CN114105551A - Basalt fiber composite rib reinforced light wallboard and preparation method thereof - Google Patents
Basalt fiber composite rib reinforced light wallboard and preparation method thereof Download PDFInfo
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- CN114105551A CN114105551A CN202010884712.XA CN202010884712A CN114105551A CN 114105551 A CN114105551 A CN 114105551A CN 202010884712 A CN202010884712 A CN 202010884712A CN 114105551 A CN114105551 A CN 114105551A
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- 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
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- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/38—Fibrous materials; Whiskers
- C04B14/46—Rock wool ; Ceramic or silicate fibres
- C04B14/4643—Silicates other than zircon
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- 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
- C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B16/04—Macromolecular compounds
- C04B16/08—Macromolecular compounds porous, e.g. expanded polystyrene beads or microballoons
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- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/027—Lightweight materials
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
- E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
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- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
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- 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
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- 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
Abstract
The invention relates to the technical field of building materials, and particularly discloses a basalt fiber composite rib reinforced light wallboard and a preparation method thereof. The basalt fiber composite rib reinforced light wallboard is prepared from the following raw materials: the composite basalt fiber rib grid plate comprises, by weight, 80-100 parts of cement, 20-25 parts of sand, 0.5-1.0 part of flame-retardant polyphenyl particles, 25-40 parts of ceramsite, 10-30 parts of fly ash, 0.5-1.5 parts of early strength water reducing agent and 30-55 parts of water. The basalt fiber composite rib reinforced light wallboard provided by the invention has the advantages of light weight, low heat preservation coefficient, good sound insulation effect, high compressive strength, high bending load resistance and the like; the preparation method of the wallboard has the advantages of simple process, convenience in operation and the like, can be applied to light partition slats for buildings, and has good application prospect and economic value.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to a basalt fiber composite rib reinforced light wallboard and a preparation method thereof.
Background
The industrialization of buildings (including large-scale and wide-range houses) is to use standardized design, industrialized production, assembled construction, informatization management and other methods to build, use and manage the buildings so as to improve the labor productivity of building generation, improve the overall quality of the buildings, reduce the cost and reduce the material consumption. Is a necessary trend of the industrial development of buildings and is a deep revolution of the building industry. The boards of the existing fabricated building wallboard are mostly PC concrete wallboards, the prefabricated concrete wallboards are adopted, and splicing is completed through on-site large-scale mechanical hoisting, but the existing PC prefabricated concrete wallboard is heavy in weight, difficult to transport, high in manufacturing cost and incapable of meeting the existing use requirements due to the fact that large-scale mechanical dispatching is needed on site.
The light wallboard has the characteristics of energy conservation, environmental protection, sound insulation, heat insulation, water resistance, fire resistance, heat preservation, freeze prevention, shock resistance, increased use area, long service life, simple and convenient installation, good processing performance and the like. However, the traditional light composite wallboard has the problems of low mechanical strength, low bending load resistance and the like.
The basalt fiber is a continuous fiber which is formed by melting basalt stone at 1450-1500 ℃ and drawing the basalt stone at high speed through a platinum-rhodium alloy wire drawing bushing. The basalt fiber composite bar is formed by adopting high-strength basalt fiber and vinyl resin (epoxy resin) through online pultrusion, winding, surface coating and composite molding, and has the material characteristics of high strength (more than 3 times of common reinforcing steel bars), small specific gravity (1/4 of common reinforcing steel bars), good insulation, corrosion resistance, weather resistance and the like.
Based on the structure, the novel light wallboard with high mechanical strength, good sound insulation performance and high bending load resistance is developed, and the light wallboard has important significance for the development and application of the assembled light wallboard.
Disclosure of Invention
Aiming at the problem that the existing polystyrene foam light composite wallboard is low in strength and the like, the invention aims to provide the basalt fiber composite rib reinforced light wallboard which has the advantages of light weight, low heat insulation coefficient, good sound insulation effect, high compressive strength, high bending load resistance and the like.
