• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Method for the hot application of a top layer of a road surface hardening, wherein for the top layer a mixture is used which comprises a stone fraction, a sand fraction, a filler fraction, and a binder fraction, the mixture is applied at a temperature of at least 100 ° C by the spreader the substrate at an ambient temperature of at least 10 ° C and in the absence of natural aqueous precipitation, the mixture is characterized by a predominantly sand skeleton and an essentially overfilled mastic, the mineral aggregate having a grain size of up to 8 millimeters.
    公开号:NL2019481A
    申请号:NL2019481
    申请日:2017-09-04
    公开日:2017-11-15
    发明作者:Dekkers Rudy
    申请人:Kws Infra B V；
    IPC主号:
    专利说明:

    Method for the hot application of a top layer of a road surface paving.
    This invention relates to a method for applying a road pavement top layer, a road surface obtained with that method, and a mixture suitable for this top layer. This invention finds particular application with a road surface within built-up areas, such as a city road or access road. The top layer is of the asphalt concrete type, in which mineral grains form a compression-resistant skeleton and are made permanently cohesive by bituminous binder, as a coating present on the grains.
    Frequently used known top layers are of the ZOAB, DAB and SMA type. Due to its vulnerability under high loads (braking, accelerating or rotating traffic), ZOAB is preferably not applied within built-up areas. NL1033886 (municipality of Utrecht, 2007), is aimed at a top layer of DAB or SMA-type with a long service life within built-up areas. EP1849916B1 (Colas, 2006) is aimed at a maximum of 60 millimeters thick sound-damping, bitumen-bonded top layer with a 2/4 brick fraction and a design hollow space above 20%. WO99 / 10434 is directed to a cold applied top layer. DE 29615276 U discloses an asphalt mixture with, by weight, 7.6% bitumen, approx. 50% brick fraction 2-3 mm and approx. 40% sand, which presumably concerns a mainly sand skeleton and overfilled mastic. GB 367161 A discloses an asphalt mixture with, by weight, 86% sand, 11-15% bitumen, 0% rock, which presumably concerns a sand skeleton and overfilled mastic.
    The information from these five quotes is incorporated herein by reference so that any measure thereof can be incorporated separately into this patent application as if belonging to this patent application and possibly combined with one or more other measures belonging to this patent application.
    The invention is versatile and concerns among others. one or more of: good durability of the road surface; a low layer thickness; easy processability; good grip of the tires, even on wet roads; relatively insensitive to one or more of cracking, fraying and spurring; suitable for roads with a relatively large amount of heavy traffic (that is, considerably more than the usual 3% heavy traffic on roads that are not exceptionally taxed), such as bus lanes and on and around industrial areas; sound damping, preferably at least 3 dB; reducing rolling resistance, preferably at least 8 or 10%; as much as possible a concave texture.
    According to the invention, a composition or mixture is used which comprises a stone fraction, a sand fraction, a filler fraction, a binder fraction and optionally a drip inhibitor fraction. The mixture is preferably applied by the spreading machine to the substrate at an ambient temperature of at least 10 ° C and / or at an ambient temperature that is 5 ° C higher than the local wind speed in m / s and / or in dry weather (no precipitation) .
    Preferably the product can be characterized on the basis of one or more of the following: mainly sand skeleton or sand skeleton like; maximum 60% by weight or 70% by weight of brick fraction; mainly overfilled mastic or overfilled mastic; MPD (Mean Profile Depth) at least 0.4 or 0.42 or 0.43 or 0.47 and / or at most 0.52 or 0.54 or 0.55 (in millimeters); Skewness a minimum of 1.75 or -1.78 or -1.80 or -1.90 and / or a maximum of 1.55 or -1.60 or -1, 65 or -1.70 (dimensionless); RMS (Root Mean Square) at least 0.25 or 0.3 or 0.35 and / or at most 0.45 or 0.5 or 0.55 (in millimeters); mastic volume% v / v minimum 40 or 40.5 or 41 or 45 or 46 or 46.5 or 46.9 and / or maximum 41.5 or 42 or 43 or 44 or 45 or 47.1 or 47.5 or 48 or 50; mass percentage of bitumen in the mastic% m / m minimum 12 or 13 or 13.1 or 13.2 or 14 or 14.2 and / or maximum 13.6 or 13.8 or 14 or 14.8 or 15 or 16. MPD , Skewness and RMS are texture parameters, to be measured according to IS013473 for example.
