CN105669141A - GRC (glass fiber reinforced cement) product - Google Patents
GRC (glass fiber reinforced cement) product Download PDFInfo
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- CN105669141A CN105669141A CN201610127050.5A CN201610127050A CN105669141A CN 105669141 A CN105669141 A CN 105669141A CN 201610127050 A CN201610127050 A CN 201610127050A CN 105669141 A CN105669141 A CN 105669141A
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- grc
- grc goods
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- cement
- metakaolin
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- 239000004568 cement Substances 0.000 title claims abstract description 36
- 239000003365 glass fiber Substances 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 32
- 239000002994 raw material Substances 0.000 claims abstract description 32
- LFQCEHFDDXELDD-UHFFFAOYSA-N tetramethyl orthosilicate Chemical compound CO[Si](OC)(OC)OC LFQCEHFDDXELDD-UHFFFAOYSA-N 0.000 claims abstract description 23
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 21
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000006004 Quartz sand Substances 0.000 claims abstract description 10
- 239000005060 rubber Substances 0.000 claims abstract description 10
- 239000003086 colorant Substances 0.000 claims description 5
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract description 7
- 239000003623 enhancer Substances 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000002195 synergetic effect Effects 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
- 239000011211 glass fiber reinforced concrete Substances 0.000 description 96
- 230000000052 comparative effect Effects 0.000 description 19
- 239000007921 spray Substances 0.000 description 18
- 239000000463 material Substances 0.000 description 16
- 239000010410 layer Substances 0.000 description 13
- 239000011083 cement mortar Substances 0.000 description 12
- 238000012360 testing method Methods 0.000 description 10
- 229920002472 Starch Polymers 0.000 description 8
- 239000012790 adhesive layer Substances 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 8
- 235000019698 starch Nutrition 0.000 description 8
- 239000008107 starch Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 239000004567 concrete Substances 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000002585 base Substances 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 238000012958 reprocessing Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 101100002917 Caenorhabditis elegans ash-2 gene Proteins 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 241000521257 Hydrops Species 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 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
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000011383 glass concrete Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- AIPVRBGBHQDAPX-UHFFFAOYSA-N hydroxy(methyl)silane Chemical class C[SiH2]O AIPVRBGBHQDAPX-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920005646 polycarboxylate Polymers 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910052604 silicate mineral Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000005335 volcanic glass Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/50—Flexible or elastic materials
- C04B2111/506—Bendable material
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic 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 GRC (glass fiber reinforced cement) product which is prepared from cement, glass fibers, quartz sand, water, rubber paste, a water reducing agent, metakaolin, volcanic ash and methyl silicate. The combination of the water reducing agent, metakaolin, volcanic ash and methyl silicate is used as an enhancer and used as a raw material of the GRC product. The combination of the water reducing agent, metakaolin, volcanic ash and methyl silicate is mixed with the cement, glass fibers and water, so that the water reducing agent, metakaolin, volcanic ash and methyl silicate can generate mutual synergistic actions; and thus, the GRC product has excellent bending resistance and tensile resistance, and the service life of the GRC product is maximally prolonged. When being used in a building, the GRC product has the same service life as the building. Besides, the raw materials used in the GRC product are from reprocessed natural or waste products, and thus, are green and environment-friendly.
Description
Technical field
The invention belongs to building material field, be specifically related to a kind of GRC goods.
Background technology
GRC (GlassFiberReinforcedConcrete) has another name called GFRC, Chinese is glass fiber reinforced cement or glass concrete, it is a kind of using glass fibre as reinforcing material, a kind of composite of material mixing based on cement mortar, the problem that existing GRC product exists tension, bending resistance, impact strength deficiency.
Summary of the invention
It is an object of the invention to provide a kind of GRC goods, there is extraordinary tension, bending resistance and impact strength.
For reaching this purpose, the present invention by the following technical solutions:
Thering is provided a kind of GRC goods, its raw material includes: cement, glass fibre, quartz sand, water and rubber cement, water reducer, metakaolin, volcanic ash and methyl silicate.