In order to achieve the purpose, the invention adopts the following technical scheme:
the basalt fiber composite rib reinforced light wallboard is prepared from the following raw materials: the composite basalt fiber rib grid plate comprises, by weight, 80-100 parts of cement, 20-25 parts of sand, 0.5-1.0 part of flame-retardant polyphenyl particles, 25-40 parts of ceramsite, 10-30 parts of fly ash, 0.5-1.5 parts of early strength water reducing agent and 30-55 parts of water;
the basalt fiber composite rib grid pieces are positioned in the wallboard, preferably, the basalt fiber composite rib grid pieces are parallel to the wall surface, and preferably, the basalt fiber composite rib grid pieces are positioned at a half of the thickness of the wallboard; preferably, one basalt fiber composite rib grid sheet is placed in each wallboard; preferably, the shape and the area of the cross section of the basalt fiber composite rib grid sheet in the thickness direction of the wallboard are the same.
Furthermore, the basalt fiber composite rib grid sheet is formed by weaving basalt fiber composite ribs, the grid intervals of the grid sheet are the same, the side length of the grid is 15-30cm, and the diameter of the basalt fiber composite rib is 5-10 mm.
Further, the cement is portland cement.
Further, the particle size of the sand particles is less than 4.75 mm.
Further, the particle size of the flame-retardant polyphenyl particles is 2-5 mm.
Further, the ceramsite is a fly ash ceramsite, and the particle size of the fly ash ceramsite is 0.8-1.8 cm.
Further, the fly ash is F-class fly ash, and meets the requirements of GB/T1596-2017 fly ash for class II fly ash in Cement and concrete.
The preparation method of the basalt fiber composite rib reinforced light wallboard comprises the following steps:
(1) weaving the basalt fiber composite bars into a grid sheet with the size of the cross section of the die;
(2) mixing cement, sand, flame-retardant polyphenyl granules, fly ash and ceramsite, and uniformly stirring to obtain a mixture;
(3) dissolving an early strength water reducing agent in water to obtain an aqueous solution; adding the obtained aqueous solution into the mixture obtained in the step (2), and stirring to obtain cement mortar;
(4) adding the cement mortar obtained in the step (3) into a mould, and placing the basalt fiber composite rib grid sheet obtained in the step (1) into the mould; continuously adding the cement mortar obtained in the step (3), smoothing the surface, and demolding after molding; the molding time is 24-48 h.
In order to further improve the mechanical property of the basalt fiber composite rib reinforced light wallboard, the upper surface and the lower surface of the wallboard are reinforced by high-fiber gridding cloth.
Further, the high-fiber mesh cloth is glass fiber mesh cloth, the side length of meshes of the glass fiber mesh cloth is 5 +/-2 mm, and the mass of the mesh cloth in unit area is 80 +/-10 g/m2。
Further, the high-fiber gridding cloth is basalt fiber gridding cloth, the side length of meshes of the basalt fiber gridding cloth is 5 +/-1 mm, and the mass of the gridding cloth in unit area is 70 +/-15 g/m2。
The preparation method of the basalt fiber composite rib reinforced light wallboard comprises the following steps:
(1) cutting the high-fiber mesh cloth into 2 pieces of mesh cloth with the size of the cross section of the die; weaving the basalt fiber composite bars into a grid sheet with the size of the cross section of the die;
(2) flatly paving the 1 piece of grid cloth cut in the step (1) at the bottom of the mould;
(3) mixing cement, sand, flame-retardant polyphenyl granules, fly ash and ceramsite, and uniformly stirring to obtain a mixture;
(4) dissolving an early strength water reducing agent in water to obtain an aqueous solution; adding the obtained aqueous solution into the mixture obtained in the step (3), and stirring to obtain cement mortar;
(5) adding the cement mortar obtained in the step (4) into a mould, and placing the basalt fiber composite rib grid sheet obtained in the step (1) into the mould; continuously adding the cement mortar obtained in the step (4), after the surface is leveled, paving the other 1 piece of grid cloth cut in the step (1) on the surface of the mould, leveling, and demoulding after forming; the molding time is 24-48 h.
