CN109180134A - A kind of fiber reinforced cement board and its preparation method and application - Google Patents
A kind of fiber reinforced cement board and its preparation method and application Download PDFInfo
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- CN109180134A CN109180134A CN201811407551.4A CN201811407551A CN109180134A CN 109180134 A CN109180134 A CN 109180134A CN 201811407551 A CN201811407551 A CN 201811407551A CN 109180134 A CN109180134 A CN 109180134A
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- 239000000835 fiber Substances 0.000 title claims abstract description 76
- 239000004568 cement Substances 0.000 title claims abstract description 71
- 238000002360 preparation method Methods 0.000 title claims abstract description 36
- 239000000203 mixture Substances 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229920002994 synthetic fiber Polymers 0.000 claims abstract description 19
- 239000012209 synthetic fiber Substances 0.000 claims abstract description 15
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 241000196324 Embryophyta Species 0.000 claims description 29
- 239000000843 powder Substances 0.000 claims description 26
- 239000010902 straw Substances 0.000 claims description 16
- -1 polypropylene Polymers 0.000 claims description 13
- 241000209094 Oryza Species 0.000 claims description 12
- 235000007164 Oryza sativa Nutrition 0.000 claims description 12
- 239000004743 Polypropylene Substances 0.000 claims description 12
- 229920001155 polypropylene Polymers 0.000 claims description 12
- 235000009566 rice Nutrition 0.000 claims description 12
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical class [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 11
- 239000010903 husk Substances 0.000 claims description 10
- 241000209140 Triticum Species 0.000 claims description 8
- 235000021307 Triticum Nutrition 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 239000004372 Polyvinyl alcohol Substances 0.000 claims 1
- 238000001035 drying Methods 0.000 claims 1
- 238000009499 grossing Methods 0.000 claims 1
- 239000002245 particle Substances 0.000 claims 1
- 229920002239 polyacrylonitrile Polymers 0.000 claims 1
- 229920002451 polyvinyl alcohol Polymers 0.000 claims 1
- 238000002791 soaking Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 239000011148 porous material Substances 0.000 abstract description 4
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 230000003068 static effect Effects 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 abstract 2
- 230000000052 comparative effect Effects 0.000 description 23
- 238000003756 stirring Methods 0.000 description 23
- 239000006185 dispersion Substances 0.000 description 12
- 239000002994 raw material Substances 0.000 description 12
- 239000008399 tap water Substances 0.000 description 11
- 235000020679 tap water Nutrition 0.000 description 11
- 235000013339 cereals Nutrition 0.000 description 9
- 238000007363 ring formation reaction Methods 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 6
- 239000002023 wood Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010348 incorporation Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000003487 anti-permeability effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011093 chipboard Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/14—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements stone or stone-like materials, e.g. ceramics concrete; of glass or with an outer layer of stone or stone-like materials or 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
-
- 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
- C04B28/18—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 mixtures of the silica-lime type
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Architecture (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Civil Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
本发明公开了一种纤维增强水泥板及其制备方法和应用。该制备方法包括：(1)将水泥、改性植物纤维、合成纤维和水混合均匀，得到混合料；(2)将所述混合料进行入模振动；(3)将所述入模振动后的模型进行平整、养护和脱模，得到所述纤维增强水泥板。本发明的纤维增强水泥板保温隔热性能良好，由于改性植物纤维本身的多孔结构和低导热率，当改性植物纤维的掺量达到一定比例后，使板材内部的细孔更多且分布更加均匀，由于细孔结构对空气层的稳定作用较空气静态稳定性增强，因此板材材料的导热率变小，进而使得本发明的板材具有良好的保温隔热性能。The invention discloses a fiber-reinforced cement board and a preparation method and application thereof. The preparation method includes: (1) uniformly mixing cement, modified plant fibers, synthetic fibers and water to obtain a mixture; (2) vibrating the mixture into a mold; (3) vibrating the mixture into a mold The model is flattened, cured and demolded to obtain the fiber reinforced cement board. The fiber reinforced cement board of the present invention has good thermal insulation performance. Due to the porous structure and low thermal conductivity of the modified plant fiber itself, when the content of the modified plant fiber reaches a certain proportion, the pores inside the board are more and more distributed. It is more uniform, because the pore structure has a stronger stabilization effect on the air layer than the static stability of the air, so the thermal conductivity of the board material becomes smaller, so that the board of the present invention has good thermal insulation performance.
