CN103664025A - Method of improving bonding performance of fiber bundle and potassium magnesium phosphate cement-based material - Google Patents
Method of improving bonding performance of fiber bundle and potassium magnesium phosphate cement-based material Download PDFInfo
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Abstract
The invention discloses a method of improving bonding performance of a fiber bundle and a potassium magnesium phosphate cement-based material and relates to a manufacturing technology of a fiber-reinforced potassium magnesium phosphate cement composite material. A novel fiber impregnating compound prepared by the method has characteristics such as strong permeability, quick curing, controllable curing speed, high bonding strength, acid resistance, pressure resistance and high temperature resistance. In the fiber bundle cured by the novel fiber impregnating compound, fiber filaments are bonded into an integer by a network structure of -Si-O-Si-, all fiber filaments can be stressed at the same time, and axial tension of the fiber bundle is improved by twice to three times in comparison with that of the un-treated fiber bundle. In the fiber-reinforced MPC(Magnesium Phosphate Cement)-based composite material prepared by the fiber bundle cured by the novel fiber impregnating compound, dead-burned magnesium oxide powder deposited on the surface of the fiber bundle participates in hydration reaction of an MPC base body, so that interface bonding of the fiber bundle and the MPC base body is reinforced; and pulling-drawing force of the fiber bundle is improved by 15%-40% in comparison with that of the fiber bundle treated by an epoxy resin impregnating compound. The method disclosed by the invention is simple in preparation process and convenient to use, and has cost which is only 1/10-1/6 of that of the epoxy resin fiber impregnating compounds.
Description
Technical field
The present invention relates to a kind of New Building Materials, especially the manufacturing technology of fiber reinforcement potassium magnesium phosphate cement composite material, particularly a kind of method of improving fibrous bundle and potassium magnesium phosphate cement-based material adhesive property.
Background technology
Since China reform and opening-up, national economy obtains rapid growth, and " scientific and technical innovation, autonomous innovation " become the main flow of the current industrial development of China, and China's industry is progressively to intensive style, energy-saving and emission-reduction, the future development of low-carbon (LC).The civil engineering construction of China is rapidly developed in recent years, has brought downstream building material industry industrial vigorous, but has a blemish in an otherwise perfect thing various cement-base composite materials are technical.Through retrieving the current overview of domestic and international fiber reinforcement magnesium phosphate cement based composites manufacturing technology: magnesium phosphate cement (MPC) is by dead roasting magnesium oxide and soluble phosphate, chemical additive and mineral admixture according to a certain percentage, under acidic conditions, by soda acid chemical reaction and physical action, change to generate and take phosphoric acid salt as cohering the inorganic coagulation material of phase; According to the difference of phosphoric acid salt kind used, can be divided into magnesium ammonium phosphate cement (take ammonium phosphoric acid salt as acid constituents) and potassium magnesium phosphate cement (take potassium phosphoric acid salt as acid constituents) etc.Such material, at normal temperatures by chemical bonds, has possessed the principal feature of silicates gelling material and stupalith, i.e. strong, the hardenite partial neutral of low-temperature curing, high early strong, high volume stability, cohesiveness and good weather resistance etc.With silicate cement comparison, MPC and fiber have better cohesive strength and consistency, mechanical property and the weather resistance of the MPC based composites being strengthened by glass fibre, polypropylene fibre and steel fiber are all better than silicate cement cement-based composite material, mix appropriate polypropylene fibre or steel fiber and can make MPC base mortar show strain hardening characteristic and higher bend ductility, and under hygrothermal environment, still keep good stability.With staple fibre refinforced cement sill, can improve its splitting resistance and fragility, but the tensile strength of matrix material and fracture resistance raising are limited; With fabric fibre bundle refinforced cement sill, fabric fibre bundle rove can be main to layout along component stress, and fiber is effectively improved to the enhancing efficiency of matrix, and this matrix material has good supporting capacity and toughness; With assorted fibre (staple fibre and fabric fibre bundle) refinforced cement sill, utilize the mutual supplement with each other's advantages of two kinds of fibers can obtain more good cracking resistance, Crack Control ability, and obtain the more cement-base composite material of high bearing capacity.