Wherein, glass fibre (GlassFiber) is the Inorganic Non-metallic Materials of a kind of excellent performance, as the inner skeleton of GRC goods, of a great variety, its thermostability is strong, corrosion resistance good, and mechanical strength is high, adds glass fibre and can improve the hot strength of GRC goods in GRC goods; Quartz sand is to crush, through quartz, the quartz particles processed, and it is mainly composed of silicon dioxide, is the silicate mineral of a kind of hard, wear-resisting, stable chemical performance, can improve the internal intensity of GRC goods; Rubber cement is purchased from west card, for Switzerland's imported material; Water reducer is a kind of when maintenance slump is constant, the concrete admixture of mixing water amount can be reduced, adopt water reducer as the raw material of GRC goods, Water-reducing Admixtures To Cements granule has peptizaiton, unit consumption of water can be reduced, improve the mobility of concrete mix, or reduce unit cement consumption, save cement; Metakaolin in the present invention is purchased from west card, for imported material, has another name called star powder, it is possible to improve the intensity of GRC goods, life-span and service behaviour, is effectively improved the intensity of GRC goods, alleviates the aging of GRC goods and degraded; Volcanic ash is made up of rock, mineral and volcanic glass fragment, in acidity, diameter, less than 2mm, joins in GRC goods, GRC viscosity and suppleness can be increased, increasing the muscle degree before GRC solidification and the intensity after solidification, its acid speciality can eliminate the accumulation of salt in the surface soil phenomenon of cement, and volcanic ash has natural weathering resistance effect, GRC goods can be made to have strong weatherability, moreover it is possible to reduce GRC goods bleeding, improve the dense surface degree of GRC goods and the ability of resisting erosion of sulfate; Methyl silicate in the present invention is space network, is a kind of heavy sand superfines from benthos, has another name called deep-sea and shrinks powder, methyl silicate and the bubble (CO of generation in cement hydration process2Deng gas) and water reaction, form methyl silanol class material, become netted organosilicon, therefore methyl silicate is as the raw material of GRC goods, the bubble and unnecessary moisture that produce in cement hydration process can be eliminated, improve moistureproof, impermeable, waterproof and stain resistance, also improve the life-span of GRC goods.
Water reducer, metakaolin, volcanic ash and methyl silicate are combined as enhancer the raw material being used as GRC goods by the present invention, mix with cement, glass fibre, quartz sand, water and rubber cement, water reducer, metakaolin, volcanic ash and methyl silicate can produce synergism each other, GRC goods are made to have extraordinary toughness, bending resistance and resistance to tension, extend the service life of GRC goods to greatest extent, GRC goods are in building, it is possible to make GRC goods and building itself of the same age. Additionally, material used in the present invention is all from natural or Litter reprocessing, there is the good feature of environmental protection.
As the preferred version of the present invention, by weight, the raw material of GRC goods includes:
Cement 50 parts;
Glass fibre 4.5～6 parts, for instance 4.6 parts, 4.7 parts, 4.8 parts, 4.9 parts, 5 parts, 5.1 parts, 5.2 parts, 5.5 parts, 5.8 parts, 6 parts;
Quartz sand 50 parts;
17 parts of water;
Rubber cement 2.8～6 parts, for instance 2.9 parts, 3 parts, 3.1 parts, 3.2 parts, 3.5 parts, 3.8 parts, 4 parts, 4.2 parts, 4.5 parts, 4.8 parts, 5 parts or 5.5 parts;
Water reducer 1.5～2.5 parts, for instance 1.6 parts, 1.7 parts, 1.8 parts, 1.9 parts, 2 parts, 2.1 parts, 2.2 parts, 2.3 parts or 2.4 parts;
Metakaolin 1.5～2.5 parts, for instance 1.6 parts, 1.7 parts, 1.8 parts, 1.9 parts, 2 parts, 2.1 parts, 2.2 parts, 2.3 parts or 2.4 parts;
Volcanic ash 1.5～2.5 parts, for instance 1.6 parts, 1.7 parts, 1.8 parts, 1.9 parts, 2 parts, 2.1 parts, 2.2 parts, 2.3 parts or 2.4 parts;
Methyl silicate 0.7～1.3 part, for instance 0.75 part, 0.8 part, 0.85 part, 0.9 part, 0.95 part, 1 part, 1.1 parts or 1.2 parts.
The proportioning of each raw material of GRC goods, by test repeatedly and performance test, is carried out suitable optimization, to obtain the GRC goods of excellent performance by the present invention.
As the further preferred version of the present invention, by weight, the raw material of GRC goods includes:
Cement 50 parts, glass fibre 6 parts, quartz sand 50 parts, 17 parts of water, rubber cement 4 parts, water reducer 2 parts, metakaolin 2 parts, volcanic ash 2 parts, methyl silicate 1 part.