Description
Technical field
The invention belongs to building material technical fields, more particularly, to a kind of fiber reinforced cement board and its preparation side
Method and application.
Background technique
Existing decorative plate of outer wall is mainly made of stone material, ceramic tile, cement synthetic material, wood moulding etc..Lithotome is through opening
It the techniques such as adopts, cut, polishing and decorative plate of outer wall is made, having many advantages, such as that beautiful, durability is good, but its toughness is poor is easy to happen
Brittleness fractures, and its manufacturing process can generate serious pollution and the wasting of resources to environment.Wood plastic boards be with using polyethylene,
Polypropylene and polyvinyl chloride etc., instead of common resin adhesive, with wood powder, rice husk, the stalk etc. more than 35%-70% or more
Plant fiber is mixed into new wood materials, then through plastic processings such as extruding, molding, injection moldings, the plate produced
Or profile, have many advantages, such as that plasticity is strong, good mechanical performance, but high temperature resistance is poor, 200 DEG C are the upper of wood moulding process operation
Limit.Cement synthetic material mainly has cement-bonded wood chipboard class and cement fibrolite plate class, using cement or modified cement and fiber or plant
It is formed after object mixing, but existing cement synthetic material, there are production technology complexity, heat preservation of board, durability are undesirable
Problem.
Summary of the invention
The purpose of the present invention is overcoming the deficiencies of existing technologies, a kind of fiber reinforced cement board is provided, so that the water of preparation
Mud synthetic material has good heat insulating ability and durability, and preparation process is simple, is readily produced.
To achieve the goals above, the first aspect of the present invention provides a kind of preparation method of fiber reinforced cement board, should
Preparation method includes:
(1) cement, modified plant fibers, synthetic fibers and water are uniformly mixed, obtain mixture；
(2) mixture vibrate into mould；
(3) by it is described enter mould vibration after model carry out it is smooth, maintenance and demoulding, obtain the fiber reinforced cement board.
The second aspect of the present invention provides the fiber reinforced cement board of above-mentioned preparation method preparation.
The third aspect of the present invention provides application of the above-mentioned fiber reinforced cement board as decorative plate of outer wall.
Technical solution of the present invention has the following beneficial effects:
(1) energy-saving effect is obvious.Exterior wall of the invention is good with heat preservation of board heat-proof quality, due to modified plant fibers sheet
The porous structure and low heat conductivity of body make pore inside plate more after the volume of modified plant fibers reaches certain proportion
More and distribution is more uniform, since stabilization of the pore structure to air layer enhances compared with air static stability, plate
The thermal conductivity of material becomes smaller, so that plate of the invention has good thermal and insulating performance.
(2) present invention can be improved the anti-permeability performance of plate by adding synthetic fibers into plate；Simultaneously because being added
Synthetic fibers, so that the anti-bending strength of plate and cracking resistance improve, synthetic fibers are in plate by curved destruction and contraction process
In play good effect of contraction.
(3) at low cost, high production efficiency.The addition volume of modified plant fibers in the present invention can reach overall substantially
Long-pending half, and modified plant fibers are as agricultural and sideline product, it is cheap, the cost of plate product can be effectively reduced；Together
When the raw materials used type of plate of the invention is few, combination process is simple, the production efficiency of plate product can be effectively improved.
Other features and advantages of the present invention will then part of the detailed description can be specified.
Specific embodiment
The preferred embodiment of the present invention is described in more detail below.Although the following describe preferred implementations of the invention
Mode, however, it is to be appreciated that may be realized in various forms the present invention without that should be limited by the embodiments set forth herein.Phase
Instead, these embodiments are provided so that the present invention is more thorough and complete, and can be by the scope of the present invention completely
It is communicated to those skilled in the art.
The first aspect of the present invention provides a kind of preparation method of fiber reinforced cement board, which includes:
(1) cement, modified plant fibers, synthetic fibers and water are uniformly mixed, obtain mixture；
(2) mixture vibrate into mould；
(3) by it is described enter mould vibration after model carry out it is smooth, maintenance and demoulding, obtain the fiber reinforced cement board.