Compared with the prior art, the invention has the following advantages:
the basalt fiber composite rib reinforced light wallboard is prepared by utilizing the excellent performances of light weight, high mechanical strength, environmental protection, corrosion resistance, high temperature resistance and the like of the basalt fiber composite rib and combining the excellent characteristics of light weight of polyphenyl particles and ceramsite. The prepared basalt fiber composite rib reinforced light wallboard has the characteristics of light weight, heat preservation and insulation, good sound insulation effect, excellent bending resistance and bearing performance, high compressive strength and the like; the preparation method has the advantages of simple process, convenient operation and the like, and can be applied to light partition slats for buildings. Therefore, the basalt fiber composite rib reinforced light wallboard provided by the invention has good application prospect and economic value.
Drawings
Fig. 1 is a schematic view of a basalt fiber composite rib-reinforced lightweight wallboard prepared in embodiment 1 of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments in order to further explain the technical contents of the present invention.
The following examples used the starting materials:
the basalt fiber composite rib is provided by Shixin basalt science and technology Limited company of Guizhou, and the diameter of the basalt fiber composite rib is 5-10 mm;
the cement is 42.5 common Portland cement, and is purchased from Guizhou Wu Mengshan cement development industry, LLC;
the sand is local stone crushed sand, and the particle size of the sand is less than 4.75 mm;
the flame-retardant polyphenyl granules are purchased from first molten steel city steel (group) Saideconstruction Limited company, and have the grain diameter of 2-5 mm;
the ceramsite is purchased from a fly ash ceramsite factory of Fujian coal and electricity construction Limited company of Guizhou, and the particle size of the ceramsite is 0.8-1.8 cm;
the fly ash is F-class fly ash of a Yemazai power plant of a power generation company of Guizhou, Tang, and meets the requirements of GB/T1596-2017 fly ash for class II of fly ash in cement and concrete;
the early strength water reducing agent is SW early strength agent and is purchased from Shengwei concrete admixture of Kunming, Limited liability company;
the glass fiber mesh cloth is purchased from Gallery Kjeldahl glass fiber products Co., Ltd, and has a mesh side length of 5 + -2 mm and a unit area mass of 80 + -10 g/m2。
Example 1:
the basalt fiber composite rib reinforced light wallboard is prepared from the following raw materials in parts by weight: 1 piece of basalt fiber composite rib grid sheet, 60kg (100 parts) of cement, 12kg (20 parts) of sand, 0.36kg (0.6 part) of flame-retardant polyphenyl granules, 18kg (30 parts) of ceramsite, 12kg (20 parts) of fly ash, 0.6kg (1 part) of early strength water reducing agent and 30kg (50 parts) of water. The preparation method comprises the following steps:
the 2440mm 610mm 90mm die was assembled. Weaving basalt fiber composite ribs into 2440 mm-610 mm-sized grid sheets for later use; wherein, the distance between each grid of the grid sheet is 20cm, and the diameter of the basalt fiber composite bar is 6 mm. Cutting the glass fiber mesh cloth into 2 pieces of mesh cloth with the size of 2440mm × 610mm, and flatly paving the cut glass fiber mesh cloth with the size of the cross section of 1 piece of die at the bottom of the die. Mixing 60kg of cement, 12kg of sand, 0.36kg of flame-retardant polyphenyl granules, 18kg of ceramsite and 12kg of fly ash, and uniformly stirring to obtain a mixture; dissolving 0.6kg of early strength water reducing agent in 30kg of water to obtain an aqueous solution; adding the obtained aqueous solution into the obtained mixture, and stirring to obtain cement mortar; adding cement mortar into a mould, placing the basalt fiber composite rib grid sheet in the middle of the mould, namely 1/2 parts (half of the thickness of the wallboard) of the thickness of the wallboard, continuously adding the cement mortar, after the surface is leveled, paving and leveling the cut glass fiber grid cloth with the size of the cross section of the other 1 mould on the surface of the mould, and demoulding after forming; the molding time was 24 h.
