface layer;
5. the fiber board is easy to obtain the configuration material and low in price;
6. the fiberboard is prepared by adopting two curing modes of normal temperature curing or autoclaved curing, the manufacturing process is simple, the requirement on the production environment is low, and no waste water or waste material is generated in the production process.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention, as the invention will be described in detail, with reference to the following detailed description.
Thus, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The experimental methods used in the following examples are all conventional methods unless otherwise specified; reagents, materials and the like used in the following examples are commercially available unless otherwise specified.
Example 1:
(1) Pouring 500kg of 42.5 cement, 100kg of secondary fly ash, 7kg of EPS particles and 3kg of polypropylene fibers into a stirrer, stirring for 3min, adding 150kg of water and 6kg of a high-performance water reducing agent, stirring for 2min without segregation and bleeding, and pouring into a mold with a layer of glass fiber mesh cloth laid at the bottom to obtain cement fiber slurry;
(2) And (2) trowelling the surface of the cement fiber slurry obtained in the step (1) by using a trowel, laying a layer of glass fiber gridding cloth on the surface of the cement fiber slurry, pressing the glass fiber gridding cloth into the cement fiber slurry, and curing for 28 days to obtain the light heat-preservation cement fiber board marked as C1.
Example 2:
(1) Pouring 550kg of cement 42.5, 150kg of secondary fly ash, 9kg of EPS particles and 3.8kg of polypropylene fibers into a stirrer, stirring for 3min, adding 170kg of water and 7kg of a high-performance water reducing agent, stirring for 2min without segregation and bleeding, and pouring into a mold with a layer of glass fiber mesh cloth laid at the bottom to obtain cement fiber slurry;
(2) And (2) troweling the surface of the cement fiber slurry obtained in the step (1) by using a trowel, laying a layer of glass fiber gridding cloth on the surface of the cement fiber slurry, pressing the glass fiber gridding cloth into the cement fiber slurry, and curing for 28 days to obtain the light heat-preservation cement fiber board marked as C2.
Example 3:
(1) Pouring 600kg of 42.5 cement, 200kg of secondary fly ash, 11kg of EPS particles and 4.2kg of polypropylene fibers into a stirrer, stirring for 3min, adding 184kg of water and 8kg of a high-performance water reducing agent, stirring for 2min without segregation and bleeding, and pouring into a mold with a layer of glass fiber mesh cloth laid at the bottom to obtain cement fiber slurry;
(2) And (2) troweling the surface of the cement fiber slurry obtained in the step (1) by using a trowel, then laying a layer of glass fiber gridding cloth on the surface of the cement fiber slurry, pressing the glass fiber gridding cloth into the cement fiber slurry, and curing for 28 days to obtain the light heat-preservation cement fiber board marked as C3.
Comparative example 1:
(1) Pouring 600kg of 42.5 cement, 200kg of secondary fly ash and 4.2kg of polypropylene fiber into a stirrer, stirring for 3min, adding 184kg of water and 8kg of water reducing agent, stirring for 2min without segregation and bleeding, and pouring into a mold with a layer of glass fiber mesh cloth laid at the bottom to obtain cement fiber slurry;
(2) And (2) troweling the surface of the cement fiber slurry obtained in the step (1) by using a trowel, then laying a layer of glass fiber gridding cloth on the surface of the cement fiber slurry, pressing the glass fiber gridding cloth into the cement fiber slurry, and curing for 28 days to obtain a cement fiber board marked as D1.
The volume weight and strength indexes of the light heat-preservation cement fiber board prepared by each embodiment and the comparative example are shown in the following table:
| detecting items | C1 | C2 | C3 | D1 |
| Wet volume weight (Kg/m) 3 ) | 1112 | 1223 | 1331 | 2416 |
| Dry volume weight (Kg/m) 3 ) | 1109 | 1214 | 1312 | 2401 |
| 28d flexural strength/Mpa | 11.6 | 12.6 | 14.8 | 22.2 |
| Heat transfer coefficient/(w/m) 2 ·K) | 0.36 | 0.41 | 0.45 | 0.8 |
As can be seen from the data in the table, the 28d flexural strength of the cement fiber boards prepared in the three examples meets the specification requirements of the fiber cement flat board part 1, namely, the asbestos-free fiber cement flat board (JC/T412.1-2018), and meets the strength requirement of the board for architectural decoration.
