CN1363008A - Compacted rolled fiber-reinforced concrete composition and method for producing pavement based on same - Google Patents
Compacted rolled fiber-reinforced concrete composition and method for producing pavement based on same Download PDFInfo
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- CN1363008A CN1363008A CN01800007.XA CN01800007A CN1363008A CN 1363008 A CN1363008 A CN 1363008A CN 01800007 A CN01800007 A CN 01800007A CN 1363008 A CN1363008 A CN 1363008A
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Abstract
The invention concerns a compacted rolled fibre-reinforced concrete composition and a method for making continuous pavements and industrial areas without joints, the metal fibres consisting of wires (10) with a diameter (d) of 0.38 to 15 mm, a total length of 19 to 80 mm, a length (<l, l'>) of the curved end parts (12) of 1.5 to 4 mm, a transverse offset (h, h') of at least 0.75 mm, an obtuse angle ( alpha , alpha ') between each gap portion (13) and the central part (11), an obtuse angle between each gap portion and end portion, and a minimum tensile strength of 900 n/mm<2>, said composition comprising, per cubic metre of concrete, 180 to 400 kg of hydraulic binder, 90 to 150 litres of water, and 25 to 60 kg of fibres, and not more than 1.8 wt. % of plasticizer and/or retarder admixture.
Description
Technical field
The present invention relates to fibre-reinforced roll-in concrete composition, and by the method on jointless continuous pavement of road of described composition production and ground, industrial occupancy.
Background technology
The roll-in concrete composition is different with conventional placing of concrete or vibrated concrete, because for similar mechanical performance, and the cement factor that they need lack and few water content.This lower water content can obtain enough supporting capacitys, so that with asphalt finisher this material is handled, makes it closely knit by vibrator and pneumatic tyre formula pudddler (pneumatic-tyred compactor), and is then open without delay current.The denseness of placing of concrete need be handled with conventional sliding shuttering or vibration scraper plate machine technology, and only after laying the time long enough, being generally at least 7 days, just can open current.
It is well-known inserting metallic fiber in above-mentioned two types conventional concrete.The metallic fiber that uses in industrialization is paved the way is the wire drawing fiber normally, generally is made up of the wire of 1mm diameter.The difference each other of various commercially available fibers is, the effective grappling type difference in concrete substrate.Also produced and have the fiber that is called the deformable grappling, for example hook-shaped fiber such as being sold with " Dramix " trade (brand) name by Bekaert, perhaps be a corrugated fibers, such as by the TrefilArbed sale.The company in back also produces a kind of fiber of selling with " Twincone " trade (brand) name, and wherein the end of each fiber has non deformable cone.This type of grappling is than hook-shaped or corrugated grappling rigidity is stronger, so this fiber is known as full grappling fiber.
After strengthening, can produce up to 2000m by the jolt ramming or the placing of concrete of routine with steel fibre
2The ground, no seam industrial occupancy (covered usually, and compare less various weathers and the variations in temperature of being exposed to pavement of road) of large scale scope, the performance of fiber can make seam be spaced from each other.Yet, up to now,, still fail these concrete are effective to produce continuous no seam pavement of road although this kind application can provide above-mentioned advantage.This is because have high relatively cement factor and water content in these concrete, causes hydraulic to shrink outer heat shrink.Uncontrollable its mechanical stress of fiber.Consequently, the concrete shrinkage phenomenon causes the crack more much bigger than the floor, and its width is greatly to the unacceptable degree that usually surpasses 1mm.Therefore, need in these jolt ramming fibrous concrete pavement of road, seam be set,, and reduce crack width so that contraction is confined to the part.This makes continuous pavement of road lose its economic advantages, and has slowed down the development of the fibrous concrete that is used for road on sizable degree.
Disclose a kind of conventional concrete among the US586500, its improvement has been higher than 80N/mm so that its compressive resistance is increased to the fine enhancing of steel
2In order to increase this intensity, on the one hand, this concrete contains the ultra-fine filling material with respect to the weight meter 5～10% of cement, as fumed silica, thereby makes it void space in can the filling concrete.On the other hand, because glassware for drinking water has the effect that reduces concrete strength, water/cement ratio remains on less than 0.4.Yet, according to this US patent, need to add a large amount of superplastisers, because this type of compound helps to compensate low water content, the existence of ultra-fine filling material should need a large amount of water even so.In the embodiment 2 and 3 of this US patent, the content height (440k/m of hydraulic binding agent (cement adds fine pozzolan)
3), this needs more a spot of cement opposite with the roll-in concrete, and the content of plasticizing agent (2.5%) is very high, however this kind content is unwanted in the roll-in concrete with similar water/cement ratio.
