CN105178161A - Basalt fiberboard and concrete composite beam, preparation method of composite beam and girder type bridge - Google Patents
Basalt fiberboard and concrete composite beam, preparation method of composite beam and girder type bridge Download PDFInfo
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- CN105178161A CN105178161A CN201510309135.0A CN201510309135A CN105178161A CN 105178161 A CN105178161 A CN 105178161A CN 201510309135 A CN201510309135 A CN 201510309135A CN 105178161 A CN105178161 A CN 105178161A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 25
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- 239000011094 fiberboard Substances 0.000 title abstract 6
- 229920002748 Basalt fiber Polymers 0.000 claims abstract description 321
- 238000004321 preservation Methods 0.000 claims abstract description 8
- 210000003205 muscle Anatomy 0.000 claims description 62
- 238000010438 heat treatment Methods 0.000 claims description 60
- 229920001187 thermosetting polymer Polymers 0.000 claims description 59
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- 150000001875 compounds Chemical class 0.000 claims description 37
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- Reinforced Plastic Materials (AREA)
Abstract
The invention discloses a basalt fiberboard and concrete composite beam. A basalt fiberboard serves as a base plate of the basalt fiberboard and concrete composite beam. A basalt fiber reinforced cage composed of basalt fiber reinforcement bars serves as a concrete framework. The base plate and the concrete framework are combined into an integrated three-dimensional beam framework. Basalt fibers have multiple good properties, so that the basalt fiberboard and the basalt fiber reinforcement bars which are prepared from the basalt fibers have the properties such as high strength, high hardness, sound insulation, fire resistance, heat preservation, acid and alkali resistance and high-temperature stability as well. Accordingly, the existing problem of a reinforced concrete beam is solved, the using property of the beam is further improved, and the service life of the beam is further prolonged. The invention further discloses a preparation method of the basalt fiberboard and concrete composite beam and a girder type bridge.
Description
Technical field
The present invention relates to technical field of bridge engineering, especially relate to basalt fibre board concrete compound beam and preparation method thereof and beam bridge.
Background technology
Basalt fibre, be basalt building stones after 1450 DEG C ~ 1500 DEG C meltings, by the continuous fiber of platinum-rhodium alloy bushing high speed pulling.Basalt fibre all shows excellent performance in many aspects: 1. chemical property, basalt fibre contains K
2o, MgO and TiO
2, make basalt fibre have than the better acid resistance of alkali-free glass fibre, alkali resistance and water-resistant capacity, 2. physical property, basalt belongs to refractory mineral, fusion temperature is more than 1500 DEG C, sintering temperature reaches 1060 DEG C, basalt fibre is made to have excellent high temperature resistant and resistance to low temperature, effective serviceability temperature scope of parabasalt fiber is-260 DEG C ~ 700 DEG C, extraordinary basalt fibre can reach 982 DEG C, its serviceability temperature scope substantially exceeds other classification fibrous material, the sound-absorption coefficient of basalt fibre is greater than other fibers such as glass fiber, it is a kind of desirable sound insulation materials, basalt fibre also has excellent heat-insulating property and electrical insulation capability, a kind of desirable heat insulating material and electric insulation electronic material, 3. mechanical mechanics property, the tensile strength of basalt fibre and alkali-free glass fibre and carbon fiber suitable, its modulus of elasticity is 1.5 times of alkali-free glass fibre, it is 1.9 times of high-strength S glass fiber, from comprehensive mechanical mechanical property, basalt fibre is a kind of fiber between carbon fiber and glass fiber, and being far superior to the chemical fibres such as polypropylene and wood fibre, is a kind of desirable composite material reinforcing fibre, 4. basalt fibre also has excellent high-temperature stability, and along with temperature raises, the fall of its every mechanical property, process based prediction model is all less than alkali-free glass fibre.In addition, the discarded object that the production technology of basalt fibre produces is few, and environmental pollution is little, can directly proceed in ecological environment after product abandonment, without any harm, because of but a kind of genuine green, environment-friendly materials.
Beam bridge is to be subject to curved girder as the bridge of supporting member.According to the static(al) system of girder, be divided into simply supported girder bridge, continuous girder bridge and cantilever glider bridge; According to the cross section pattern of girder, plate shape bridge, ribbed slab bridge and box-shaped bridge can be divided into; According to the material of girder, wooden bridge, rc beam bridge and prestressed concrete beam bridge etc. can be divided into.Along with scientific and technological progress, most beam bridge adopts reinforced concrete beam or prestressed concrete beam to use as girder.In reinforced concrete beam or prestressed concrete beam, become with reinforcing bar binding or be welded into reinforcing cage as skeleton, mainly bear the falling part of load suffered by girder, concrete, as matrix material, mainly bears the pressure portion of load suffered by girder.Along with scientific and technological progress, reinforcing bar, as a kind of traditional metal material, embodies deficiency gradually: 1. compared with numerous new material, and the mechanical properties such as its intensity are lower, cause the mechanical property of reinforced concrete beam lower; 2. the corrosion resistance of reinforcing bar is poor, easily corrodes; 3. the upper limit serviceability temperature of reinforcing bar is lower, at high temperature easily softens; 4. the high-temperature stability of reinforcing bar is poor, declines by a big margin along with environment temperature raises its property indices; 5. reinforcing bar is iron quality metal material, and concrete is main silica containing inorganic material, and the compatibility of the two is poor, and some deficiency above-mentioned all can reduce functional performance and the application life of reinforced concrete beam.