In the technology of preparing of fiber reinforced cement-based composite material, the improvement of cement matrix and fiber interface adhesive property, be related to the raising of intensity, toughness and the performance of resisting cracking of fiber reinforced cement-based composite material, directly affected the range of application of fiber reinforced cement-based composite material.The existing major technique of improving cement matrix and fibrous bundle interfacial bond property is as follows:
(1) use the adhesive property at thin cement slurry refinforced cement matrix and fibrous bundle interface.With thin cement slurry dip-coating fibrous bundle, well infiltrated fiber is intrafascicular for thin cement slurry, after solidifying, fiber yarn can be sticked into one.The axial tensile strength of fibrous bundle with and be all improved to some extent with the cohesive strength of cement matrix.But thin cement slurry curing speed is slow, and cohesive strength is low, and is alkaline grout hardenite glass fibre is had to corrosive nature.
(2) use the adhesive property at epoxy resin treating compound refinforced cement matrix and fibrous bundle interface.With epoxy resin treating compound, infiltrate and cured fiber bundle, its tensile strength and initial elastic modulus are significantly improved.Because fiber yarn in treated fibrous bundle is bonded to integral body mutually, during tension, the fiber yarn that can not be closed on completely of the defective fiber yarn resistance to tension of part overlaps repairing timely, guarantees the cooperative bearing of all fibres silk.Treated fibrous bundle and the cohesive strength of cement matrix are also improved to some extent.But epoxy resin treating compound cost is high, curing speed is slow, and non-refractory.
(3) use the adhesive property at epoxy resin treating compound scab refinforced cement matrix and fibrous bundle interface.Be coated with the quartz sand that epoxy resin treating compound and not yet curing clay footpath, fibrous bundle surface are 0.6mm～1.2mm, can improve the friction, capability on fibrous bundle surface, even can produce a kind of interlock effect with matrix, thereby further improve the cohesive force of fibrous bundle and cement matrix.But surperficial sticky sand grains, when stressed, easily from fibrous bundle surfacial spalling, and drives the rove of upper layer together to peel off, and causes fiber failure, can not continue carrying.
Therefore, the scientific and technical personnel of colleges and universities, related scientific research mechanism and enterprise improve the technology of fibrous bundle and potassium magnesium phosphate cement-based material adhesive property at research and probe constantly, although make certain gains, in practice, still exist the technical barrier not yet overcoming.
Summary of the invention
The invention reside in and overcome above deficiency, a kind of method of improving fibrous bundle and potassium magnesium phosphate cement-based material adhesive property is provided, the tencel treating compound of preparing, has that perviousness is strong, quick solidifying, curing speed is controlled, cohesive strength is high, the feature such as acidproof, withstand voltage and high temperature resistant.The fibrous bundle axial tension of processing through tencel treating compound is significantly improved, with it, prepare fiber reinforcement MPC based composites, have good cracking resistance, Crack Control ability, the drawing force of fibrous bundle in MPC sill is higher than the fibrous bundle drawing force of processing through epoxy resin treating compound.This invention preparation technology is simple, easy to use, energy-conserving and environment-protective, cost are lower.
The present invention solves the technological step that its technical problem adopts: (1) gets sodium silicate aqueous solution as base stock, need select the neutral sodium silicate aqueous solution of high-module when the glass fiber bundle, during for the fibrous bundle of other kinds, select the alkaline silicate sodium water solution that modulus is low; (2) get Sodium Silicofluoride as solidifying agent, dead roasting magnesia powder as filler, suitable Sodium Silicofluoride and dead roasting magnesia powder are mixed in sodium silicate aqueous solution, stir, obtain the controlled tencel treating compound of curing speed; (3) with the even brushing fibrous bundle of tencel treating compound surface, fully infiltrate fibrous bundle, after fibrous bundle solidifies for the preparation of fiber reinforcement MPC based composites.
