CN101629441A - Combined type anchor padding plate and method for manufacturing same - Google Patents
Combined type anchor padding plate and method for manufacturing same Download PDFInfo
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- CN101629441A CN101629441A CN200810073693A CN200810073693A CN101629441A CN 101629441 A CN101629441 A CN 101629441A CN 200810073693 A CN200810073693 A CN 200810073693A CN 200810073693 A CN200810073693 A CN 200810073693A CN 101629441 A CN101629441 A CN 101629441A
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Abstract
The invention provides a combined type anchor padding plate, which is formed by a middle steel padding plate with a hollow central part and a super high strength concrete pressure-bearing piece coated on the lower part and/or the periphery of the middle steel padding plate; and the super high strength concrete pressure-bearing piece is a super high strength active powder concrete component of which the ultimate compressive strength is more than 120MPa and the ultimate breaking strength is more than 12MPa. The method for manufacturing the combined type anchor padding plate comprises the following steps: putting the manufactured middle steel padding plate used as an inner mould in a component forming mould for manufacturing the super high strength concrete pressure-bearing piece, adding the super high strength active powder concrete, manufacturing a moulding piece of the combined type anchor padding plate, which combines the middle steel padding plate and the super high strength concrete pressure-bearing piece, and performing working procedures of the moulding piece, such as natural curing and the like to manufacture the combined type anchor padding plate. The combined type anchor padding plate has the advantages of optimized structure, low steel consumption, low cost, smaller stress under the anchor, more uniform distribution of the stress under the anchor, more convenient dense casting of concrete under the anchor and more convenient field construction and laying of auxiliary reinforcements.
Description
Technical field:
The present invention relates to a kind ofly higher concentrated stress be transmitted and is distributed to its compression strength value reliably, particularly a kind ofly can and be distributed to anchor plate that goes in the concrete anchoring district and preparation method thereof the concentrated force transmission of ground tackle with respect to the bearing plate in the low concrete building structures more than 3 times of steel and iron parts.
Background technology:
Concrete structure is made up of parts such as anchoring piece, anchor plate and stiffeners with ground tackle, anchoring piece 4 is lived presstressed reinforcing steel 3 anchorings, anchor plate 8 and reinforcement spiral reinforcement 6 then are embedded in the concrete seven (referring to Fig. 9, form clip type anchoring piece 4 by intermediate plate 41, anchor slab 42 among the figure, its anchoring piece also can be the anchoring piece of other types), the concentrated stress that anchoring piece passes over is disperseed, make it to be delivered in the concrete comparatively equably to go.Because often being delivered to, this concentrated stress surpasses 200MPa on the anchor plate, and concrete compressive strength generally the highest 60MPa of having only, tensile strength are the highest has only 6MPa, so, be subjected to excessive stresses and ftracture, destroy for fear of concrete, the size of anchor plate can not be too little, and enough surface area dispersive stresses be arranged.At present, domestic anchor plate is that whole ironcasting or steel plate are made, and along with constantly riseing of price of steel product, its manufacturing cost is also more and more high.Therefore, urgently wish new technical scheme design bearing plate, substitute or the alternative steel of part, reach the purpose that reduces production costs by new cheap material.
Along with development of technology, concrete material can stably reach more than the 100MPa under factory's curing condition by optimization formula, and the highest even can reach 800MPa according to external report, the intensity with steel is suitable basically.Its cost is by weight less than half of steel, by volume then less than 1/4 of steel, so, this super high strength concrete and steel and iron parts is compound, may develop the lower bearing plate of cost fully.
Summary of the invention:
The object of the present invention is to provide a kind of product structure optimization, ferrous materials consumption less, cost is low, stress under anchorage is littler, the uniform combined type anchor padding plate that more becomes distributes, to solve existing anchor plate consumption problem that ferrous materials is many, cost of production is high, simultaneously, the component of the RPC that the super high strength concrete pressure part that constitutes this combined type anchor padding plate adopted and the preparation method of combined type anchor padding plate are also provided.
The technical scheme that solves the problems of the technologies described above is: a kind of combined type anchor padding plate, comprise the bearing plate of being with centre bore, described bearing plate be by core be the middle iron and steel backing plate of hollow and be coated in the middle of the combined type high-strength mortar bearing plate that constitutes of the super high strength concrete pressure part of iron and steel backing plate bottom or periphery or bottom and periphery thereof.
