CN113979696A - Formula and production process of glass fiber reinforced precast concrete member - Google Patents
Formula and production process of glass fiber reinforced precast concrete member Download PDFInfo
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- CN113979696A CN113979696A CN202111406367.XA CN202111406367A CN113979696A CN 113979696 A CN113979696 A CN 113979696A CN 202111406367 A CN202111406367 A CN 202111406367A CN 113979696 A CN113979696 A CN 113979696A
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- 239000003365 glass fiber Substances 0.000 title claims abstract description 30
- 239000011178 precast concrete Substances 0.000 title claims abstract description 22
- 238000009472 formulation Methods 0.000 title claims description 11
- 238000004519 manufacturing process Methods 0.000 title abstract description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000000839 emulsion Substances 0.000 claims abstract description 28
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000004568 cement Substances 0.000 claims abstract description 26
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 22
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 16
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 13
- 229910000077 silane Inorganic materials 0.000 claims abstract description 13
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 13
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 239000006004 Quartz sand Substances 0.000 claims abstract description 10
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 10
- 229920000642 polymer Polymers 0.000 claims abstract description 10
- 239000003513 alkali Substances 0.000 claims abstract description 8
- 238000005507 spraying Methods 0.000 claims description 39
- 239000002002 slurry Substances 0.000 claims description 21
- 239000000835 fiber Substances 0.000 claims description 15
- -1 polyoxypropylene glycerol Polymers 0.000 claims description 14
- 238000004513 sizing Methods 0.000 claims description 14
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 12
- 239000007921 spray Substances 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 210000002469 basement membrane Anatomy 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 8
- 239000000741 silica gel Substances 0.000 claims description 8
- 229910002027 silica gel Inorganic materials 0.000 claims description 8
- 239000004567 concrete Substances 0.000 claims description 7
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 claims description 6
- RBNPOMFGQQGHHO-UHFFFAOYSA-N glyceric acid Chemical compound OCC(O)C(O)=O RBNPOMFGQQGHHO-UHFFFAOYSA-N 0.000 claims description 6
- 229920002503 polyoxyethylene-polyoxypropylene Polymers 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- 239000011150 reinforced concrete Substances 0.000 claims description 6
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 5
- 230000001680 brushing effect Effects 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- BWHOZHOGCMHOBV-UHFFFAOYSA-N Benzalacetone Natural products CC(=O)C=CC1=CC=CC=C1 BWHOZHOGCMHOBV-UHFFFAOYSA-N 0.000 claims description 3
- 229920000877 Melamine resin Polymers 0.000 claims description 3
- 229910003243 Na2SiO3·9H2O Inorganic materials 0.000 claims description 3
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 claims description 3
- 239000011398 Portland cement Substances 0.000 claims description 3
- 239000012445 acidic reagent Substances 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- 125000001931 aliphatic group Chemical group 0.000 claims description 3
- 150000001412 amines Chemical class 0.000 claims description 3
- 238000009388 chemical precipitation Methods 0.000 claims description 3
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 3
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 239000000194 fatty acid Substances 0.000 claims description 3
- 229930195729 fatty acid Natural products 0.000 claims description 3
- IVJISJACKSSFGE-UHFFFAOYSA-N formaldehyde;1,3,5-triazine-2,4,6-triamine Chemical group O=C.NC1=NC(N)=NC(N)=N1 IVJISJACKSSFGE-UHFFFAOYSA-N 0.000 claims description 3
- NVVZQXQBYZPMLJ-UHFFFAOYSA-N formaldehyde;naphthalene-1-sulfonic acid Chemical compound O=C.C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 NVVZQXQBYZPMLJ-UHFFFAOYSA-N 0.000 claims description 3
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 3
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 claims description 3
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 3
- 229920005646 polycarboxylate Polymers 0.000 claims description 3
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 3
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 3
- 229920001451 polypropylene glycol Polymers 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000007788 roughening Methods 0.000 claims description 3
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 claims description 3
- 239000004299 sodium benzoate Substances 0.000 claims description 3
- 235000010234 sodium benzoate Nutrition 0.000 claims description 3
- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical compound NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 claims description 3
- BWHOZHOGCMHOBV-BQYQJAHWSA-N trans-benzylideneacetone Chemical compound CC(=O)\C=C\C1=CC=CC=C1 BWHOZHOGCMHOBV-BQYQJAHWSA-N 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims 1
- 229920002545 silicone oil Polymers 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 238000005282 brightening Methods 0.000 abstract description 5
- 239000000654 additive Substances 0.000 abstract description 4
- 239000004570 mortar (masonry) Substances 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 230000000996 additive effect Effects 0.000 abstract description 2
