CN102701651A - Close packing high-performance cement-based fiber composite product and production method thereof - Google Patents

Close packing high-performance cement-based fiber composite product and production method thereof Download PDF

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Publication number
CN102701651A
CN102701651A CN2012101818827A CN201210181882A CN102701651A CN 102701651 A CN102701651 A CN 102701651A CN 2012101818827 A CN2012101818827 A CN 2012101818827A CN 201210181882 A CN201210181882 A CN 201210181882A CN 102701651 A CN102701651 A CN 102701651A
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China
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fiber
cement
tightly packed
performance cement
performance
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CN2012101818827A
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Chinese (zh)
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熊吉如
王杰
许升
陶婷婷
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南京倍立达实业有限公司
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Priority to CN2012101818827A priority Critical patent/CN102701651A/en
Publication of CN102701651A publication Critical patent/CN102701651A/en

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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Abstract

The invention discloses a close packing high-performance cement-based fiber composite product and a production method thereof, and particularly discloses a novel fiber-reinforced cement-based composite material product which is prepared by combining a close packing design high-performance cement technology with a hybrid fiber reinforcing technology and has the advantages of excellent constructability, ultrahigh strength, low deformation, high durability and the like. The close packing high-performance cement-based fiber composite product comprises a fiber-reinforced cement-based flexible anti-cracking surface layer and a fiber-reinforced close packing high-performance cement-based structural layer, wherein the fiber-reinforced close packing high performance cement-based structural layer is compounded on the fiber-reinforced cement-based flexible anti-cracking surface layer; 0-3 layers of netlike reinforced materials are paved in the fiber-reinforced close packing high-performance cement-based structural layer; and the fiber-reinforced cement-based flexible anti-cracking surface layer and the fiber-reinforced close packing high-performance cement-based structural layer are compounded in a mold with a decorative effect. The close packing high-performance cement-based fiber composite product is suitable for construction such as building outer wall decoration, indoor engineering construction, road construction, bridge construction and the like.

Description

A kind of tightly packed high-performance cement-based fiber composite article and working method thereof
Technical field
What the present invention relates to is a kind of tightly packed high-performance cement-based fiber composite article and working method thereof.Be that tightly packed design technology of high performance concrete is combined with the assorted fibre enhancement techniques specifically; A kind ofly have fabulous application property but prepare, and have both the tencel refinforced cement base composite-material product of advantages such as superstrength, low distortion, high-durability.The product application scope comprises the construction of decorating outer wall of building, indoor engineering, and the road that cement matrix intensity and weather resistance are had higher requirements, constructions such as bridge.
Background technology
High performance concrete (high performance concrete is abbreviated as HPC) is a kind of novel High Technique Concrete, is the concrete that on the basis that increases substantially the normal concrete performance, adopts the modern concrete fabrication techniques.It to different purposes requirements, guarantees following performance focus: weather resistance, workability, suitability, intensity, volume stability and economy with the leading indicator of weather resistance as design.But along with the progressively raising that building engineering construction requires, high performance concrete exists still that tensile pressure ratio is low, fragility is high with shrink shortcomings such as big, can not satisfy the construction demand fully.High performance concrete has adopted less water-cement ratio though this is; And mix the bigger active admixture of specific surface area; But after mixing in people's concrete as if the mineral admixture that the complete and homogeneous fineness is not formed grating, can not give full play to its microcosmic filling effect.There are some researches show from the closelypacked theory of powder granule; The mineral substance powder granule of different fineness rationally mixed join; Make the gelling material particle in the submicroscopic scope form closelypacked filling effect; Can effectively reduce the porosity of cement gel body, improve pore structure, concrete performance is had the improvement effect.Present tightly packed design technology of high performance concrete also is in the pre-test stage at home and abroad.
Meanwhile, because concrete self can increase along with the prolongation shrinkage crack in the length of time, the quantity of closed pores sharply increases, and tensile strength occurs and presents downward trend, even this trend also inevitably appears in high performance concrete.Promote another emphasis direction that tensile strength becomes the high performance concrete improvement in performance through the fiber composite gelling material.Traditional technology adopts glass fiber reinforced concrete (GRC) usually, and the Ca (OH) 2 that produces when still being easy to hydrated cementitious owing to the SiO2 in the spun glass reacts, and causes durability of product to be declined to become the problem that can't avoid in the industry.Research simultaneously shows that single fiber instead of glass fiber reinforced concrete all has merits and demerits separately; The assorted fibre enhancement techniques reasonably adopts multiple fiber hybrid to strengthen concrete; Can give full play to the advantage of different fibers,, both bring into play the effect and the function of each single fiber in various structure level and stressed stage; Bring into play the additive effect of multiple fiber composite again, therefore obtain more and more enterprises gradually and pay close attention to and study.Domestic research about concrete reinforced by assorted fiber at present basically also is in the laboratory study stage, and is compounded in domestic still for blank with tightly packed design technology of high performance concrete.
Summary of the invention
The objective of the invention is to above-mentioned weak point; A kind of tightly packed high-performance cement-based fiber composite article and working method thereof are provided; Adopt tightly packed design high performance concrete; Compound assorted fibre enhancement techniques is simultaneously prepared the cement-base composite material of superstrength, ultra weather resistance.