A kind of detailed process of the method for improving fibrous bundle and potassium magnesium phosphate cement-based material adhesive property is as follows:
First step: select modulus is 2.6～3.0, degree Beaume is 38.4～50.3 sodium silicate aqueous solution as base stock.Consider that alkaline silicate sodium water solution easily produces corrosion to glass fibre, select the neutral sodium silicate aqueous solution of high-module (n=3) for glass fiber bundle, the fibrous bundle of other kinds (carbon fiber, basalt fibre etc.) can be selected the alkaline silicate sodium water solution of modulus low (n=2.6～2.8).Get technical grade Sodium Silicofluoride powder as solidifying agent, one of base stock of MPC dead roasting magnesia powder (MgO content>=95%, specific surface area 2.0～2.5m
2/ kg) as filler.
Second step: get the Sodium Silicofluoride (its volume according to the curing speed of the modulus of temperature, humidity, water glass and degree Beaume, requirement etc. suitably adjust) of 0～10 mass parts, the dead roasting magnesia powder (its volume is suitably adjusted in above-mentioned scope according to the modulus of sodium silicate aqueous solution and degree Beaume) of 10～20 mass parts and the sodium silicate aqueous solution of 100 mass parts in above-mentioned scope; First Sodium Silicofluoride is added in sodium silicate aqueous solution, the rotating speed stirring 1～2min with planetary liquid stirrers with 60～90r/min, fully dissolves Sodium Silicofluoride crystal; The rotating speed that regulates afterwards planetary liquid stirrers is 30r/min left and right, and the burned magnesium oxide powder of checkmating slowly adds in sodium silicate aqueous solution, then is uniformly mixed liquid 2～3min with the rotating speed of 60～90r/min, obtains the controlled tencel treating compound of curing speed.
Third step: fibrous bundle is hung, with the even brushing fibrous bundle of tencel treating compound surface, fully infiltrate fibrous bundle; Between the rapid infiltrated fiber silk of sodium silicate aqueous solution that wherein perviousness is strong, the part dead roasting magnesia powder of poor permeability is deposited on fibrous bundle surface; Along with the carbonization of sodium silicate aqueous solution and dehydration crystallization, tencel treating compound progressively solidifies, and the network structure of formed-Si-O-Si-, is bonded to integral body by fiber yarn;
The 4th step: by certain proportioning preparation MPC sill slurry, casting and closely knit, wherein additionally arrange the fibrous bundle that has cured processing, be prepared into fiber reinforcement MPC based composites, wherein the dead roasting magnesia powder particle on fibrous bundle surface has participated in the hydration reaction of MPC matrix, and hydrated product is by the interface bonding of fibrous bundle and MPC matrix.
The invention has the beneficial effects as follows: the tencel treating compound of the method preparation, has that perviousness is strong, quick solidifying, curing speed is controlled, cohesive strength is high, the feature such as acidproof, withstand voltage and high temperature resistant.In the fibrous bundle of tencel treating compound solidification treatment, the network structure of-Si-O-Si-is bonded to integral body by fiber yarn, during tension, the fiber yarn that can not be closed on completely of the defective fiber yarn resistance to tension of part overlaps repairing in time, guarantee that all fibres silk is simultaneously stressed, the more untreated fibrous bundle of axial tension of fibrous bundle improves 2～3 times.With the fibrous bundle of tencel treating compound solidification treatment, prepare fiber reinforcement MPC based composites, there is good cracking resistance, Crack Control ability.The dead roasting magnesia powder and the phosphate reaction in MPC sill that are deposited on fibrous bundle surface generate phosphoric acid salt hydrate, make fibrous bundle and MPC basal body interface produce Chemical bond power, the drawing force of the fibrous bundle that the drawing force of fibrous bundle in MPC matrix can be processed through epoxy resin treating compound improves 15～40%.The preparation technology of this invention is simple, easy to use, and cost is only 1/10～1/6 of epoxy resin fibrid treating compound.
Accompanying drawing explanation
Fig. 1 is a kind of technical process that improves the method for fibrous bundle and potassium magnesium phosphate cement-based material adhesive property.
Fig. 2 be untreated, be coated with epoxy resin treating compound, be coated with the axial tension effect schematic diagram of basalt fibre bundle of the Different treatments of tencel treating compound.
Fig. 3 be untreated, be coated with epoxy resin treating compound, the basalt fibre bundle of Different treatments that the is coated with tencel treating compound drawing force effect schematic diagram in MPC matrix.