The present invention is by optimizing further the proportioning of each raw material of GRC goods, so that the combination properties such as the tensile strength of GRC goods, bending strength and service life are optimum.
Preferably, the mass percent of the zirconium dioxide in described glass fibre, be more than or equal to 16.5%, can making glass fibre have high alkali resistance, reducing the weightlessness of glass fibre, thus improving the intensity of cement. The glass fibre of the present invention is preferably Hui Erjie fiber (zirconium dioxide content is be more than or equal to 16.5%).
Wherein, described water reducer is poly carboxylic acid series water reducer, poly carboxylic acid series water reducer is continue the ordinary water-reducing agent that wood calcium is representative and the third generation high-performance water reducing agent with naphthalene system for growing up after the high efficiency water reducing agent of representative, its good dispersion, water-reducing rate is high, the compatibility with cement is good, and environmental protection. The polycarboxylate high performance water-reducing agent SUNBOPC-106 of the poly carboxylic acid series water reducer of the present invention preferably west card.
Preferably, described cement is intensity is the white cement of 52.5, is a kind of early epistasis, cold environmental type product, and its bright in color, whiteness are high, add the strength and stability that can be effectively improved GRC goods in GRC goods. Cement in the present invention is preferably Portland A Erbo 52.5R white cement, and wherein R represents the intensity of cement.
Wherein, containing active silica and activated alumina in described volcanic ash, the basic component generation pozzolanic reactions such as other raw materials such as calcium hydroxide in active silica and activated alumina and GRC goods, generate the product such as hydrated calcium silicate, drated calcium aluminate or hydrated calcium aluminate sulfate, thus eliminating the accumulation of salt in the surface soil phenomenon of GRC goods.
Preferably, also including colorant in the raw material of GRC goods, colorant includes various mill bases, the kind of mill base and the consumption such as blueness, red mill base to be determined according to concrete color, it is possible to be single mill base, it is also possible to be that branched color paste deployment forms.
The preparation method of the GRC goods of the present invention is as follows:
(1), mould arranges:
(1), by die assembly, whether dress watch size conforms with accuracy standard, checks whether boxing tool deforms;
(2), smear mould oil at the contact surface of mould Yu GRC goods, make mould oil smear uniformly;
Wherein, mould institute tolerance: the length of side ± 1mm, diagonal line length difference ± 3mm.
(2), GRC spray:
(1), slurrying: weigh each raw material by above-mentioned weight proportion, it is initially charged water, add colorant, start blender and be stirring evenly and then adding into cement, quartz sand is added after stirring two minutes, it is subsequently adding rubber cement, water reducer, metakaolin, volcanic ash and methyl silicate, stirs, prepare cement mortar;
Utilize pneumatics (5～7Kg/cm2) glass fibre is shredded inside the spray gun of concentric co-axial, and automatically mix with described cement mortar, prepare glass fiber cement mortar;
(2), making sheet: by air pressure, cement mortar is ejected to mould from spray gun, prepares the thick starch adhesive layer of 3mm, the spray at twice of starch adhesive layer: first time spray 1～1.5mm, spray about 1.5mm again after 5～10min; Adopting cylinder rolling compacting, to be evicted from by bubble, increase density, spray regime carries out alternately with horizontal, longitudinal; When starch adhesive layer starts initial set, (touch and will not glue hands) spray starting to carry on the back the bed of material gently with finger, the back of the body bed of material is that glass fiber cement mortar injection forms (spray regime is identical with starch adhesive layer), the number of plies of its thickness and injection is determined according to the thickness of regulation, and every layer of jet thickness is about 3～4mm;
(3), the demoulding and maintenance:
During the demoulding, GRC plate (GRC goods) needs uniform fulcrum, immediately enters maintenance district and carry out maintenance after the demoulding, and curing period is 28 days;
(4), surface treatment and repairing:
The easy impaired peeling of GRC component during the demoulding, or the diameter bubble more than 2mm and honeycomb etc. are produced in some position, above-mentioned cement mortar should be adopted to repair;
(5), store and carry:
The storing mode of GRC goods is generally and keeps flat, because providing suitable support to prevent it from toppling over when standing up;
Storage location should be smooth, must not hydrops, should there be enough holding capacity on ground, and memory device must not have any uneven depression;
During carrying, the surface of GRC goods can not clashing and breaking or have any pollution, and avoid bearing extra pressure.