After 28 days of room temperature curing, the schematic diagram of the basalt fiber composite rib reinforced light wallboard prepared in the embodiment 1 is as shown in fig. 1, and according to the test standard of the lightweight partition slat for building of national standard GB/T23451-2009, the self weight of the basalt fiber composite rib reinforced light wallboard prepared in the embodiment is 663kg/m3The heat transfer coefficient was 0.11W/(m.K), the sound insulation amount was 47.3dB, the bending load was 6.3 times the self weight, and the compressive strength was 4.5 MPa.
Example 2:
the basalt fiber composite rib reinforced light wallboard is prepared from the following raw materials in parts by weight: 1 piece of basalt fiber composite rib grid sheet, 100 parts of cement, 20 parts of sand, 0.6 part of flame-retardant polyphenyl granules, 30 parts of ceramsite, 20 parts of fly ash, 1 part of early strength water reducing agent and 50 parts of water. The preparation method comprises the following steps:
the 2440mm 610mm 90mm die was assembled. Weaving basalt fiber composite ribs into 2440 mm-610 mm-sized grid sheets for later use; wherein, the distance between each grid of the grid sheet is 20cm, and the diameter of the basalt fiber composite bar is 10 mm. Cutting the glass fiber mesh cloth into 2 pieces of mesh cloth with the size of 2440mm × 610mm, and flatly paving the cut glass fiber mesh cloth with the size of the cross section of 1 piece of die at the bottom of the die. Mixing 60kg of cement, 12kg of sand, 0.36kg of flame-retardant polyphenyl granules, 18kg of ceramsite and 12kg of fly ash, and uniformly stirring to obtain a mixture; dissolving 0.6kg of early strength water reducing agent in 30kg of water to obtain an aqueous solution; adding the obtained aqueous solution into the obtained mixture, and stirring to obtain cement mortar; adding cement mortar into a mould, placing the basalt fiber composite rib grid sheet in the middle of the mould, namely 1/2 parts (half of the thickness of the wallboard) of the thickness of the wallboard, continuously adding the cement mortar, after the surface is leveled, paving and leveling the cut glass fiber grid cloth with the size of the cross section of the other 1 mould on the surface of the mould, and demoulding after forming; the molding time was 24 h.
After being maintained at room temperature for 28 days, the self weight of the basalt fiber composite bar reinforced light wall board prepared in the embodiment is 660kg/m according to the test standard of the lightweight partition wall batten for building GB/T23451-20093The heat transfer coefficient was 0.12W/(m.K), the sound insulation amount was 46.1dB, the bending load was 7.2 times the self weight, and the compressive strength was 4.4 MPa.