Further technical scheme of the present invention is: its high-strength mortar concrete pressure part that is coated on the middle iron and steel backing plate bottom of core or periphery or bottom and periphery thereof is ultimate compressive strength＞120MPa, anti-folding ultimate strength is greater than the ultrahigh-strength active powder concrete member of 12MPa, this ultrahigh-strength active powder concrete member is the member that is made into by the ultrahigh-strength active powder concrete that following component material is made, and each constituent content is calculated as with mass fraction:
1000 parts of portland cements, 600～1400 parts of quartz sands,
90～400 parts of silicon ashes, 100～400 parts of silicon powders,
100～300 parts of quartz powders, 10～350 parts of high-strength steel fibers,
15～30 parts of high efficiency water reducing agents, 250～320 parts in water,
60～120 parts of AEA expansion agents, 0～2 part of defoamer,
0～15 part of latex powder, 0～10 part on polyester fiber.
Another technical scheme of the present invention is: a kind of preparation method of combined type anchor padding plate, it is earlier middle iron and steel backing plate to be made, then it is put into the component molding mold of making the super high strength concrete pressure part as internal mold, add the ultrahigh-strength active powder concrete of making, iron and steel backing plate and the compound combined type anchor padding plate molding of super high strength concrete pressure part in the middle of making are made the combined type anchor padding plate finished product with the combined type anchor padding plate molding again after natural curing or natural curing and hot water, high temperature maintenance operation.
Its basic step comprises:
A, prefabricated middle iron and steel backing plate;
B, making ultrahigh-strength active powder concrete:
1. get the raw materials ready: as required, get the raw materials ready by the component ratio of following ultrahigh-strength active powder concrete,
2. ash, water mix: water and above-mentioned each component except that steel fibre are poured in the mixer, stirred to pasty state,
3. add steel fibre: in mixer, add the high-strength steel fiber, stir and made ultrahigh-strength active powder concrete in 4～6 minutes;
C, making combined type anchor padding plate molding:
Middle iron and steel backing plate is put into the component molding mold of making the super high strength concrete pressure part as internal mold, add the ultrahigh-strength active powder concrete that the B step is made, iron and steel backing plate and the compound combined type anchor padding plate molding of super high strength concrete pressure part in the middle of making;
D, natural curing: the combined type anchor padding plate molding that the C step is made under 5～38 ℃ of conditions maintenance after 20～26 hours the demoulding make the combined type anchor padding plate finished product;
Described B, make ultrahigh-strength active powder concrete 1. in the material preparation step, each component ratio is calculated as with mass fraction:
1000 parts of portland cements, 600～1400 parts of quartz sands,
90～400 parts of silicon ashes, 100～400 parts of silicon powders,
100～300 parts of quartz powders, 10～350 parts of high-strength steel fibers,
15～30 parts of high efficiency water reducing agents, 250～320 parts in water,
60～120 parts of AEA expansion agents, 0～2 part of defoamer,
0～15 part of latex powder, 0～10 part on polyester fiber.
The principal character of combined type anchor padding plate of the present invention is:
1, because combined type anchor padding plate of the present invention is to be that middle the iron and steel backing plate of hollow and the super high strength concrete pressure part that is coated on centre iron and steel backing plate bottom and periphery thereof constitute by core, be equivalent between iron and steel backing plate and concrete that iron and steel is made, be provided with a transition anchorage zone of making by super high strength concrete, because the existence of this transition anchorage zone, enlarged concrete lifting surface area, so the size of middle iron and steel backing plate can be done smallerly.
2, the super high strength concrete pressure part of combined type anchor padding plate of the present invention is to adopt the ultrahigh-strength active powder concrete member, and its preparation method is special, has higher rupture strength and compressive strength.
Thereby combined type anchor padding plate of the present invention and preparation method thereof has following beneficial effect:
One, the combined type anchor padding plate stress under anchorage littler, distribute and more to become even:
Because combined type anchor padding plate of the present invention is by middle iron and steel backing plate and is coated on the outer super high strength concrete pressure part combination pressure-bearing of middle iron and steel backing plate, its underpart and peripheral high-strength mortar thereof play transitional function, pressure after partly being delivered to the super high strength concrete pressure part, steel and iron parts is disperseed away, make the stress in ordinary concrete member anchoring district under the anchor littler, distribute and more become evenly, further improved the degree of safety of concrete component.
Two, cost advantage is obvious:
Analyze through measuring and calculating, when super high strength concrete compressive strength reaches more than the 120MPa, rupture strength reaches 12MPa when above, by the reasonably optimizing dimensional parameters, the cost that then adopting super high strength concrete is increased can be wanted much less than the cost that reduces the steel and iron parts backing plate, and produced compound anchor plate possesses bigger cost advantage.
After combined type anchor padding plate material of the present invention becomes most of super high strength concrete by full cast iron, because the super high strength concrete cost is more much lower than steel, so greatly reduce manufacturing cost, cost than full forged iron anchor backing plate has on average reduced more than 15%, to consume 1.5 ten thousand tons of calculating of steel every year, then can save steel more than 2250 tons, have tangible economic benefit.
