CN110228971B - Glass fiber three-dimensional reinforced light cement batten - Google Patents

Glass fiber three-dimensional reinforced light cement batten Download PDF

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Publication number
CN110228971B
CN110228971B CN201910499634.9A CN201910499634A CN110228971B CN 110228971 B CN110228971 B CN 110228971B CN 201910499634 A CN201910499634 A CN 201910499634A CN 110228971 B CN110228971 B CN 110228971B
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glass fiber
cement
mold
batten
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CN110228971A (en
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丁义杰
朱沛君
华强
滕斌
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Guangxi Junding Construction Engineering Co Ltd
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Guangxi Junding Construction Engineering Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/14—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted
    • B28B1/16—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted for producing layered articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
    • B28B1/522—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement for producing multi-layered articles
    • 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
    • C04B14/42—Glass
    • 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
    • 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
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/0003—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof containing continuous channels, e.g. of the "dead-end" type or obtained by pushing bars in the green ceramic product
    • 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
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028—Aspects relating to the mixing step of the mortar preparation
    • 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
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028—Aspects relating to the mixing step of the mortar preparation
    • C04B40/0039—Premixtures of ingredients
    • 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
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • 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

Abstract

The invention relates to a glass fiber three-dimensional reinforced light cement batten, belonging to the technical field of wall cement battens, wherein the cement batten is formed by a composite slurry casting mould, glass fiber gridding cloth is arranged on two sides of the cement batten, and the composite slurry contains mixed glass fibers with different lengths; the mixed glass fiber is formed by mixing glass fibers with the lengths of 0.5-1.5cm, 1.6-2.5cm and 2.6-3.5cm respectively. The manufacturing process is simple, the obtained cement batten has the advantages of enhanced integrity, better tensile, compressive and flexural resistances, easier pore forming, reduced weight, good strength, high ductility, difficult cracking, water resistance and fire resistance.

Description

Glass fiber three-dimensional reinforced light cement batten
Technical Field
The invention belongs to the technical field of wall cement battens, in particular to a glass fiber three-dimensional reinforced light cement batten, which comprises a plurality of glass fiber three-dimensional reinforced light cement battens.
Background
When the glass fiber is used as a reinforcing material, the tensile strength can be obviously increased, the heat resistance is good, the strength is not influenced when the temperature reaches 300 ℃, the glass fiber has excellent electric insulation, is a high-grade electric insulation material, is also used for a heat insulation material and a fireproof shielding material, and is generally only corroded by concentrated alkali, hydrofluoric acid and concentrated phosphoric acid. Compared with organic fiber, the glass fiber has high temperature resistance, no combustion, corrosion resistance, good heat insulation and sound insulation, high tensile strength and good electrical insulation.
The existing light cement board for the building partition wall is manufactured by pouring foaming cement between two calcium silicate boards, the light cement board is light in weight, but poor in hardness and strength and poor in bending resistance and pressure resistance, and the foaming cement board is easy to bend and break when being subjected to strong force or being used for a long time, so that the building requirements of users are difficult to meet; secondly, the two sides of the cement lath are reinforced by the glass fiber mesh cloth, so that the effect of bending resistance is achieved, but the inner part of the plate cannot be reinforced, and particularly, the middle of the plate is easy to crack under long-term use in the cross section direction. In the traditional method, in order to increase the strength of the cement lath, a long fibrous substance is added, but the material is easy to knot and unevenly distribute in the primary manufacturing process, and is easy to be brought out by a pore-forming pipe when pore-forming is carried out on a lath die, so that loss is caused, and the overall structure of the cement lath is influenced.
The Chinese granted patent with the application number of 201310353318.3 discloses a decorative plate of a facing brick for an external wall of a building, which takes glass fiber gridding cloth or synthetic fiber non-woven cloth as reinforcing mesh cloth, cement mortar, redispersible latex powder or alkali-resistant elastic emulsion, synthetic short fiber and cellulose ether to prepare composite slurry, the composite slurry is pressed into a bottom blank body in a mould, and a facing brick is stuck on the bottom blank body to prepare the prefabricated decorative plate of the facing brick, wherein the prefabricated decorative plate of the facing brick has excellent crack resistance, tensile resistance and portability on the physical characteristics; however, it uses a large amount of organic components, and is poor in strength and fire resistance and low in safety.