Fig. 4 be untreated, be coated with epoxy resin treating compound, be coated with the schematic diagram of microtexture of glass fiber bundle of the Different treatments of tencel treating compound.
Fig. 5 be untreated, be coated with epoxy resin treating compound, the carbon fiber bundle of Different treatments that is coated with tencel treating compound and the schematic diagram of the interfacial microstructure of MPC matrix.
Fig. 6 be coated with tencel treating compound carbon fiber bundle in MPC matrix, the schematic diagram of the microtexture of the dead roasting magnesia powder of fibrous bundle surface hydration.
Embodiment
That the invention will be further described in conjunction with the accompanying drawings and embodiments below:
In Fig. 1: (1), under natural environmental condition, mixes sodium silicate aqueous solution, Sodium Silicofluoride and dead roasting magnesia powder according to a certain percentage, makes tencel treating compound;
(2) fibrous bundle is hung, with the even brushing fibrous bundle of tencel treating compound surface, fully infiltrate fibrous bundle; Between the rapid infiltrated fiber silk of sodium silicate aqueous solution that wherein perviousness is strong, the part dead roasting magnesia powder of poor permeability is deposited on fibrous bundle surface; Along with the carbonization of sodium silicate aqueous solution and dehydration crystallization, tencel treating compound progressively solidifies, and the network structure of formed-Si-O-Si-, is bonded to integral body by fiber yarn;
(3) by certain proportioning preparation MPC sill slurry, casting and closely knit, wherein additionally arranges the fibrous bundle of solidification treatment, is prepared into fiber reinforcement MPC based composites; The dead roasting magnesia powder particle on the fibrous bundle surface of processing through tencel treating compound participates in the hydration reaction of MPC matrix, has strengthened the interface bonding of fibrous bundle and MPC matrix.
According to the technological process of Fig. 1, whole preparation process sequentially can be divided into three phases by preparation: the first stage is the preparation of tencel treating compound, subordinate phase is for using the dip-coating of tencel treating compound, cured fiber bundle, and the phase III is for preparing fiber reinforcement MPC based composites with curing fibrous bundle.
In Fig. 2: be the axial tension of the basalt fibre bundle of Different treatments, when the axial tension test of carrying out fibrous bundle, fibrous bundle two ends are coated with to epoxy resin treating compound, centre stays part untreated, after solidifying, carry out axial tension test, obtain the axial tension of untreatment fiber bundle.During test, to basalt fibre Shu Caiyong untreated, be coated with epoxy resin treating compound and be coated with three kinds of surface treatment modes of tencel treating compound, axial tension test-results shows, the axial tension that is coated with the basalt fibre bundle of epoxy resin treating compound and tencel treating compound increases substantially, and tencel treating compound is better than epoxy resin treating compound to the enhancement of basalt fibre bundle.
In Fig. 3: be the basalt fibre bundle of the Different treatments drawing force in MPC matrix, wherein the contact surface length of basalt fibre bundle and MPC matrix is 10mm, MPC matrix length of time is 3d, and during test, basalt fibre Shu Junwei extracts destruction.Fibrous bundle exposed part is coated with to epoxy resin treating compound, imbeds MPC body portion untreated, after solidifying, carry out pull-out test, obtain the drawing force of untreatment fiber bundle.The drawing force more untreated basalt fibre bundle of the basalt fibre bundle that test-results shows to be coated with epoxy resin treating compound and tencel treating compound in MPC matrix exceeds more than one times, and the drawing force of the basalt fibre bundle that is coated with tencel treating compound in MPC sill is higher than the basalt fibre bundle that is coated with epoxy resin treating compound.
In Fig. 4: be the microtexture of the glass fiber bundle of Different treatments.The neat dispersed arrangement of the intrafascicular fiber yarn of undressed glass fibre, during glass fiber bundle tension, fiber yarn is stressed separately separately; The glass fibre that is coated with epoxy resin treating compound is intrafascicular, due to the gap of epoxy resin treating compound fiberfill fibers silk and fiber yarn is bonded to integral body, fiber yarn energy cooperative bearing during glass fiber bundle tension; The glass fibre that is coated with tencel treating compound is intrafascicular, and treating compound also fills up filametntary gap and fiber yarn is bonded to integral body, and glass fiber bundle surface adhesion a small amount of magnesia powder, and during glass fiber bundle tension, fiber yarn also can cooperative bearing.