Three, overall structure is more optimized, under the anchor of being more convenient for concrete casting closely knit, also be more conducive to the laying of site operation and auxiliary reinforcement.
Four, the super high strength concrete pressure part of combined type anchor padding plate of the present invention has higher rupture strength and compressive strength, rupture strength is generally 30～100MPa, compressive strength reaches 180～500MPa, have good impact resilience, abrasion resistance and durability, cracking resistance, satisfy needs fully as pressure-bearing.
Its main cause is:
1, in the ultrahigh-strength active powder concrete component of the super high strength concrete pressure part of making combined type anchor padding plate of the present invention, added the steel fibre of q.s, this steel fibre is the stirring by mixer in the preparation process of ultrahigh-strength active powder concrete, can in concrete, form three-dimensional net structure, improve the anti-folding and the compressive strength of material greatly; Secondly, increased in the technology of super high strength concrete pressure part preparation method of the present invention molding has been moved to 6～8 hours high temperature maintaining process of maintenance in 200～300 ℃ of baking ovens, make that the active component reaction is more abundant in the RPC, so the bearing plate bending and compressive strength is higher; Make in the ultrahigh-strength active powder concrete component of super high strength concrete pressure part of the present invention, the usage ratio of suitable water, steel fibre, sand, cement, silicon ash and silicon powder all plays a significantly greater role to resistance to compression, the rupture strength that improves the super high strength concrete pressure part.
2, by adding 800～1500 order super-fine silicon micro-powders, make the microstructure of the ultrahigh-strength active powder concrete of making super high strength concrete pressure part of the present invention more closely knit, thereby strengthen the durability and the mechanical property of pressure part.
3, the super high strength concrete pressure part of combined type anchor padding plate of the present invention has good impact resilience, abrasion resistance and durability, cracking resistance, has good workability.
Owing to also be added with components such as AEA expansion agent, latex powder, polyester fiber in the ultrahigh-strength active powder concrete of making super high strength concrete pressure part of the present invention, they are respectively to improving the pore structure of RPC, improve its compactness, improve adhesion stress, cohesive strength, reduce water imbibition, reduce modulus of elasticity, strengthen rupture strength, impact resilience, abrasion resistance, durability and crack resistance and work, and can improve the workability of RPC.
4, super high strength concrete pressure part stable performance: since the acting in conjunction of making each component in the ultrahigh-strength active powder concrete of super high strength concrete pressure part of combined type anchor padding plate of the present invention with and manufacture method on science, there is not bending and compressive strength retraction phenomenon in ultrahigh-strength active powder concrete of the present invention, and its anti-folding and anti-pressing was slow growth by force in the 30 day length of time.Particularly the later stage is passed through the member of high temperature maintenance again, and its compressive strength can reach 180～500MPa; Rupture strength 30～100MPa.
Below in conjunction with embodiment the technical characterictic of a kind of combined type anchor padding plate combined type anchor padding plate of the present invention and preparation method thereof is further described.
Description of drawings:
Fig. 1～Fig. 3: embodiment one described combined type anchor padding plate structural representation:
Fig. 1-master looks sectional view (the tubaeform through hole of cylindrical steel backing plate band), Fig. 2-super high strength concrete pressure part structure,
Fig. 3-with the cylindrical steel backing plate of straight shape through hole;
Fig. 4～Fig. 5: embodiment two described combined type anchor padding plate structural representations:
Fig. 4-master looks sectional view, Fig. 5-vertical view;
Fig. 6～Fig. 7: embodiment three described combined type anchor padding plate structural representations (the main sectional view of looking);
Fig. 8: the user mode reference diagram of combined type anchor padding plate of the present invention;
Fig. 9: a kind of user mode reference diagram of all steel anchor backing plate (anchoring piece is the clip type anchor).
Among Fig. 1～Fig. 3:
Iron and steel backing plate, the tubaeform through hole of 111-, the straight shape through hole of 112-in the middle of the oblate cylindricality of 11-, 21-disc super high strength concrete pressure part, 211-stairstepping through hole, 212-annular iron and steel junction plate;
Among Fig. 4:
Iron and steel backing plate, 121-shallow grooves in the middle of 12-is discoid, the 122-grout hole,
22-is similar to discoid super high strength concrete pressure part;
Among Fig. 6～Fig. 7:
Iron and steel backing plate in the middle of the thin annular of 13-, shallow grooves in the middle of the 131-on the iron and steel backing plate, the super high strength concrete pressure part of 23-approximate circle plate-like, band centre bore, groove on the 231-concrete pressure part, 232-centre bore, 233-junction plate, the grouting duct that 241-iron bend pipe forms, 242-iron bend pipe, 243-straight iron tube grouting duct, 244-straight iron tube;
Among Fig. 8～Fig. 9:
The 3-presstressed reinforcing steel, 4-anchoring piece, 41-intermediate plate, 42-anchor slab, the 5-combined type anchor padding plate, 6-strengthens spiral bar,
The 7-concrete, 8-all steel anchor backing plate.