Therefore, how utilizing the basalt fibre with premium properties to overcome current reinforced concrete beam Problems existing is the technical problem that current those skilled in the art need solution badly.
Summary of the invention
In view of this, the object of this invention is to provide a kind of basalt fibre board concrete compound beam, this basalt fibre board concrete compound beam is using basalt fibre plate as base plate, it is fixed with the basalt fibre muscle cage that basalt fibre muscle is formed, concrete is using this basalt fibre muscle cage as reinforcing material, basalt fibre plate is combined with layer of concrete closely, there is no the metal material such as reinforcing bar, thus solve reinforced concrete beam Problems existing, further increase functional performance and the application life of beam.Another object of the present invention is to provide a kind of preparation method of basalt fibre board concrete compound beam.A further object of the invention is to provide a kind of arcuately bridge using above-mentioned basalt fibre board concrete compound beam.
For solving above-mentioned technical problem, technical scheme provided by the invention is:
A kind of basalt fibre board concrete compound beam, comprise basalt fibre plate from down to up and layer of concrete, described layer of concrete comprises basalt fibre muscle cage, and described basalt fibre muscle cage is fixedly connected with described basalt fibre plate.
A preparation method for basalt fibre board concrete compound beam, comprises the following steps:
1) fixing basalt fibre plate, described basalt fibre plate is fixedly connected with many vertical basalt fibre muscle vertical with described basalt fibre plate, many parallel basalt fibre muscle parallel with described basalt fibre plate is fixedly connected with many described vertical basalt fibre muscle and forms basalt fibre muscle cage;
2) with described step 1) in basalt fibre plate be soffit formwork, installation side template and top template form the cavity holding described basalt fibre muscle cage, then at described side template and top template inner surface smearing release agent;
3) toward concreting in described cavity;
4) concrete described in maintenance;
5) remove described side template and top template, obtain basalt fibre board concrete compound beam.
3. preparation method according to claim 2, is characterized in that, described step 1) in the preparation method of basalt fibre plate be
1) basalt fibre is processed into basalt fibre yarn, described basalt yam is processed into there is cancellated basalt fibre tabular fabric;
2) at mould inner surface spraying release agent, then by step 1) obtain basalt fibre tabular fabric and be placed in mould, filled thermoset toner in described basalt fibre tabular fabric;
3) open the heating function of mould, thermosetting powders is fused into thermosetting resin liquid, then held for some time, make thermosetting resin liquid fully infiltrate basalt fibre tabular fabric;
4) heating function of closing molding, makes thermosetting resin liquid cools solidify;
5) remove mould, obtain basalt fibre plate.
Preferably, in described basalt fibre, diameter is the mass percent of the basalt fibre of 0.6 μm ~ 0.9 μm is 60% ~ 70%, and diameter is the mass percent of the basalt fibre of 3 μm ~ 5 μm is 30% ~ 40%.
Preferably, the thickness of described basalt fibre tabular fabric is 1.5cm ~ 3cm, and wherein the diameter of grid is 80 μm ~ 120 μm.
Preferably, described mould comprises heating cabinet and is arranged at 4 pieces of side panels on described heating cabinet, 4 pieces of described side panels are interconnected the casing forming a top-open with described heating cabinet, described heating cabinet is provided with the oil-in that conduction oil is flowed into and the oil-out that conduction oil is flowed out, described oil-in is communicated with heat conduction oil sump by oil pump, described oil-out is communicated with heat conduction oil sump by pipeline, and 4 sides of described heating cabinet and the equal Jacket thickness in outside of bottom surface are the heat-preservation cotton of 50mm ~ 80mm.
Preferably, the granularity of the described thermosetting powders of mass percent 70% ~ 80% is more than or equal to 325 orders, and described thermosetting resin is epoxy resin or phenolic resins.
Preferably, the holding temperature of described thermosetting resin liquid is 220 DEG C ~ 260 DEG C, and temperature retention time is 20min ~ 40min.
Preferably, described step 1) in basalt fibre muscle be connected with described basalt fibre plate by the basalt fiber cloth being impregnated with thermosetting resin liquid, when after described thermosetting resin liquid curing, described basalt fibre muscle is fixed on described basalt fibre plate.
A kind of beam bridge, comprise girder, described girder is the basalt fibre board concrete compound beam described in such scheme or the basalt fibre board concrete compound beam prepared by such scheme.
Advantageous Effects of the present invention is:
1. the base plate of the present invention using basalt fibre plate as basalt fibre board concrete compound beam, the basalt fibre muscle cage formed using basalt fibre muscle is as concrete skeleton, the two is in conjunction with a composition one, three-dimensional beam skeleton, because basalt fibre has multiple premium properties, the basalt fibre plate be made up of basalt fibre and basalt fibre muscle is made to have higher intensity equally, hardness, sound insulation, fire prevention, insulation, the performance such as acid-fast alkali-proof and high-temperature stability, thus solve reinforced concrete beam Problems existing, basalt fibre board concrete compound beam is made to have higher functional performance and application life, can in building, multiple field such as bridge widely uses.