    This top layer preferably has the following properties: Marshall stability, flow, quotient.
    Preferably a bitumen is selected with the following penetration: 160/220 or 100/150 or 70/100 or 50/70 or 40/60 or 35/50 or 30/45 or 20/30. The "penetration" means the test results of a standardized penetration test (e.g. EN 1426). The penetration is defined as the depth, in tenths of a millimeter, that penetrates a standardized test needle with a force of 100 grams for 5 seconds and at a temperature of 25 ° C into the material of the bitumen fraction. The higher the penetration, the softer the bitumen. With a penetration of 70/100 (also called 70 to 100), the test needle penetrates between 7 and 10 mm into the material.
    The mineral aggregate preferably contains a grain size of at most 8 or 7 or 6 or 5.6 millimeters.
    For the grain size, the standard EN 13043 preferably applies. With a round grain, the grain size refers to its diameter. In the case of an unround grain, the grain size refers to the length of its primary axis, that is, the longest line that can be drawn from one end to an opposite end of the grain. The notation d / D, where d <D, indicates the presence of grains with the smallest (d) and the largest (D) in millimeters, so 2/6 means grains with a grain size of at least 2 and at most 6 millimeters .
    Preferably, the brick fraction is 2/6 or 2/5 or 3/5 or 4/8 or 2/8. Such a stone fraction is an example of a single-grain fine stone chip.
    By "hot application" is meant here that the road surface paving, and in particular the binder, is applied to the substrate at a substantially higher than ambient temperature, such as a minimum of 100 ° C or 150 ° C.
    The road surface paving layer preferably consists of a mixture of mineral aggregate and binder and optionally mineral cement, e.g. Portland, wherein the binder is preferably present as bitumen, more preferably polymer-containing bitumen, the polymer preferably being rubbery. The binder is preferably thermoplastic in nature. The binder can be present in an excess.
    The mineral aggregate is optionally a porous, preferably permeable, substantially discontinuously graded and / or single-grain stone mixture (grain size, for example, smaller than 7 or 6 or 5.6 mm).
    The top layer is preferably applied to the road foundation by the spreading machine at a speed of movement between approximately 4 and approximately 5 meters per minute. After spreading on the road foundation with the spreading machine and possibly pre-compacting, a form of compacting or mechanical processing is carried out at a distance downstream of the spreading machine with suitable means, such as a compacting roller, to thereby reduce the density and / or strength of the layer. to increase. Preferably, for compacting, one or more of the following applies: is carried out at a top layer temperature of at least 155 or 165 or 170 or 180 and / or at most 185 or 190 ° C; a start is made at a maximum temperature of 5 or 10 or 15 ° C lower than the material that is in the bunker of the spreading machine in operation or flows out of the spreading machine and flows on the road foundation (for example 180 ° C); is completed at a maximum temperature of 30 or 40 or 50 ° C lower than the material that is in the bunker of the spreading machine in operation or that flows out of the spreading machine and onto the road foundation; is started within 0.5 or 1 or 1.5 minutes and / or stopped within 8 or 10 or 15 minutes after the relevant part of the top layer has been made by the spreader on the road foundation; is started at a maximum distance of 2 or 4 or 5 meters and / or stopped at a maximum distance of 20 or 40 or 60 meters downstream of the spreading machine; rolling is first carried out with a high roller pressure, for example, supplied by a 3-roll roller, and then with a lower roller pressure, for example supplied by a tandem roller; the high roller pressure is at least 10 or 20 or 30% or 40% higher than the low roller pressure; the high rolling pressure is a minimum of 40 or 45 or 50, such as approximately 54 and possibly a maximum of 55 or 60 or 65 kg per square centimeter; the low rolling pressure is a minimum of 15 or 20 or 25, such as approximately 28 and a maximum of 30 or 35 or 40 kg per square centimeter; the high rolling pressure is applied for a minimum of 0.5 or 1 minute or a minimum of 20 or 30% of the total rolling time; no vibrations or vibrations are made with the roller during rolling.