The specific embodiment:
Embodiment one:
A kind of combined type anchor padding plate, as Fig. 1～shown in Figure 3: the profile of this anchor plate is a collar plate shape, middle iron and steel backing plate for iron and steel backing plate 11 in the middle of the oblate cylindricality of middle tubaeform through hole 111 that is useful on the anchoring presstressed reinforcing steel or straight shape through hole 112 (referring to Fig. 1, Fig. 3), what be coated on the middle iron and steel backing plate of oblate cylindricality 11 peripheries is disc super high strength concrete pressure part 21 (referring to Fig. 2) of band stairstepping through hole 211 in it, oblate cylindrical steel backing plate 11 places fuse compound with it on the step of stairstepping through hole 211 of disc super high strength concrete pressure part 21, the other end of the stairstepping through hole of super high strength concrete pressure part 21 is tubaeform, and its bottom center has annular iron and steel junction plate 212.
Embodiment two:
A kind of combined type anchor padding plate, as Fig. 4～shown in Figure 5: the profile of this anchor plate is approximate discoid hollow structure, middle iron and steel backing plate is the cast iron or the steel-casting 12 of discoid, as to have grout hole 122 hollow, periphery is the shallow grooves on the middle iron and steel backing plate for iron and steel backing plate outer rim, approximate discoid super high strength concrete pressure part 22,121 in the middle of tightly being coated on.
Embodiment three:
A kind of combined type anchor padding plate, as Fig. 6～shown in Figure 7: the profile of this anchor plate is approximate discoid hollow structure, middle iron and steel backing plate is an iron and steel backing plate 13 in the middle of the thin annular of a band shallow grooves; Periphery is an approximate circle plate-like, the super high strength concrete pressure part 23 of band centre bore, should one groove 231 be arranged approximate discoid super high strength concrete pressure part 23 central upper portion, the grouting duct 241 (referring to Fig. 6) that is formed by the iron bend pipe is arranged on the disk, the top of this iron bend pipe 242 is connected with middle iron and steel backing plate 13, its underpart transverse opening is connected with the centre bore 232 of ultra-high strength mortar concrete pressure part 23, oblate billet 13 places on the groove 231 of super high strength concrete pressure part 23 central upper portion, and fuse with high-strength mortar concrete pressure part 23, its bottom center has annular iron and steel junction plate 233.
As a kind of conversion of the embodiment of the invention three, the grouting duct on the described concrete pressure part is by straight iron tube 244 and opens the grouting duct 243 (referring to Fig. 7) of the band bending that the cross-drilled hole that is connected on high-strength mortar concrete pressure part 23, with the centre bore 232 of high-strength mortar concrete pressure part 23 constitutes.
In the various embodiments of the present invention, the volume of described ultra-high strength mortar concrete pressure part 21,22,23 parts that are coated on iron and steel backing plate bottom in the middle of the core or periphery or bottom and periphery thereof is respectively greater than the volume of middle iron and steel backing plate 11,12,13 parts of its coating, as a kind of conversion of the present invention, the volume of described ultra-high strength mortar concrete pressure part part also can be equal to or less than the middle iron and steel backing plate in its coating, but in such cases, cost reduction amplitude is littler.
The various embodiments described above are the part of the preferred forms of combined type anchor padding plate of the present invention, its basic structure all for by core be the middle iron and steel backing plate of hollow and be coated in the middle of the combined type bearing plate that constitutes of the super high strength concrete pressure part of iron and steel backing plate bottom or periphery or bottom and periphery thereof, its grout hole can be opened on middle iron and steel backing plate, also can open on the super high strength concrete pressure part, generally constitute or make by iron threaded straight tube and super high strength concrete transverse tube by threaded iron bend pipe for opening grout hole on the super high strength concrete pressure part, iron bend pipe top or straight tube are connected with middle iron and steel backing plate; This kind combined type anchor padding plate 5 can also have multiple its profile global shape and the structure identical with existing anchor plate, all belongs to protection domain of the present invention, repeats no more herein.
Fig. 8 represents the user mode of embodiment two described a kind of combined type anchor padding plates, forms clip type anchoring piece 4 by intermediate plate 41, anchor slab 42 among the figure, and in actual the use, anchoring piece also can be the anchoring piece of other types.