The object of the invention is achieved through following technical scheme: a kind of tightly packed high-performance cement-based fiber composite article comprises fiber reinforced cement based flexible break resistant surface layer and the high-performance cement-based structural sheet of the tightly packed type of fiber reinforcement; On fiber reinforced cement based flexible break resistant surface layer, be compounded with the high-performance cement-based structural sheet of the tightly packed type of fiber reinforcement; In the high-performance cement-based structural sheet of the tightly packed type of fiber reinforcement, be equipped with 0-3 layer mesh reinforcements; Fiber reinforced cement based flexible break resistant surface layer and the high-performance cement-based structural sheet of the tightly packed type of fiber reinforcement are in having the mould of decorative effect, to be composited.
Adopting anti-crack fiber to strengthen decoration mortar in the described fiber reinforced cement based flexible break resistant surface layer processes; Described anti-crack fiber is selected one or more in PVA fiber, PU fiber, PP fiber, nylon fiber, xylon, the paper pulp fiber for use;
The high-performance cement-based structural sheet 2 of the tightly packed type of described fiber reinforcement adopts the compound low elastic modulus fiber refinforced cement of high modulus fibre sill to process; Described high modulus fibre is that Young's modulus is higher than concrete filamentary material, selects in spun glass, steel fiber, thomel and the basalt fibre one or more for use; Described low elastic modulus fiber is that Young's modulus is lower than concrete filamentary material, selects in PVA fiber, PU fiber, PP fiber, nylon fiber, xylon, the paper pulp fiber one or more for use.
Described mesh reinforcements is that alkali resistant glass fibre felt, alkali resistant glass fibre strengthen a kind of in grid cloth, the woven wire.
The high-performance cement-based structural sheet of the tightly packed type of described fiber reinforcement forms the tightly packed requirement of millimeter, micron, nanometer grating through cement, ultrafine quartz powder, nano material.
A kind of tightly packed high-performance cement-based fiber composite article comprises fiber reinforced cement based flexible break resistant surface layer (being designated hereinafter simply as " surface layer "), the high-performance cement-based structural sheet of the tightly packed type of fiber reinforcement (being designated hereinafter simply as " structural sheet "); Structural sheet and surface layer are in having the mould of decorative effect, to be composited.
A kind of working method of tightly packed high-performance cement-based fiber composite article is following:
1) cement, aggregate, pigment, anti-crack fiber, polymkeric substance, admixture, active material, water are mixed according to the following weight per distribution ratio, process the surface layer mortar after stirring,
Wherein the raw material weight per distribution ratio is:
Cement 20-45%,
Aggregate 25-60%,
Anti-crack fiber 0-2%
Pigment 0-5%,
Polymkeric substance 0-2.5%
Admixture 0-2%,
Active material 0-5%
Water 8-20%
Described aggregate is selected one or more in sand, microlith, glass chip, ceramic chip, metal fragment, shell chip, the mica flake for use;
Described anti-crack fiber is selected one or more in PVA fiber, PU fiber, PP fiber, nylon fiber, xylon, the paper pulp fiber for use.
Described pigment is selected pigment powder or liquid pigment for use;
Described polymkeric substance is selected redispersable latex powder for use, is gathered acrylic emulsion, a kind of in the benzene emulsion, organosilicon crylic acid latex.
Described admixture is selected one or more in water reducer, frostproofer, hardening accelerator, thickening material, the retardant for use.
Described active material is selected one or more in metakaolin, flyash, breeze, stone flour, the silicon ash for use.
2) with the surface layer mortar that configures, adopt and spray or brushing or laying vibratory drilling method, in mould, make ornament layer, spontaneous curing 10-60 minute;
3) cement, water, ultrafine quartz powder, active material, high modulus fibre, low elastic modulus fiber, silicone-modified polymkeric substance, admixture, nano material are mixed according to the following weight per distribution ratio; Stir and process the compound material structural sheet of high-performance fiber refinforced cement base slip, wherein the raw material weight per distribution ratio is:
Cement 23-51%
Water 10-18%
Ultrafine quartz powder 25-48%
Active material 4-10%
High modulus fibre 0.4-2%
Low elastic modulus fiber 0-1%
Silicone-modified polymkeric substance 0.5-4%
Admixture 0-2%
Nano material 1-5%
Described admixture can adopt one or more in water reducer, frostproofer, hardening accelerator, thickening material, the retardant.
Described active material can adopt one or more in metakaolin, flyash, breeze, stone flour, the silicon ash.
Ultrafine quartz powder: ultrafine quartz powder is the levigate quartz aggregate of grain diameter less than 30 μ m;
High modulus fibre is selected one or more in spun glass, steel fiber, thomel and the basalt fibre for use;
Low elastic modulus fiber is selected one or more in PVA fiber, PU fiber, PP fiber, nylon fiber, xylon, the paper pulp fiber for use;
Silicone-modified polymkeric substance is selected silicone-modified a kind of in acrylic emulsion, silicone-modified benzene emulsion, the silicone-modified organosilicon crylic acid latex of gathering for use;
Nano material is selected powder nanometer SiO for use 2, powder nanometer Al 2O 3, colloid nano SiO 2, colloid nano Al 2O 3In a kind of, colloid nano SiO 2With colloid nano Al 2O 3Be the superior water-soluble solution of stability, solid content is 25% ~ 40%.