Example 3:
the basalt fiber composite rib reinforced light wallboard is prepared from the following raw materials in parts by weight: 1 piece of basalt fiber composite rib grid sheet, 100 parts of cement, 20 parts of sand, 0.6 part of flame-retardant polyphenyl granules, 30 parts of ceramsite, 20 parts of fly ash, 1 part of early strength water reducing agent and 50 parts of water. The preparation method comprises the following steps:
the 2440mm 610mm 90mm die was assembled. Weaving basalt fiber composite ribs into 2440 mm-610 mm-sized grid sheets for later use; wherein, the distance between each grid of the grid sheet is 30cm, and the diameter of the basalt fiber composite bar is 6 mm. Cutting the glass fiber mesh cloth into 2 pieces of mesh cloth with the size of 2440mm × 610mm, and flatly paving the cut glass fiber mesh cloth with the size of the cross section of 1 piece of die at the bottom of the die. Mixing 60kg of cement, 12kg of sand, 0.36kg of flame-retardant polyphenyl granules, 18kg of ceramsite and 12kg of fly ash, and uniformly stirring to obtain a mixture; dissolving 0.6kg of early strength water reducing agent in 30kg of water to obtain an aqueous solution; adding the obtained aqueous solution into the obtained mixture, and stirring to obtain cement mortar; adding cement mortar into a mould, placing the basalt fiber composite rib grid sheet in the middle of the mould, namely 1/2 parts (half of the thickness of the wallboard) of the thickness of the wallboard, continuously adding the cement mortar, after the surface is leveled, paving and leveling the cut glass fiber grid cloth with the size of the cross section of the other 1 mould on the surface of the mould, and demoulding after forming; the molding time was 24 h.
After curing at room temperature for 28 days, according toIn the test standard of the light partition wall batten for the building of national standard GB/T23451-2009, the self weight of the basalt fiber composite rib reinforced light wallboard prepared in the embodiment is 677kg/m3The heat transfer coefficient was 0.10W/(m.K), the sound insulation amount was 46.3dB, the bending load was 5.6 times the self weight, and the compressive strength was 4.7 MPa.
Example 4:
the basalt fiber composite rib reinforced light wallboard is prepared from the following raw materials in parts by weight: 1 piece of basalt fiber composite rib grid sheet, 100 parts of cement, 20 parts of sand, 0.6 part of flame-retardant polyphenyl granules, 40 parts of ceramsite, 20 parts of fly ash, 1 part of early strength water reducing agent and 50 parts of water. The preparation method comprises the following steps:
the 2440mm 610mm 90mm die was assembled. Weaving basalt fiber composite ribs into 2440 mm-610 mm-sized grid sheets for later use; wherein, the distance between each grid of the grid sheet is 20cm, and the diameter of the basalt fiber composite bar is 6 mm. Cutting the glass fiber mesh cloth into 2 pieces of mesh cloth with the size of 2440mm × 610mm, and flatly paving the cut glass fiber mesh cloth with the size of the cross section of 1 piece of die at the bottom of the die. Mixing 60kg of cement, 12kg of sand, 0.36kg of flame-retardant polyphenyl granules, 24kg of ceramsite and 12kg of fly ash, and uniformly stirring to obtain a mixture; dissolving 0.6kg of early strength water reducing agent in 30kg of water to obtain an aqueous solution; adding the obtained aqueous solution into the obtained mixture, and stirring to obtain cement mortar; adding cement mortar into a mould, placing the basalt fiber composite rib grid sheet in the middle of the mould, namely 1/2 parts (half of the thickness of the wallboard) of the thickness of the wallboard, continuously adding the cement mortar, after the surface is leveled, paving and leveling the cut glass fiber grid cloth with the size of the cross section of the other 1 mould on the surface of the mould, and demoulding after forming; the molding time was 24 h.
After being maintained at room temperature for 28 days, according to the test standard of the lightweight partition slat for buildings in GB/T23451-2009, the self weight of the basalt fiber composite bar reinforced lightweight wallboard prepared in the embodiment is 648kg/m3The heat transfer coefficient was 0.09W/(mK), the sound insulation amount was 45.7dB, the bending load was 6.8 times the self weight, and the compressive strength was 3.6 MPa.