    The layer is preferably applied in a thickness such that after compacting the thickness of the top layer ready for traffic is at least 25 or 27 or 30 millimeters. Preferably, the thickness prior to compaction is at least 10 millimeters more or at least 30% more than the thickness after compaction is completed.
    Preferably, no scattering layer is applied to the top layer applied by the spreading machine before, after and during compaction.
    The substrate present on which the top layer is laid forms a coherent road foundation layer, for example bottom layer or intermediate layer, which consists, for example, of an asphalt concrete with a closed (surface) structure, or a cement-bound mineral layer. Subsequently, to make the top layer, a warm mixture of bitumen with minerals is applied to it, the minerals preferably being in a relatively narrow band, degraded with a grain distribution. When milling off an upper layer of the substrate, for example an old top layer to be replaced, a fine-roll cutter must be used so that the new top layer comes onto a surface made with a fine-roll cutter.
    The stone fraction preferably comprises the following partial fractions in percentage mass by mass: - 0% with a particle size greater than 11.2 mm; - 0% with a particle size larger than 8 mm; - 0-2% with a particle size larger than 5.6 mm; - 45-55% with a particle size larger than 4 mm; - 70-78% with a particle size larger than 2.8 mm; - 95-100% with a particle size larger than 2 mm;
    In one application, the bituminous binder fraction comprises a percentage mass by mass between 5.0 and 6.0% or between 5.2 and 5.7% (for example approximately or exactly 5.5%) on 100% mineral aggregate, the mineral aggregate comprises the stone, sand and fill material fraction. The top layer preferably has a design cavity (determined with methylene chloride; mgm 2x50 marshall) of about 7% or more, preferably at most 8% or 10% and / or preferably at least 5, 5% or 6% or 7%. In one embodiment, the hollow space design is exactly 6.0% or 6.5% or 7.0% or 7.5%.
    The mineral aggregate is, for example, preheated to about 170-175 ° C and the bituminous binder is separately preheated to about 155-160 ° C. Subsequently, while having the indicated or different individual temperature, these components are combined and mixed without forced cooling, preferably at a mixing temperature of at least about 130-160 ° C, preferably between 160 ° C and 200 ° C, e.g. 185 ° C. Alternatively, mineral aggregate and binder are heated and mixed together to reach a final temperature of at least about 130-160 ° C, preferably between 160 ° C and 200 ° C, for example 185 ° C. After mixing and heating, the hot mixture is poured into the thermally insulated, unheated dump trucks of the dump trucks at the mixing temperature and brought to the spreader and poured therein and spread as a top layer on the road foundation by the spreader. The moment the mixture is poured into the spreading machine, it must have a temperature of at least 160 or 170 or 180 ° C.
    The grain fraction grain preferably has one or more of the following: a cubic shape; gangue; from porphy sills; from a quarry in Belgium, for example Bierghes-Rebecq or Lessines or Baileux or Quenast; contains coarse minerals in a fine-grained structure.
    For the cubic form of the grains of the stone fraction, preferably one or more of the following applies: Elongation Ratio at least 0.50 or 0.55 or 0.60 or 0.65 or 0.70; Flatness Ratio at least 0.50 or 0.55 or 0.60 or 0.65 or 0.70; Shape Index up to 20%; Flakiness Index maximum 20% or 15%; part of grains of the applied batch of rock fraction that does not meet the Elongation Ratio maximum 20% or 15%; portion of granules from the applied batch of rock fraction that does not meet the Flatness Ratio maximum 20% or 15%; one or more of the foregoing aspects in particular for granules of at least 4 mm. The Flakiness Index and Shape Index (also called: Elongation Index) are preferably determined on the basis of EN933-3 (1997) and EN933-4 (1999), respectively. The Elongation Ratio is the width divided by the length of the grain. The Flatness Ratio is the thickness divided by the width of the grain. The Shape Index or Flakiness Index, respectively, preferably indicates the portion of grains of the used batch of brick fraction that do not meet the Elongation Ratio and / or Flatness Ratio.