In the various embodiments of the present invention, the described ultra-high strength mortar concrete pressure part the 21,22, the 23rd that is coated on the middle iron and steel backing plate bottom of core or periphery or bottom and periphery thereof, ultimate compressive strength＞120MPa, anti-folding ultimate strength is greater than the ultrahigh-strength active powder concrete member of 12MPa, this ultrahigh-strength active powder concrete member is the member that is made into by the ultrahigh-strength active powder concrete that following component material is made, and each constituent content is calculated as with mass fraction:
1000 parts of portland cements, 600～1400 parts of quartz sands,
90～400 parts of silicon ashes, 100～400 parts of silicon powders,
100～300 parts of quartz powders, 10～350 parts of high-strength steel fibers,
15～30 parts of high efficiency water reducing agents, 250～320 parts in water,
60～120 parts of AEA expansion agents, 0～2 part of defoamer,
0～15 part of latex powder, 0～10 part on polyester fiber.
In the technique scheme, described cement is the cement of 42.5 portland cements or other types, requires: the fineness 〉=310m of cement
2/ kg, 28 days rupture strength 〉=8MPa, 28 days compressive strength 〉=48MPa.
Described quartz sand is the clean quartz sand between 20 order to 100 orders.
Described silicon ash, its active SiO
2Content 〉=95%, average grain diameter 0.1 μ m helps the slight void between the filling concrete particle, promote closestpacking, improve the compactness of cement stone, the pozzolanic activity of its height has increased the volume of C-S-H gel in the cement stone, has reduced the quantity of portlandite and has made Ca (OH)
2The crystal refinement, thus the pore structure of slurry changed, improved mechanical properties of concrete, add the cohesiveness that the silicon ash can increase green concrete in addition.
Described silicon powder granularity is 800～1500 orders, it mixed in the cement concrete as admixture, and except the effect of the closestpacking that promotes cement stone, in high temperature maintenance (〉=200 ℃) process, some active SiO
2C that can be in cement
2S and C
3The Ca (OH) that the S aquation produces
2Reaction further forms the hydrated calcium silicate product, is filled in the hole of cement concrete, improves the compactness of cement concrete.
Described quartz powder granularity is 200～500 orders, becomes grading composition between the variable grain for RPC, and quartz powder is indispensable ingredient.
Described high-strength steel fiber is a kind of thin steel fibre, and its diameter is 0.1～1mm, and length is 3～30mm, tensile strength 〉=200MPa, and mixing of high-strength steel fiber can improve concrete rupture strength and compressive strength greatly.
Described high efficiency water reducing agent is a kind of polycarboxylate dehydragent, is the organic polymer electrolyte, belongs to the polymeric dispersant class, and outward appearance is a pale yellow powder, and its intrinsic content is 90～99%, water-reducing rate 〉=25%.
Described AEA expansion agent is a kind of concrete impervious anticracking type expansion agent.Its effect is to form dilatancy crystallization hydrate---entringite in concrete, making concrete produce appropriateness in early days expands, in concrete, set up the 0.2Mpa-0.7Mpa compressive pre-stress, the tensile stress that this compressive stress produces in the time of can roughly offsetting concrete shrinkage, and still keep the faint expansion impetus in the concrete middle and later periods, to compensate its shrinkage, the continuous fill concrete of while entringite crystalline solid internal clearance, improved the pore fluid of concrete structure, improve compactness, also reached the purpose of anti-permeation cracking-resistant.
Described latex powder is a kind of binary that is formed by vinylacetate and carboxylic ethylene carbonate-VeoVa or ethene or acrylate or the copolymer of ternary, the modified emulsion powder that obtains through spray-drying.It has good redispersible, again be dispersed into emulsion when contacting with water, and its chemical property and initial latex are identical, it is applied in the RPC, can improve its multiple performance, as: improve adhesion stress, cohesive strength, reduce water imbibition, reduce modulus of elasticity, strengthen rupture strength, impact resilience, abrasion resistance and durability, and can improve the workability of RPC.
Described polyester fiber is a kind of novel anticracking reinforcing material, it is with polyester (parylene's second diester, PET) be primary raw material, its outward appearance is handed over the poly-fascicular texture that forms for the plurality of fibers monofilament, the general polymer fibre fineness is big, intensity is high, the characteristics of easy dispersion except that having for polyester fiber, also have outstanding resistance to elevated temperatures, can be applicable to the enhancing anticracking of RPC.
Described defoamer is white in color Powdered, is a kind of non-ionic surface active agent of suitable dry-mixed cement mortar.Its hydrophilic group is the polar group of nonionic--hydroxyl and ether, therefore pH value and electrolytical influence that is not subjected to medium is stable high.This defoamer can carry out deaeration to the microvesicle that produces in constructional materials construction or production engineering, and makes product have splendid persistence and shear stability and gain in strength.