Compared with the example 3, the cement fiberboard prepared by the comparative example has the advantages that the heat transfer coefficient is obviously improved, the heat preservation performance is reduced, and the wet volume weight and the dry volume weight are both obviously increased without adding EPS particles.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (10)
1. The light heat-preservation cement fiberboard is characterized in that the light heat-preservation cement fiberboard is prepared from the following materials in parts by weight:
50-60 parts of 42.5 parts of cement, 10-20 parts of secondary fly ash, 0.7-1.1 parts of EPS particles, 0.6-0.8 part of high-performance water reducing agent, 0.3-0.5 part of polypropylene fibers and 15-20 parts of water.
2. The lightweight thermal insulating cement fiber board as claimed in claim 1,
the 42.5 cement is P.042.5 ordinary portland cement.
3. The lightweight thermal insulating cement fiber board as claimed in claim 2,
the 28-day mortar compressive strength of the 42.5 cement is not lower than 48MPa, and the water consumption for the standard consistency is not more than 26%.
4. The lightweight thermal insulating cement fiber board as claimed in claim 1,
the fly ash is full-spherical ultrafine fly ash with the bulk density of 800-1000kg/m 3 。
5. The lightweight thermal insulating cement fiber board as claimed in claim 1,
the EPS particles are fire-resistant grade B1 polyphenyl particles, and are formed by foaming F303 polyphenyl particles.
6. A method for manufacturing a lightweight insulating cement fibre board as claimed in any of claims 1 to 5, characterised by the steps of:
(1) Pouring the 42.5 cement, the secondary fly ash, the EPS particles and the polypropylene fibers into a stirrer, uniformly stirring, adding water and the high-performance water reducing agent, stirring without segregation and bleeding, and pouring into a mold or a production line with a layer of glass fiber mesh cloth laid at the bottom to obtain cement fiber slurry;
(2) And (2) smoothing the surface of the cement fiber slurry obtained in the step (1), then laying a layer of glass fiber gridding cloth on the surface of the cement fiber slurry, pressing the glass fiber gridding cloth into the cement fiber slurry, and maintaining to obtain the light heat-preservation cement fiber board.
7. The method of claim 6,
and (2) after the 42.5 cement, the secondary fly ash, the EPS particles and the polypropylene fibers are poured into a stirrer in the step (1), stirring for at least 3 minutes before the high-performance water reducing agent is added.
8. The method of claim 7,
and (2) stirring for at least 2 minutes after the water and the high-performance water reducing agent are added in the step (1).
9. The method of claim 6,
the glass fiber mesh cloth is anti-crack alkali-resistant glass fiber mesh cloth.
10. The method of claim 6,
and (3) curing at normal temperature or steam pressure in the step (2), removing the mold after curing for at least 1 day, and leaving the factory after curing for at least 28 days.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210769359.XA CN115159916A (en) | 2022-06-30 | 2022-06-30 | Light heat-insulation cement fiberboard and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210769359.XA CN115159916A (en) | 2022-06-30 | 2022-06-30 | Light heat-insulation cement fiberboard and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115159916A true CN115159916A (en) | 2022-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210769359.XA Pending CN115159916A (en) | 2022-06-30 | 2022-06-30 | Light heat-insulation cement fiberboard and preparation method thereof |
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| Country | Link |
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| CN (1) | CN115159916A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797299A (en) * | 2012-07-11 | 2012-11-28 | 江苏尼高科技有限公司 | Insulation board made of fiber reinforced composites and preparation method of insulation board |
| CN104119046A (en) * | 2013-04-25 | 2014-10-29 | 江苏省苏安能节能建材科技有限公司 | Cement-based polystyrene material and insulation board production process based thereon |
| CN111574240A (en) * | 2020-04-28 | 2020-08-25 | 四川君璜建材有限公司 | Production method of polyphenyl particle cement reinforced composite wallboard |
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2022
- 2022-06-30 CN CN202210769359.XA patent/CN115159916A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797299A (en) * | 2012-07-11 | 2012-11-28 | 江苏尼高科技有限公司 | Insulation board made of fiber reinforced composites and preparation method of insulation board |
| CN104119046A (en) * | 2013-04-25 | 2014-10-29 | 江苏省苏安能节能建材科技有限公司 | Cement-based polystyrene material and insulation board production process based thereon |
| CN111574240A (en) * | 2020-04-28 | 2020-08-25 | 四川君璜建材有限公司 | Production method of polyphenyl particle cement reinforced composite wallboard |
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Application publication date: 20221011 |