 
4) with the high-performance cement-based structural sheet slip of the tightly packed type of the fiber reinforcement that configures, adopt injection or vibrating casting in the mould of making ornament layer, adopt scraper plate that slurry is wipeed off, it is closely knit to use pressure roller to carry out roll-in then.
5) 0-3 layer mesh reinforcements is routed in the mould, carries out roll-in, make it to be absorbed in the high-performance cement-based structural sheet of the tightly packed type of fiber reinforcement with pressure roller;
Described mesh reinforcements is a kind of in alkali resistant glass fibre felt, alkali resistant glass fibre grid cloth, the woven wire.
6) with the product normal temperature of forming or after vapor cure 4-24 hour, carry out the demoulding;
7) place the curing room maintenance after 1-3 days to the product after the demoulding, be prepared into tightly packed high-performance cement-based fiber composite article.
Described water reducer is selected a kind of in naphthalenesulfonate formaldehyde condensation compound, sulfonated melamine compound condenses, the polycarboxylate water-reducer for use;
Described hardening accelerator is selected a kind of in vitriol, nitrite, the trolamine for use;
Described frostproofer is selected a kind of in calcium chloride, salt of wormwood, the Sodium Nitrite for use.
Described thickening material is selected a kind of in Vltra tears, Natvosol, the SEPIGEL 305 for use.
Described retardant is selected a kind of in wooden calcium, molasses, the Hydrocerol A for use.
Described mould is made up of frame mould and base plate mould.
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Beneficial effect of the present invention:
(1) utilized theory of high packing; The levigate silica sand of selecting particle diameter≤30 μ m for use is as aggregate; Capacity is mixed nano material; Guarantee that the raw material particle size distribution meets " ternary " continuous grading requirement of millimeter level+micron order+nanometer, makes the very-high performance cement-base composite material of system that lower porosity arranged, thereby has realized that goods HS combines with weather resistance;
(2) nano material Al 2O 3Or SiO 2Add cement, can promote the secondary hydration effect to generate the higher low calcium silicon of intensity, promote product strength significantly than C-S-H product.
(3) architectural surface mixes multiple anti-crack fiber, has realized the flexible break resistant surface layer; Added silicone-modified polymkeric substance in the structural sheet and realized that cement granules dispersion suspension property is stable; Reduce cement stone porosity; Adopt high modulus fibre and low elastic modulus fiber to mix simultaneously, improved the high problem of fragility of high-strength concrete cement significantly, guaranteed durability of products.
(4) through the use of efficient additive and active material, significantly reduced the consumption of cement, reduced water-cement ratio, in the intensity that promotes product, reduced the use of high energy consumption starting material cement, have good social benefit.
(5) product plasticity-is high, can adapt to the shape and the decorative pattern of various complicacies, satisfies tDesigners's demand widely.
Description of drawings
Below in conjunction with accompanying drawing the present invention is described further:
Fig. 1 is a kind of structural representation of tightly packed high-performance cement-based fiber composite article.
Embodiment
With reference to accompanying drawing 1, a kind of tightly packed high-performance cement-based fiber composite article comprises fiber reinforced cement based flexible break resistant surface layer 1 and the high-performance cement-based structural sheet 2 of the tightly packed type of fiber reinforcement; On fiber reinforced cement based flexible break resistant surface layer 1, be compounded with the high-performance cement-based structural sheet 2 of the tightly packed type of fiber reinforcement; In the high-performance cement-based structural sheet 2 of the tightly packed type of fiber reinforcement, be equipped with 0-3 layer mesh reinforcements 3; Fiber reinforced cement based flexible break resistant surface layer 1 is in having the mould of decorative effect, to be composited with the high-performance cement-based structural sheet 2 of the tightly packed type of fiber reinforcement.
Adopting anti-crack fiber to strengthen decoration mortar in the described fiber reinforced cement based flexible break resistant surface layer 1 processes; Described anti-crack fiber is selected one or more in PVA fiber, PU fiber, PP fiber, nylon fiber, xylon, the paper pulp fiber for use;
The high-performance cement-based structural sheet 2 of the tightly packed type of described fiber reinforcement adopts the compound low elastic modulus fiber refinforced cement of high modulus fibre sill to process; Described high modulus fibre is that Young's modulus is higher than concrete filamentary material, selects in spun glass, steel fiber, thomel and the basalt fibre one or more for use; Described low elastic modulus fiber is that Young's modulus is lower than concrete filamentary material, selects in PVA fiber, PU fiber, PP fiber, nylon fiber, xylon, the paper pulp fiber one or more for use.
Described mesh reinforcements 3 is that alkali resistant glass fibre felt, alkali resistant glass fibre strengthen a kind of in grid cloth, the woven wire.
The high-performance cement-based structural sheet 2 of the tightly packed type of described fiber reinforcement forms the tightly packed requirement of millimeter, micron, nanometer grating through cement, ultrafine quartz powder, nano material.
A kind of working method of tightly packed high-performance cement-based fiber composite article:
Embodiment 1:
1) according to the weight percent proportioning with cement 20kg (20%); Sand 40 kg (40%); Glass chip 10kg (10%); PVA fiber 1kg (1%); Xylon 1kg (1%); Pigment powder 3kg (3%); Redispersable latex powder 2.5kg (2.5%); Water reducer naphthalenesulfonate formaldehyde condensation compound 0.5kg (0.5%); Hardening accelerator vitriol 0.5kg (0.5%); Frostproofer calcium chloride 0.5kg (0.5%); Flyash 3kg (3%); Breeze 2kg (2%); It is subsequent use to process slurry after stirring with water 16kg (16%).