2. the present invention adopts special basalt fibre plate preparation method: first basalt fibre is processed into basalt fibre yarn, again basalt yam is processed into and there is cancellated basalt fibre tabular fabric, utilize thermosetting powders to be heating and curing, obtain basalt fibre plate.Although raw material is still basalt fibre, but before making sheet, pretreatment is carried out to it, by loose, the basalt fibre do not connected each other is processed into basalt fibre yarn, again basalt fibre yarn is processed into tool effigurate, three-dimensional, multilayer cancellated basalt fibre tabular fabric, improve between basalt fibre and be interconnected, make basalt fibre tabular fabric can serve as the skeleton of basalt fibre plate better, thus improve the mechanical mechanics property of basalt fibre plate, especially intensity, be more suitable for using as structural panel, the present invention is first by solid-state, pulverous thermosetting resin is filled in the hollow grid of basalt fibre tabular fabric, pulverous thermosetting resin can enter tiny grid, all grids can be filled up, make liquid thermosetting resin fully can infiltrate basalt fibre tabular fabric, thermosetting resin after hardening, due to intermolecular cross-linking, form net structure, therefore rigidity is large, hardness is high, heatproof is high, nonflammable, product size good stability, the premium properties of thermosetting resin with basalt fibre tabular fabric is combined, significantly improve the functional performance of basalt fibre plate.
3. owing to adopting basalt fibre plate as base plate, adopting basalt fibre muscle cage as skeleton, when making compound beam reach with reinforced concrete beam equality strength, the thickness of layer of concrete can be reduced, reduce the consumption of concrete material, reduce the deadweight of compound beam.
4. the present invention adopts basalt fibre plate as base plate, as casting soffit formwork, can need not install soffit formwork in addition, and be permanent, need not remove, improve operating efficiency, reduce the labour intensity of workman when casting concrete.
Detailed description of the invention
In order to understand the present invention further, below in conjunction with embodiment, the preferred embodiment of the invention is described, but should be appreciated that these descriptions just further illustrate feature of the present invention and advantage, instead of limiting to the claimed invention.
The invention provides a kind of basalt fibre board concrete compound beam, comprise basalt fibre plate from down to up and layer of concrete, described layer of concrete comprises basalt fibre muscle cage, and described basalt fibre muscle cage is fixedly connected with described basalt fibre plate.
The base plate of the present invention using basalt fibre plate as basalt fibre board concrete compound beam, the basalt fibre muscle cage formed using basalt fibre muscle is as concrete skeleton, the two is in conjunction with a composition one, three-dimensional beam skeleton, because basalt fibre has multiple premium properties, the basalt fibre plate be made up of basalt fibre and basalt fibre muscle is made to have higher intensity equally, hardness, sound insulation, fire prevention, insulation, the performance such as acid-fast alkali-proof and high-temperature stability, thus solve reinforced concrete beam Problems existing, basalt fibre board concrete compound beam is made to have higher functional performance and application life, can in building, multiple field such as bridge widely uses.
Owing to adopting basalt fibre plate as base plate, adopting basalt fibre muscle cage as skeleton, when making compound beam reach with reinforced concrete beam equality strength, the thickness of layer of concrete can be reduced, reduce the consumption of concrete material, reduce the deadweight of compound beam.
The present invention adopts basalt fibre plate as base plate, as casting soffit formwork, can need not install soffit formwork in addition, and be permanent, need not remove, improve operating efficiency, reduce the labour intensity of workman when casting concrete.
Present invention also offers a kind of preparation method of basalt fibre board concrete compound beam, comprise the following steps:
1) fixing basalt fibre plate, described basalt fibre plate is fixedly connected with many vertical basalt fibre muscle vertical with described basalt fibre plate, many parallel basalt fibre muscle parallel with described basalt fibre plate is fixedly connected with many described vertical basalt fibre muscle and forms basalt fibre muscle cage;
2) with described step 1) in basalt fibre plate be soffit formwork, installation side template and top template form the cavity holding described basalt fibre muscle cage, then at described side template and top template inner surface smearing release agent;
3) toward concreting in described cavity;
4) concrete described in maintenance;
5) remove described side template and top template, obtain basalt fibre board concrete compound beam.
The preparation method of basalt fibre board concrete compound beam provided by the invention employs basalt fiber material, further feature as above-mentioned basalt fibre board concrete compound beam is similar to reinforced concrete beam of the prior art: can cast-in-place, also can be prefabricated in workshop, then Assembling; Can be solid beam, also can be hollow beam; Can be plate ellbeam, rib ellbeam or box-girder; Can be girder, bent cap or binder; May be used for simply supported girder bridge, continuous girder bridge or cantilever glider bridge; Road bridge, railway bridge, road rail bridge, pedestrian bridge, aqueduct bridge or overpass bridge etc. can be applied to.