- 239000003086 colorant Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000004480 active ingredient Substances 0.000 description 4
- 238000004945 emulsification Methods 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000006253 efflorescence Methods 0.000 description 2
- 239000003995 emulsifying agent Substances 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 206010037844 rash Diseases 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000002585 base Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 229910003471 inorganic composite material Inorganic materials 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- 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
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped 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
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/04—Discharging the shaped articles
- B28B13/06—Removing the shaped articles from moulds
-
- 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
- C04B2111/80—Optical properties, e.g. transparency or reflexibility
- C04B2111/82—Coloured materials
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a glass fiber reinforced precast concrete member formula and a production process thereof, wherein the used raw materials comprise the following components in parts by weight: 30-50 parts of cement, 40-60 parts of quartz sand, 1-3 parts of titanium dioxide, 2-3 parts of alkali-resistant glass fiber yarns, 0.5-1 part of polymer emulsion, 1-3 parts of silane emulsion, 0.1-0.5 part of water reducing agent, 0.2-0.5 part of defoaming agent, 0.10-0.25 part of brightening agent, 0.2-0.3 part of silicon dioxide, 0.04-0.06 part of superfine toner and 7-15 parts of water, and the experiment adjustment is carried out by adding additives of different types and proportions, thereby obtaining the additive with better adaptability and the optimal proportion, leading the sprayed prefabricated member mortar to meet the requirement that the construction performance, the mechanical property and the durability can meet the standard GB/T25181, the prefabricated member surface of production promptly is clean level and smooth, has high strength, high tenacity, water-proof effects is good, the colour is diversified, has reduced workman intensity of labour simultaneously, has good application prospect.
Description
Technical Field
The invention relates to the technical field of glass fiber reinforced precast concrete plates, in particular to a glass fiber reinforced precast concrete member formula and a production process thereof.
Background
The existing building industry mainly adopts fair-faced concrete or stone as a main material for decoration, and has the defects that: the structure is not stable enough, the physical property is not good, the requirement of enduring the sun and rain for a long time can not be met, and the cost is high. The glass fiber reinforced precast concrete is prepared by using alkali-resistant glass fiber as a reinforcing material, using low-alkalinity cement as a cementing material and doping proper aggregate to form a base material, and preparing the novel inorganic composite material by the production processes of spraying, vertical mold casting, extruding, pulp flowing and the like. The glass fiber reinforced precast concrete board as a novel decorative material has wide development prospect due to the characteristics of light weight, high strength and toughness and low cost.
However, how to ensure that the surface of the glass fiber reinforced precast concrete plate has clean and flat appearance, and the glass fiber reinforced precast concrete plate has high strength, high toughness and good waterproof effect, and various colors can be modulated according to requirements, and simultaneously, the labor intensity of workers is reduced, which is one of the key problems influencing the popularization of the glass fiber reinforced precast concrete plate in the building industry.
Therefore, it is necessary to invent a glass fiber reinforced precast concrete member formula and a production process thereof to solve the above problems.
Disclosure of Invention
The invention aims to provide a glass fiber reinforced precast concrete member formula and a production process thereof, which are characterized in that additives with different types and proportions are added for experimental adjustment, so that the additive with better adaptability and the optimal proportion are obtained, the mortar for spraying the precast member meets the requirement that the mortar can meet the standard GB/T25181 from the construction performance, the mechanical performance to the durability, namely, the produced precast member has a clean and flat surface, high strength, high toughness, good waterproof effect and diversified colors, the labor intensity of workers is reduced, and the glass fiber reinforced precast concrete member formula has a good application prospect, thereby overcoming the defects in the technology.
In order to achieve the above purpose, the invention provides the following technical scheme: the formula of the glass fiber reinforced precast concrete member and the production process thereof are disclosed, wherein the used raw materials comprise the following components in parts by weight:
30-50 parts of cement;
40-60 parts of quartz sand;
1-3 parts of titanium dioxide;
2-3 parts of alkali-resistant glass fiber yarns;
0.5-1 part of polymer emulsion;
1-3 parts of silane emulsion;
0.1-0.5 part of water reducing agent;
0.2-0.5 part of defoaming agent;
0.10-0.25 part of brightener;
0.2-0.3 part of silicon dioxide;
0.04 to 0.06 portion of superfine toner
7-15 parts of water.
