WO2014079496A1 - Bituminous coating composition - Google Patents

Bituminous coating composition Download PDF

Info

Publication number
WO2014079496A1
WO2014079496A1 PCT/EP2012/073284 EP2012073284W WO2014079496A1 WO 2014079496 A1 WO2014079496 A1 WO 2014079496A1 EP 2012073284 W EP2012073284 W EP 2012073284W WO 2014079496 A1 WO2014079496 A1 WO 2014079496A1
Authority
WO
WIPO (PCT)
Prior art keywords
weight
size
particles
bitumen
steel slag
Prior art date
Application number
PCT/EP2012/073284
Other languages
French (fr)
Inventor
Juris SMIRNOVS
Viktors HARITONOVS
Guntis BRENCIS
Mārtinš ZAUMANIS
Atis ZARINŠ
Juris Rihards NAUDŽUNS
Mārcis DZENIS
Genadijs ŠAHMENKO
Original Assignee
Rigas Tehniska Universitate
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rigas Tehniska Universitate filed Critical Rigas Tehniska Universitate
Priority to PCT/EP2012/073284 priority Critical patent/WO2014079496A1/en
Publication of WO2014079496A1 publication Critical patent/WO2014079496A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02—Macromolecular compounds
    • C04B26/26—Bituminous materials, e.g. tar, pitch
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/08—Slag cements
    • C04B28/082—Steelmaking slags; Converter slags
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C7/00—Coherent pavings made in situ
    • E01C7/08—Coherent pavings made in situ made of road-metal and binders
    • E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
    • E01C7/182—Aggregate or filler materials, except those according to E01C7/26
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2555/00—Characteristics of bituminous mixtures
    • C08L2555/20—Mixtures of bitumen and aggregate defined by their production temperatures, e.g. production of asphalt for road or pavement applications
    • C08L2555/22—Asphalt produced above 140°C, e.g. hot melt asphalt
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2555/00—Characteristics of bituminous mixtures
    • C08L2555/30—Environmental or health characteristics, e.g. energy consumption, recycling or safety issues
    • C08L2555/34—Recycled or waste materials, e.g. reclaimed bitumen, asphalt, roads or pathways, recycled roof coverings or shingles, recycled aggregate, recycled tires, crumb rubber, glass or cullet, fly or fuel ash, or slag
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2555/00—Characteristics of bituminous mixtures
    • C08L2555/40—Mixtures based upon bitumen or asphalt containing functional additives
    • C08L2555/50—Inorganic non-macromolecular ingredients
    • C08L2555/52—Aggregate, e.g. crushed stone, sand, gravel or cement
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Definitions