    Preferably one or more of the following applies: adhesive layer 0.3 kg / m2; density in the road about 23 kg per centimeter layer thickness per square meter area
    The sand fraction contains grains larger than those of the filler fraction (maximum 63 microns grain size) and the sand grains have a maximum grain size of 2 millimeters.
    In one application the mixture of aggregate and binder is composed as follows: through sieve 2.0 mm 37.5% mass 2/5; through sieve 63 microns 11.0% mass; Bitumen 5.5% mass; sand rest% mass.
    An alternative mixture may include one or more of the following: (% m / m): Through screen C8 100%; through sieve C5.6 from 95, 96 or 97 to 99% or 99.5%, such as about or exactly 98%; through sieve C4 of 70, 72, 73 or 74 to 76, 77, 78 or 80%, such as about or exactly 75%; through sieve 2mm of 33, 34, 35, 36 or 37 to 39, 40, 41, 42 or 43%, such as about or exactly 38%; by sieving 500 microns of 15, 16, 17, 18 or 19 to 21, 22, 23, 24 or 25%, such as about or exactly 20%; through sieve 63 microns of 7, 8, 9 or 10 to 12, 13, 14 or 15%, such as about or exactly 11.0%; bitumen of 5.0, 5.1, 5.2, 5.3 or 5.4 to 5.6, 5.7, or 5.8%, such as about or exactly 5.5%.
    Another alternative mixture may include one or more of the following: (% m / m): Through screen C11, 100%; through sieve C8 of 93, 94, 95 or 96 to 98, 99 or 99.5%, such as about or exactly 97%; through sieve C4 of 38, 39, 40, 41 or 42 to 44, 45, 46, 47 or 48%, such as about or exactly 43%; through sieve C2.8 of 27, 28, 29, 30 or 31 to 33, 34, 35, 36 or 37%, such as about or exactly 32%; through sieve 2mm of 27, 28, 29, 30 or 31 to 33, 34, 35, 36 or 37%, such as about or exactly 32%; by sieving 500 microns of 12, 13, 14, 15 or 16 to 18, 19, 20, 21 or 22%, such as about or exactly 17%; through sieve 63 microns of 5, 6, 7 or 8 to 9, 10, 11 or 12%, such as about or exactly 8.5%; bitumen of 4.8, 4.9, 5.0 or 5.1 to 5.3, 5.4, 5.5 or 5.6%, such as about or exactly 5.2%.
    For the specified values, the usual tolerances must still be taken into account.
    Texture parameters PPD RMS · Skewness sample impj [iil I> 1 1 0.45 0.4 -1..80 2 0.50 0.4 -1.76 3 0.50 0.4 -1.75 4 0.47 0, 4 -1.75 5 0.40 0.4 -1.74 6 0.44 0.4 -1.69 7 0.40 0.4 -1.68 8 0.52 0.4 1.67 9 0 54 M -182 0.43 0.3 -1.60 min 0.43 0.34 -1.80 max 0.54 0.44 -1.00
    The table above gives an example of the texture parameters measured from ten laboratory samples and below that the minimum and maximum measured value of the relevant parameter: from the ten measured samples.
    The mastic consists, as is known, of the three fractions ::: zandf: raction ,: the filler fraction, and the binder fraction. The mastic: does not contain the stone fraction :,
    In one application the mixture is positioned between a clear sand skeleton mixture, such as with a DAB (Dense Asphalt Beton) and a clear stone skeleton mixture, such as with an SMA (Steer: Mastic Asphalt) and contains a lot of mastic.