Preferably, the cement is white 52.5 ordinary portland cement, the quartz sand is 20-40 meshes, and the length of the alkali-resistant glass fiber is 1.5-4.5 cm.
Preferably, the titanium dioxide is set as titanium dioxide, the polymer emulsion is set as acrylic emulsion, and the ultrafine toner is set as 280-310 mesh iron oxide toner.
Preferably, the water reducing agent is a sulfonated melamine formaldehyde condensate (melamine system), an aminosulfonate system, an aliphatic system, a polycarboxylate system, or a naphthalenesulfonate formaldehyde condensate (naphthalene system).
Preferably, the defoaming agent is silicone emulsion, a higher alcohol fatty acid ester complex, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene amine ether, polyoxypropylene glycerol ether, polyoxypropylene polyoxyethylene glycerol ether or polydimethylsiloxane.
Preferably, the brightening agent is composed of benzalacetone, nonylphenol polyoxyethylene ether, sodium benzoate, a dispersing agent NNO and water.
Preferably, the silicon dioxide is arranged into nano-scale spherical silicon dioxide powder, and the silicon dioxide is Na2SiO3·9H2O as raw material, concentrated H2SO4The acid reagent is prepared by a chemical precipitation method.
A production process of a glass fiber reinforced precast concrete member comprises the following specific preparation steps:
(A) and (3) experimental preparation: firstly, paving a layer of silica gel basement membrane on a mould platform, placing a prefabricated part mould on the basement membrane, and coating a water-based release agent;
(B) and stirring the cement slurry: according to parts by weight, 13 parts of water, 1 part of polymer emulsion, 0.2 part of water reducing agent, 0.2 part of defoaming agent, 0.25 part of brightener, 0.3 part of silicon dioxide, 40 parts of quartz sand, 40 parts of cement, 2 parts of titanium dioxide and 0.05 part of toner are sequentially added into a stirring barrel, and the mixture is put into a high-shear stirring machine to be stirred for 5 to 10 minutes at the temperature of between 20 and 25 ℃ to obtain cement slurry with good fluidity;
(C) and spraying cement slurry: pouring the stirred cement slurry into a spraying machine, spraying the cement slurry into a mold by using the spraying machine, wherein the spraying direction is that a spray gun downwards forms an included angle of 40-45 degrees with the spraying surface, the spraying speed is 3-4mm for each layer, and the spraying paths are uniformly criss-cross, namely after spraying once along the horizontal direction, spraying once again along the vertical direction.
(D) And spraying fibers: when the height of the sizing agent on the surface of the mould is sprayed to 0.5-1.0cm, replacing a fiber spray gun to spray fibers until the fibers on the surface of the sizing agent are uniformly distributed, compacting by using a roller to remove air bubbles and improve the bonding degree of the fibers and the sizing agent when each layer is sprayed, and continuously spraying the sizing agent when the height of the sizing agent is 2.5-3.3 cm after compacting treatment;
(E) and (3) processing: roughening the slurry surface after initial setting, pouring reinforced concrete to the horizontal height of the mold, placing the heat insulation plate and the connecting piece, pouring a layer of reinforced concrete, performing light-collecting treatment on the surface of the member, and naturally curing;
(F) and demolding: when in demoulding, firstly removing the fixing screw and the fixing bolt, then removing the water and electricity connector, then removing the fixing sleeve, finally removing the mould, performing corner treatment, and removing burrs of the corner;
(G) and hoisting, placing the prefabricated part in an open place, and brushing the silane emulsion on the sprayed surface.
Preferably, in the step (E), after the concrete is poured, the feeding height is 40cm-50cm, the concrete is uniformly and continuously poured, strong impact on the surface of the slurry during discharging is avoided, the vibrating depth is noticed during vibrating of a vibrating rod, and the natural curing time is 20h-30 h.
Preferably, in the step (G), the silane emulsion is brushed with water in a ratio of 1-3:10-15, and the surface is brushed uniformly for not less than 2 times.