Example 5:
the basalt fiber composite rib reinforced light wallboard is prepared from the following raw materials in parts by weight: 1 piece of basalt fiber composite rib grid sheet, 100 parts of cement, 20 parts of sand, 0.6 part of flame-retardant polyphenyl granules, 30 parts of ceramsite, 30 parts of fly ash, 1 part of early strength water reducing agent and 50 parts of water. The preparation method comprises the following steps:
the 2440mm 610mm 90mm die was assembled. Weaving basalt fiber composite ribs into 2440 mm-610 mm-sized grid sheets for later use; wherein, the distance between each grid of the grid sheet is 20cm, and the diameter of the basalt fiber composite bar is 6 mm. Cutting the glass fiber mesh cloth into 2 pieces of mesh cloth with the size of 2440mm × 610mm, and flatly paving the cut glass fiber mesh cloth with the size of the cross section of 1 piece of die at the bottom of the die. Mixing 60kg of cement, 12kg of sand, 0.36kg of flame-retardant polyphenyl granules, 18kg of ceramsite and 18kg of fly ash, and uniformly stirring to obtain a mixture; dissolving 0.6kg of early strength water reducing agent in 30kg of water to obtain an aqueous solution; adding the obtained aqueous solution into the obtained mixture, and stirring to obtain cement mortar; adding cement mortar into a mould, placing the basalt fiber composite rib grid sheet in the middle of the mould, namely 1/2 parts (half of the thickness of the wallboard) of the thickness of the wallboard, continuously adding the cement mortar, after the surface is leveled, paving and leveling the cut glass fiber grid cloth with the size of the cross section of the other 1 mould on the surface of the mould, and demoulding after forming; the molding time was 24 h.
After curing at room temperature for 28 days, according to the test standard of lightweight partition slat for building GB/T23451-2009, the self weight of the basalt fiber composite bar reinforced lightweight wallboard prepared in the embodiment is 671kg/m3The heat transfer coefficient was 0.13W/(m.K), the sound insulation amount was 48.0dB, the bending load was 5.5 times the self weight, and the compressive strength was 4.4 MPa.
Example 6:
the basalt fiber composite rib reinforced light wallboard is prepared from the following raw materials in parts by weight: 1 piece of basalt fiber composite rib grid sheet, 100 parts of cement, 20 parts of sand, 1 part of flame-retardant polyphenyl granules, 30 parts of ceramsite, 20 parts of fly ash, 1 part of early strength water reducing agent and 50 parts of water. The preparation method comprises the following steps:
the 2440mm 610mm 90mm die was assembled. Weaving basalt fiber composite ribs into 2440 mm-610 mm-sized grid sheets for later use; wherein, the distance between each grid of the grid sheet is 20cm, and the diameter of the basalt fiber composite bar is 6 mm. Cutting the glass fiber mesh cloth into 2 pieces of mesh cloth with the size of 2440mm × 610mm, and flatly paving the cut glass fiber mesh cloth with the size of the cross section of 1 piece of die at the bottom of the die. Mixing 60kg of cement, 12kg of sand, 0.6kg of flame-retardant polyphenyl granules, 18kg of ceramsite and 12kg of fly ash, and uniformly stirring to obtain a mixture; dissolving 0.6kg of early strength water reducing agent in 30kg of water to obtain an aqueous solution; adding the obtained aqueous solution into the obtained mixture, and stirring to obtain cement mortar; adding cement mortar into a mould, placing the basalt fiber composite rib grid sheet in the middle of the mould, namely 1/2 parts (half of the thickness of the wallboard) of the thickness of the wallboard, continuously adding the cement mortar, after the surface is leveled, paving and leveling the cut glass fiber grid cloth with the size of the cross section of the other 1 mould on the surface of the mould, and demoulding after forming; the molding time was 24 h.
After being maintained at room temperature for 28 days, the self weight of the basalt fiber composite bar reinforced light wallboard prepared in the embodiment is 610kg/m according to the test standard of the lightweight partition wall batten for building GB/T23451-20093The heat transfer coefficient was 0.08W/(mK), the sound insulation amount was 39.0dB, the bending load was 6.7 times the self weight, and the compressive strength was 3.5 MPa.