In the field of fiberglass cement lath technology, the foamed cement materials, CN103693921A and
CN203766147U discloses a light glass fiber foaming cement ribbon board and a production method thereof, and the technical scheme of the patent is as follows: the light glass fiber foamed cement ribbon board comprises a calcium silicate board layer and a foamed cement layer, wherein the calcium silicate board layer is arranged on the surface of the foamed cement layer, and the light glass fiber foamed cement ribbon board is characterized in that the foamed cement layer is a glass fiber foamed cement layer, and the glass fiber foamed cement layer consists of the following components: 2.5% of river sand, 2.5% of 108 glue, 0.7% of water reducing agent, 7.6% of gypsum, 0.2% of triethanolamine, 12% of waste stone powder, 1.8% of glass fiber, 6.5% of VAE glue and the balance of cement. The technical scheme uses the traditional foaming cement technology, needs to be prepared layer by layer, needs glue to adhere layers, releases certain formaldehyde, has relatively complex process and higher cost, and is not suitable for manufacturing a cement batten with a hole in the middle.
Therefore, a lightweight, safer, strong, and wider-application cement plank is needed.
Disclosure of Invention
In order to solve the problems, the invention provides the glass fiber three-dimensional reinforced light cement batten which is simple in manufacturing process, the obtained cement batten is integrally reinforced, better in tensile, compressive and bending resistance, easier in pore forming, light in weight, good in strength, high in ductility, difficult to crack, and waterproof and fireproof.
In order to achieve the purpose, the scheme provided by the invention is as follows:
a glass fiber three-dimensional reinforced light cement slat is formed by a composite slurry casting mold, and glass fiber gridding cloth is arranged on two sides of the cement slat; the composite slurry is characterized by containing mixed glass fibers with different lengths; the mixed glass fiber is formed by mixing glass fibers with the lengths of 0.5-1.5cm, 1.6-2.5cm and 2.6-3.5cm respectively.
Further, the composite slurry comprises the following raw materials in parts by weight: 12-46 parts of coal ash, 0-12 parts of perlite, 0.3-1 part of mixed glass fiber, 0-0.5 part of graphene, 1-8 parts of fine sand, 1-6 parts of vermiculite, 1-5 parts of ceramsite, 30-35 parts of water, 0.3-1.5 parts of regulator, 0.1-0.4 part of micro-expanding agent and 37.5-75 parts of cement; wherein the mixed glass fiber is obtained by mixing glass fibers with the lengths of 0.5-1.5cm, 1.6-2.5cm and 2.6-3.5cm respectively according to the mass ratio of 3-6:1-5: 1.
Further, the composite slurry comprises the following raw materials in parts by weight: 15-25 parts of coal ash, 1-3 parts of perlite, 0.5-0.8 part of mixed glass fiber, 0.1-0.2 part of graphene, 4-7 parts of fine sand, 2-4 parts of vermiculite, 2-3 parts of ceramsite, 31-33 parts of water, 0.5-0.8 part of regulator, 0.1-0.3 part of micro-expanding agent and 40-60 parts of cement; wherein the mixed glass fiber is obtained by mixing glass fibers with lengths of 0.8-1.2cm, 1.8-2.2cm and 2.8-3.2cm according to the mass ratio of 3-4:2-3: 1.
Further, the regulator comprises the following raw materials in parts by weight: 10-15 parts of triethylene glycol dimethacrylate, 2-5 parts of lauryl methacrylate, 5-8 parts of trimethylolpropane triacrylate and 5-10 parts of propylene glycol methyl ether acetate.
Further, the regulator comprises the following raw materials in parts by weight: 12 parts of triethylene glycol dimethacrylate, 4 parts of lauryl methacrylate, 6 parts of trimethylolpropane triacrylate and 7 parts of propylene glycol monomethyl ether acetate.