In the present invention, it is described enter mould vibration for will mix mixture dispersion pour into die cavity, then vibrate；Its
In, it is described to vibrate for model is transported on shake table and is vibrated, it is vibrated to surface and stops vibration when having laitance, generating without extra bubble
It is dynamic.
In the present invention, silica and cement, water in modified plant fibers, which react, generates hydrated calcium silicate, reaction
The appearance of object enhances material compactness, so that the impermeability of material is improved, but since plant fiber is shorter in cement
Bonding force is limited, and bonding plane is easy to produce crack under water pressure, can generate certain influence to the impermeability of material；It is closed when being added
After fiber, the longer bonding force of the anchorage length of synthetic fibers and cement is larger, and synthetic fibers are deposited in the form of three-dimensional netted
Playing the role of the fixed plant fiber of multidirectional envelope, modified plant fibers can be reduced under effect of water pressure in this way and cement is viscous
The crack of junction occurs.Two kinds of fibers play the role of reinforcing material compactness one there are one and play restraint crack
Effect, the mating reaction of two kinds of fibers makes the anti-permeability performance of material be greatly improved.
In accordance with the present invention it is preferred that the modified plant fibers comprise the following steps: plant fiber is saturated lime
Water impregnates, is dry, obtains the modified plant fibers.
Preferably, in the present invention, plant fiber is 22-26h with the time that saturated limewater impregnates.
In accordance with the present invention it is preferred that the modified plant fibers are modified powdered rice hulls, modified wheat husk powder, modified straw powder
At least one of with modified straw powder.
In accordance with the present invention it is preferred that the synthetic fibers are polypropylene fibre, cyclization and vinal
At least one of.
In accordance with the present invention it is preferred that the mass ratio of the cement, modified plant fibers and water is 1 in step (1):
(0.25-0.3): (0.43-0.47)；The mass ratio of the modified plant fibers and synthetic fibers is 1:(0.025-0.0425).
In the present invention, the hybrid mode of each component of step (1) can be suitble to hybrid mode of the invention to be any, preferably
The cement and modified plant fibers are uniformly mixed by ground, incorporation time 30-60s, then with the synthesis broken up in advance
Fiber is uniformly mixed, and incorporation time 5-15s is finally uniformly mixed with water, and incorporation time 60-80s obtains the mixing
Material；
In accordance with the present invention it is preferred that the average grain diameter of the modified plant fibers is not more than 0.5mm；The synthetic fibers
Length be 8-10mm, diameter be 12-48 μm.
It is described smooth to flatten or smooth out in accordance with the present invention it is preferred that in step (3).
In accordance with the present invention it is preferred that the maintenance conserves 28d to support room in mark, or is steam press maintenance in step (3)
8-10h。
The second aspect of the present invention provides a kind of fiber reinforced cement board of above-mentioned preparation method preparation.
The third aspect of the present invention provides a kind of application of above-mentioned fiber reinforced cement board as decorative plate of outer wall.
The present invention is further illustrated by the following examples:
Cement used in following embodiment and comparative example is No. 42.5 ordinary portland cements of PO.
Embodiment 1
The present embodiment provides a kind of fiber reinforced cement board, it is specific the preparation method is as follows:
(1) prepare raw material: cement 20kg, tap water 9kg, polypropylene fibre 0.155kg；By powdered rice hulls saturated limewater
It impregnates to eluriate twice afterwards for 24 hours and dry, obtain modified powdered rice hulls 6.0kg, average grain diameter 0.5mm；Wherein, the length of polypropylene fibre
Degree is 9mm, and diameter is 34 μm；
(2) it mixes and stirs program: first cement and modified powdered rice hulls being poured into and stirs 30s in blender, then will break up in advance
Polypropylene fibre is added, and stirs while adding, 10s is stirred for after addition, will finally shift to an earlier date ready water and stirring is added
1min obtains mixture；
(3) enter mould vibration: the mixture mixed dispersion being poured into die cavity, then model is transported on shake table and is shaken
It is dynamic, it is vibrated to surface and stops vibration when having laitance, generating without extra bubble；
(4) it conserves: the model that vibration finishes is flattened, be put into the feeding room 28d of mark and conserved, then demoulding, code base
It stacks.