    A peculiarity of the invention is probably as follows: After the mixture has been applied to the substrate by the asphalt spreading machine, the brick trawl embedded in the mortar can align during compacting, so that the bricks come to lie flat with the flat side, which causes for a favorable texture of the road surface.
    Another feature of the invention is true as follows: Compared with the commonly used sound-reducing coatings, there is less hollow space (preferably 5.5 - 8.0%), which is moreover finer through the mixture is distributed (because the mixture contains relatively few and relatively small stones) and nevertheless a relatively high noise reduction is achieved, presumably because a better texture of the road surface is created so that the tires are made to vibrate less.
    The accompanying drawing shows in the single figure the volumetric positioning of two products according to the invention which are indicated as a dark dot and to which an arrow 30 and 80 respectively points. The product 30 is, for example, suitable for driving speeds of up to 50 km / h (within the built-up area), the product 80 for driving speeds above 60 km / h (outside the built-up area).
    The products 30, 80 are in the area of the figure where also known dense coatings belong (the upper right quadrant). These dense cover layers are the reference road surface for noise reduction, so 0 dB (A) noise reduction. The products 30, 80 according to the invention provide a noise reduction of approximately 6 dB (A). Two values are plotted in the graph of the accompanying drawing. On the x-axis the "mastic volume" and on the y-axis the "mass percentage of bitumen in the mastic". For example for the product 30 (the dot to the right in the graph) the "mastic volume" is between 46.9 and 47.1 (% v / v) and the "mass percentage of bitumen in the mastic" is between 13.2 and 13.6 (% m / m).
    The area designated "S" in the drawing refers to mixtures whose skeleton can be characterized as a stone skeleton. The area designated "Z" refers to mixtures whose skeleton can be characterized as a sand skeleton. The area designated "O" refers to blends with underfilled mastic. The area designated "V" refers to mixtures with overfilled mastic. The two products according to the invention lie in the quadrant of "sand skeleton" and "overfilled mastic" (the upper right quadrant in the figure).
    The "S" and "Z" regions are parallel to the X axis and the "O" and "V" regions are parallel to the Y axis.
    权利要求:
    Claims (54)
    [1]
    A method for hot application of a top layer of a road surface hardening, wherein for the top layer a mixture is used which comprises a stone fraction, a sand fraction, a filler fraction, and a binder fraction, the mixture being at a temperature of at least 100 ° C through the spreader applied to the substrate at an ambient temperature of at least 10 ° C and in the absence of natural aqueous precipitate, the mixture is characterized by a mainly sand skeleton and a substantially over-filled mastic, the mineral aggregate having a grain size of at most 8 millimeters.
    [2]
    2. Method according to claim 1, the grain size is a maximum of 7 millimeters.
    [3]
    3. Method according to claim 1 or 2, the grain size is a maximum of 6 millimeters.
    [4]
    Method according to one of the preceding claims, the grain size is a maximum of 5.6 millimeters.
    [5]
    5. Method according to one of the preceding claims, the stone fraction is 2/6.
    [6]
    6. Method according to one of the preceding claims, the stone fraction is 4/8.
    [7]
    Method according to one of the preceding claims, the stone fracture 2/8.
    [8]
    A method according to any one of the preceding claims, the binder is present as polymer-containing bitumen, wherein the polymer is rubbery and the binder is thermoplastic in nature and is present in an excess.
    [9]
    9. Method according to one of the preceding claims, the mineral aggregate is a porous, permeable, substantially discontinuously degraded stone mixture.
    [10]
    10. Method according to one of the preceding claims, the mineral aggregate is a porous, permeable, single-grain stone mixture.
    [11]
    11. Method according to one of the preceding claims, the top layer is applied to the road foundation by the spreading machine at a speed of movement of between approximately 4 and approximately 5 meters per minute, after spreading on the road foundation with the spreading machine and possibly pre-compacting, downstream at a distance of the spreading machine, a form of compaction or mechanical processing carried out with suitable means, such as a compaction roller, to thereby increase the density and / or strength of the layer.