The invention provides a processing technology of a glass fiber three-dimensional reinforced light cement batten, which comprises the following steps:
(1) adding mixed glass fiber and graphene into water, and uniformly mixing in a stirrer;
(2) sequentially adding cement, a micro-expanding agent, coal ash, perlite, fine sand, vermiculite, ceramsite and a regulator into the stirrer in the step (1), and uniformly mixing at normal temperature to obtain a composite slurry; wherein, adding the next material after each material is added and uniformly stirred;
(3) filling the glass fiber mesh cloth into two sides of a mold, injecting composite slurry into the mold, standing, and removing the mold after molding to obtain a primary cement batten;
(4) and curing the primary cement batten, and obtaining a finished cement batten after curing.
Further, in step (2), the perlite is pretreated by: preheating the perlite for 2-4 minutes in the environment of 650-700 ℃, and then burning for 3-5 seconds in the high-temperature flame of 1120-1150 ℃. In the processing technology of the cement ribbon board, if not further limited, the requirements of the GBT 19631-.
Further, in the step (3), the mold includes a hollow rectangular mold body and a cover body installed on the mold body, the cover body faces the inner side of the mold body and is fixedly installed with a plurality of cylindrical hole making columns, and the bottom ends of the hole making columns can touch the inner bottom surface of the mold body.
Further, the side plate of the die body is a detachable side plate.
Furthermore, a handle is arranged on one side of the cover body, which is far away from the die body.
The raw materials used in the invention have the following advantages:
the mixed glass fibers used in the invention have different length and short structures, and are not easy to be brought out through the length alternation and mutual drawing action of the glass fibers with different sizes; the integrity of the solidified material is well enhanced and is not easy to damage; the phenomenon that the glass fiber inside the cement batten is unevenly distributed due to the fact that the sticky pipe is brought out in the pore-forming process is avoided.
Graphene is the thinnest two-dimensional material, and has a two-dimensional lamellar structure, when the graphene and mixed glass fibers are mixed and used in a cement lath, firstly, the graphene can carry the function of connecting bridges by the mixed glass fibers, so that the mixed glass fibers form a tighter connection relationship, the connection stability is improved, the mechanical property of the cement lath is further improved, and the traction attraction between the mixed glass fibers is improved; secondly, after the graphene is added, the heat storage coefficient of the cement batten can be effectively improved, the graphene-based heat storage material can effectively reduce the internal temperature of a building when being applied to the building cement batten, and the energy-saving effect is obvious.
The coal ash is solid residue discharged by burning coal, the waste residue contains silicon and calcium, the coal ash formed by high temperature has certain activity, the activity of the coal ash can be used for replacing a part of cement in construction, the water consumption is saved, the production cost is reduced, the workability of concrete mixture is improved, and the coal ash has the advantage of light weight. After the perlite is pretreated, the water content is reduced, the volume of the perlite is expanded to be more than 30 times of the original volume, and the perlite has a good void structure; the heat preservation performance of the cement batten can be better, and the quality is greatly reduced. The addition of fine sand, vermiculite, ceramsite and regulator can increase the structural strength and stability of the cement batten. In the invention, the provided raw materials are matched with each other and are buckled with each other in a ring manner, so that the purposes of lightening the weight of the cement batten, having good strength and high ductility, being not easy to crack and having the characteristics of water resistance and fire resistance can be realized.
The invention adds the micro-expanding agent, generates volume increase through reaction with water in the processing process, can compensate the shrinkage of the product in the hardening process, prevents cracking, further improves the anti-falling and anti-cracking effects of the product, and improves the strength of the product.
The regulator used in the invention comprises triethylene glycol dimethacrylate, lauryl methacrylate, trimethylolpropane triacrylate and propylene glycol monomethyl ether acetate, and the regulator obtained by mixing the components can fully regulate raw materials in processing and preparation, thereby improving the stability of the structure of the cement lath.