Embodiment 2
The present embodiment provides a kind of fiber reinforced cement board, it is specific the preparation method is as follows:
(1) prepare raw material: cement 20kg, tap water 9kg, polypropylene fibre 0.155kg；By wheat husk powder saturated limewater
It impregnates to eluriate twice afterwards for 24 hours and dry, obtain modified wheat husk powder 5.6kg, average grain diameter 0.5mm；Wherein, the length of polypropylene fibre
Degree is 9mm, and diameter is 34 μm；
(2) it mixes and stirs program: first cement and modified wheat husk powder being poured into and stirs 30s in blender, then will break up in advance
Polypropylene fibre is added, and stirs while adding, 10s is stirred for after addition, will finally shift to an earlier date ready water and stirring is added
1min obtains mixture；
(3) enter mould vibration: the mixture mixed dispersion being poured into die cavity, then model is transported on shake table and is shaken
It is dynamic, it is vibrated to surface and stops vibration when having laitance, generating without extra bubble；
(4) it conserves: the model that vibration finishes being flattened, steam press maintenance 9h, then demoulding, code base are stacked.
Embodiment 3
The present embodiment provides a kind of fiber reinforced cement board, it is specific the preparation method is as follows:
(1) prepare raw material: cement 20kg, tap water 9kg, cyclization 0.201kg；By rice straw powder saturation lime
Water is impregnated to eluriate twice afterwards for 24 hours and be dried, and obtains modified straw powder 6.0kg, average grain diameter 0.5mm；Wherein, cyclization
Length be 9mm, diameter be 15 μm；
(2) it mixes and stirs program: first cement and modified straw powder being poured into and stir 30s in blender, then will break up in advance
Cyclization is added, and stirs while adding, 10s is stirred for after addition, will finally shift to an earlier date ready water addition and stir
1min is mixed, mixture is obtained；
(3) enter mould vibration: the mixture mixed dispersion being poured into die cavity, then model is transported on shake table and is shaken
It is dynamic, it is vibrated to surface and stops vibration when having laitance, generating without extra bubble；
(4) it conserves: the model that vibration finishes is flattened, be put into the feeding room 28d of mark and conserved, then demoulding, code base
It stacks.
Embodiment 4
The present embodiment provides a kind of fiber reinforced cement board, it is specific the preparation method is as follows:
(1) prepare raw material: cement 20kg, tap water 9kg, vinal 0.221kg；By straw powder saturation lime
Water is impregnated to eluriate twice afterwards for 24 hours and be dried, and obtains modified straw powder 5.2kg, average grain diameter 0.5mm；Wherein, vinal
Length be 9mm, diameter be 12 μm；
(2) it mixes and stirs program: first cement and modified straw powder being poured into and stir 30s in blender, then will break up in advance
Vinal is added, and stirs while adding, 10s is stirred for after addition, will finally shift to an earlier date ready water addition and stir
1min is mixed, mixture is obtained；
(3) enter mould vibration: the mixture mixed dispersion being poured into die cavity, then model is transported on shake table and is shaken
It is dynamic, it is vibrated to surface and stops vibration when having laitance, generating without extra bubble；
(4) it conserves: the model that vibration finishes is flattened, be put into the feeding room 28d of mark and conserved, then demoulding, code base
It stacks.
Comparative example 1
This comparative example provides a kind of fiber reinforced cement board, it is specific the preparation method is as follows:
(1) prepare raw material: cement 20kg, tap water 9kg；Powdered rice hulls are impregnated with saturated limewater and are eluriated afterwards twice for 24 hours
It dries, obtains modified powdered rice hulls 6.0kg, average grain diameter 0.5mm；
(2) it mixes and stirs program: first cement and modified powdered rice hulls being poured into and stirs 30s in blender, it then will be ready in advance
Water be added stirring 1min, obtain mixture；
(3) enter mould vibration: the mixture mixed dispersion being poured into die cavity, then model is transported on shake table and is shaken
It is dynamic, it is vibrated to surface and stops vibration when having laitance, generating without extra bubble；
(4) it conserves: the model that vibration finishes is flattened, be put into the feeding room 28d of mark and conserved, then demoulding, code base
It stacks.