Example 7:
the basalt fiber composite rib reinforced light wallboard is prepared from the following raw materials in parts by weight: 1 piece of basalt fiber composite rib grid sheet, 83.3 parts of cement, 20 parts of sand, 0.6 part of flame-retardant polyphenyl granules, 30 parts of ceramsite, 20 parts of fly ash, 1 part of early strength water reducing agent and 50 parts of water. The preparation method comprises the following steps:
the 2440mm 610mm 90mm die was assembled. Weaving basalt fiber composite ribs into 2440 mm-610 mm-sized grid sheets for later use; wherein, the distance between each grid of the grid sheet is 20cm, and the diameter of the basalt fiber composite bar is 6 mm. Cutting the glass fiber mesh cloth into 2 pieces of mesh cloth with the size of 2440mm × 610mm, and flatly paving the cut glass fiber mesh cloth with the size of the cross section of 1 piece of die at the bottom of the die. Mixing 50kg of cement, 12kg of sand, 0.36kg of flame-retardant polyphenyl granules, 18kg of ceramsite and 12kg of fly ash, and uniformly stirring to obtain a mixture; dissolving 0.6kg of early strength water reducing agent in 30kg of water to obtain an aqueous solution; adding the obtained aqueous solution into the obtained mixture, and stirring to obtain cement mortar; adding cement mortar into a mould, placing the basalt fiber composite rib grid sheet in the middle of the mould, namely 1/2 parts (half of the thickness of the wallboard) of the thickness of the wallboard, continuously adding the cement mortar, after the surface is leveled, paving and leveling the cut glass fiber grid cloth with the size of the cross section of the other 1 mould on the surface of the mould, and demoulding after forming; the molding time was 24 h.
After being maintained at room temperature for 28 days, according to the test standard of the lightweight partition slat for buildings in GB/T23451-2009, the self weight of the basalt fiber composite bar reinforced lightweight wallboard prepared in the embodiment is 607kg/m3The heat transfer coefficient was 0.08W/(mK), the sound insulation amount was 38.1dB, the bending load was 5.7 times the self weight, and the compressive strength was 3.9 MPa.
Example 8:
the basalt fiber composite rib reinforced light wallboard is prepared from the following raw materials in parts by weight: 1 piece of basalt fiber composite rib grid sheet, 60kg (100 parts) of cement, 12kg (20 parts) of sand, 0.36kg (0.6 part) of flame-retardant polyphenyl granules, 18kg (30 parts) of ceramsite, 12kg (20 parts) of fly ash, 0.6kg (1 part) of early strength water reducing agent and 30kg (50 parts) of water. The preparation method comprises the following steps:
the 2440mm 610mm 90mm die was assembled. Weaving basalt fiber composite ribs into 2440 mm-610 mm-sized grid sheets for later use; wherein, the distance between each grid of the grid sheet is 20cm, and the diameter of the basalt fiber composite bar is 6 mm. Mixing 60kg of cement, 12kg of sand, 0.36kg of flame-retardant polyphenyl granules, 18kg of ceramsite and 12kg of fly ash, and uniformly stirring to obtain a mixture; dissolving 0.6kg of early strength water reducing agent in 30kg of water to obtain an aqueous solution; adding the obtained aqueous solution into the obtained mixture, and stirring to obtain cement mortar; adding cement mortar into a mould, placing the basalt fiber composite rib grid sheet in the middle of the mould, namely 1/2 parts (half of the thickness of the wallboard) of the thickness of the wallboard, continuously adding the cement mortar, and forming and demoulding after the surface is smoothed; the molding time was 24 h.
Maintaining at room temperature for 28 daysThen, according to the test standard of the lightweight partition slat for building GB/T23451-2009, the self weight of the basalt fiber composite rib reinforced lightweight wallboard prepared by the embodiment is 661kg/m3The heat transfer coefficient was 0.13W/(m.K), the sound insulation amount was 47.4dB, the bending load was 5.5 times the self weight, and the compressive strength was 4.0 MPa.