Known a kind of method of producing jointless durable fluid concrete pavement of road, this method is called as concrete (CRC) method of continuous enhancing, and the reinforcing bar that wherein will typically have a diameter from 16mm interconnects on the direction of crossing over whole road surface length in a continuous manner.In case reinforcing steel bar laying is good, then impose concrete, use sliding formwork type paver usually.But there is the technological deficiency that is difficult to carry out with expensive in the concrete that strengthens continuously.
Give the credit to the roll-in concrete with normal pouring, jolt ramming or extrude the benefit that concrete is compared to be provided, various fibre-reinforced tamped concretes have been proposed, wherein suitably regulate composition, and selection fiber, with continuous pavement of road or the industrial occupancy that obtains to make by concrete, its crack evenly distributes, and has limited width.
On the one hand, to the pavement of road of producing with the fibre-reinforced tamped concrete of full grappling " Twincone ", on the other hand, to the pavement of road of producing with the tamped concrete of corrugated fibers enhancing, compare with the part of the pavement of road of using the concrete production that strengthens continuously, the comparative studies result in viewed crack lists in the following Table I.
Table I
| The continuous concrete that strengthens | Tamped concrete with corrugated fibers | Tamped concrete with " Twincone " fiber | |
| Cross over the fracture number of 200m line length | ????60 | ????11 | ????15 |
| Average headway between crackle (m) | ????3 | ????20 | ????15 |
| Average crack width (mm) | ????1 | ????2.5 | ????1 |
| Cross over total crack width (mm) of 200m line length | ????60 | ????27.5 | ????15 |
As the object of reference of jointless continuous concrete, this concrete that strengthens continuously has tiny and the very near crack that is separated by.For with corrugated fibre-reinforced tamped concrete, the crack is spaced from each other, but broad.When using " Twincone " fiber, the fracture open total amount is than lacking 30% by observed under the corrugated fiber situation.For this research, seem to approach to strengthen continuously concrete performance with the fibre-reinforced concrete performance of full grappling, this fiber has the grappling performance higher than corrugated fiber.In the content of the research that constitutes the Table I basis, test shows is identical with the crack in the concrete that strengthens continuously in the variation with the crack in " Twincone " fibre-reinforced roll-in concrete.
And the Fig. 1 in the accompanying drawing has illustrated that two kinds of fibers all have the same diameter of 1mm to the result of the comparison pull of full grappling " Twincone " fiber A and deformable grappling fiber B.By this curve map as seen, using full grappling fiber is that the continuous pavement of road of the no seam of production is required, and these fibers can better limit crack width.
Therefore, define a kind of concrete composition that is used to produce no seam pavement of road among the patent application FR2684397, have definite composition, comprise non deformable grappling fiber, those as in European patent application EP 130191 and EP098825, describing.
In same crack,, make the hook flattening of described fiber in order to improve the grappling effect that is called as the cylindrical hook-shaped fiber of the first generation that is used for placing of concrete.This kind fiber is for example sold with the trade (brand) name of " Dramix FL45/50 ", and as the theme of patent application WO97/11239.
Therefore, present trend is towards using full grappling fiber or strong rigid anchorage fiber to produce the continuous pavement of road of no seam, and weak rigid anchorage fiber only is used in the vibrated concrete composition as corrugated or hook-shaped fiber, is used for road surface, manufacture district or sprayed mortar.
Summary of the invention
The purpose of this invention is to provide a kind of fibre-reinforced roll-in concrete composition, the width in crack is controlled in the crack that can limit existence simultaneously.