Comparative example 2
This comparative example provides a kind of fiber reinforced cement board, it is specific the preparation method is as follows:
(1) prepare raw material: cement 20kg, tap water 9kg, polypropylene fibre 0.155kg；Wherein, the length of polypropylene fibre
Degree is 9mm, and diameter is 34 μm；
(2) it mixes and stirs program: the polypropylene fibre broken up in advance being added in cement, is stirred while adding, after addition
It is stirred for 30s, then will shift to an earlier date ready water and stirring 1min is added, and obtain mixture；
(3) enter mould vibration: the mixture mixed dispersion being poured into die cavity, then model is transported on shake table and is shaken
It is dynamic, it is vibrated to surface and stops vibration when having laitance, generating without extra bubble；
(4) it conserves: the model that vibration finishes is flattened, be put into the feeding room 28d of mark and conserved, then demoulding, code base
It stacks.
Comparative example 3
This comparative example provides a kind of fiber reinforced cement board, it is specific the preparation method is as follows:
(1) prepare raw material: cement 20kg, tap water 9kg；Wheat husk powder is impregnated with saturated limewater and is eluriated afterwards twice for 24 hours
It dries, obtains modified wheat husk powder 5.6kg, average grain diameter 0.5mm；
(2) it mixes and stirs program: first cement and modified wheat husk powder being poured into and stirs 30s in blender, it then will be ready in advance
Water be added stirring 1min, obtain mixture；
(3) enter mould vibration: the mixture mixed dispersion being poured into die cavity, then model is transported on shake table and is shaken
It is dynamic, it is vibrated to surface and stops vibration when having laitance, generating without extra bubble；
(4) it conserves: the model that vibration finishes being flattened, steam press maintenance 9h, then demoulding, code base are stacked.
Comparative example 4
This comparative example provides a kind of fiber reinforced cement board, it is specific the preparation method is as follows:
(1) prepare raw material: cement 20kg, tap water 9kg；Rice straw powder is impregnated with saturated limewater and is eluriated afterwards twice for 24 hours
It dries, obtains modified straw powder 6.0kg, average grain diameter 0.5mm；
(2) it mixes and stirs program: first cement and modified straw powder being poured into and stir 30s in blender, it then will be ready in advance
Water be added stirring 1min, obtain mixture；
(3) enter mould vibration: the mixture mixed dispersion being poured into die cavity, then model is transported on shake table and is shaken
It is dynamic, it is vibrated to surface and stops vibration when having laitance, generating without extra bubble；
(4) it conserves: the model that vibration finishes is flattened, be put into the feeding room 28d of mark and conserved, then demoulding, code base
It stacks.
Comparative example 5
This comparative example provides a kind of fiber reinforced cement board, it is specific the preparation method is as follows:
(1) prepare raw material: cement 20kg, tap water 9kg；Straw powder is impregnated with saturated limewater and is eluriated afterwards twice for 24 hours
It dries, obtains modified straw powder 5.2kg, average grain diameter 0.5mm；
(2) it mixes and stirs program: first cement and modified straw powder being poured into and stir 30s in blender, it then will be ready in advance
Water be added stirring 1min, obtain mixture；
(3) enter mould vibration: the mixture mixed dispersion being poured into die cavity, then model is transported on shake table and is shaken
It is dynamic, it is vibrated to surface and stops vibration when having laitance, generating without extra bubble；
(4) it conserves: the model that vibration finishes is flattened, be put into the feeding room 28d of mark and conserved, then demoulding, code base
It stacks.
Comparative example 6
This comparative example provides a kind of fiber reinforced cement board, it is specific the preparation method is as follows:
(1) prepare raw material: cement 20kg, tap water 9kg, cyclization 0.201kg；Wherein, cyclization
Length be 9mm, diameter be 15 μm；
(2) it mixes and stirs program: the cyclization broken up in advance being added in cement, is stirred while adding, addition finishes
After be stirred for 30s, then will shift to an earlier date ready water and stirring 1min is added, and obtain mixture；
(3) enter mould vibration: the mixture mixed dispersion being poured into die cavity, then model is transported on shake table and is shaken
It is dynamic, it is vibrated to surface and stops vibration when having laitance, generating without extra bubble；
(4) it conserves: the model that vibration finishes is flattened, be put into the feeding room 28d of mark and conserved, then demoulding, code base
It stacks.