The raw materials used in the invention are as follows: coal ash, perlite, mixed glass fiber, graphene, fine sand, vermiculite, ceramsite, micro-expanding agent, cement, triethylene glycol dimethacrylate, lauryl methacrylate, trimethylolpropane triacrylate and propylene glycol monomethyl ether acetate are all purchased from domestic and foreign building raw material companies, and are directly used without being continuously purified.
The invention has the following beneficial effects:
1. the invention takes the glass fiber mesh cloth as the reinforced mesh cloth, thus improving the pulling resistance of the cement batten in the horizontal direction; meanwhile, long and short glass fibers are added into the slurry for manufacturing the cement ribbon board, and the integrity of the solidified material can be well enhanced and is not easy to damage through the alternate length and mutual bonding of the glass fibers with different sizes as shown in the attached figure 2; and through the control to glass fiber length and proportion, the phenomenon of uneven stirring that probably takes place in the manufacturing process has been fine avoided, the pipe adhesion phenomenon that takes place when avoiding the pore-forming process.
2. The raw materials of the invention comprise graphene, and the graphene and the mixed glass fiber are mixed and dispersed in water in advance in the manufacturing process, so that the graphene can be uniformly adhered to the surface of the mixed glass fiber, and the interaction force of the mixed glass fiber can be further improved by the attraction between adjacent graphene, thereby realizing the strengthening of the mutual bonding effect of the graphene and the improvement of the stability and the integrity of the cement batten.
3. In the manufacturing process, water is firstly added, then the mixed glass fiber and the graphene are added and uniformly stirred, and then the residual substances such as the coal ash, the cement, the perlite and the like are added, so that the mixed glass fiber is firstly fully contacted with the water and can be uniformly stirred, the graphene is uniformly distributed on the glass fiber, the mixed glass fiber is uniformly distributed in the slurry, and the phenomenon of nonuniform distribution caused by the fact that the fiber is piled up and distributed due to the tension formed by nonuniform water contact surface is avoided.
4. The cement batten manufactured by the method is internally provided with the plurality of through holes, so that the cement batten can be threaded in the holes in practical building application, and the defect that the traditional construction needs to be additionally grooved for threading is overcome; but also can reduce the use of raw materials and avoid the defect of insufficient strength caused by pore forming.
Drawings
FIG. 1 is a schematic perspective view of a cement plank manufactured according to the present invention.
FIG. 2 is a microscopic enlarged view of the cement lath of the present invention.
Fig. 3 is a schematic structural view of a cover plate of a mold used in the present invention.
Fig. 4 is a bottom view of a cover plate of a mold used in the present invention.
In the figure: 1-cement ribbon board, 11-through hole, 2-cover body, 3-pore-forming column, 4-handle, 5-glass fiber with length of 2.6-3.5cm, 6-glass fiber with length of 1.6-2.5cm and 7-glass fiber with length of 0.5-1.5 cm.
Detailed Description
The invention is further described with reference to the following examples:
example 1
A glass fiber three-dimensional reinforced light cement slat is formed by a composite slurry casting mold, and glass fiber gridding cloth is arranged on two sides of the cement slat; the composite slurry comprises the following raw materials in parts by weight: 12 parts of coal ash, 0.3 part of mixed glass fiber, 1 part of fine sand, 1 part of vermiculite, 1 part of ceramsite, 30 parts of water, 0.3 part of regulator, 0.1 part of micro-expanding agent and 37.5 parts of cement; wherein the mixed glass fiber is obtained by mixing glass fibers with lengths of 0.5cm, 1.6cm and 2.6cm according to the mass ratio of 3:1: 1; the regulator comprises the following raw materials in parts by weight: 10 parts of triethylene glycol dimethacrylate, 2 parts of lauryl methacrylate, 5 parts of trimethylolpropane triacrylate and 5 parts of propylene glycol monomethyl ether acetate.