This purpose realizes by fiber reinforcement roll-in concrete composition of the present invention, said composition comprises and gathering materials, hydraulic binding agent and deformable grappling metallic fiber, it is characterized in that, this metallic fiber is made of the silk of substantial cylindrical, this has roughly straight longitudinal center's part, extend by the middle part of crooked end part in its each end, being shaped as of this crooked end part can prevent that two adjacent fibers from kinking mutually, and described fiber has:
-diameter is between 0.38～1.05mm;
-total length is between 19～80mm;
The length of-end sections is between 1.5～4mm;
The transversal displacement of-core and each end sections is at least 0.75mm;
(α, α ') is less than or equal to 160 ° at the obtuse angle of-each middle part and core;
Obtuse angle between-each middle part and the end; And
-minimum tensile strength is 900N/mm
2,
And described composition contains every m
3The hydraulic binding agent of concrete 180～400kg, every m
3Concrete 90～150 premium on currency, every m
3Concrete 25～60kg metallic fiber and 1.8% plasticizing agent and/or the retarding agent composite material that equal hydraulic binding agent weight at the most.
Among the present invention, hydraulic binding agent is made up of clinker, ground-slag, flyash, gypsum (ardealite or hard burnt plaster) and the superfine powder (fumed silica, pozzolan) of various ratios.
Be all beyond one's expectations the time be that the selected fiber that will be inserted in the roll-in concrete composition among the present invention has result preferably in restriction and control aspect the crack.With those for example above-mentioned qualification have crooked end and substantially on its whole length for columniform fiber, be used for the roll-in concrete composition, make that surprisingly just reaching balance between the crack width of restriction crack quantity and restriction existence becomes possibility.
Full grappling or strong rigid anchorage fiber have the high anchoring strength when crack width is up to 1mm.Yet if crack width is bigger, fibrous fracture and edge of crack suturing reduce fast.
Be up at crack width under the situation of 1mm, fiber according to the present invention provides the strong anchoring that in fact is equivalent to full grappling fiber effect.Yet this grappling performance can be kept under the very large crack width situation of scope up to 3～4mm.Compositions table according to the present invention reveals the ductility platform, inefficacy effect with by the observed 1mm of being higher than of full grappling fiber the time is compared very high safety is provided, for example under the situation of the local slump of road foundation, and crack width can surpass under the situation of 2mm.
Advantageously, its diameter of wire of making fiber is between 0.65～0.85mm, and total length/diameter ratio is 65～85.Specifically, the total length of fiber/diameter ratio is about 80.According to a special characteristic, each crooked end sections is formed by the straight line portion that links to each other with core by the described sloping portion with at least two elbows.
Advantageously, the fiber that uses among the present invention is that diameter is at least 1100N/mm as 0.7mm, total length as 60mm and tensile strength
2Fiber.When having identical weight in concrete, this fiber also has following advantage, compares as the fiber of 1mm with the diameter that routine is used, and has the fiber of its twice quantity.Owing to processing capacity bigger in the metal wire drawing process, thinner wire also has higher yield strength, and making it with diameter is that the wire of 1mm is compared and had more performance.
Observed cracking phenomena is limited in the value between 0.3～1mm in the concrete that is obtained by the present composition.As the result of this kind crack restriction, the concrete aggregate particle that forms the irregular surface of sides of fracture keeps embedding and remain on original position mutually, and this embeddeding action is that the fiber grappling in the concrete substrate of every side in crack provides.The mutual locking of aggregate particle and fiber guarantees that the edge in crack " is stitched together ", this means that the crack of controlling by this kind mode can not sell the overall structure on weak road surface significantly.The crack is sluggish, because when using road, it does not change under the load when heavy traffic.And because the side in crack keeps machinery to embed between gathering materials between each component of concrete under the contact effect, so the fatigue effect stress that fiber is subjected to is less.This guarantees that the road surface has favorable durability.In addition, if the width in crack remains on less than 1mm, even then it flows on the surface, the water that yet may contain ice-removal salt can not penetrate in this kind crack yet.Thereby limited the danger of the fiber generation corrosion in the crackle.
Gathering materials of using contains 70～100% ground material, has wedge angle and like square configuration, and particle diameter prevents from segregation phenomenon to that is to say the separation of coarse composition so that make between 0～14mm.Preferably, concrete composition also comprises the plasticizing agent composite material, and it helps by a compacting of lubrication generation of gathering materials, and obtains about 2400kg/m
3Concrete density, and have good result, for example, higher intensity and reduce the possibility of hydraulic binding agent content.