Make the method for basalt fibre plate normally: basalt fibre, bonding agent, other additive are mixed with water, after overmolding, drying, obtain basalt fibre plate.Obtain basalt fibre plate to this legal system and carry out microexamination, can see, tiny basalt fibre presents independent individuality, is evenly dispersed in basalt fibre plate, does not connect each other.Basalt fibre, as the reinforcing material of basalt fibre plate, does not connect each other, is just evenly dispersed in matrix, although can improve the functional performance of basalt fibre plate, degree is not high.For this reason, the present invention adopts the preparation method of another basalt fibre plate, and it comprises following steps:
1) basalt fibre is processed into basalt fibre yarn, described basalt yam is processed into there is cancellated basalt fibre tabular fabric;
2) at mould inner surface spraying release agent, then by step 1) obtain basalt fibre tabular fabric and be placed in mould, filled thermoset toner in described basalt fibre tabular fabric;
3) open the heating function of mould, thermosetting powders is fused into thermosetting resin liquid, then held for some time, make thermosetting resin liquid fully infiltrate basalt fibre tabular fabric;
4) heating function of closing molding, makes thermosetting resin liquid cools solidify;
5) remove mould, obtain basalt fibre plate.
The present invention adopts special basalt fibre plate preparation method: first basalt fibre is processed into basalt fibre yarn, again basalt yam is processed into and there is cancellated basalt fibre tabular fabric, utilize thermosetting powders to be heating and curing, obtain basalt fibre plate.Although raw material is still basalt fibre, but before making sheet, pretreatment is carried out to it, by loose, the basalt fibre do not connected each other is processed into basalt fibre yarn, again basalt fibre yarn is processed into tool effigurate, three-dimensional, multilayer cancellated basalt fibre tabular fabric, improve between basalt fibre and be interconnected, make basalt fibre tabular fabric can serve as the skeleton of basalt fibre plate better, thus improve the mechanical mechanics property of basalt fibre plate, especially intensity, be more suitable for using as structural panel, the present invention is first by solid-state, pulverous thermosetting resin is filled in the hollow grid of basalt fibre tabular fabric, pulverous thermosetting resin can enter tiny grid, all grids can be filled up, make liquid thermosetting resin fully can infiltrate basalt fibre tabular fabric, thermosetting resin after hardening, due to intermolecular cross-linking, form net structure, therefore rigidity is large, hardness is high, heatproof is high, nonflammable, product size good stability, the premium properties of thermosetting resin with basalt fibre tabular fabric is combined, significantly improve the functional performance of basalt fibre plate.
In fibre, the diameter of fiber has important impact to the mechanical mechanics property of fibre, chemical property, physical property and high temperature stability performance, and in general, diameter is less, and the properties of fibre is better, more balanced between properties.For improving the combination property of basalt fibre plate, the present invention uses ultra-fine basalt fiber as raw material in a large number, in above-mentioned basalt fibre, diameter is the mass percent of the basalt fibre of 0.6 μm ~ 0.9 μm is 60% ~ 70%, and diameter is the mass percent of the basalt fibre of 3 μm ~ 5 μm is 30% ~ 40%.
In order to make above-mentioned basalt fibre tabular fabric serve as the skeleton of basalt fibre plate better, in the present invention, the thickness of basalt fibre tabular fabric is 1.5cm ~ 3cm, is preferably 1.8cm ~ 2.5cm; Wherein the diameter of grid is 80 μm ~ 120 μm, is preferably 90 μm ~ 110 μm.
At mould inner surface spraying 2 ~ 3 layers of release agent, be convenient to operation below and carry out basalt fibre plate and be separated with the demoulding of mould, release agent is preferably siliceous release agent, is more preferably silicone oil.Release agent is commercial goods.
Thermosetting powders is epoxy resin or phenolic resins.For making thermosetting powders fully fill netted basalt fibre tabular fabric, answer the granule size of conservative control thermosetting powders, in the present invention, the granularity of the thermosetting powders of mass percent 70% ~ 80% is more than or equal to 325 orders.Thermosetting powders is commercial goods.
In the present invention, mould has two functions, and one is heating function, and thermosetting powders heat fused is become liquid; Two is functional dies, in heating, insulation and cooling curing process, serves as the mould of basalt fibre tabular fabric and thermosetting resin liquid.For functional die, above-mentioned mould has a bottom surface and four sides, surrounds the casing of a top-open.When making basalt fibre plate, basalt fibre tabular fabric is laid in and sprays in the mould of release agent, then toward filled thermoset toner in basalt fibre tabular fabric.For heating function, can only be heated by the bottom surface of mould, can by 2 of mould or whole side heat, jointly can also be heated by bottom surface and whole side, mode of heating can be electrolysis heat, also can be thermal source indirect heating.
In one embodiment of the invention, the present invention preferably adopts in bottom surface thermal source indirect heating, mould comprises heating cabinet and is arranged at 4 pieces of side panels on heating cabinet, 4 pieces of side panels are interconnected the casing forming a top-open with heating cabinet, 4 sides of heating cabinet and the equal Jacket thickness in outside of bottom surface are the heat-preservation cotton of 50mm ~ 80mm, heating cabinet is provided with the oil-in that conduction oil is flowed into and the oil-out that conduction oil is reserved, oil-in is communicated with heat conduction oil sump by oil pump, and oil-out is communicated with heat conduction oil sump by pipeline.