2), adopt gunite in mould, to make ornament layer, spontaneous curing 10 minutes with the surface layer mortar that configures;
3) according to the weight percent proportioning with cement 23kg (23%); Water 10kg (10%); Ultrafine quartz powder 44kg (44%); Metakaolin 10kg (10%); Spun glass 1kg (1%); Thomel 1kg (1%); PVA fiber 0.5kg (0.5%); Paper pulp fiber 0.5kg (0.5%); The silicone-modified acrylic emulsion 4kg (4%) that gathers; Water reducer naphthalenesulfonate formaldehyde condensation compound 0.5kg (0.5%); Hardening accelerator vitriol 0.3kg (0.3%); Frostproofer calcium chloride 0.2kg (0.2%); Nanometer SiO 2Powder 5kg (5%) stirs and processes the high-performance cement-based structural sheet slip of the tightly packed type of fiber reinforcement;
4) with the high-performance cement-based structural sheet slip of the tightly packed type of the fiber reinforcement that configures, be ejected in the mould of making ornament layer, adopt scraper plate that slurry is wipeed off, it is closely knit to use pressure roller to carry out roll-in then.
5) 1 layer of alkali resistant glass fibre felt is routed in the mould, carries out roll-in, make it to be absorbed in the high-performance cement-based structural sheet of the tightly packed type of fiber reinforcement with pressure roller;
6) maintenance under the product normal temperature of forming was carried out the demoulding after 4 hours;
7) place the curing room maintenance after 1 day to the product after the demoulding, be prepared into tightly packed high-performance cement-based fiber composite article.
Embodiment 2:
1) according to the weight percent proportioning with cement 45kg (45%), microlith 20 kg (20%), ceramic chip 5kg (5%), liquid paint 5kg (5%), gather that to process slurry after acrylic emulsion 2 kg (2%), silicon ash 3kg (3%) and water 20kg (20%) stir subsequent use.
2), adopt spread coating in mould, to make ornament layer, spontaneous curing 20 minutes with the surface layer mortar that configures;
3) according to the weight percent proportioning with cement 51kg (51%), water 15kg (15%), ultrafine quartz powder 25kg (25%), flyash 4kg (4%), steel fiber 0.4kg (0.4%), silicone-modified benzene emulsion 0.5kg (0.5%), water reducer sulfonated melamine compound condenses 0.5kg (0.5%), hardening accelerator nitrite 0.5kg (0.5%), frostproofer salt of wormwood 0.5kg (0.5%), nanometer Al 2O 3Powder 2.6kg (2.6%) stirs and processes the high-performance cement-based structural sheet slip of the tightly packed type of fiber reinforcement;
4) with the high-performance cement-based structural sheet slip of the tightly packed type of the fiber reinforcement that configures, adopt vibrating casting in the mould of making ornament layer, adopt scraper plate that slurry is wipeed off, it is closely knit to use pressure roller to carry out roll-in then.
5) maintenance under the product normal temperature of forming was carried out the demoulding after 8 hours;
6) place the curing room maintenance after 2 days to the product after the demoulding, be prepared into tightly packed high-performance cement-based fiber composite article.
Embodiment 3:
1) it is subsequent use to process slurry after according to the weight percent proportioning cement 23kg (23%), sand 40 kg (40%), metal fragment 20kg (20%), PU fiber 0.5kg (0.5%), paper pulp fiber 0.5kg (0.5%), water reducer sulfonated melamine compound condenses 0.5kg (0.5%), hardening accelerator nitrite 0.3kg (0.3%), frostproofer salt of wormwood 0.2kg (0.2%) and water 15kg (15%) being stirred.
2), adopt the laying vibratory drilling method in mould, to make ornament layer, spontaneous curing 30 minutes with the surface layer mortar that configures;
3) according to the weight percent proportioning be 25% nanometer SiO with cement 42kg (42%), water 13kg (13%), ultrafine quartz powder 33kg (33%), breeze 6kg (6%), basalt fibre 1kg (1%), PU fiber 0.5kg (0.5%), silicone-modified organosilicon crylic acid latex 2.5kg (2.5%), solid content 2Colloid 2kg (2%) stirs and processes the high-performance cement-based structural sheet slip of the tightly packed type of fiber reinforcement;
4) with the high-performance cement-based structural sheet slip of the tightly packed type of the fiber reinforcement that configures, be ejected in the mould of making ornament layer, adopt scraper plate that slurry is wipeed off, it is closely knit to use pressure roller to carry out roll-in then.
5) 2 layers of alkali resistant glass fibre grid cloth are routed in the mould, carry out roll-in, make it to be absorbed in the high-performance cement-based structural sheet of the tightly packed type of fiber reinforcement with pressure roller;
6) maintenance under the product normal temperature of forming was carried out the demoulding after 16 hours;
7) place the curing room maintenance after 3 days to the product after the demoulding, be prepared into tightly packed high-performance cement-based fiber composite article.