Optimum moisture content determined by modified Proctor test, and the concrete dry component 4～6% between change.
Advantageously, the hydraulic binding agent content of said composition is the about 250～300kg of every cubic meter of concrete, water content is 4～6% of a concrete dry composition weight, be about 100～150 premium on currency of every cubic meter of concrete, and metallic fiber content is between every cubic meter of concrete 25～50kg, preferably between 30～40kg.By embodiment as seen, said composition contains the hydraulic binding agent of 280kg and 110 liters water in every cubic meter of concrete.
Advantageously, the content of this composite material equals 0.3% of hydraulic binding agent weight at least.By using a spot of plasticizing agent, the lubrication between may obtaining to gather materials, for example consumption is 0.3～0.5% of a hydraulic binding agent weight.On the other hand, if work as plasticizing agent and retarding agent with identical product, make the workability of fresh concrete be maintained at about 20 hours if wish, for example the concrete that will lay the previous day is in construction once more one day after, then the concrete retarding effect can be only by the plasticizing agent acquisition of high level, and for example minimum is 0.7% of hydraulic binding agent weight.
According to concrete composition of the present invention, can be used to produce or strengthen and must stand heavy road structure or industry zone of rolling load, for example, the load that those are produced by the truck that often passes through, heavy vehicle or high actual load aircraft etc.
Composition of the present invention allows in big crack width scope, and 0～4mm for example lays and has the concrete lift (course) of continuous variation flexural strength and do not have fibrous fracture.In particular cases a kind of, the variation of this intensity in described scope departs from the amount of its nominal value less than 20%.
Material of the present invention is handled with heavy model planisher (heavy-screed finisher), and this planisher is an equipment that is generally used for handling bituminous material, or handles with blade machine.Then, and compacting machine with one or two jolt ramming cylinder heavy with several tons is with the concrete compacting.After compacting, can provide the kneading effect by applying the pneumatic tyre formula compacting machine of load for example for 3～5 tons/wheel.
Then, fibre-reinforced tamped concrete can cover with the pitch wearing layer immediately, and this concrete curing can be undertaken by the asphalt emulsion that is loaded with gravel.The pavement of road that comprises concrete base layer of the present invention and be coated with the pitch wearing layer subsequently has the advantage that function is separated,-this cement concrete makes this structural life-time long under the situation of heavy traffic, and this bitumen layer makes it can obtain to have the covering layer of high property, for example the porous asphalt that can drink up the rain and/or can reduce the noise abatement pitch of noise.Layer of concrete (course) also can be coated with the miniature concrete (microconcrete) that contains high-grade cement, it is made up of the mixture of three kinds of components, be cement, heap sand (containing a high proportion of fine powder) and the sand that contains a small amount of fine powder, this heap sand contains and is less than 10～20% the fine powder less than 0.080mm.
Except producing no seam and having purposes aspect the continuously new pavement of road of good durability, fibre-reinforced roll-in concrete of the present invention also can be used as road surface enhancing body.With the enhancing while, this method also can be controlled the problem of asphalt pavement rut by adding the thin layer (course) that thickness is the thin or extremely thin pitch covering of 5～18cm and quilt.
Description of drawings
By following detailed description, and, can better understand the present invention, and other purpose, explanation, feature and advantage will become clearer in conjunction with appended schematic diagram to a current preferred particular of the present invention.
In the accompanying drawings:
-Fig. 1 is used to illustrate prior art and shows the figure as a result that full grappling fiber and deformable grappling fiber is carried out pull that both diameters are 1mm;
-Fig. 2 is the partial side view that can be used for the fiber in the present composition; And
-Fig. 3 is that explanation is to several crooked tests by the prism (prism) of composition of the present invention and prior art combinations acquisition.