Conduction oil flows in the cavity of heating cabinet as thermal source, transfer heat to thermosetting powders, conduction oil is stored in heat conduction oil sump, the temperature of conduction oil is kept by heat conduction oil sump, conduction oil is squeezed into mould from oil-in by oil pump, conduction oil flows back to heat conduction oil sump through oil-out, thus completes a circulation.The equal Jacket thickness in 4 sides and bottom surface of heating cabinet is the heat-preservation cotton of 50mm ~ 80mm, plays store heat, reduces the effect of thermal losses.
In the present invention, guarantee that thermosetting powders can be fused into liquid by the temperature of conduction oil, and can be incubated thermosetting resin liquid, holding temperature is 220 DEG C ~ 260 DEG C, and temperature retention time is 20min ~ 40min.
After insulation terminates, stop providing conduction oil to heating cabinet, make the high temperature heat conductive oil backflow heat conduction oil sump in heating cabinet, thermosetting resin liquid nature cooling curing, obtains basalt fibre plate.
In order to accelerate the cooling velocity of thermosetting resin liquid, the present invention, after insulation terminates, provides normal temperature or the conduction oil lower than normal temperature to heating cabinet, takes away the heat of thermosetting resin liquid with the conduction oil of low temperature, quick cooling curing thermosetting resin liquid.For this reason, in the present invention, heat conduction oil sump comprises thermal conductance deep fat pond and cold heat conduction oil sump, and oil pump is communicated with cold heat conduction oil sump with thermal conductance deep fat pond by three way cock, and oil-out is communicated with cold heat conduction oil sump with thermal conductance deep fat pond by three way cock.When needs heat, by oil pump, the Heat-transfer Oil Pump of the high temperature in thermal conductance deep fat pond is delivered to heating cabinet, heat fused thermosetting powders; When cooling is needed, by oil pump, the Heat-transfer Oil Pump of the low temperature in cold heat conduction oil sump is delivered to heating cabinet, rapid cooling thermal thermosetting resin liquid, thus decrease the molding time of basalt fibre plate, improve the production efficiency of basalt fibre plate.
Then, basalt fibre plate is fixedly connected with many vertical basalt fibre muscle vertical with basalt fibre plate.The present invention preferably adopts the basalt fiber cloth being impregnated with thermosetting resin liquid to be connected with basalt fibre plate by vertical basalt fibre muscle, and when after the solidification of thermosetting resin liquid cools, basalt fibre muscle is fixed on basalt fibre plate the most at last.
Then, above-mentioned obtained basalt fibre plate is fixed, many parallel basalt fibre muscle parallel with basalt fibre plate are fixedly connected with many vertical basalt fibre muscle and form basalt fibre muscle cage.The present invention preferably adopts the basalt fiber cloth being impregnated with thermosetting resin liquid to be connected with horizontal basalt fibre muscle by vertical basalt fibre muscle, when after the solidification of thermosetting resin liquid cools, and final formation basalt fibre muscle cage.Above-mentioned thermosetting resin liquid is one or more in unsaturated polyester resin, epoxy resin, phenolic resins and epoxy resin
In the present invention, preferably, the preparation method of basalt fibre muscle is from the preparation method of above-mentioned basalt fibre plate except mould is different, and all the other are identical.
Then, with above-mentioned basalt fibre plate for soffit formwork, installation side template and top template form the cavity holding above-mentioned basalt fibre muscle cage, then at above-mentioned side template and top template inner surface smearing release agent, be convenient to operation below carry out basalt fibre board concrete compound beam and be separated with the demoulding of template, release agent is preferably siliceous release agent, is more preferably silicone oil.Release agent is commercial goods.
Then, toward concreting in above-mentioned cavity.In order to play the premium properties of basalt fibre further, improve functional performance and the application life of basalt fibre board concrete beam, containing the short yarn cutting of basalt fibre in concrete of the present invention, the length of the short yarn cutting of basalt fibre is 5mm ~ 20mm, in concrete, the percentage by weight of the short yarn cutting of basalt fibre is 5% ~ 20%, short for basalt fibre yarn cutting is reasonably mixed in concrete, can while reservation concrete crushing strength advantages of higher, greatly increase concrete tension, shock resistance, wear-resisting, corrosion resistant and the performance such as high temperature resistant, improve concrete application life.The present invention is on the basis of performance and used life of improving basalt fibre board concrete beam framework, improve the concrete performance and used life of matrix material further, the two combines, thus improves functional performance and the application life of reinforced concrete beam on the whole.
Then the above-mentioned concrete of maintenance, finally removes side template and top template, obtains basalt fibre board concrete compound beam.
The present invention also provides a kind of beam bridge, comprises girder, and girder is the basalt fibre board concrete compound beam described in such scheme or the basalt fibre board concrete compound beam prepared by such scheme.
The raw material that the present invention does not elaborate, method and device etc. are prior art.
In order to understand the present invention further, be described in detail to basalt fibre board concrete compound beam provided by the invention and preparation method thereof below in conjunction with embodiment, protection scope of the present invention is not limited by the following examples.