Above-mentioned GRC goods also need to carry out quality control, and test sample must be tested according to the test specification of CNS, BSI or ASTM with 28 days material age.
Beneficial effects of the present invention: water reducer, metakaolin, volcanic ash and methyl silicate are combined as enhancer the raw material being used as GRC goods by the present invention, and mix with cement, glass fibre, quartz sand, water and rubber cement, water reducer, metakaolin, volcanic ash and methyl silicate can produce synergism each other, GRC goods are made to have extraordinary toughness, bending resistance and resistance to tension, extend the service life of GRC goods to greatest extent, GRC goods are in building, it is possible to make GRC goods and building itself of the same age. Additionally, raw material used in the present invention is all from natural or Litter reprocessing, there is the good feature of environmental protection.
Detailed description of the invention
Technical scheme is further illustrated below by detailed description of the invention.
As no specific instructions, the various raw materials of the present invention are all commercially available to be buied, or the conventional method according to this area prepares.
Embodiment 1
Weigh each raw material by the weight shown in table 1, be initially charged water, add colorant, start blender and be stirring evenly and then adding into cement, add quartz sand after stirring two minutes, be subsequently adding rubber cement, water reducer, metakaolin, volcanic ash and methyl silicate, stir, prepare cement mortar; Utilize pneumatics (6Kg/cm2) glass fibre is shredded inside the spray gun of concentric co-axial, and automatically mix with cement mortar, preparing glass fiber weight percentage ratio is the glass fiber cement mortar of 5%;
By air pressure, cement mortar is ejected to mould from spray gun, prepares the thick starch adhesive layer of 3mm, the spray at twice of starch adhesive layer: first time spray 1～1.5mm, spray about 1.5mm again after 5～10min; Adopting cylinder rolling compacting, to be evicted from by bubble, increase density, spray regime carries out alternately with horizontal, longitudinal; After about 4～5min, when starch adhesive layer starts initial set, (touch and will not glue hands) spray starting to carry on the back the bed of material gently with finger, the back of the body bed of material is that glass fiber cement mortar injection forms (spray regime is identical with starch adhesive layer), sprays two-layer, and every layer of jet thickness is about 3mm;
The demoulding, maintenance, prepare the GRC goods of thick 9mm.
Embodiment 2
In the preparation method of the GRC goods of the present embodiment, the back of the body bed of material is three layers, every layer of 3mm, and remainder is all consistent with embodiment 1, prepares the GRC goods of thick 12mm.
Embodiment 3
In the preparation method of the GRC goods of the present embodiment, the back of the body bed of material is nine layers, every layer of 3mm, and remainder is all consistent with embodiment 1, prepares the GRC goods of thick 30mm.
Embodiment 4
In the preparation method of the GRC goods of the present embodiment, each raw material of GRC goods is referring to table 1, and remainder is all consistent with embodiment 1.
Embodiment 5
In the preparation method of the GRC goods of the present embodiment, each raw material of GRC goods is referring to table 1, and remainder is all consistent with embodiment 1.
Comparative example 1
In the preparation method of the GRC goods of the present embodiment, each raw material of GRC goods is referring to table 1, and the back of the body bed of material is two-layer, every layer of 3mm, and other are all identical with embodiment 1, prepares the GRC goods of thick 9mm.
Comparative example 2
In the preparation method of the GRC goods of the present embodiment, the back of the body bed of material is three layers, every layer of 3mm, and remainder is all consistent with comparative example 1, prepares the GRC goods of thick 12mm.
Comparative example 3
In the preparation method of the GRC goods of the present embodiment, the back of the body bed of material is nine layers, every layer of 3mm, and remainder is all consistent with comparative example 1, prepares the GRC goods of thick 30mm.
Comparative example 4
The present embodiment differs only in embodiment 1: preparing and be not added with metakaolin, volcanic ash, methyl silicate in the raw material of GRC goods, remainder is all consistent with embodiment 2.
Comparative example 5
The present embodiment differs only in embodiment 1: preparing and be not added with water reducer, volcanic ash, methyl silicate in the raw material of GRC goods, remainder is all consistent with embodiment 2.