    [12]
    12. Method as claimed in claim 11, the following applies to compaction: starting at a temperature at most 10 ° C lower than the material present in the bunker of the spreading machine in operation.
    [13]
    13. Method according to claim 11 or 12, the compaction is completed at a temperature at most 40 ° C lower than the material present in the bunker of the spreading machine in operation.
    [14]
    Method according to any of claims 11-13, the compaction is started within 1 minute and stopped within 10 minutes after the relevant part of the top layer has been made by the spreading machine on the road foundation.
    [15]
    Method according to any of claims 11-14, the compaction is started at a distance of at most 4 meters and stopped at a distance of at most 40 meters downstream of the spreading machine.
    [16]
    16. Method according to one of claims 11-15, the compaction is first carried out with a high roller pressure supplied by a 3-roll roller, and then with a lower roller pressure supplied by a tandem roller.
    [17]
    17. Method according to claim 16, the high roller pressure is at least 30% higher than the low roller pressure.
    [18]
    18. Method according to one of the preceding claims 16-17, the high rolling pressure is at least 50 and 60 kg per square centimeter; the low roller pressure is a minimum of 25 and a maximum of 35 kg per square centimeter.
    [19]
    19. Method according to one of the preceding claims 16-18, the high roller pressure is applied for at least 1 minute.
    [20]
    20. Method according to one of the preceding claims 16-19, the high rolling pressure is applied at least 30% of the total rolling time.
    [21]
    Method according to one of the preceding claims 11-20, during rolling no vibrations and no vibrations are made with the roller.
    [22]
    Method according to one of the preceding claims, the layer is applied in a thickness such that after compacting, the thickness of the top layer ready for traffic is at least 25 mm.
    [23]
    Method according to one of the preceding claims, the layer is applied in a thickness such that after compacting, the thickness of the top layer ready for traffic is at least 27 mm.
    [24]
    Method according to one of the preceding claims, the layer is applied in a thickness such that after compacting, the thickness of the top layer ready for traffic is at least 30 millimeters.
    [25]
    Method according to one of the preceding claims, the thickness before the compaction is at least 10 millimeters more than the thickness after the compaction has been completed.
    [26]
    Method according to one of the preceding claims, the thickness before the compaction is at least 30% more than the thickness after the compaction has been completed.
    [27]
    27. Method according to one of the preceding claims, no scattering layer is applied to the top layer applied by the spreading machine before, after and during compaction.
    [28]
    A method according to any one of the preceding claims, when milling away an old top layer to be replaced as the top layer of the substrate, a fine-roll cutter is used and the new top layer is applied to the surface made with the fine-roll cutter.
    [29]
    A method according to any one of the preceding claims, the brick fraction comprises the following sub-fractions in percentage mass by mass: - 0% with a particle size greater than 11.2 mm; - 0% with a particle size larger than 8 mm; - 0-2% with a particle size larger than 5, 6 mm; - 45-55% with a particle size larger than 4 mm; - 70-78% with a particle size larger than 2.8 mm; - 95-100% with a particle size larger than 2 mm.
    [30]
    A method according to any one of the preceding claims, the bituminous binder fraction comprises a percentage mass on mass between 5.2 and 5.7% on 100% mineral aggregate, wherein the mineral aggregate comprises the stone, sand and filler material fraction.
    [31]
    A method according to the preceding claim, the bituminous binder fraction comprises a percentage mass on mass of 5.5% on 100% mineral aggregate, the mineral aggregate comprising the stone, sand and filler material fraction.
    [32]
    A method according to any one of the preceding claims, the top layer has a design cavity (determined with methylene chloride; mgm 2x50 marshall) of at least 5.5% and at most 8%.
    [33]
    The method of the preceding claim, the design cavity is 6.0%.
    [34]
    The method according to the preceding claim 32, the design cavity is 6.5%.