Embodiment 4:
1) it is subsequent use to process slurry after according to the weight percent proportioning cement 38kg (38%), microlith 38 kg (38%), shell chip 10kg (10%), PP fiber 0.5kg (0.5%), pigment powder 2.5kg (2.5%), benzene emulsion 1.5kg (1.5%), water reducer poly carboxylic acid 0.3kg (0.3%), hardening accelerator trolamine 0.2kg (0.2%), metakaolin 1kg (1%) and water 8kg (8%) being stirred.
2), adopt gunite in mould, to make ornament layer, spontaneous curing 40 minutes with the surface layer mortar that configures;
3) be 25% nanometer Al according to the weight percent proportioning with cement 24kg (24%), water 12kg (12%), ultrafine quartz powder 48kg (48%), stone flour 7kg (7%), thomel 1kg (1%), basalt fibre 0.5kg (0.5%), PP fiber 0.5kg (0.5%), xylon 0.5kg (0.5%), the silicone-modified acrylic emulsion 3kg (3%), water reducer poly carboxylic acid 0.3kg (0.3%), hardening accelerator trolamine 0.2kg (0.2%), solid content of gathering 2O 3Colloid 3kg (3%) stirs and processes the high-performance cement-based structural sheet slip of the tightly packed type of fiber reinforcement;
4) with the high-performance cement-based structural sheet slip of the tightly packed type of the fiber reinforcement that configures, vibrating casting adopts scraper plate that slurry is wipeed off in the mould of making ornament layer, and it is closely knit to use pressure roller to carry out roll-in then.
5) 3 layers of woven wire are routed in the mould, carry out roll-in, make it to be absorbed in the high-performance cement-based structural sheet of the tightly packed type of fiber reinforcement with pressure roller;
6) maintenance under the product normal temperature of forming was carried out the demoulding after 24 hours;
7) place the curing room maintenance after 1 day to the product after the demoulding, be prepared into tightly packed high-performance cement-based fiber composite article.
Embodiment 5:
1) according to the weight percent proportioning with cement 35kg (35%); Sand 30 kg (30%); Mica flake 8kg (8%); Nylon fiber 1kg (1%); Xylon 0.5kg (0.5%); Liquid paint 4kg (4%); Organosilicon crylic acid latex 2.5kg (2.5%); Frostproofer Sodium Nitrite 0.5kg (0.5%); Thickening material Vltra tears 0.3kg (0.3%); Retardant wood calcium 0.2kg (0.2%); Silicon ash 2kg (2%); It is subsequent use to process slurry after breeze 2kg (2%) and water 14kg (14%) stir.
2), adopt spread coating in mould, to make ornament layer, spontaneous curing 50 minutes with the surface layer mortar that configures;
3) according to the weight percent proportioning be 40% nanometer SiO with cement 38kg (38%), water 14kg (14%), ultrafine quartz powder 30kg (30%), silicon ash 8kg (8%), thomel 1kg (1%), steel fiber 0.5kg (0.5%), nylon fiber 0.5kg (0.5%), silicone-modified benzene emulsion 2kg (2%), frostproofer Sodium Nitrite 0.5kg (0.5%), thickening material Vltra tears 0.3kg (0.3%), retardant wood calcium 0.2kg (0.2%), solid content 2Colloid 5kg (5%) stirs and processes the high-performance cement-based structural sheet slip of the tightly packed type of fiber reinforcement;
4) with the high-performance cement-based structural sheet slip of the tightly packed type of the fiber reinforcement that configures, be ejected in the mould of making ornament layer, adopt scraper plate that slurry is wipeed off, it is closely knit to use pressure roller to carry out roll-in then.
5) 1 layer of alkali resistant glass fibre felt is routed in the mould, carries out roll-in, make it to be absorbed in the high-performance cement-based structural sheet of the tightly packed type of fiber reinforcement with pressure roller;
6) the product vapor cure of forming after 4 hours, is carried out the demoulding;
7) place the curing room maintenance after 2 days to the product after the demoulding, be prepared into tightly packed high-performance cement-based fiber composite article.
Embodiment 6:
1) according to the weight percent proportioning with cement 43kg (43%); Sand 20 kg (20%); The sub-9kg of microlith (9%); PVA fiber 0.5kg (0.5%); PP fiber 0.5kg (0.5%); Pigment powder 2kg (2%); Polymer dispersion powder 2kg (2%); Thickening material Natvosol 0.5kg (0.5%); Retardant molasses 0.5kg (0.5%); Water reducer naphthalenesulfonate formaldehyde condensation compound 0.5kg (0.5%); Silicon ash 0.5kg (0.5%); It is subsequent use to process slurry after metakaolin 2kg (2%) and water 19kg (19%) stir.
2), adopt the laying vibratory drilling method in mould, to make ornament layer, spontaneous curing 60 minutes with the surface layer mortar that configures;
3) according to the weight percent proportioning be 40% nanometer Al with cement 47kg (47%), water 11kg (11%), ultrafine quartz powder 29kg (29%), metakaolin 3kg (3%), flyash 2kg (2%), spun glass 1kg (1%), PVA fiber 1kg (1%), silicone-modified organosilicon crylic acid latex 1.5kg (1.5%), thickening material Natvosol 0.3kg (0.3%), retardant molasses 0.2kg (0.2%), solid content 2O 3Colloid 4kg (4%) stirs and processes the high-performance cement-based structural sheet slip of the tightly packed type of fiber reinforcement;
4) with the high-performance cement-based structural sheet slip of the tightly packed type of the fiber reinforcement that configures, vibrating casting adopts scraper plate that slurry is wipeed off in the mould of making ornament layer, and it is closely knit to use pressure roller to carry out roll-in then.