Comparative example 6
The present embodiment differs only in embodiment 1: preparing and be not added with water reducer, metakaolin, methyl silicate in the raw material of GRC goods, remainder is all consistent with embodiment 2.
Comparative example 7
The present embodiment differs only in embodiment 1: preparing and be not added with water reducer, metakaolin, volcanic ash in the raw material of GRC goods, remainder is all consistent with embodiment 2.
Table 1
By corresponding test basis the GRC goods of embodiment 1～3 and comparative example 1～7 are detected (each sample takes 10 pieces respectively and detects, testing result is averaged), wherein, the concrete testing result of embodiment 1～3 and comparative example 1～3 is referring to table 2, and the testing result of comparative example 4～7 is referring to table 3.
Table 2
Table 3
Found by the testing result of the embodiment 1～3 in contrast table 2 with comparative example 1～3:
(1), for the GRC goods of 9mm thickness, contract with dry rate and the wet rate of rising of the GRC goods thick for 9mm that embodiment 1 prepares are below the thick GRC goods of the 9mm obtained by comparative example 1, illustrate that the GRC goods thick for the 9mm obtained by raw material adopting the present invention are not by the impact of ambient humidity change, have extraordinary intensity simultaneously;
(2), for the GRC goods of 12mm thickness, the bulk density of the GRC goods of embodiment 2 is more than the bulk density of the GRC goods of comparative example 2, water absorption rate is far below the bulk density of the GRC goods of comparative example 2, and in frost resistance is tested, there is the phenomenons such as a degree of aliquation and peeling in the GRC goods of comparative example 2, and the performance of the GRC goods of embodiment 2 is good after 25 freeze-thaw cycle; Additionally, the bending strength of GRC goods of embodiment 2, tensile strength and impact strength are superior to the GRC goods of comparative example 2; This illustrates to adopt the GRC goods thick for the 12mm obtained by raw material of the present invention to have high solidity, high intensity, indeformable, do not ftracture, stable performance;
(3), for GRC goods thick for 30mm, the comprcssive strength of the GRC goods of embodiment 3 is 62MPa, far above the GRC goods of comparative example 3.
Additionally, as known from Table 3, the present invention has lifting by adding any one raw material in water reducer, metakaolin, volcanic ash, methyl silicate relative to the GRC goods of prior art in performance, when after the compositions adding water reducer, metakaolin, volcanic ash, methyl silicate simultaneously, due to the synergism produced between each material so that GRC goods promote further in performance.
Embodiment 4 is similar with the test result of the GRC goods of embodiment 1 with the test result of the GRC goods of embodiment 5, does not repeat them here.
In sum, water reducer in the GRC goods of the present invention, metakaolin, volcanic ash and methyl silicate can produce synergism each other, make GRC goods by the impact of ambient humidity change, have high density and high intensity, indeformable, do not ftracture, stable performance.
Above example is only used for illustrating to the invention is not limited in the method detailed of the present invention above-mentioned method detailed, namely do not mean that the present invention has to rely on above-mentioned method detailed and could implement. The equivalence of each raw material of product of the present invention, it will be clearly understood that any improvement in the present invention, is replaced and the interpolation of auxiliary element, concrete way choice etc. by person of ordinary skill in the field, all falls within protection scope of the present invention and open scope.
Claims (8)
1. GRC goods, it is characterised in that its raw material includes: cement, glass fibre, quartz sand, water and rubber cement, water reducer, metakaolin, volcanic ash and methyl silicate.
2. GRC goods according to claim 1, it is characterised in that by weight, its raw material includes:
3. GRC goods according to claim 1, it is characterised in that by weight, its raw material includes:
4. GRC goods according to claim 1, it is characterised in that the percentage by weight of the zirconium dioxide in described glass fibre is be more than or equal to 16.5%.
5. GRC goods according to claim 1, it is characterised in that described water reducer is poly carboxylic acid series water reducer.
6. GRC goods according to claim 1, it is characterised in that described cement is the silicate white cement of intensity 52.5.
7. GRC goods according to claim 1, it is characterised in that containing active silica and activated alumina in described volcanic ash.
8. the GRC goods according to any one of claim 1 to 7, it is characterised in that also include colorant in the raw material of GRC goods.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113192032A (en) * | 2021-04-29 | 2021-07-30 | 东南大学 | Prediction and evaluation method for whiskering uniformity of glass fiber reinforced cement product based on microbial whiskering resistance |
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