According to Fig. 2, composition of the present invention comprises the metallic fiber that is obtained by the wire 10 with crooked end 12.This wire is substantially cylindrical on its whole length L direction, and has straight substantially core 11 and extend to both sides by the mid portion 13 that tilts, and this mid portion 13 extends to described end 12.Each end 12 is formed with straight line portion that core 11 link to each other by the mid portion 13 of the described inclination by having two elbows at least.Diameter d wiry is between 0.38～1.05mm, and total length is between 19～80mm, and minimum tensile strength is 900N/mm
2
Two ends 12 wiry can have difference or similar shapes.The length l of the straight line portion of end 12, l ' can be different or similar, and between 1.5～4mm.The sloping portion 13 of each end forms with straight core 11 and is less than or equal to 160 ° obtuse angle alpha, α '.Two angle α, α ' can be identical or different thus defined.A mid portion of an end needn't be positioned at the plane of another mid portion and core 11.And each end needn't be positioned at the plane of intermediate portion and core.Transversal displacement h, h ' between core 11 and each end can be identical or different, and are at least 0.75mm.Among the described herein embodiment, composition of the present invention comprises the fiber of selling with " Dramix 80/60 " trade (brand) name, and this fiber is characterised in that total length L is 60mm, and diameter d is 0.75mm, be 80 than λ promptly, and tensile strength is at least 1,100N/mm
2Two angle α, α ' are identical substantially, and mid portion, end and core 11 are located substantially in the same plane.
Prepare various compositions according to Table II, composition 1,2 and 4 difference each other only is, the characteristic difference of wherein contained fiber.Composition 1 contains full grappling type " Twincone " fiber, and composition 2 contains " Dramix FL 45/50 " fiber of flat hooked end type, and " Dramix 80/60 " fiber of containing of the present composition 4.Fiber content in these three compositions is 30kg/m
3Composition 3 contains " Dramix FL 45/50 " fiber identical with composition 2, but content is 35kg/m
3
Table II
(*) CPA-CEM I 52.5R cement
| | Composition | 2 " Dramix FL 45/50 " | Composition | 3 " Dramix FL 45/50 " fiber | Composition 4 " Dramix 80/60 " fiber | ||
| ????Kg/m 3 | 5/15 gravel | ????1103 | ????1103 | ????1103 | ????1103 | ||
| 0/5 sand | ????735 | ????735 | ????735 | ????735 | |||
| Cement (*) | ????400 | ????400 | ????400 | ????400 | |||
| Total water | ????160 | ????160 | ????160 | ????160 | |||
| Superplastiser | ????6 | ????6 | ????6 | ????6 | |||
| Fiber | ????30 | ????30 | ????35 | ????30 | |||
| W/C (water/cement) ratio | ????0.4 | ????0.4 | ????0.4 | ????0.4 |
Define the prescription of concrete composition so that satisfy the compressive strength standard of about 50～60Mpa, satisfy the required pressure grading range of roll-in concrete (NF P 98-128) simultaneously (gradingrange).According to the pressure standard, the compressive strength of measuring on being of a size of the cylinder of 16 * 32cm is listed in the Table III.Every kind of composition 1～4 is tested on three concrete cylindricals.
Table III
| | | | On | |
| Composition | ||||
| 1 | ????50MPa | ??54MPa | ??50MPa | ??51.3 |
| Composition | ||||
| 2 | ????52MPa | ??52MPa | ??52MPa | ??52.3 |
| Composition | ||||
| 3 | ????61MPa | ??59MPa | ??57MPa | ??59.0MPa |
| Composition 4 | ????58MPa | ??57MPa | ??52MPa | ??55.7MPa |
In the process of the cracking mechanism in research material, in order to characterize fiber, in the enterprising line bend test of prism in the contribution aspect the remaining load-carrying ability of maintenance.Prism is tested under toroidal bend.For the size of fiber, select large-sized prism, its length is 70cm, high 20cm and wide 15cm.In the crooked test process, the distance between fulcrum is 60cm, and the distance between the point of imposed load is 20cm.Each prism is the pre-gap of heart part therein, so that the crack is limited to the part.With this breach of sensor bridge joint, and can directly control test at the place of opening in crack.Figure 3 shows that the result of the comparison crooked test that carries out for the performance that is evaluated at the various fibers in concrete cracking control aspect.
Prism by the composition 1 that contains " Twincone " fiber obtains after the crack occurring, shows load and reduces, until width is that about 0.2mm is when fiber energy bearing load.Corresponding with maximum load-carrying capacity, after the knee crack width was greater than 1 millimeter, fiber began fracture, and the supporting capacity that causes load to continue decline and prism descends very fast.