Embodiment four:
A kind of preparation method of combined type anchor padding plate, it is earlier middle iron and steel backing plate to be made, then it is put into the component molding mold of making the super high strength concrete pressure part as internal mold, add the ultrahigh-strength active powder concrete of making, iron and steel backing plate and the compound combined type anchor padding plate molding of super high strength concrete pressure part in the middle of making are made the combined type anchor padding plate finished product with the combined type anchor padding plate molding again after natural curing or natural curing and hot water, high temperature maintenance operation.
Its concrete steps are:
A, prefabricated middle iron and steel backing plate: according to the shape of the combined type anchor padding plate that will make, the shape of iron and steel backing plate in the middle of the decision adopts ironcasting or steel-casting to make middle iron and steel backing plate;
B, making ultrahigh-strength active powder concrete:
1. get the raw materials ready: get 1000 parts of 42.5 type portland cements, 1400 parts of 20～100 purpose quartz sands, SiO
2〉=95% 90 parts of silicon ashes, 300 parts of 1500 order silicon powders, 290 parts of 300 order quartz powders, 80 parts of high-strength steel fibers, 30 parts of high efficiency water reducing agents, 280 parts in water, 120 parts of AEA expansion agents;
2. ash, water mix: high efficiency water reducing agent and water are poured into to stir in the mixer simultaneously made it even in about 1 minute, just surplus material---materials such as cement, quartz sand, silicon ash, silicon powder, quartz powder, AEA expansion agent, defoamer are poured in the mixer, stir into a paste then;
3. add steel fibre: in mixer, add the high-strength steel fiber, stir and made ultrahigh-strength active powder concrete in 4～6 minutes;
C, making combined type anchor padding plate molding:
Middle iron and steel backing plate is put into the component molding mold of making the super high strength concrete pressure part as internal mold, add the ultrahigh-strength active powder concrete that the B step is made, iron and steel backing plate and the compound combined type anchor padding plate molding of super high strength concrete pressure part in the middle of making;
D, natural curing: the combined type anchor padding plate molding that the C step is made under 5～38 ℃ of conditions maintenance after 20～26 hours the demoulding make the combined type anchor padding plate finished product;
A kind of conversion as the embodiment of the invention, as required, an E, hot water, high temperature maintenance operation can increased: be about to place 80 ± 10 ℃ of hot water maintenances after 36～54 hours after D, the natural curing operation through the combined type anchor padding plate finished product behind the low temperature reservation, moved in 200～300 ℃ of baking ovens maintenance 6～8 hours, its taking-up is cooled to room temperature.Make that the active component reaction is more abundant in the RPC, so bending and compressive strength is higher.
As a kind of conversion of the embodiment of the invention four, each constituent content such as described cement, quartz sand, silicon ash, silicon powder, quartz powder, AEA expansion agent, defoamer can increase or reduce; Can also in component, add latex powder, to improve adhesion stress, the cohesive strength of ultrahigh-strength active powder concrete, reduce water imbibition, reduce modulus of elasticity, strengthen rupture strength, impact resilience, abrasion resistance and durability, and can improve the workability of RPC; Also can also in component, add polyester fiber, with the effect of anti-cracking of enhanced activity powder concrete.
Each component content is referring to subordinate list one " each constituent content list of the ultrahigh-strength active powder concrete of different proportioning types " data.
Claims (13)
1. combined type anchor padding plate, comprise the bearing plate of being with centre bore, it is characterized in that: described bearing plate be by core be the middle iron and steel backing plate of hollow and be coated in the middle of the combined type bearing plate that constitutes of the super high strength concrete pressure part of iron and steel backing plate bottom or periphery or bottom and periphery thereof.
2. combined type anchor padding plate according to claim 1, it is characterized in that: its high-strength mortar concrete pressure part that is coated on the middle iron and steel backing plate bottom of core or periphery or bottom and periphery thereof is ultimate compressive strength＞120MPa, anti-folding ultimate strength is greater than the ultrahigh-strength active powder concrete member of 12MPa, this ultrahigh-strength active powder concrete member is to be made into by the ultrahigh-strength active powder concrete that following component material is made, and each constituent content is calculated as with mass fraction:
1000 parts of portland cements, 600～1400 parts of quartz sands,
90～400 parts of silicon ashes, 100～400 parts of silicon powders,
100～300 parts of quartz powders, 10～350 parts of high-strength steel fibers,
15～30 parts of high efficiency water reducing agents, 250～320 parts in water,
60～120 parts of AEA expansion agents, 0～2 part of defoamer,
0～15 part of latex powder, 0～10 part on polyester fiber.
3. combined type anchor padding plate according to claim 2 is characterized in that: be coated on the volume of the volume of the middle iron and steel backing plate bottom of core or periphery or bottom and peripheral high-strength mortar concrete pressure part thereof more than or equal to iron and steel backing plate in the middle of the core.