The processing technology of the glass fiber three-dimensional reinforced light cement batten comprises the following steps:
(1) adding mixed glass fiber into water, and uniformly mixing in a stirrer;
(2) sequentially adding cement, a micro-expansion agent, coal ash, fine sand, vermiculite, ceramsite and a regulator into the stirrer in the step (1), and uniformly mixing at normal temperature to obtain a composite slurry; wherein, adding the next material after each material is added and uniformly stirred;
(3) filling the glass fiber mesh cloth into two sides of a mold, injecting composite slurry into the mold, standing, and removing the mold after molding to obtain a primary cement batten;
(4) and curing the primary cement batten, and obtaining a finished cement batten after curing.
The present embodiment provides an explanation of the structure of the mold: the die comprises a hollow cuboid-shaped die body and a cover body 2 arranged on the die body, wherein a plurality of cylindrical hole forming columns 3 are fixedly arranged on one side of the cover body 2 facing the inside of the die body, and the bottom ends of the hole forming columns 3 can touch the inner bottom surface of the die body; the side plate of the die body is a detachable side plate; and a handle 4 is arranged on one side of the cover body 2 departing from the die body.
Example 2
A glass fiber three-dimensional reinforced light cement slat is formed by a composite slurry casting mold, and glass fiber gridding cloth is arranged on two sides of the cement slat; the composite slurry comprises the following raw materials in parts by weight: 0.1 part of graphene, 12 parts of coal ash, 0.3 part of mixed glass fiber, 1 part of fine sand, 1 part of vermiculite, 1 part of ceramsite, 30 parts of water, 0.3 part of regulator, 0.1 part of micro-expanding agent and 37.5 parts of cement; wherein the mixed glass fiber is obtained by mixing glass fibers with lengths of 0.5cm, 1.6cm and 2.6cm according to the mass ratio of 3:1: 1; the regulator comprises the following raw materials in parts by weight: 10 parts of triethylene glycol dimethacrylate, 2 parts of lauryl methacrylate, 5 parts of trimethylolpropane triacrylate and 5 parts of propylene glycol monomethyl ether acetate.
The processing procedure was in accordance with example 1.
Example 3
A glass fiber three-dimensional reinforced light cement slat is formed by a composite slurry casting mold, and glass fiber gridding cloth is arranged on two sides of the cement slat; the composite slurry comprises the following raw materials in parts by weight: 46 parts of coal ash, 12 parts of perlite, 1 part of mixed glass fiber, 0.5 part of graphene, 8 parts of fine sand, 6 parts of vermiculite, 5 parts of ceramsite, 35 parts of water, 1.5 parts of regulator, 0.4 part of micro-expanding agent and 75 parts of cement; wherein the mixed glass fiber is obtained by mixing glass fibers with the lengths of 1.5cm, 2.5cm and 3.5cm according to the mass ratio of 6:5: 1; the regulator comprises the following raw materials in parts by weight: 15 parts of triethylene glycol dimethacrylate, 5 parts of lauryl methacrylate, 8 parts of trimethylolpropane triacrylate and 10 parts of propylene glycol monomethyl ether acetate.
The processing technology of the glass fiber three-dimensional reinforced light cement batten comprises the following steps:
(1) adding mixed glass fiber and graphene into water, and uniformly mixing in a stirrer;
(2) sequentially adding cement, a micro-expanding agent, coal ash, perlite, fine sand, vermiculite, ceramsite and a regulator into the stirrer in the step (1), and uniformly mixing at normal temperature to obtain a composite slurry; wherein, adding the next material after each material is added and uniformly stirred; the perlite is pretreated as follows: preheating perlite at 700 ℃ for 4 minutes, and then burning the perlite for 5 seconds at 1150 ℃ by high-temperature flame;
(3) filling the glass fiber mesh cloth into two sides of a mold, injecting composite slurry into the mold, standing, and removing the mold after molding to obtain a primary cement batten;
(4) and curing the primary cement batten, and obtaining a finished cement batten after curing.
The mold used in this embodiment was the same as in example 1.