In the technical scheme, the invention provides the following technical effects and advantages:
1. the brightening agent is added into the raw materials, so that a perfect surface effect can be obtained, the brightness is high, no pores exist on the plate surface, additional repair is not needed, the glossiness of the surface of the component is improved, the process effect is good, various colors can be modulated according to requirements during production by adding the grinding toner into the raw materials, the color selection is diversified, the spraying of different toners in actual requirements is met, the mechanical property of the component is enhanced by adding the silicon dioxide into the raw materials, the pores can be automatically repaired, and the produced component has high strength and high toughness;
2. by paving the silica gel bottom die on the die table surface, different textures can be displayed according to the modeling of the bottom die while the surface flatness of the component is kept, so that the surface of the component is enriched, and different models and patterns can be sprayed according to the manufacturing of the silica gel bottom die;
3. through repairing, veneer integration shaping, saved the veneer spraying and artifical polishing, repair, the washing in later stage, reduced the construction degree of difficulty by a wide margin, reduce artifical the use, need not polish complicated steps such as washing spray paint, and brush silane emulsion after the drawing of patterns, can effectively restrain the surface efflorescence and increase waterproof efficiency, guarantee the quality of component.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
the formula of the glass fiber reinforced precast concrete member comprises the following raw materials in parts by weight:
40 parts of cement;
40 parts of quartz sand;
2 parts of titanium dioxide;
2 parts of alkali-resistant glass fiber yarns;
1 part of polymer emulsion;
1 part of silane emulsion;
0.2 part of a water reducing agent;
0.2 part of defoaming agent;
0.25 part of brightener;
0.3 part of silicon dioxide;
0.05 part of superfine toner;
and 13 parts of water.
Further, in the above technical solution, the cement is white 52.5 ordinary portland cement, the quartz sand is 30 mesh, and the length of the alkali-resistant glass fiber is 1.5 cm.
Further, in the above technical solution, the titanium dioxide is set as titanium dioxide, the polymer emulsion is set as acrylic emulsion, and the ultrafine toner is set as 300 mesh iron oxide toner.
Further, in the above-described aspect, the water reducing agent is a sulfonated melamine formaldehyde condensate (melamine system), an aminosulfonate system, an aliphatic system, a polycarboxylate system, or a naphthalenesulfonate formaldehyde condensate (naphthalene system).
Further, in the above technical scheme, the defoaming agent is silicone emulsion, a high alcohol fatty acid ester complex, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene amine ether, polyoxypropylene glycerol ether, polyoxypropylene polyoxyethylene glycerol ether or polydimethylsiloxane, the 7 defoaming agents are all composed of active ingredients, an emulsifier, a carrier and an emulsification aid, wherein the active ingredients have the functions of breaking foam, defoaming and reducing surface tension, the emulsifier has the function of dispersing the active ingredients to make the active ingredients more soluble in water, so that better defoaming and foam inhibiting effects are achieved, the carrier is helpful for combining the carrier and a foaming system, so that the carrier is easily dispersed in the foaming system, so that foam inhibition is facilitated, the cost is reduced, the emulsification aid can enhance the emulsification effect, the proportion is 0.2 parts by weight, any one of the 7 defoaming agents is selected firstly and diluted by dissolving the defoaming agent in water, stirring and constructing together in the adding step (B).
Furthermore, in the technical scheme, the brightening agent is composed of benzalacetone, nonylphenol polyoxyethylene ether, sodium benzoate, a diffusant NNO and water, and the brightening agent has the effects of increasing the glossiness of the surface, improving the surface finish of the product and removing substances such as oxides, scum and the like on the surface.
Further, in the above technical solution, the silica is configured as nano-scale spherical silica powder, and the silica is Na2SiO3·9H2O as raw material, concentrated H2SO4The acid reagent is prepared by a chemical precipitation method, so that holes in the manufacturing process of the prefabricated part are repaired, the mechanical property is enhanced, and the strength and the toughness of the prefabricated part are improved.
A production process of a glass fiber reinforced precast concrete member comprises the following specific preparation steps:
(A) and (3) experimental preparation: firstly, a layer of silica gel basement membrane is paved on a mould platform, a prefabricated part mould is placed on the basement membrane, and a water-based release agent is coated on the silica gel basement membrane, so that no gap can be formed between the paved silica gel basement membrane and the mould platform, and the surface of the silica gel basement membrane is ensured to have no dust and sundries.