The prism of the present composition 4, the slight reduction that after the crack occurring, only shows load, and after load raises once more.When crack width is between 1～1.5mm, obtain maximum load-carrying capacity.Then, this supporting capacity slowly reduces.
Containing 30kg/m
3Under composition 2 situations of " Dramix FL 45/50 " fiber, after the crack occurring, prism shows very large load decline (about 50%).This curve table reveals load decline many times after surpassing the specific crack width of about 1.8mm.Identical with the situation in the composition 1, these declines are corresponding with the fracture of fiber.
Contain 35kg/m therein
3 Composition 3 situations of " Dramix FL 45/50 " fiber under, its result is similar by results that composition 2 obtains to those, different only be because the increase of fiber content makes it to have advantages of high bearing capacity.
Ability that can bearing load behind cracking roughly is in same magnitude to composition 1,3 and 4.Be limited in the cracking of 1mm for width, these fibers have substantially the same ability.At first, cause losing efficacy or the intrinsic propesties of the fiber extracted, the character of fracture area is changed.For the crack width of maximum 1mm, full grappling fiber has the highest anchoring strength.Yet, if crack width is bigger, this fiber failure, and reduce fast in the suturing of edge of crack.For the crack width of maximum 1mm, fiber of the present invention is compared with full grappling fiber, has low 7% lower slightly anchoring strength approximately.On the other hand, it can keep the performance of grappling in the very large crack width scope of 3～4mm, and this is to use full grappling fiber or other fiber institute inaccessiable.
Although the present invention is illustrated by a specific embodiment, obviously it is as limiting the present invention, and so long as it falls within the scope of the present invention, also should comprise all and the technology of described method equivalence, and make up.
Claims (11)
1, a kind of fibre-reinforced roll-in concrete composition, comprise gather materials, hydraulic binding agent and deformable grappling metallic fiber, it is characterized in that, this metallic fiber constitutes by being substantially columniform wire (10), this wire has straight substantially longitudinal center's part (11), extend by the mid portion (13) of crooked end part (12) its each end, and being shaped as of described end sections can prevent two intermeshing types of adjacent fiber, and described fiber has:
-diameter (d) is between 0.38～1.05mm;
-total length is between 19～80mm;
The length of-end sections (l, l ') is between 1.5～4mm;
The transversal displacement of-core and each end sections (h, h ') is at least 0.75mm;
(α, α ') is less than or equal to 160 ° at the obtuse angle of-each mid portion and core;
Obtuse angle between-each mid portion and the end sections; And
-minimum tensile strength is 900N/mm
2,
And described composition contains every m
3The hydraulic binding agent of concrete 180～400kg, every m
3Concrete 90～150 premium on currency, every m
3Concrete 25～60kg metallic fiber and 1.8% plasticizing agent and/or the retarding agent composite material that equal hydraulic binding agent weight at the most.
2, composition as claimed in claim 1 is characterized in that, the diameter (d) of described silk (10) that constitutes fiber between 0.65～0.85mm, and length overall/diameter (L/d) than (λ) between 65～85.
3, composition as claimed in claim 2 is characterized in that, described fiber length overall/diameter is about 80 than (λ).
4, composition as claimed in claim 3 is characterized in that, described silk total length is 60mm, the about 0.75mm of diameter, and minimum tensile strength is 1100N/mm
2
As each described composition among the claim 1-4, it is characterized in that 5, each crooked end part (12) is formed by the straight part that is connected to core (11) at least by the described mid portion (13) that comprises two elbows.
6, as each described composition among the claim 1-5, it is characterized in that described composition contains every m
3The hydraulic binding agent of concrete 250～300kg, be 4～6% water content of concrete dry composition weight, about 100～150 premium on currency of promptly every cubic meter of concrete, and metallic fiber content is between every cubic meter of concrete 25～50kg.
7, as each described composition among the claim 1-6, it is characterized in that the amount of plasticizing agent composite material equals 0.3% of hydraulic binding agent weight at least.
8, form the method for jointless continuous pavement of road and industrial occupancy, it is characterized in that, this method may further comprise the steps: form based on the fibre-reinforced roll-in concrete lift according to the composition of each aforementioned claim, thereby obtain at the big crack opening scope concrete lift that for example flexural strength can change continuously and fiber did not lose efficacy under 0～4mm.