Example 4
A glass fiber three-dimensional reinforced light cement slat is formed by a composite slurry casting mold, and glass fiber gridding cloth is arranged on two sides of the cement slat; the composite slurry comprises the following raw materials in parts by weight: 15 parts of coal ash, 1 part of perlite, 0.5 part of mixed glass fiber, 0.1 part of graphene, 4 parts of fine sand, 2 parts of vermiculite, 2 parts of ceramsite, 31 parts of water, 0.5 part of regulator, 0.1 part of micro-expanding agent and 40 parts of cement; wherein the mixed glass fiber is obtained by mixing glass fibers with lengths of 0.8cm, 1.8cm and 2.8cm according to the mass ratio of 3:2: 1; the regulator comprises the following raw materials in parts by weight: 10 parts of triethylene glycol dimethacrylate, 2 parts of lauryl methacrylate, 5 parts of trimethylolpropane triacrylate and 5 parts of propylene glycol monomethyl ether acetate.
The processing technology of the glass fiber three-dimensional reinforced light cement batten comprises the following steps:
(1) adding mixed glass fiber and graphene into water, and uniformly mixing in a stirrer;
(2) sequentially adding cement, a micro-expanding agent, coal ash, perlite, fine sand, vermiculite, ceramsite and a regulator into the stirrer in the step (1), and uniformly mixing at normal temperature to obtain a composite slurry; wherein, adding the next material after each material is added and uniformly stirred; the perlite is pretreated as follows: preheating perlite for 2 minutes at 650 ℃, and then burning for 3 seconds at 1120 ℃ under high-temperature flame;
(3) filling the glass fiber mesh cloth into two sides of a mold, injecting composite slurry into the mold, standing, and removing the mold after molding to obtain a primary cement batten;
(4) and curing the primary cement batten, and obtaining a finished cement batten after curing.
The mold used in this embodiment was the same as in example 1.
Example 5
A glass fiber three-dimensional reinforced light cement slat is formed by a composite slurry casting mold, and glass fiber gridding cloth is arranged on two sides of the cement slat; the composite slurry comprises the following raw materials in parts by weight: 25 parts of coal ash, 3 parts of perlite, 0.8 part of mixed glass fiber, 0.2 part of graphene, 7 parts of fine sand, 4 parts of vermiculite, 3 parts of ceramsite, 33 parts of water, 0.8 part of regulator, 0.3 part of micro-expanding agent and 60 parts of cement; wherein the mixed glass fiber is obtained by mixing glass fibers with the lengths of 1.2cm, 2.2cm and 3.2cm according to the mass ratio of 4:3: 1; the regulator comprises the following raw materials in parts by weight: 15 parts of triethylene glycol dimethacrylate, 5 parts of lauryl methacrylate, 8 parts of trimethylolpropane triacrylate and 10 parts of propylene glycol monomethyl ether acetate.
The processing technology of the glass fiber three-dimensional reinforced light cement batten comprises the following steps:
(1) adding mixed glass fiber and graphene into water, and uniformly mixing in a stirrer;
(2) sequentially adding cement, a micro-expanding agent, coal ash, perlite, fine sand, vermiculite, ceramsite and a regulator into the stirrer in the step (1), and uniformly mixing at normal temperature to obtain a composite slurry; wherein, adding the next material after each material is added and uniformly stirred; the perlite is pretreated as follows: preheating perlite at 680 ℃ for 3 minutes, and then burning the perlite for 4 seconds at 1140 ℃ under high-temperature flame;
(3) filling the glass fiber mesh cloth into two sides of a mold, injecting composite slurry into the mold, standing, and removing the mold after molding to obtain a primary cement batten;
(4) and curing the primary cement batten, and obtaining a finished cement batten after curing.
The mold used in this embodiment was the same as in example 1.
Comparative example 1
A glass fiber three-dimensional reinforced light cement slat is formed by a composite slurry casting mold, and glass fiber gridding cloth is arranged on two sides of the cement slat; the composite slurry comprises the following raw materials in parts by weight: 25 parts of coal ash, 3 parts of perlite, 0.8 part of mixed glass fiber, 0.2 part of graphene, 7 parts of fine sand, 3 parts of ceramsite, 33 parts of water and 60 parts of cement (compared with example 5, the comparative example does not contain 4 parts of vermiculite, 0.8 part of regulator and 0.3 part of micro-expanding agent);
the processing procedure was in accordance with example 5.