In Fig. 5: be the carbon fiber bundle of Different treatments and the interfacial microstructure of MPC matrix.For the carbon fiber bundle of not doing any processing, because the perviousness of MPC slurry is limited, only a small amount of MPC hardenite is filled between carbon fiber, carbon fiber wire cannot be bonded to one, be embedded in still dispersed arrangement of most of carbon fiber wire in MPC matrix, cannot form the effect of cooperative bearing; The carbon fiber bundle and the MPC basal body interface bonding that are coated with epoxy resin treating compound are tight, and treating compound infiltrated fiber bundle inside is firmly bonded together fiber yarn, and carbon fiber bundle surface is more smooth; The carbon dimension bundle that is coated with tencel treating compound bonds closely with MPC basal body interface, and the space between fiber yarn is filled up by treating compound, and fiber yarn is firmly bonded together, and carbon fiber bundle surface adhesion some dead roasting magnesia powder particles.
In Fig. 6: be coated with the carbon fiber bundle of tencel treating compound in MPC matrix, the dead roasting magnesia powder particle of carbon fiber bundle surface hydration has participated in the hydration reaction of MPC matrix, on its surface, there is the hydrated product of lenticular to produce.
Embodiment 1: the sodium silicate aqueous solution (modulus is 3.0, degree Beaume be 50.3) of getting the Sodium Silicofluoride of 2 mass parts, the dead roasting magnesia powder of 10 mass parts and 100 mass parts, with planetary liquid stirrers, with the rotating speed of 60～90r/min, be uniformly mixed liquid 3～5min, obtain the controlled tencel treating compound of curing speed.With the even brushing glass fiber bundle of tencel treating compound surface, abundant sized glass fibres bundle, after the processed 3d of glass fiber bundle (curing), with DL-5000 type electronic tension tester, carry out axial tension test, to untreated glass fiber bundle with through being coated with the glass fiber bundle of epoxy resin treating compound processing, carry out axial tension test simultaneously; By certain proportioning preparation MPC sill slurry, casting and closely knit, wherein additionally arrange the glass fiber bundle of processing through different modes, be prepared into fiber reinforcement MPC based composites drawing test specimen, the drawing force of the glass fiber bundle of untreated with the test of DL-5000 type electronic tension tester, to be coated with epoxy resin treating compound, painting tencel treating compound Different treatments in MPC matrix.Test result is in Table 1:
The axial tension of the glass fiber bundle of table 1 Different treatments and the drawing force in MPC matrix
Embodiment 2: the sodium silicate aqueous solution (modulus is 2.6～2.8, degree Beaume be 38.4～48.3) of getting the Sodium Silicofluoride of 8～10 mass parts, the dead roasting magnesia powder of 15～20 mass parts and 100 mass parts, with planetary liquid stirrers, with the rotating speed of 60～90r/min, be uniformly mixed liquid 2～3min, obtain the controlled tencel treating compound of curing speed.With the even brushing carbon fiber bundle of tencel treating compound surface, fully infiltrate carbon fiber bundle, after the processed 3d of carbon fiber bundle (curing), with DL-5000 type electronic tension tester, carry out axial tension test, to untreated carbon fiber bundle with through being coated with the carbon fiber bundle of epoxy resin treating compound processing, carry out axial tension test simultaneously; By certain proportioning preparation MPC sill slurry, casting and closely knit, wherein additionally arrange the carbon fiber bundle of processing through different modes, be prepared into fiber reinforcement MPC based composites drawing test specimen, the drawing force of the carbon fiber bundle of untreated with the test of DL-5000 type electronic tension tester, to be coated with epoxy resin treating compound, painting tencel treating compound Different treatments in MPC matrix.Test result is in Table 2:
The axial tension of the carbon fiber bundle of table 2 Different treatments and the drawing force in MPC matrix