(B) And stirring the cement slurry: according to parts by weight, 13 parts of water, 1 part of polymer emulsion, 0.2 part of water reducing agent, 0.2 part of defoaming agent, 0.25 part of brightener, 0.3 part of silicon dioxide, 40 parts of quartz sand, 40 parts of cement, 2 parts of titanium dioxide and 0.05 part of toner are sequentially added into a stirring barrel, and the mixture is put into a high-shear stirring machine to be stirred for 5min at the temperature of 25 ℃ to obtain cement slurry with good fluidity;
(C) and spraying cement slurry: pouring the stirred cement slurry into a spraying machine, spraying the cement slurry into a mould by using the spraying machine, wherein a spray gun is arranged in a downward direction to form an included angle of 45 degrees with the spraying surface, the spraying speed is 4mm for each layer, and the spraying paths are uniformly criss-cross, namely after one time of spraying in the horizontal direction, the spraying paths are sprayed in the vertical direction again, so that the sprayed mortar is more uniform and smoother;
(D) and spraying fibers: when the height of the sizing agent on the surface of the mold is sprayed to 1.0cm, replacing a fiber spray gun to spray fibers until the fibers on the surface of the sizing agent are uniformly distributed, compacting by using a roller when each layer is sprayed to remove bubbles and improve the bonding degree of the fibers and the sizing agent, and finishing when the height of the sizing agent continuously sprayed after compaction is 3 cm;
(E) and (3) processing: after the slurry surface is initially set, roughening treatment is carried out, reinforced concrete is poured to the level height of a mold, and then a heat insulation plate and a connecting piece are placed, wherein the heat insulation plate is a novel heat insulation and decoration integrated plate which integrates the functions of heat insulation, water resistance, facing and the like, is a preferred material which meets the energy-saving requirement of the current house building and improves the heat insulation level of the outer wall of the industrial and civil buildings, is a preferred material for energy-saving reconstruction of the existing building, has excellent heat insulation performance, and is subjected to light-collecting treatment and natural maintenance after a layer of reinforced concrete is poured;
(F) and demolding: when in demoulding, firstly removing the fixing screw and the fixing bolt, then removing the water and electricity connector, then removing the fixing sleeve, finally removing the mould, performing corner treatment, and removing burrs of the corner;
(G) and hoisting, namely placing the prefabricated part in an open place, and brushing a silane emulsion on the sprayed surface, wherein the silane emulsion has very low-concentration cyclic organic siloxane oligomer and high stability, and can effectively inhibit whiskering and the like.
Further, in the above technical scheme, in the step (E), after the concrete is poured, the feeding height is 40cm, the concrete is uniformly and continuously poured, so that the surface of the slurry is prevented from being strongly impacted during the feeding, the vibrating depth is noticed during the vibrating of the tamper, and the natural curing time is 24 hours.
Further, in the above technical solution, in the step (G), the coating of the silane emulsion is performed in a ratio of 1: 5 adding water, and uniformly brushing the surface for 3 times.
In conclusion, the formula and the production process of the glass fiber reinforced precast concrete prefabricated part of the invention have the advantages that the brightener is added into the raw materials, the glossiness of the surface of the part is improved, the part can be modulated into various colors and diversified colors according to requirements by adding the grinding toner, the mechanical property of the part is enhanced by adding the silicon dioxide, holes can be automatically repaired, the bottom film is padded on the surface of the die table, different textures can be displayed according to the modeling of the bottom film while the surface smoothness of the part is maintained, the surface of the part is enriched, the silane emulsion is brushed after the die is removed, the surface efflorescence can be effectively inhibited, the waterproof effect is increased, the quality of the part is ensured, and the prefabricated part with clean and smooth surface, high brightness and no pores on the surface is obtained, and has the advantages of high strength, good toughness, diversified colors, good waterproof effect and one-step molding, complex steps such as polishing, cleaning and paint spraying are not needed, labor force is reduced, and the method has a good application prospect.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The formula of the glass fiber reinforced precast concrete member is characterized in that: the raw materials used in the method comprise the following components in parts by weight:
30-50 parts of cement;
40-60 parts of quartz sand;
1-3 parts of titanium dioxide;
2-3 parts of alkali-resistant glass fiber yarns;
0.5-1 part of polymer emulsion;
1-3 parts of silane emulsion;
0.1-0.5 part of water reducing agent;
0.2-0.5 part of defoaming agent;
0.10-0.25 part of brightener;
0.2-0.3 part of silicon dioxide;
0.04-0.06 part of superfine toner;
7-15 parts of water.
2. The formulation of claim 1, wherein: the cement is white 52.5 ordinary portland cement, the quartz sand is 20-40 meshes, and the length of the alkali-resistant glass fiber is 1.5-4.5 cm.