4. according to claim 1,2 or 3 described combined type anchor padding plates, it is characterized in that: the profile of this anchor plate is a collar plate shape, middle iron and steel backing plate is the middle tubaeform through hole (111) of anchoring presstressed reinforcing steel or the oblate cylindrical steel iron chair (11) of straight shape through hole (112) of being useful on, what be coated on middle iron and steel backing plate (11) periphery of oblate cylindricality is collar plate shape super high strength concrete pressure part (21) of band stairstepping through hole (211) in it, oblate cylindrical steel iron chair (11) places fuse compound with it on the step of stairstepping through hole (211) of collar plate shape super high strength concrete pressure part (21), and the other end of stairstepping through hole (211) is tubaeform.
5. according to claim 1,2 or 3 described combined type anchor padding plates, it is characterized in that: the profile of this anchor plate is approximate discoid hollow structure, middle iron and steel backing plate is the cast iron or the steel-casting (12) of discoid, as to have grout hole (122) hollow, periphery for iron and steel backing plate outer rim in the middle of tightly being coated on, be similar to discoid super high strength concrete pressure part (22).
6. according to claim 1,2 or 3 described combined type anchor padding plates, it is characterized in that: the profile of this anchor plate is approximate discoid hollow structure, and middle iron and steel backing plate is the thin annular billet (13) of a band shallow grooves; Periphery is an approximate circle plate-like, the super high strength concrete pressure part (23) of band centre bore, should one groove (231) be arranged approximate discoid super high strength concrete pressure part (23) central upper portion, the grouting duct (241) that the band bending that is formed by threaded iron bend pipe is arranged on the disk, the top of this iron bend pipe (242) is connected with middle iron and steel backing plate (13), its underpart transverse opening is connected with the centre bore (232) of super high strength concrete pressure part (23), and thin annular billet (13) places on the groove (231) of super high strength concrete pressure part (23) central upper portion, and fuse with super high strength concrete pressure part (23).
7. according to claim 1,2 or 3 described combined type anchor padding plates, it is characterized in that: the profile of this anchor plate is approximate discoid hollow structure, and middle iron and steel backing plate is the thin annular billet (13) of a band shallow grooves; Periphery is an approximate circle plate-like, the super high strength concrete pressure part (23) of band centre bore, should one groove (231) be arranged approximate discoid super high strength concrete pressure part (23) central upper portion, have on the disk by threaded straight iron tube and opening on high-strength mortar concrete pressure part (23), the grouting duct (243) of the band bending that the cross-drilled hole that is connected with the centre bore (232) of high-strength mortar concrete pressure part (23) constitutes, the top of this straight iron tube (244) is connected with middle iron and steel backing plate (13), and thin annular billet (13) places on the groove (231) of super high strength concrete pressure part (23) central upper portion, and fuse with high-strength mortar concrete pressure part (23).
8. the preparation method of a combined type anchor padding plate as claimed in claim 1, it is characterized in that: it is earlier middle iron and steel backing plate to be made, then it is put into the component molding mold of making the super high strength concrete pressure part as internal mold, add the ultrahigh-strength active powder concrete of making, iron and steel backing plate and the compound combined type anchor padding plate molding of super high strength concrete pressure part in the middle of making are made the combined type anchor padding plate finished product with the combined type anchor padding plate molding again after natural curing or natural curing and hot water, high temperature maintenance operation.
9. the preparation method of combined type anchor padding plate as claimed in claim 8, it is characterized in that: the concrete steps of this preparation method are:
A, prefabricated middle iron and steel backing plate;
B, making ultrahigh-strength active powder concrete:
1. get the raw materials ready: as required, get the raw materials ready by the component ratio of following ultrahigh-strength active powder concrete,
2. ash, water mix: water and above-mentioned each component except that steel fibre are poured in the mixer, stirred to pasty state,
3. add steel fibre: in mixer, add the high-strength steel fiber, stir and made ultrahigh-strength active powder concrete in 4～6 minutes;
C, making combined type anchor padding plate molding:
Middle iron and steel backing plate is put into the component molding mold of making the super high strength concrete pressure part as internal mold, add the ultrahigh-strength active powder concrete that the B step is made, iron and steel backing plate and the compound combined type anchor padding plate molding of super high strength concrete pressure part in the middle of making;
D, natural curing: the combined type anchor padding plate molding that the C step is made under 5～38 ℃ of conditions maintenance after 20～26 hours the demoulding make the combined type anchor padding plate finished product;
Described B, make ultrahigh-strength active powder concrete 1. in the material preparation step, each component ratio is calculated as with mass fraction:
1000 parts of portland cements, 600～1400 parts of quartz sands,
90～400 parts of silicon ashes, 100～400 parts of silicon powders,
100～300 parts of quartz powders, 10～350 parts of high-strength steel fibers,
15～30 parts of high efficiency water reducing agents, 250～320 parts in water,
60～120 parts of AEA expansion agents, 0～2 part of defoamer,
0～15 part of latex powder, 0～10 part on polyester fiber.