9, composition as claimed in claim 8 is characterized in that, the variation of intensity in described scope be departing from less than 20% of its nominal value relatively.
10, composition as claimed in claim 8 or 9, it is characterized in that, described concrete lift is coated with pitch wearing layer or miniature concrete, this miniature concrete is made up of the composite material of three kinds of components, be cement, heap sand and the sand that contains a small amount of fine powder, this heap sand contains at least 10～20% the fine powder less than 0.080mm.
11, composition as claimed in claim 8 or 9 is characterized in that described step is to form the fibre-reinforced roll-in concrete lift that thickness is 5～18cm, is used to strengthen the asphalt roads road surface or handles as anti-rut.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR00/05624 | 2000-05-03 | ||
| FR0005624A FR2808522B1 (en) | 2000-05-03 | 2000-05-03 | FIBER REINFORCED COMPACT ROUND CONCRETE COMPOSITION AND METHOD FOR MAKING A PAVEMENT FROM SAID COMPOSITION |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1363008A true CN1363008A (en) | 2002-08-07 |
| CN1122130C CN1122130C (en) | 2003-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01800007.XA Expired - Fee Related CN1122130C (en) | 2000-05-03 | 2001-04-27 | Compacted rolled fiber-reinforced concrete composition and method for producing pavement based on same |
Country Status (15)
| Country | Link |
|---|---|
| EP (1) | EP1278925B1 (en) |
| JP (1) | JP2003531794A (en) |
| CN (1) | CN1122130C (en) |
| AT (1) | ATE260386T1 (en) |
| AU (1) | AU2001256431A1 (en) |
| BE (1) | BE1014022A3 (en) |
| CZ (1) | CZ301483B6 (en) |
| DE (1) | DE60102148T2 (en) |
| ES (1) | ES2217143T3 (en) |
| FR (1) | FR2808522B1 (en) |
| HU (1) | HU223747B1 (en) |
| PL (1) | PL206537B1 (en) |
| SK (1) | SK15622002A3 (en) |
| TR (1) | TR200401157T4 (en) |
| WO (1) | WO2001054471A2 (en) |
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| CN110023572A (en) * | 2016-09-28 | 2019-07-16 | 诺翁诺翁公司 | For increasing the reinforcing element of the intensity of spontaneous coagulation pastes |
| CN114133185A (en) * | 2021-12-13 | 2022-03-04 | 北京建筑材料科学研究总院有限公司 | Ultrahigh-performance concrete and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2808522B1 (en) * | 2000-05-03 | 2003-01-10 | Chaussees Tech Innovation | FIBER REINFORCED COMPACT ROUND CONCRETE COMPOSITION AND METHOD FOR MAKING A PAVEMENT FROM SAID COMPOSITION |
| FR2906270B1 (en) * | 2006-09-27 | 2008-11-14 | Chaussees Tech Innovation Sarl | FIBER REINFORCED COMPACT ROLLING CONCRETE COMPOSITION COMPRISING BITUMINOUS FRAISATS AND METHOD OF MAKING A PAVEMENT |
| CA2760622C (en) * | 2009-06-12 | 2017-03-28 | Nv Bekaert Sa | High elongation fibres |
| CZ2012903A3 (en) * | 2012-12-17 | 2014-05-21 | České vysoké učenà technické v Praze - fakulta stavebnà | Steel-fiber-reinforced concrete of ultrahigh strength |
| CZ2014730A3 (en) * | 2014-10-30 | 2015-11-04 | České vysoké učenà technické v Praze- Kloknerův ústav | Heat cured concrete of ultrahigh strength reinforced with wires and intended particularly for prefabrication, and process for producing thereof |
| KR101711842B1 (en) * | 2015-09-11 | 2017-03-07 | 주식회사 금강 | A Reinforcement for Concrete |