Comparative example 2
A glass fiber three-dimensional reinforced light cement slat is formed by a composite slurry casting mold, and glass fiber gridding cloth is arranged on two sides of the cement slat; the composite slurry comprises the following raw materials in parts by weight: 25 parts of coal ash, 3 parts of perlite, 0.8 part of mixed glass fiber, 0.2 part of graphene, 7 parts of fine sand, 4 parts of vermiculite, 3 parts of ceramsite, 33 parts of water, 0.8 part of regulator, 0.3 part of micro-expanding agent and 60 parts of cement; wherein the mixed glass fiber is obtained by mixing glass fibers with the lengths of 1.2cm, 2.2cm and 3.2cm according to the mass ratio of 4:3: 1;
the processing technology of the glass fiber three-dimensional reinforced light cement batten comprises the following steps:
(1) putting the raw materials into a stirrer, and uniformly mixing at normal temperature to obtain composite slurry;
(2) filling the glass fiber mesh cloth into two sides of a mold, injecting composite slurry into the mold, standing, and removing the mold after molding to obtain a primary cement batten;
(3) and curing the primary cement batten, and obtaining a finished cement batten after curing.
The mold used in this comparative example was identical to that of example 5.
Blank group
A light cement batten is formed by a composite slurry pouring mould, and glass fiber gridding cloth is arranged on two sides of the cement batten; the composite slurry contains glass fibers, and the length of each glass fiber is 3 cm; the cement lath is provided with a through hole.
Experiment:
1. and (3) heat resistance test: the cement slabs of examples 1 to 5, comparative examples 1 to 2 and the blank set, which were 1.5m × 1m × 0.12m in specification, were measured for thermal conductivity of the test samples, respectively, and the test results were recorded as shown in table 1.
TABLE 1 thermal conductivity
Figure BDA0002089779550000081
As can be seen from the test results in Table 1, the thermal conductivity of the products obtained in examples 1-5 of the present invention is better than that of the comparative example, which shows that the products obtained in examples 1-5 of the present invention have good thermal insulation effect,
the thermal conductivity of the example 2 with the added graphene is lower than that of the example 1, which shows that the thermal conductivity can be reduced by adding the graphene, and the graphene has a better heat insulation effect.
2. The cement slabs obtained in examples 1 to 5, comparative examples 1 to 2 and blanks were measured to have a specification of 1.5 m.times.1 m.times.0.12 m according to GBT19631-2005 lightweight porous partition wall slab, and the test results were recorded in Table 2.
TABLE 2 test results
Figure BDA0002089779550000091
As can be seen from the test results in Table 2, the test results of the products obtained in examples 1-5 of the present invention are far better than the standard requirements.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive faculty, based on the technical solutions of the present invention.

Claims (8)

1. A glass fiber three-dimensional reinforced light cement slat is formed by a composite slurry casting mold, and glass fiber gridding cloth is arranged on two sides of the cement slat; the composite slurry is characterized by containing mixed glass fibers with different lengths; the composite slurry comprises the following raw materials in parts by weight: 12-46 parts of coal ash, 0-12 parts of perlite, 0.3-1 part of mixed glass fiber, 0-0.5 part of graphene, 1-8 parts of fine sand, 1-6 parts of vermiculite, 1-5 parts of ceramsite, 30-35 parts of water, 0.3-1.5 parts of regulator, 0.1-0.4 part of micro-expanding agent and 37.5-75 parts of cement; wherein the mixed glass fiber is obtained by mixing glass fibers with lengths of 0.5-1.5cm, 1.6-2.5cm and 2.6-3.5cm according to the mass ratio of 3-6:1-5: 1;
the processing technology of the glass fiber three-dimensional reinforced light cement batten comprises the following steps:
(1) adding mixed glass fiber and graphene into water, and uniformly mixing in a stirrer;
(2) sequentially adding cement, a micro-expanding agent, coal ash, perlite, fine sand, vermiculite, ceramsite and a regulator into the stirrer in the step (1), and uniformly mixing at normal temperature to obtain a composite slurry; wherein, adding the next material after each material is added and uniformly stirred; the perlite is pretreated as follows: preheating perlite for 2-4 minutes in an environment of 650-700 ℃, and then burning for 3-5 seconds in high-temperature flame of 1120-1150 ℃;
(3) filling the glass fiber mesh cloth into two sides of a mold, injecting composite slurry into the mold, standing, and removing the mold after molding to obtain a primary cement batten;
(4) and curing the primary cement batten, and obtaining a finished cement batten after curing.