10. the preparation method of combined type anchor padding plate as claimed in claim 9, it is characterized in that: in the concrete steps of this preparation method, also having a hot water, high temperature maintenance operation after D, the natural curing operation: be about to place 80 ± 10 ℃ of hot water maintenances after 36～54 hours through the combined type anchor padding plate finished product after the natural curing, moved in 200～300 ℃ of baking ovens maintenance 6～8 hours, its taking-up is cooled to room temperature.
11. the preparation method as claim 9 or 10 described combined type anchor padding plates is characterized in that: described B, make ultrahigh-strength active powder concrete 1. in the material preparation step, each component ratio is calculated as with mass fraction:
1000 parts of portland cements, 600～1400 parts of quartz sands,
90～400 parts of silicon ashes, 100～400 parts of silicon powders,
100～300 parts of quartz powders, 80～350 parts of high-strength steel fibers,
15～30 parts of high efficiency water reducing agents, 250～320 parts in water,
60～120 parts of AEA expansion agents, 1～15 part of latex powder,
0～2 part of defoamer.
12. the preparation method as claim 9 or 10 described combined type anchor padding plates is characterized in that: described B, make ultrahigh-strength active powder concrete 1. in the material preparation step, each component ratio is calculated as with mass fraction:
1000 parts of portland cements, 600～1400 parts of quartz sands,
90～400 parts of silicon ashes, 100～400 parts of silicon powders,
100～300 parts of quartz powders, 10～350 parts of high-strength steel fibers,
15～30 parts of high efficiency water reducing agents, 250～320 parts in water,
60～120 parts of AEA expansion agents, 1～10 part on polyester fiber,
0～2 part of defoamer.
13. the preparation method as claim 9 or 10 described combined type anchor padding plates is characterized in that: described B, make ultrahigh-strength active powder concrete 1. in the material preparation step, each component ratio is calculated as with mass fraction:
1000 parts of portland cements, 750～1400 parts of quartz sands,
90～300 parts of silicon ashes, 200～350 parts of silicon powders,
100～250 parts of quartz powders, 100～200 parts of high-strength steel fibers,
15～28 parts of high efficiency water reducing agents, 250～310 parts in water,
80～95 parts of AEA expansion agents, 2～15 parts of latex powder,
2～10 parts on polyester fiber, 0～1 part of defoamer.
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| CN2008100736931A CN101629441B (en) | 2008-07-18 | 2008-07-18 | Combined type anchor padding plate and method for manufacturing same |
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| CN2008100736931A CN101629441B (en) | 2008-07-18 | 2008-07-18 | Combined type anchor padding plate and method for manufacturing same |
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| CN101974960A (en) * | 2010-11-03 | 2011-02-16 | 杭州神列锻压件有限公司 | Pre-stressed anchor backing plate |
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| CN104690516A (en) * | 2015-03-20 | 2015-06-10 | 柳州市友健机械有限公司 | Processing method for flat type anchor plate |
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| CN106881566A (en) * | 2017-03-03 | 2017-06-23 | 马鞍山市兴隆铸造有限公司 | A kind of processing technology of anchor plate |
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| CN101974960A (en) * | 2010-11-03 | 2011-02-16 | 杭州神列锻压件有限公司 | Pre-stressed anchor backing plate |
| CN104097363A (en) * | 2014-07-31 | 2014-10-15 | 江苏爵格工业设备有限公司 | Novel antiknock fireproof plate and preparation method thereof |
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| CN104759844A (en) * | 2015-03-20 | 2015-07-08 | 柳州市友健机械有限公司 | Processing method of circular anchor bearing plate |
| CN106881566A (en) * | 2017-03-03 | 2017-06-23 | 马鞍山市兴隆铸造有限公司 | A kind of processing technology of anchor plate |
| CN107443015A (en) * | 2017-07-27 | 2017-12-08 | 柳州煜乾机械装备股份公司 | A kind of Flat shape anchor tie-plate preparation method |
| CN107685224A (en) * | 2017-08-24 | 2018-02-13 | 柳州市浩菱机械配件有限责任公司 | The manufacture method of anchor plate |
| CN108222375A (en) * | 2018-02-07 | 2018-06-29 | 柳州欧维姆机械股份有限公司 | Fill up heavier-duty anchor plate and preparation method thereof |
| CN108222375B (en) * | 2018-02-07 | 2023-08-01 | 柳州欧维姆机械股份有限公司 | Filling reinforced anchor backing plate and manufacturing method thereof |
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