| FR3057590B1 (en) * | 2016-10-18 | 2020-10-09 | Hsols Ind | STRUCTURAL SLAB WITH METAL FIBERS |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0098825B1 (en) | 1982-07-01 | 1987-03-04 | Eurosteel S.A. | Fibres for the reinforcement of mouldable materials with a hydraulic or other bonding agent, and their manufacture |
| DE3363554D1 (en) | 1982-12-30 | 1986-06-19 | Eurosteel Sa | Filiform elements usable for reinforcing mouldable materials, particularly concrete |
| FR2633922B1 (en) * | 1988-07-08 | 1992-10-23 | Screg Routes & Travaux | FIBER REINFORCED COMPACT CONCRETE AND ITS USE |
| FR2684397B1 (en) | 1991-11-29 | 1997-04-25 | Eurosteel Sa | PROCESS FOR PRODUCING CONTINUOUS INDUSTRIAL PAVEMENTS OR AREAS IN FIBER REINFORCED COMPACTED CONCRETE. |
| BE1005815A3 (en) * | 1992-05-08 | 1994-02-08 | Bekaert Sa Nv | SFRC HIGH flexural strength. |
| FR2808522B1 (en) * | 2000-05-03 | 2003-01-10 | Chaussees Tech Innovation | FIBER REINFORCED COMPACT ROUND CONCRETE COMPOSITION AND METHOD FOR MAKING A PAVEMENT FROM SAID COMPOSITION |
-
2000
- 2000-05-03 FR FR0005624A patent/FR2808522B1/en not_active Expired - Fee Related
-
2001
- 2001-04-27 CN CN01800007.XA patent/CN1122130C/en not_active Expired - Fee Related
- 2001-04-27 PL PL359002A patent/PL206537B1/en not_active IP Right Cessation
- 2001-04-27 JP JP2001555463A patent/JP2003531794A/en active Pending
- 2001-04-27 ES ES01929737T patent/ES2217143T3/en not_active Expired - Lifetime
- 2001-04-27 TR TR2004/01157T patent/TR200401157T4/en unknown
- 2001-04-27 HU HU0300620A patent/HU223747B1/en not_active IP Right Cessation
- 2001-04-27 AT AT01929737T patent/ATE260386T1/en not_active IP Right Cessation
- 2001-04-27 CZ CZ20023619A patent/CZ301483B6/en not_active IP Right Cessation
- 2001-04-27 EP EP01929737A patent/EP1278925B1/en not_active Expired - Lifetime
- 2001-04-27 AU AU2001256431A patent/AU2001256431A1/en not_active Abandoned
- 2001-04-27 SK SK1562-2002A patent/SK15622002A3/en unknown
- 2001-04-27 WO PCT/FR2001/001304 patent/WO2001054471A2/en active IP Right Grant
- 2001-04-27 DE DE60102148T patent/DE60102148T2/en not_active Expired - Lifetime
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105152581A (en) * | 2015-08-10 | 2015-12-16 | 长安大学 | Self-healing asphalt concrete based on microwave heating and containing metal fibers and preparation method of self-healing asphalt concrete |
| CN110023572A (en) * | 2016-09-28 | 2019-07-16 | 诺翁诺翁公司 | For increasing the reinforcing element of the intensity of spontaneous coagulation pastes |
| CN114133185A (en) * | 2021-12-13 | 2022-03-04 | 北京建筑材料科学研究总院有限公司 | Ultrahigh-performance concrete and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2808522B1 (en) | 2003-01-10 |
| AU2001256431A1 (en) | 2001-08-07 |
| ES2217143T3 (en) | 2004-11-01 |
| EP1278925B1 (en) | 2004-02-25 |
| CZ20023619A3 (en) | 2003-05-14 |
| HU223747B1 (en) | 2004-12-28 |
| WO2001054471A2 (en) | 2001-08-02 |
| PL206537B1 (en) | 2010-08-31 |
| HUP0300620A2 (en) | 2003-07-28 |
| CZ301483B6 (en) | 2010-03-17 |
| SK15622002A3 (en) | 2003-06-03 |
| PL359002A1 (en) | 2004-08-23 |
| CN1122130C (en) | 2003-09-24 |
| DE60102148T2 (en) | 2004-10-28 |
| ATE260386T1 (en) | 2004-03-15 |
| FR2808522A1 (en) | 2001-11-09 |
| DE60102148D1 (en) | 2004-04-01 |
| JP2003531794A (en) | 2003-10-28 |
| BE1014022A3 (en) | 2003-02-04 |
| TR200401157T4 (en) | 2004-07-21 |
| EP1278925A2 (en) | 2003-01-29 |
| WO2001054471A3 (en) | 2002-01-10 |
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