Embodiment 1
1) to control diameter in raw material be the mass percent of the basalt fibre of 0.6 μm ~ 0.9 μm is 60%, and diameter is the mass percent of the basalt fibre of 3 μm ~ 5 μm is 40%.Then, basalt fibre is processed into basalt fibre yarn, is processed into by basalt yam and has cancellated basalt fibre tabular fabric, the thickness controlling basalt fibre tabular fabric is 1.5cm, and wherein the diameter of grid is 80 μm.
2) mould comprises heating cabinet and is arranged at 4 pieces of side panels on heating cabinet, 4 pieces of side panels are interconnected the casing forming a top-open with heating cabinet, 4 sides of heating cabinet and the equal Jacket thickness in outside of bottom surface are the heat-preservation cotton of 50mm, heating cabinet is provided with oil-in and oil-out, oil-in is communicated with cold heat conduction oil sump with thermal conductance deep fat pond by oil pump, and oil-out is communicated with cold heat conduction oil sump with thermal conductance deep fat pond by pipeline.At mould inner surface spraying silicone oil.Then by step 1) obtain basalt fibre tabular fabric and be placed in mould.Then toward filling epoxy resin powder in basalt fibre tabular fabric, wherein the granularity of the epoxy powder of mass percent 70% is more than or equal to 325 orders.
3) by oil pump, the Heat-transfer Oil Pump of the high temperature in thermal conductance deep fat pond is delivered to heating cabinet, heat fused epoxy powder, is incubated epoxy resin liquid, and holding temperature is 220 DEG C, and temperature retention time is 20min.
4) after insulation terminates, make high temperature heat conductive oil in heating cabinet by pipeline backflow thermal conductance deep fat pond, by oil pump, the Heat-transfer Oil Pump of the low temperature in cold heat conduction oil sump is delivered to heating cabinet, quick cooling curing epoxy resin liquid, then remove mould, obtain basalt fibre plate.
Basalt fibre plate is obtained to the present embodiment and carries out Performance Detection, the results are shown in Table 1.
5) above-mentioned obtained basalt fibre plate is fixed, basalt fibre plate is fixedly connected with many vertical basalt fibre muscle vertical with basalt fibre plate, many parallel basalt fibre muscle parallel with basalt fibre plate is fixedly connected with many vertical basalt fibre muscle and forms basalt fibre muscle cage.
6) with above-mentioned basalt fibre plate for soffit formwork, installation side template and top template form the cavity holding above-mentioned basalt fibre muscle cage, then smear silicone oil at above-mentioned side template and top template inner surface.
7) toward concreting in above-mentioned cavity, containing the short yarn cutting of basalt fibre in concrete, the length of the short yarn cutting of basalt fibre is 5mm, and in concrete, the percentage by weight of the short yarn cutting of basalt fibre is 5%.
8) curing concrete, finally removes side template and top template, obtains plate shape basalt fibre board concrete compound beam.
Embodiment 2
1) to control diameter in raw material be the mass percent of the basalt fibre of 0.6 μm ~ 0.9 μm is 65%, and diameter is the mass percent of the basalt fibre of 3 μm ~ 5 μm is 35%.Then, basalt fibre is processed into basalt fibre yarn, is processed into by basalt yam and has cancellated basalt fibre tabular fabric, the thickness controlling basalt fibre tabular fabric is 2cm, and wherein the diameter of grid is 100 μm.
2) mould comprises heating cabinet and is arranged at 4 pieces of side panels on heating cabinet, 4 pieces of side panels are interconnected the casing forming a top-open with heating cabinet, 4 sides of heating cabinet and the equal Jacket thickness in outside of bottom surface are the heat-preservation cotton of 65mm, heating cabinet is provided with oil-in and oil-out, oil-in is communicated with cold heat conduction oil sump with thermal conductance deep fat pond by oil pump, and oil-out is communicated with cold heat conduction oil sump with thermal conductance deep fat pond by pipeline.At mould inner surface spraying silicone oil.Then by step 1) obtain basalt fibre tabular fabric and be placed in mould.Then toward filling epoxy resin powder in basalt fibre tabular fabric, wherein the granularity of the epoxy powder of mass percent 75% is more than or equal to 325 orders.
3) by oil pump, the Heat-transfer Oil Pump of the high temperature in thermal conductance deep fat pond is delivered to heating cabinet, heat fused epoxy powder, is incubated epoxy resin liquid, and holding temperature is 240 DEG C, and temperature retention time is 30min.
4) after insulation terminates, make high temperature heat conductive oil in heating cabinet by pipeline backflow thermal conductance deep fat pond, by oil pump, the Heat-transfer Oil Pump of the low temperature in cold heat conduction oil sump is delivered to heating cabinet, quick cooling curing epoxy resin liquid, then remove mould, obtain basalt fibre plate.
Basalt fibre plate is obtained to the present embodiment and carries out Performance Detection, the results are shown in Table 1.
5) above-mentioned obtained basalt fibre plate is fixed, basalt fibre plate is fixedly connected with many vertical basalt fibre muscle vertical with basalt fibre plate, many parallel basalt fibre muscle parallel with basalt fibre plate is fixedly connected with many vertical basalt fibre muscle and forms basalt fibre muscle cage.