2. The glass fiber three-dimensional reinforced light cement ribbon board as claimed in claim 1, wherein the composite slurry comprises the following raw materials in parts by weight: 15-25 parts of coal ash, 1-3 parts of perlite, 0.5-0.8 part of mixed glass fiber, 0.1-0.2 part of graphene, 4-7 parts of fine sand, 2-4 parts of vermiculite, 2-3 parts of ceramsite, 31-33 parts of water, 0.5-0.8 part of regulator, 0.1-0.3 part of micro-expanding agent and 40-60 parts of cement; wherein the mixed glass fiber is obtained by mixing glass fibers with lengths of 0.8-1.2cm, 1.8-2.2cm and 2.8-3.2cm according to the mass ratio of 3-4:2-3: 1.
3. The glass fiber three-dimensional reinforced light cement batten according to claim 2, wherein the regulator comprises the following raw materials in parts by weight: 10-15 parts of triethylene glycol dimethacrylate, 2-5 parts of lauryl methacrylate, 5-8 parts of trimethylolpropane triacrylate and 5-10 parts of propylene glycol methyl ether acetate.
4. The glass fiber three-dimensional reinforced light cement batten according to claim 3, wherein the regulator comprises the following raw materials in parts by weight: 12 parts of triethylene glycol dimethacrylate, 4 parts of lauryl methacrylate, 6 parts of trimethylolpropane triacrylate and 7 parts of propylene glycol monomethyl ether acetate.
5. The process for processing the glass fiber three-dimensional reinforced lightweight cement lath as claimed in any one of claims 1 to 4, which comprises the following steps:
(1) adding mixed glass fiber and graphene into water, and uniformly mixing in a stirrer;
(2) sequentially adding cement, a micro-expanding agent, coal ash, perlite, fine sand, vermiculite, ceramsite and a regulator into the stirrer in the step (1), and uniformly mixing at normal temperature to obtain a composite slurry; wherein, adding the next material after each material is added and uniformly stirred; the perlite is pretreated as follows: preheating perlite for 2-4 minutes in an environment of 650-700 ℃, and then burning for 3-5 seconds in high-temperature flame of 1120-1150 ℃;
(3) filling the glass fiber mesh cloth into two sides of a mold, injecting composite slurry into the mold, standing, and removing the mold after molding to obtain a primary cement batten;
(4) and curing the primary cement batten, and obtaining a finished cement batten after curing.
6. The process for manufacturing a glass fiber reinforced light cement lath as claimed in claim 5, wherein in step (3), the mold comprises a hollow rectangular parallelepiped mold body and a cover body mounted on the mold body, wherein a plurality of cylindrical hole-making columns are fixedly mounted on one side of the cover body facing the mold body, and the bottom ends of the hole-making columns can touch the inner bottom surface of the mold body.
7. The process for manufacturing the glass fiber reinforced lightweight cement plank as claimed in claim 6, wherein the side plate of the mold body is a detachable side plate.
8. The processing technology of the glass fiber three-dimensional reinforced lightweight cement ribbon board as claimed in claim 6, wherein a handle is provided on a side of the cover body facing away from the mold body.
CN201910499634.9A 2019-06-11 2019-06-11 Glass fiber three-dimensional reinforced light cement batten Active CN110228971B (en)

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CN104876498A (en) * 2015-04-08 2015-09-02 重庆千向建材有限公司 Light-weight energy-saving partition wall slat and manufacturing method thereof
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