Comparative example 7
This comparative example provides a kind of fiber reinforced cement board, it is specific the preparation method is as follows:
(1) prepare raw material: cement 20kg, tap water 9kg, vinal 0.221kg；Wherein, vinal
Length be 9mm, diameter be 12 μm；
(2) it mixes and stirs program: the vinal broken up in advance being added in cement, is stirred while adding, addition finishes
After be stirred for 30s, then will shift to an earlier date ready water and stirring 1min is added, and obtain mixture；
(3) enter mould vibration: the mixture mixed dispersion being poured into die cavity, then model is transported on shake table and is shaken
It is dynamic, it is vibrated to surface and stops vibration when having laitance, generating without extra bubble；
(4) it conserves: the model that vibration finishes is flattened, be put into the feeding room 28d of mark and conserved, then demoulding, code base
It stacks.
Test case
The fiber reinforced cement board of embodiment and comparative example preparation is tested for the property, wherein according to GB/T10294-
2008 standards carry out Determination of conductive coefficients, carry out impermeability pressure test according to JGJ/T70-2009 standard, specific test result is shown in
Table 1.
Table 1
| Thermal coefficient (W/ (mk)) | Impermeability pressure (MPa) | |
| Embodiment 1 | 0.203 | 0.40 |
| Embodiment 2 | 0.202 | 0.41 |
| Embodiment 3 | 0.203 | 0.40 |
| Embodiment 4 | 0.202 | 0.40 |
| Comparative example 1 | 0.202 | 0.24 |
| Comparative example 2 | 0.532 | 0.33 |
| Comparative example 3 | 0.201 | 0.23 |
| Comparative example 4 | 0.202 | 0.23 |
| Comparative example 5 | 0.201 | 0.22 |
| Comparative example 6 | 0.533 | 0.32 |
| Comparative example 7 | 0.535 | 0.32 |
Various embodiments of the present invention are described above, above description is exemplary, and non-exclusive, and
It is not limited to disclosed each embodiment.Without departing from the scope and spirit of illustrated each embodiment, for this skill
Many modifications and changes are obvious for the those of ordinary skill in art field.
Claims (10)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113173750A (en) * | 2021-04-27 | 2021-07-27 | 西南大学 | Preparation method of antibacterial high-performance fiber concrete |
| CN116947390A (en) * | 2023-07-31 | 2023-10-27 | 四川大学 | A method for preparing bamboo residual fiber-reinforced cement decorative boards |
| CN119773030A (en) * | 2025-03-07 | 2025-04-08 | 东华大学 | Polyvinyl alcohol fiber reinforced cement board and manufacturing method thereof |
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| CN106431110A (en) * | 2016-09-09 | 2017-02-22 | 天津工业大学 | Plant powder enhanced cement board and manufacturing method thereof |
| CN107265952A (en) * | 2017-06-28 | 2017-10-20 | 常州力纯数码科技有限公司 | A kind of rice hull cellulose cement plate and preparation method thereof |
| CN107447688A (en) * | 2017-06-23 | 2017-12-08 | 江苏新光环保工程有限公司 | A kind of roadbed non-metal sound barrier and preparation method thereof |
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| CN1296465A (en) * | 1998-03-06 | 2001-05-23 | Ask株式会社 | Cement moldings containing vegetable fiber and method for producing the same |
| CN106431110A (en) * | 2016-09-09 | 2017-02-22 | 天津工业大学 | Plant powder enhanced cement board and manufacturing method thereof |
| CN107447688A (en) * | 2017-06-23 | 2017-12-08 | 江苏新光环保工程有限公司 | A kind of roadbed non-metal sound barrier and preparation method thereof |
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Cited By (3)
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| CN113173750A (en) * | 2021-04-27 | 2021-07-27 | 西南大学 | Preparation method of antibacterial high-performance fiber concrete |
| CN116947390A (en) * | 2023-07-31 | 2023-10-27 | 四川大学 | A method for preparing bamboo residual fiber-reinforced cement decorative boards |
| CN119773030A (en) * | 2025-03-07 | 2025-04-08 | 东华大学 | Polyvinyl alcohol fiber reinforced cement board and manufacturing method thereof |
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