    [35]
    The method according to the preceding claim 32, the design cavity is 7.0%.
    [36]
    A method according to the preceding claim 32, the design cavity is 7.5%.
    [37]
    A method according to any one of the preceding claims, the mineral aggregate is preheated to approximately 170-175 ° C and the bituminous binder is preheated separately to approximately 155-160 ° C, then these components are combined and mixed without forced cooling at a mixing temperature at approximately 185 ° C.
    [38]
    A method according to any one of the preceding claims, mineral aggregate and binder are heated and mixed together to reach a final temperature of approximately 185 ° C.
    [39]
    A method according to any one of the preceding claims, after mixing and heating up, the hot mixture is poured into thermally insulated, unheated dump trucks of tipping cars at the mixing temperature and brought to the spreader and poured therein and spread as a top layer on the road foundation by the spreader, and at the moment that the mixture is poured into the spreading machine, it has a temperature of at least 170 ° C.
    [40]
    A method according to any one of the preceding claims, the grain of the stone fraction has a cubic shape.
    [41]
    A method according to any one of the preceding claims, the grain of the stone fraction contains coarse minerals in a fine-grained structure.
    [42]
    Method according to one of the preceding claims, the grain of the stone fraction is gangue.
    [43]
    Method according to one of the preceding claims, the grain of the stone fraction comes from porphy sills.
    [44]
    A method according to any one of the preceding claims, an adhesive layer of 0.3 kg / m2 is used.
    [45]
    A method according to any one of the preceding claims, a density in the way of about 23 kg per centimeter of layer thickness per square meter of surface area is applied.
    [46]
    A method according to any one of the preceding claims, the sand fraction contains grains larger than those of the filler fraction (maximum 63 microns grain size) and the sand grains have a maximum grain size of 2 millimeters.
    [47]
    A method according to any one of the preceding claims, the mixture of aggregate and binder is composed as follows: through sieve 2, 0 mm 37, 5% mass 2/5; through sieve 63 microns 11.0% mass; Bitumen 5.5% mass; sand rest% mass.
    [48]
    A method according to any one of the preceding claims, the mixture of aggregate and binder is composed as follows (% m / m): by sieve C8 100%; through sieve C5, 6.98%; through screen C4 75%; through sieve 2mm 38%; through sieve 500 microns 20%; through sieve 63 microns 11.0%; bitumen 5.5%.
    [49]
    A method according to any one of the preceding claims, the mixture of aggregate and binder is composed as follows (% m / m): through screen C11, 100%; through screen C8 97%; through sieve C4 43%; through strainer C2.8 32%; through sieve 2mm 32%; through sieve 500 microns 17%; through sieve 63 microns 8.5%; bitumen 5.2%.
    [50]
    50. Method according to any of the preceding claims, of the texture the MPD (Mean Profile Depth) is a minimum of 0.47 and a maximum of 0.52 (in millimeters), measured according to IS013473.
    [51]
    A method according to any one of the preceding claims, of the texture of the finished top layer the Skewness is a minimum of -1.8 and a maximum of -1.60 (dimensionless), measured according to IS013473.
    [52]
    A method according to any one of the preceding claims, of the texture of the finished top layer, the RMS (Root Mean Square) is a minimum of 0.38 and a maximum of 0.42 (in millimeters), measured according to IS013473.
    [53]
    53. Method according to one of the preceding claims, the volume of mastic% v / v is at least 46.5 and at most 47.5 and the mass percentage of bitumen in the mastic% m / m is at least 12 and at most 13.6.
    [54]
    Method according to one of the preceding claims, the volume of mastic% v / v is at least 40.5 and at most 41.5 and the mass percentage of bitumen in the mastic% m / m is at least 14 and at most 14.8.
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    同族专利:
    公开号 | 公开日
    NL2019481B1|2019-04-25|
    NL2018465A|2017-09-11|
    NL2018465B1|2017-09-20|
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    NL2016356|2016-03-02|
    NL2016876|2016-06-01|
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