Embodiment 3: the sodium silicate aqueous solution (modulus is 2.6～2.8, degree Beaume be 38.4～48.3) of getting the Sodium Silicofluoride of 8～10 mass parts, the dead roasting magnesia powder of 15～20 mass parts and 100 mass parts, with planetary liquid stirrers, with the rotating speed of 60～90r/min, be uniformly mixed liquid 2～3min, obtain the controlled tencel treating compound of curing speed.With the even brushing basalt fibre of tencel treating compound bundle surface, fully infiltrate basalt fibre bundle, after the processed 3d of basalt fibre bundle (curing), with DL-5000 type electronic tension tester, carry out axial tension test, simultaneously to untreated basalt fibre bundle with through being coated with the basalt fibre Shu Jinhang axial tension test of epoxy resin treating compound processing; By certain proportioning preparation MPC sill slurry, casting and closely knit, wherein additionally arrange the basalt fibre bundle of processing through different modes, be prepared into fiber reinforcement MPC based composites drawing test specimen, the drawing force of the basalt fibre bundle of untreated with the test of DL-5000 type electronic tension tester, to be coated with epoxy resin treating compound, painting tencel treating compound Different treatments in MPC matrix.Test result is in Table 3:
The axial tension of the basalt fibre bundle of table 3 Different treatments and the drawing force in MPC matrix
Claims (2)
1. a method of improving fibrous bundle and potassium magnesium phosphate cement-based material adhesive property, is characterized in that:
(1) get sodium silicate aqueous solution as base stock, during for glass fiber bundle, need select the neutral sodium silicate aqueous solution of high-module, during for the fibrous bundle of other kinds, select the alkaline silicate sodium water solution that modulus is low;
(2) get Sodium Silicofluoride as solidifying agent, dead roasting magnesia powder as filler, suitable Sodium Silicofluoride and dead roasting magnesia powder are mixed in sodium silicate aqueous solution, stir, obtain the controlled tencel treating compound of curing speed;
(3) with the even brushing fibrous bundle of tencel treating compound surface, fully infiltrate fibrous bundle, after fibrous bundle solidifies for the preparation of fiber reinforcement MPC based composites.
2. a kind of method of improving fibrous bundle and potassium magnesium phosphate cement-based material adhesive property according to claim 1, is characterized in that: with after the dip-coating of tencel treating compound, cured fiber bundle, and preparation fiber reinforcement MPC based composites, detailed process is as follows:
First step: select modulus is 2.6～3.0, degree Beaume is 38.4～50.3 sodium silicate aqueous solution as base stock.Consider that alkaline silicate sodium water solution easily produces corrosion to glass fibre, select the neutral sodium silicate aqueous solution of high-module (n=3) for glass fiber bundle, the fibrous bundle of other kinds (carbon fiber, basalt fibre etc.) can be selected the alkaline silicate sodium water solution of modulus low (n=2.6～2.8).Get technical grade Sodium Silicofluoride powder as solidifying agent, one of base stock of MPC dead roasting magnesia powder (MgO content>=95%, specific surface area 2.0～2.5m
2/ kg) as filler.
Second step: get the Sodium Silicofluoride (its volume according to the curing speed of the modulus of temperature, humidity, water glass and degree Beaume, requirement etc. suitably adjust) of 0～10 mass parts, the dead roasting magnesia powder (its volume is suitably adjusted in above-mentioned scope according to the modulus of sodium silicate aqueous solution and degree Beaume) of 10～20 mass parts and the sodium silicate aqueous solution of 100 mass parts in above-mentioned scope; First Sodium Silicofluoride is added in sodium silicate aqueous solution, the rotating speed stirring 1～2min with planetary liquid stirrers with 60～90r/min, fully dissolves Sodium Silicofluoride crystal; The rotating speed that regulates afterwards planetary liquid stirrers is 30r/min left and right, and the burned magnesium oxide powder of checkmating slowly adds in sodium silicate aqueous solution, then is uniformly mixed liquid 2～3min with the rotating speed of 60～90r/min, obtains the controlled tencel treating compound of curing speed.