5) 2 layers of alkali resistant glass fibre grid cloth are routed in the mould, carry out roll-in, make it to be absorbed in the high-performance cement-based structural sheet of the tightly packed type of fiber reinforcement with pressure roller;
6) the product vapor cure of forming after 10 hours, is carried out the demoulding;
7) place the curing room maintenance after 3 days to the product after the demoulding, be prepared into tightly packed high-performance cement-based fiber composite article.
Embodiment 7:
1) according to the weight percent proportioning with cement 28kg (28%); Sand 46 kg (46%); PU fiber 1kg (1%); PP fiber 1kg (1%); Liquid paint 3kg (3%); Gather acrylic emulsion 2kg (2%); Thickening material SEPIGEL 305 0.5kg (0.5%); Retardant Hydrocerol A 0.5kg (0.5%); Water reducer sulfonated melamine compound condenses 0.5kg (0.5%); Flyash 3kg (3%); It is subsequent use to process slurry after stone flour 0.5kg (0.5%) and water 14kg (14%) stir.
2), adopt gunite in mould, to make ornament layer, spontaneous curing 25 minutes with the surface layer mortar that configures;
3) be 30% nanometer SiO according to the weight percent proportioning with cement 33kg (33%), water 18kg (18%), ultrafine quartz powder 42kg (42%), breeze 3kg (3%), silicon ash 1kg (1%), thomel 0.5kg (0.5%), PP fiber 0.5kg (0.5%), the silicone-modified acrylic emulsion 0.5kg (0.5%), thickening material SEPIGEL 305 0.3kg (0.3%), retardant Hydrocerol A 0.2kg (0.2%), solid content of gathering 2Colloid 1kg (1%) stirs and processes the high-performance cement-based structural sheet slip of the tightly packed type of fiber reinforcement;
4) with the high-performance cement-based structural sheet slip of the tightly packed type of the fiber reinforcement that configures, be ejected in the mould of making ornament layer, adopt scraper plate that slurry is wipeed off, it is closely knit to use pressure roller to carry out roll-in then.
5) 3 layers of woven wire are routed in the mould, carry out roll-in, make it to be absorbed in the high-performance cement-based structural sheet of the tightly packed type of fiber reinforcement with pressure roller;
6) the product vapor cure of forming after 24 hours, is carried out the demoulding;
7) place the curing room maintenance after 1 day to the product after the demoulding, be prepared into tightly packed high-performance cement-based fiber composite article.
Embodiment 8:
1) it is subsequent use to process slurry after according to the weight percent proportioning cement 33kg (33%), microlith 51 kg (51%), PVA fiber 1kg (1%), pigment powder 1kg (1%), benzene emulsion 1kg (1%), hardening accelerator vitriol 1kg (1%), water reducer poly carboxylic acid 1kg (1%), stone flour 1kg (1%) and water 10kg (10%) being stirred.
2), adopt gunite in mould, to make ornament layer, spontaneous curing 45 minutes with the surface layer mortar that configures;
3) according to the weight percent proportioning with cement 29kg (29%); Water 12kg (12%); Ultrafine quartz powder 41.5kg (41.5%); Stone flour 6kg (6%); Flyash 3kg (3%); Steel fiber 1kg (1%); Basalt fibre 0.5kg (0.5%); PU fiber 0.5kg (0.5%); Paper pulp fiber 0.5kg (0.5%); Silicone-modified benzene emulsion 1kg (1%); Water reducer is selected naphthalenesulfonate formaldehyde condensation compound 1kg (1%) for use; Thickening material Vltra tears 0.5kg (0.5%); Retardant wood calcium 0.5kg (0.5%); Solid content is 30% nanometer Al 2O 3Colloid 3kg (3%) stirs and processes the high-performance cement-based structural sheet slip of the tightly packed type of fiber reinforcement;
4) with the high-performance cement-based structural sheet slip of the tightly packed type of the fiber reinforcement that configures, be ejected in the mould of making ornament layer, adopt scraper plate that slurry is wipeed off, it is closely knit to use pressure roller to carry out roll-in then.
5) 2 layers of alkali resistant glass fibre grid cloth are routed in the mould, carry out roll-in, make it to be absorbed in the high-performance cement-based structural sheet of the tightly packed type of fiber reinforcement with pressure roller;
6) the product vapor cure of forming after 12 hours, is carried out the demoulding;
7) place the curing room maintenance after 2 days to the product after the demoulding, be prepared into tightly packed high-performance cement-based fiber composite article.
 
The product of a kind of tightly packed high-performance cement-based fiber composite article of the present invention and working method thereof reaches following technical indicator: volume density≤2.3g/cm through test 3Bending resistance ratio intensity (LOP)>=13MPa; Beaming resistance limit intensity (MOR)>=25MPa; Ultimate compression strength>=155MPa; Shock resistance (steam-cured 3d)>=25KJ/m2; Shrinking percentage (28d)≤1 * 10 -4Water-intake rate≤1.2%; Freeze-thaw cycle 25 times, no peeling, strength retention ratio>=95%; 80 ℃ of water-bath accelerated deterioration 7d strength retention ratio>=90%.