6) with above-mentioned basalt fibre plate for soffit formwork, installation side template and top template form the cavity holding above-mentioned basalt fibre muscle cage, then smear silicone oil at above-mentioned side template and top template inner surface.
7) toward concreting in above-mentioned cavity, containing the short yarn cutting of basalt fibre in concrete, the length of the short yarn cutting of basalt fibre is 10mm, the percentage by weight 10% of the short yarn cutting of basalt fibre in concrete.
8) curing concrete, finally removes side template and top template, obtains template basalt fibre board concrete compound beam.
Embodiment 3
1) to control diameter in raw material be the mass percent of the basalt fibre of 0.6 μm ~ 0.9 μm is 70%, and diameter is the mass percent of the basalt fibre of 3 μm ~ 5 μm is 30%.Then, basalt fibre is processed into basalt fibre yarn, is processed into by basalt yam and has cancellated basalt fibre tabular fabric, the thickness controlling basalt fibre tabular fabric is 3cm, and wherein the diameter of grid is 120 μm.
2) mould comprises heating cabinet and is arranged at 4 pieces of side panels on heating cabinet, 4 pieces of side panels are interconnected the casing forming a top-open with heating cabinet, 4 sides of heating cabinet and the equal Jacket thickness in outside of bottom surface are the heat-preservation cotton of 80mm, heating cabinet is provided with oil-in and oil-out, oil-in is communicated with cold heat conduction oil sump with thermal conductance deep fat pond by oil pump, and oil-out is communicated with cold heat conduction oil sump with thermal conductance deep fat pond by pipeline.At mould inner surface spraying silicone oil.Then by step 1) obtain basalt fibre tabular fabric and be placed in mould.Then toward filled phenolic resin powder in basalt fibre tabular fabric, wherein the granularity of the Phenolic resin powder of mass percent 80% is more than or equal to 325 orders.
3) by oil pump, the Heat-transfer Oil Pump of the high temperature in thermal conductance deep fat pond is delivered to heating cabinet, heat fused Phenolic resin powder, be incubated phenolic resins liquid, holding temperature is 260 DEG C, and temperature retention time is 40min.
4) after insulation terminates, make high temperature heat conductive oil in heating cabinet by pipeline backflow thermal conductance deep fat pond, by oil pump, the Heat-transfer Oil Pump of the low temperature in cold heat conduction oil sump is delivered to heating cabinet, quick cooling curing phenolic resins liquid, then remove mould, obtain basalt fibre plate.
Basalt fibre plate is obtained to the present embodiment and carries out Performance Detection, the results are shown in Table 1.
5) above-mentioned obtained basalt fibre plate is fixed, basalt fibre plate is fixedly connected with many vertical basalt fibre muscle vertical with basalt fibre plate, many parallel basalt fibre muscle parallel with basalt fibre plate is fixedly connected with many vertical basalt fibre muscle and forms basalt fibre muscle cage.
6) with above-mentioned basalt fibre plate for soffit formwork, installation side template and top template form the cavity holding above-mentioned basalt fibre muscle cage, then smear silicone oil at above-mentioned side template and top template inner surface.
7) toward concreting in above-mentioned cavity, containing the short yarn cutting of basalt fibre in concrete, the length of the short yarn cutting of basalt fibre is 20mm, and in concrete, the percentage by weight of the short yarn cutting of basalt fibre is 20%.
8) curing concrete, finally removes side template and top template, obtains box-shaped basalt fibre board concrete compound beam.
The performance data of the basalt fibre plate that table 1 various embodiments of the present invention obtain
| Embodiment | Density (g/cm 3) | Tensile strength (MPa) | Modulus of elasticity (GPa) | Bending strength (MPa) |
| Embodiment 1 | 1.93 | 1100 | 88 | 700 |
| Embodiment 2 | 1.97 | 1250 | 95 | 760 |
| Embodiment 3 | 1.95 | 1400 | 100 | 800 |
The explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.Multiple amendment for these embodiments is that apparent, defined herein General Principle can without departing from the spirit or scope of the present invention, realize in other embodiments for those skilled in the art.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the most wide region consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a basalt fibre board concrete compound beam, it is characterized in that, comprise basalt fibre plate from down to up and layer of concrete, described layer of concrete comprises basalt fibre muscle cage, and described basalt fibre muscle cage is fixedly connected with described basalt fibre plate.
2. a preparation method for basalt fibre board concrete compound beam, is characterized in that, comprises the following steps:
1) fixing basalt fibre plate, described basalt fibre plate is fixedly connected with many vertical basalt fibre muscle vertical with described basalt fibre plate, many parallel basalt fibre muscle parallel with described basalt fibre plate is fixedly connected with many described vertical basalt fibre muscle and forms basalt fibre muscle cage;
2) with described step 1) in basalt fibre plate be soffit formwork, installation side template and top template form the cavity holding described basalt fibre muscle cage, then at described side template and top template inner surface smearing release agent;
3) toward concreting in described cavity;
4) concrete described in maintenance;
5) remove described side template and top template, obtain basalt fibre board concrete compound beam.