3. The formulation of claim 1, wherein: the titanium dioxide is set as titanium dioxide, the polymer emulsion is set as acrylic emulsion, and the superfine toner is set as 280-310 mesh ferric oxide toner.
4. The formulation of claim 1, wherein: the water reducing agent is a sulfonated melamine formaldehyde condensate (melamine system), an aminosulfonate system, an aliphatic system, a polycarboxylate system or a naphthalenesulfonate formaldehyde condensate (naphthalene system).
5. The formulation of claim 1, wherein: the defoaming agent is emulsified silicone oil, a high-alcohol fatty acid ester compound, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene amine ether, polyoxypropylene glycerol ether, polyoxypropylene polyoxyethylene glycerol ether or polydimethylsiloxane.
6. The formulation of claim 1, wherein: the brightener is composed of benzalacetone, nonylphenol polyoxyethylene ether, sodium benzoate, a diffusant NNO and water.
7. The formulation of claim 1, wherein: the silicon dioxide is arranged into nano-scale spherical silicon dioxide powder, and the silicon dioxide is Na2SiO3·9H2O as raw material, concentrated H2SO4The acid reagent is prepared by a chemical precipitation method.
8. The process for producing a glass fiber reinforced precast concrete member formulation according to any one of claims 1 to 7, wherein: the preparation method comprises the following specific steps:
(A) and (3) experimental preparation: firstly, paving a layer of silica gel basement membrane on a mould platform, placing a prefabricated part mould on the basement membrane, and coating a water-based release agent;
(B) and stirring the cement slurry: according to parts by weight, 13 parts of water, 1 part of polymer emulsion, 0.2 part of water reducing agent, 0.2 part of defoaming agent, 0.25 part of brightener, 0.3 part of silicon dioxide, 40 parts of quartz sand, 40 parts of cement, 2 parts of titanium dioxide and 0.05 part of toner are sequentially added into a stirring barrel, and the mixture is put into a high-shear stirring machine to be stirred for 5 to 10 minutes at the temperature of between 20 and 25 ℃ to obtain cement slurry with good fluidity;
(C) and spraying cement slurry: pouring the stirred cement slurry into a spraying machine, spraying the cement slurry into a mold by using the spraying machine, wherein the spraying direction is that a spray gun downwards forms an included angle of 40-45 degrees with the spraying surface, the spraying speed is 3-4mm for each layer, and the spraying paths are uniformly criss-cross, namely after spraying once along the horizontal direction, spraying once again along the vertical direction.
(D) And spraying fibers: when the height of the sizing agent on the surface of the mould is sprayed to 0.5-1.0cm, replacing a fiber spray gun to spray fibers until the fibers on the surface of the sizing agent are uniformly distributed, compacting by using a roller to remove air bubbles and improve the bonding degree of the fibers and the sizing agent when each layer is sprayed, and continuously spraying the sizing agent when the height of the sizing agent is 2.5-3.3 cm after compacting treatment;
(E) and (3) processing: roughening the slurry surface after initial setting, pouring reinforced concrete to the horizontal height of the mold, placing the heat insulation plate and the connecting piece, pouring a layer of reinforced concrete, performing light-collecting treatment on the surface of the member, and naturally curing;
(F) and demolding: when in demoulding, firstly removing the fixing screw and the fixing bolt, then removing the water and electricity connector, then removing the fixing sleeve, finally removing the mould, performing corner treatment, and removing burrs of the corner;
(G) and hoisting, placing the prefabricated part in an open place, and brushing the silane emulsion on the sprayed surface.
9. The process for producing a glass fiber reinforced precast concrete member formulation according to claim 8, wherein: in the step (E), after concrete is poured, the feeding height is 40cm-50cm, the concrete is uniformly and continuously poured, strong impact on the surface of the slurry is avoided during discharging, the vibrating depth is noticed during vibrating of a tamper, and the natural curing time is 20h-30 h.
10. The process for producing a glass fiber reinforced precast concrete member formulation according to claim 8, wherein: in the step (G), the silane emulsion is coated by water in a ratio of 1-3:10-15, and the surface is uniformly coated by the coating for not less than 2 times.
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| CN115504734A (en) * | 2022-09-01 | 2022-12-23 | 安徽汇辽新型装饰材料有限公司 | Manufacturing method of imitated white marble high-finish fiber reinforced concrete slab |
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