Claims (10)
1. The basalt fiber composite rib reinforced light wallboard is characterized by being prepared from the following raw materials: the composite basalt fiber rib grid plate comprises, by weight, 80-100 parts of cement, 20-25 parts of sand, 0.5-1.0 part of flame-retardant polyphenyl particles, 25-40 parts of ceramsite, 10-30 parts of fly ash, 0.5-1.5 parts of early strength water reducing agent and 30-55 parts of water; the basalt fiber composite rib grid sheet is formed by weaving basalt fiber composite ribs;
the basalt fiber composite rib grid sheet is positioned inside the wallboard.
2. The basalt fiber composite rib reinforced light wallboard of claim 1, wherein the side length of the basalt fiber composite rib grid sheet grid is 15-30cm, and the diameter of the basalt fiber composite rib is 5-10 mm.
3. The basalt fiber composite rib-reinforced light wallboard according to claim 1, wherein the particle size of the flame-retardant polyphenyl particles is 2-5 mm.
4. The basalt fiber composite rib-reinforced light wallboard according to claim 1, wherein the ceramsite has a particle size of 0.8-1.8 cm.
5. The basalt fiber composite rib-reinforced light wallboard according to claim 4, wherein the ceramsite is a fly ash ceramsite.
6. The basalt fiber composite bar-reinforced light weight wallboard of claim 1, wherein the cement is portland cement; the grain diameter of the sand grains is less than 4.75 mm.
7. The preparation method of the basalt fiber composite rib reinforced lightweight wallboard as claimed in any one of claims 1 to 6, characterized by comprising the following steps:
(1) weaving the basalt fiber composite bars into a grid sheet with the size of the cross section of the die;
(2) mixing cement, sand, flame-retardant polyphenyl granules, fly ash and ceramsite, and uniformly stirring to obtain a mixture;
(3) dissolving an early strength water reducing agent in water to obtain an aqueous solution; adding the obtained aqueous solution into the mixture obtained in the step (2), and stirring to obtain cement mortar;
(4) adding the cement mortar obtained in the step (3) into a mould, and placing the basalt fiber composite rib grid sheet obtained in the step (1) into the mould; continuously adding the cement mortar obtained in the step (3), smoothing the surface, and demolding after molding; the molding time is 24-48 h.
8. The preparation method of the basalt fiber composite rib reinforced lightweight wallboard as claimed in any one of claims 1 to 6, characterized by comprising the following steps:
(1) cutting the high-fiber mesh cloth into 2 pieces of mesh cloth with the size of the cross section of the die; weaving the basalt fiber composite bars into a grid sheet with the size of the cross section of the die;
(2) flatly paving the 1 piece of grid cloth cut in the step (1) at the bottom of the mould;
(3) mixing cement, sand, flame-retardant polyphenyl granules, fly ash and ceramsite, and uniformly stirring to obtain a mixture;
(4) dissolving an early strength water reducing agent in water to obtain an aqueous solution; adding the obtained aqueous solution into the mixture obtained in the step (3), and stirring to obtain cement mortar;
(5) adding the cement mortar obtained in the step (4) into a mould, and placing the basalt fiber composite rib grid sheet obtained in the step (1) into the mould; continuously adding the cement mortar obtained in the step (4), after the surface is leveled, paving the other 1 piece of grid cloth cut in the step (1) on the surface of the mould, leveling, and demoulding after forming; the molding time is 24-48 h.
9. The preparation method according to claim 8, wherein the high fiber mesh cloth is a glass fiber mesh cloth, the side length of the mesh of the glass fiber mesh cloth is 5 plus or minus 2mm, and the mass per unit area of the glass fiber mesh cloth is 80 plus or minus 10g/m2。
10. The method according to claim 8, wherein the high fiber mesh is basalt fiber mesh, the length of the side of the mesh of the basalt fiber mesh is 5 ± 1mm, and the mass per unit area of the basalt fiber mesh is 70 ± 15g/m2。
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