3. preparation method according to claim 2, is characterized in that, described step 1) in the preparation method of basalt fibre plate be
1) basalt fibre is processed into basalt fibre yarn, described basalt yam is processed into there is cancellated basalt fibre tabular fabric;
2) at mould inner surface spraying release agent, then by step 1) obtain basalt fibre tabular fabric and be placed in mould, filled thermoset toner in described basalt fibre tabular fabric;
3) open the heating function of mould, thermosetting powders is fused into thermosetting resin liquid, then held for some time, make thermosetting resin liquid fully infiltrate basalt fibre tabular fabric;
4) heating function of closing molding, makes thermosetting resin liquid cools solidify;
5) remove mould, obtain basalt fibre plate.
4. preparation method according to claim 3, it is characterized in that, in described basalt fibre, diameter is the mass percent of the basalt fibre of 0.6 μm ~ 0.9 μm is 60% ~ 70%, and diameter is the mass percent of the basalt fibre of 3 μm ~ 5 μm is 30% ~ 40%.
5. preparation method according to claim 3, is characterized in that, the thickness of described basalt fibre tabular fabric is 1.5cm ~ 3cm, and wherein the diameter of grid is 80 μm ~ 120 μm.
6. preparation method according to claim 3, it is characterized in that, described mould comprises heating cabinet and is arranged at 4 pieces of side panels on described heating cabinet, 4 pieces of described side panels are interconnected the casing forming a top-open with described heating cabinet, described heating cabinet is provided with the oil-in that conduction oil is flowed into and the oil-out that conduction oil is flowed out, described oil-in is communicated with heat conduction oil sump by oil pump, described oil-out is communicated with heat conduction oil sump by pipeline, and 4 sides of described heating cabinet and the equal Jacket thickness in outside of bottom surface are the heat-preservation cotton of 50mm ~ 80mm.
7. preparation method according to claim 3, is characterized in that, the granularity of the described thermosetting powders of mass percent 70% ~ 80% is more than or equal to 325 orders, and described thermosetting resin is epoxy resin or phenolic resins.
8. preparation method according to claim 3, is characterized in that, the holding temperature of described thermosetting resin liquid is 220 DEG C ~ 260 DEG C, and temperature retention time is 20min ~ 40min.
9. preparation method according to claim 2, it is characterized in that, described step 1) in basalt fibre muscle be connected with described basalt fibre plate by the basalt fiber cloth being impregnated with thermosetting resin liquid, when after described thermosetting resin liquid curing, described basalt fibre muscle is fixed on described basalt fibre plate.
10. a beam bridge, comprises girder, it is characterized in that, the basalt fibre board concrete compound beam of described girder prepared by basalt fibre board concrete compound beam according to claim 1 or claim 2 ~ 9 any one.
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| CN108328980A (en) * | 2018-03-28 | 2018-07-27 | 首钢水城钢铁(集团)赛德建设有限公司 | Combined assembled wallboard of polystyrene and preparation method thereof |
| CN108489786A (en) * | 2018-06-13 | 2018-09-04 | 扬州大学 | A kind of chopped strand accelerated ageing sample producing device and its sample production method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| ITTV20010081A1 (en) * | 2001-06-18 | 2002-12-18 | Marcello Toncelli | PANEL COMPOSED OF A STRUCTURAL SHEET OF FIBER RESIN AND A DECORATIVE SHEET OF STONE OR CERAMIC MATERIAL |
| CN101328753B (en) * | 2008-07-24 | 2010-12-01 | 同济大学 | Fiber reinforcement composite material - concrete combination beam |
| DE102009003726B3 (en) * | 2009-04-02 | 2010-11-04 | Herold Kunststofftechnik | Betontübbing and method for producing the same |
| CN201873942U (en) * | 2010-11-20 | 2011-06-22 | 大连理工大学 | Fiber reinforce plastic-concrete composite beam |
| CN102560830A (en) * | 2012-02-18 | 2012-07-11 | 常州同维佳业新材料科技有限公司 | Stereoscopic mesh reinforcing fabric |
| CN103358568B (en) * | 2012-04-01 | 2015-09-02 | 上海尖端工程材料有限公司 | Three dimensional fabric strengthens the continuous-molding manufacture method of Hollow composite board |
| CN103273689B (en) * | 2013-06-08 | 2016-03-09 | 南京工业大学 | Concrete precast slab and shell structure with skin and composite material grating |
| CN203514635U (en) * | 2013-09-27 | 2014-04-02 | 辽宁工业大学 | FRP (fiber reinforced plastic) reinforcement fabric-embedded self-compacting recycled concrete deep beam |
| CN104032898B (en) * | 2014-06-03 | 2016-03-23 | 南京工业大学 | Three-dimensional fiber grid rib reinforced concrete structural member |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108328980A (en) * | 2018-03-28 | 2018-07-27 | 首钢水城钢铁(集团)赛德建设有限公司 | Combined assembled wallboard of polystyrene and preparation method thereof |
| CN108489786A (en) * | 2018-06-13 | 2018-09-04 | 扬州大学 | A kind of chopped strand accelerated ageing sample producing device and its sample production method |
| CN108489786B (en) * | 2018-06-13 | 2021-01-08 | 扬州大学 | Manufacturing method of tensile test piece |
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