Third step: fibrous bundle is hung, with the even brushing fibrous bundle of tencel treating compound surface, fully infiltrate fibrous bundle; Between the rapid infiltrated fiber silk of sodium silicate aqueous solution that wherein perviousness is strong, the part dead roasting magnesia powder of poor permeability is deposited on fibrous bundle surface; Along with the carbonization of sodium silicate aqueous solution and dehydration crystallization, tencel treating compound progressively solidifies, and the network structure of formed-Si-O-Si-, is bonded to integral body by fiber yarn;
The 4th step: by certain proportioning preparation MPC sill slurry, casting and closely knit, wherein additionally arrange the fibrous bundle that has cured processing, be prepared into fiber reinforcement MPC based composites, wherein the dead roasting magnesia powder particle on fibrous bundle surface has participated in the hydration reaction of MPC matrix, and hydrated product is by the interface bonding of fibrous bundle and MPC matrix.
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| CN104557132A (en) * | 2015-01-21 | 2015-04-29 | 重庆大学 | Method for reinforcing concrete structures |
| CN104609825A (en) * | 2015-02-05 | 2015-05-13 | 泉州三欣新材料科技有限公司 | Heat insulation inorganic coating and preparation method thereof |
| CN104804454A (en) * | 2015-05-13 | 2015-07-29 | 宿州学院 | Fiber reinforced organic silicon composite material and preparation method thereof |
| CN106396448A (en) * | 2016-09-14 | 2017-02-15 | 四川力久云智知识产权运营有限公司 | Cement-based material reinforced basalt fiber special impregnating agent, and preparation method thereof |
| CN116375422A (en) * | 2023-03-31 | 2023-07-04 | 盐城市福奇混凝土有限公司 | Corrosion-resistant marine concrete and preparation method thereof |
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| CN1488600A (en) * | 2003-09-08 | 2004-04-14 | 北京合百意生态能源科技开发有限公司 | Glass fiber reinforced magnesia shell composite material for solar range and preparing process thereof |
| CN1534073A (en) * | 2003-03-28 | 2004-10-06 | 马子鳌 | Non toxic odourless wood glue and its preparation method |
| CN1580419A (en) * | 2004-05-14 | 2005-02-16 | 吴嘉隆 | Chemical sand-stabilizing agent using silicate as main component |
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| CN1534073A (en) * | 2003-03-28 | 2004-10-06 | 马子鳌 | Non toxic odourless wood glue and its preparation method |
| CN1488600A (en) * | 2003-09-08 | 2004-04-14 | 北京合百意生态能源科技开发有限公司 | Glass fiber reinforced magnesia shell composite material for solar range and preparing process thereof |
| CN1580419A (en) * | 2004-05-14 | 2005-02-16 | 吴嘉隆 | Chemical sand-stabilizing agent using silicate as main component |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104557132A (en) * | 2015-01-21 | 2015-04-29 | 重庆大学 | Method for reinforcing concrete structures |
| CN104609825A (en) * | 2015-02-05 | 2015-05-13 | 泉州三欣新材料科技有限公司 | Heat insulation inorganic coating and preparation method thereof |
| CN104609825B (en) * | 2015-02-05 | 2016-09-28 | 泉州三欣新材料科技有限公司 | A kind of heat-insulation and heat-preservation inorganic coating and preparation method thereof |
| CN104804454A (en) * | 2015-05-13 | 2015-07-29 | 宿州学院 | Fiber reinforced organic silicon composite material and preparation method thereof |
| CN106396448A (en) * | 2016-09-14 | 2017-02-15 | 四川力久云智知识产权运营有限公司 | Cement-based material reinforced basalt fiber special impregnating agent, and preparation method thereof |
| CN106396448B (en) * | 2016-09-14 | 2018-07-10 | 四川力久云智知识产权运营有限公司 | A kind of cement-based material enhancing basalt fibre sizing agent special and preparation method thereof |
| CN116375422A (en) * | 2023-03-31 | 2023-07-04 | 盐城市福奇混凝土有限公司 | Corrosion-resistant marine concrete and preparation method thereof |
| CN116375422B (en) * | 2023-03-31 | 2024-02-13 | 盐城市福奇混凝土有限公司 | Corrosion-resistant marine concrete and preparation method thereof |
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