Claims (10)

1. a tightly packed high-performance cement-based fiber composite article is characterized in that: comprise fiber reinforced cement based flexible break resistant surface layer and the high-performance cement-based structural sheet of the tightly packed type of fiber reinforcement; On fiber reinforced cement based flexible break resistant surface layer, be compounded with the high-performance cement-based structural sheet of the tightly packed type of fiber reinforcement; In the high-performance cement-based structural sheet of the tightly packed type of fiber reinforcement, be equipped with 0-3 layer mesh reinforcements; Fiber reinforced cement based flexible break resistant surface layer and the high-performance cement-based structural sheet of the tightly packed type of fiber reinforcement are in having the mould of decorative effect, to be composited.
2. tightly packed high-performance cement-based fiber composite article according to claim 1 is characterized in that: adopt anti-crack fiber to strengthen decoration mortar in the described fiber reinforced cement based flexible break resistant surface layer and process; Described anti-crack fiber is selected one or more in PVA fiber, PU fiber, PP fiber, nylon fiber, xylon, the paper pulp fiber for use.
3. tightly packed high-performance cement-based fiber composite article according to claim 1 is characterized in that: the high-performance cement-based structural sheet of the tightly packed type of described fiber reinforcement adopts the compound low elastic modulus fiber refinforced cement of high modulus fibre sill to process; Described high modulus fibre is that Young's modulus is higher than concrete filamentary material, selects in spun glass, steel fiber, thomel and the basalt fibre one or more for use; Described low elastic modulus fiber is that Young's modulus is lower than concrete filamentary material, selects in PVA fiber, PU fiber, PP fiber, nylon fiber, xylon, the paper pulp fiber one or more for use.
4. tightly packed high-performance cement-based fiber composite article according to claim 1 is characterized in that: described mesh reinforcements is that alkali resistant glass fibre felt, alkali resistant glass fibre strengthen a kind of in grid cloth, the woven wire.
5. tightly packed high-performance cement-based fiber composite article according to claim 1 is characterized in that: the high-performance cement-based structural sheet of the tightly packed type of described fiber reinforcement forms the tightly packed requirement of millimeter, micron, nanometer grating through cement, ultrafine quartz powder, nano material.
6. the working method of a tightly packed high-performance cement-based fiber composite article is characterized in that:
1) cement, aggregate, pigment, anti-crack fiber, polymkeric substance, admixture, active material, water are mixed according to the following weight per distribution ratio, process the surface layer mortar after stirring,
Wherein the raw material weight per distribution ratio is:
Cement 20-45%,
Aggregate 25-60%,
Anti-crack fiber 0-2%
Pigment 0-5%,
Polymkeric substance 0-2.5%
Admixture 0-2%,
Active material 0-5%
Water 8-20%
Described aggregate is selected one or more in sand, microlith, glass chip, ceramic chip, metal fragment, shell chip, the mica flake for use;
Described anti-crack fiber is selected one or more in PVA fiber, PU fiber, PP fiber, nylon fiber, xylon, the paper pulp fiber for use;
Described pigment is selected pigment powder or liquid pigment for use;
Described polymkeric substance is selected redispersable latex powder for use, is gathered acrylic emulsion, a kind of in the benzene emulsion, organosilicon crylic acid latex;
Described admixture is selected one or more in water reducer, frostproofer, hardening accelerator, thickening material, the retardant for use;
Described active material is selected one or more in metakaolin, flyash, breeze, stone flour, the silicon ash for use;
With the surface layer mortar that configures, adopt and spray or brushing or laying vibratory drilling method, in mould, make ornament layer, spontaneous curing 10-60 minute;
3) cement, water, ultrafine quartz powder, active material, high modulus fibre, low elastic modulus fiber, silicone-modified polymkeric substance, admixture, nano material are mixed according to the following weight per distribution ratio; Stir and process the high-performance cement-based structural sheet slip of the tightly packed type of fiber reinforcement, wherein the raw material weight per distribution ratio is:
Cement 23-51%
Water 10-18%
Ultrafine quartz powder 25-48%
Active material 4-10%
High modulus fibre 0.4-2%
Low elastic modulus fiber 0-1%
Silicone-modified polymkeric substance 0.5-4%
Admixture 0-2%
Nano material 1-5%;
Described admixture is selected one or more in water reducer, frostproofer, hardening accelerator, thickening material, the retardant for use;
Described active material is selected one or more in metakaolin, flyash, breeze, stone flour, the silicon ash for use;
Ultrafine quartz powder is the levigate quartz aggregate of grain diameter less than 30 μ m;
High modulus fibre is selected one or more in spun glass, steel fiber, thomel and the basalt fibre for use;
Low elastic modulus fiber is selected one or more in PVA fiber, PU fiber, PP fiber, nylon fiber, xylon, the paper pulp fiber for use;
Silicone-modified polymkeric substance is selected silicone-modified a kind of in acrylic emulsion, silicone-modified benzene emulsion, the silicone-modified organosilicon crylic acid latex of gathering for use;
4) with the high-performance cement-based structural sheet slip of the tightly packed type of the fiber reinforcement that configures, adopt injection or vibrating casting in the mould of making ornament layer, adopt scraper plate that slurry is wipeed off, it is closely knit to use pressure roller to carry out roll-in then;
5) 0-3 layer mesh reinforcements is routed in the mould, carries out roll-in, make it to be absorbed in the high-performance cement-based structural sheet of the tightly packed type of fiber reinforcement with pressure roller;
6) with the product normal temperature of forming or after vapor cure 4-24 hour, carry out the demoulding;
7) place the curing room maintenance after 1-3 days to the product after the demoulding, be prepared into tightly packed high-performance cement-based fiber composite article.
7. the working method of tightly packed high-performance cement-based fiber composite article according to claim 6 is characterized in that: described water reducer is selected a kind of in naphthalenesulfonate formaldehyde condensation compound, sulfonated melamine compound condenses, the polycarboxylate water-reducer for use;
Described hardening accelerator is selected a kind of in vitriol, nitrite, the trolamine for use;
Described frostproofer is selected a kind of in calcium chloride, salt of wormwood, the Sodium Nitrite for use;
Described thickening material is selected a kind of in Vltra tears, Natvosol, the SEPIGEL 305 for use;
Described retardant is selected a kind of in wooden calcium, molasses, the Hydrocerol A for use;
Described mould is made up of frame mould and base plate mould.
8. the working method of tightly packed high-performance cement-based fiber composite article according to claim 6 is characterized in that described ultrafine quartz powder is the levigate quartz aggregate of grain diameter less than 30 μ m.
9. the working method of tightly packed high-performance cement-based fiber composite article according to claim 6, it is characterized in that: described nano material is selected powder nanometer SiO for use 2, powder nanometer Al 2O 3, colloid nano SiO 2, colloid nano Al 2O 3In a kind of; Colloid nano SiO 2With colloid nano Al 2O 3Be the superior water-soluble solution of stability, solid content is 25% ~ 40%.
10. according to the working method of the tightly packed high-performance cement-based fiber composite article of claim 6, it is characterized in that described silicone-modified polymkeric substance is silicone-modified a kind of in acrylic emulsion, silicone-modified benzene emulsion, the silicone-modified organosilicon crylic acid latex of gathering.
CN2012101818827A 2012-06-05 2012-06-05 Close packing high-performance cement-based fiber composite product and production method thereof CN102701651A (en)

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CN103172323A (en) * 2012-12-28 2013-06-26 北京新航建材集团有限公司 Superfine common glass powder doped active powder concrete and preparation method thereof
CN103664090A (en) * 2013-12-19 2014-03-26 中国中材国际工程股份有限公司 Fiber-hybrid high-ductility cement-based composite material and preparation method thereof
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CN103172323A (en) * 2012-12-28 2013-06-26 北京新航建材集团有限公司 Superfine common glass powder doped active powder concrete and preparation method thereof
CN103664090A (en) * 2013-12-19 2014-03-26 中国中材国际工程股份有限公司 Fiber-hybrid high-ductility cement-based composite material and preparation method thereof
CN103664090B (en) * 2013-12-19 2015-10-07 中国中材国际工程股份有限公司 High ductility cement-base composite material that a kind of fiber is mixed again and preparation method thereof
CN105236868A (en) * 2014-05-27 2016-01-13 上海卓欧建筑装饰工程有限公司 Processing method of cement reinforcing stone
CN105178643B (en) * 2015-08-19 2018-08-31 盐城工业职业技术学院 It prevents nuclear proliferation nuclear power station owner's room body of pollution
CN105178643A (en) * 2015-08-19 2015-12-23 盐城工业职业技术学院 Nuclear power plant main house body for preventing nuclear proliferation pollution
CN105415764A (en) * 2015-12-04 2016-03-23 东莞友联建筑材料有限公司 Composite quartz board and manufacturing process thereof
CN105478765A (en) * 2015-12-12 2016-04-13 北京工业大学 Powder distributing method based on close stacking of metal 3D printing spherical powder
CN106242444A (en) * 2016-07-12 2016-12-21 绍兴职业技术学院 A kind of high-strength environmental protection transparent cement mortar and preparation method thereof
CN106316304A (en) * 2016-08-02 2017-01-11 福州美创美工艺品有限公司 Cement products and preparation methods thereof
CN106830805A (en) * 2017-02-28 2017-06-13 芜湖丰来新型建材有限公司 A kind of concrete and preparation method thereof
CN106835973A (en) * 2017-03-20 2017-06-13 山东大学 Fleece superhigh tenacity cement-base composite material combined bridge deck structure and method
CN107311545A (en) * 2017-07-31 2017-11-03 南京倍立达新材料系统工程股份有限公司 A kind of colored high strong strength self-compaction cement products and preparation method thereof
CN107829503A (en) * 2017-11-07 2018-03-23 来安县塔鑫建材有限公司 A kind of anti-crushing composite expanded perlite integrated heat-preservation hanging plate
CN107721317A (en) * 2017-11-15 2018-02-23 东南大学 Basalt and polyvinyl alcohol mix fiber concrete and preparation method
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CN107902975B (en) * 2017-12-22 2020-09-22 南京倍立达新材料系统工程股份有限公司 Dustproof contamination-resistant fiber reinforced cement product and preparation method thereof
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