  • the invention relates to coating compositions based on bituminous materials, more particularly, to bituminous coating compositions, which can be used for roadway covering and pavement.
  • the European Slag Association suggests using steel slag i.a. for producing asphalt coatings (The European Slag Association: josEUROSLAG" 2006. Legal status of slags. Position paper: http://www.euroslag.com.).
  • asphalt-concrete mixture for road building comprising bitumen, slag of electric steel smelting production containing 24.5-25.7 wt.-% of particles of fraction 0.071-0.14 mm, 10-11 wt.-% of fraction less than 0.071 mm and sandy-rubble mixture of quartzite- sandstone of fraction 0-155 mm as a filling agent, wherein said components are taken in the following ratio, wt.-%: bitumen, 7.4-8.3; slag of electric steel smelting production of fraction 0-15 mm, 39.0-44.0; sandy-rubble mixture of quartzite- sandstone of fraction 0-155 mm, 47.7-53.6.
  • asphalt-concrete mixture containing bitumen, crushed stone, natural or crushed sand and mineral powder, such as wastes from production of nonferrous metals and chalky flour at the ratio from 1:2.3 to 1: 1.5, with the total content of Fe and Al oxides of not more than 7%, with the following ratio of components, wt %: oil bitumen - 5.2-5.7, crushed stone - 19.0-23.5, grinding siftings - 47.2-52.1, natural sand - 17.9-19.0, mineral powder - 4.7-5.7.
  • the goal of the invention is to develop a bituminous coating composition which would be inexpensive in manufacturing and resistant to heavy transport load.
  • bituminous coating composition comprising bitumen (from 6.0 to 6.8 weight % of the bituminous coating composition components' total weight), basic oxygen furnace (BOF) steel slag (from 87.1 to 87.9 weight % of the bituminous coating composition components' total weight) and mineral filler (from 6.0 to 6.1 weight % of the bituminous coating composition components' total weight).
  • the preferable mineral filler used is dolomite mineral filler.
  • the bitumen used in experiments was bitumen B70/100 and bitumen B60/90.
  • the BOF steel slag particles used in the offered coating have a size between 0 and 11 mm, wherein their preferable size and content was as follows: (i) steel slag particles having a size from 0 to 5 mm - from 39.6 to 44.3 weight % of the bituminous coating composition components' total weight, (ii) steel slag particles having a size from 2 to 5 mm - from 0 to 12.2 weight % of the bituminous coating composition components' total weight, (iii) steel slag particles having a size from 5 to 8 mm - from 14.1 to 19.6 weight % of the bituminous coating composition components' total weight, (iv) steel slag particles having a size from 8 to 11 - from 20.7 to 23.3 weight % of the bituminous coating composition components total weight.
  • the BOF steel slag used in experiments had the following chemical composition: CaO - from 25 to 35 weight , MgO - from 15 to 20 weight , Si0 2 - from 15 to 23 weight , MnO - from 5 to 7 weight , A1 2 0 3 - from 4 to 6 weight , Ti0 2 - from 0.1 to 1 weigh , FeO - from 15 to 19 weight %.
  • bitumen used in experiments had the properties as show in Table 3.
  • the mineral filler used had Methylene blue value less than 10 g/kg, water content less than 1 weight % and calcium carbonate having content of 90 weight %.
  • Size grading requirements are as follows: mineral filler passing rate through the sieve having size of 2 mm - 100%; filler passing rate through the sieve having size of 0,125 mm - from 85 to 100%; filler passing rate through the sieve having size of 0,063 mm - from 70 to 100%.
  • the Marshall mix design procedure was used for the determination of the optimal bitumen content for the reference mixture, considering the mixture test results for Marshall stability and flow, as well as the volumetric values: air voids (V), voids in mineral aggregate (VMA) and voids filled with bitumen (VFB).
  • Test specimens for Marshall Test had the shape of cylinder with diameter of 101mm and height range from 62.5to 64.5mm. All of them were prepared in the laboratory by impact compactor according to LVS EN 12697-30 with 2x50 blows of hammer 140°C temperature.
  • bitumen Dense graded bituminous coating mixtures have been designed by using bitumen
  • the proposed bituminous coating composition is produced as follows. Aggregate materials (dry mineral materials, BOF steel slag) are being loaded in the cold feed bins. Bitumen is stored in heated storage tank at a temperature, which corresponds to the mixing temperature of the bitumen. Mineral filler is stored in silos and dust is stored in baghouse. Adhesion additives are stored in accordance to the manufacturer requirements. Aggregates are primarily dosed (e.g. by flow rate and feeder speed) and carried to the aggregate drier/heater. Aggregates undergo drying/heating process (e.g. in the heating drum).
  • the rotation speed and the burner flame are adjusted to reach the required mixing temperature.
  • the aggregate When the aggregate is discharged from the dryer/heater unit, it is transported to screening unit. Sieves of appropriate sizes must be used to reach the desired particle size distribution of aggregates.
  • After screening the materials are separated temporarily in hot storage bins. Each aggregate fraction is withdrawn from storage bins and individually weighed to the required quantity to predetermined amount to reach the required particle size distribution of the mixture.
  • the weighed aggregates are released into the pugmill together with filler and/or the collected dust from the baghouse.
  • the blades in pugmil start mixing the aggregates. Bitumen is introduced in the pugmill and mixed homogeneously with the aggregates.
  • the mixing time depends on the efficiency of the pugmill and usually varies between 30 and 60 seconds.
  • the asphalt mixture is discharged directly into hot storage bins (tower plant) or in a cart, which transports asphalt to the hot storage bins. Table 4
  • Voids content of all samples 2-4.
  • Rectangular shape specimens with the base area of 305x305mm have been prepared for the test by using roller compactor according to LVS EN 12697-33. Thickness of the tested specimens conforms to that of the traditional pavement surface layer - 40mm.
  • the test assesses three parameters: wheel tracking slope (WTSAIR), which is defined as increase of depth of wheel track per 1000 test cycles; rut depth (RDAIR) which is the accumulated permanent deformation after 10000 cycles and proportional rut depth (PRDAIR) which is the relative depth of wheel track after 10000 test cycles in proportion to the test specimen thickness.
  • WTSAIR wheel tracking slope
  • RDAIR rut depth
  • PRDAIR proportional rut depth
  • the bituminous coating which was produced according to present invention shows surprisingly good resistance to permanent deformations, having an average rut depth value of 1.54 mm and wheel tracking slope of 0.12 mm/1000 cycles.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention relates to bituminous coating compositions, which can be used for roadway covering and pavement. The offered bituminous coating composition comprises: bitumen 6.0 - 6.8 weight %, basic oxygen furnace (BOF) steel slag 87.1 - 87.9 weight % and mineral filler 6.0 - 6.1 weight %. Said BOF steel slag particles have a size between 0 and 11 mm, wherein preferable size and content of the particles used in the bituminous coating composition is as follows: particles having a size from 0 to 5 mm - from 39.6 to 44.3 weight %; particles having a size from 2 to 5 mm - from 0 to 12.2 weight %; particles having a size from 5 to 8 mm - from 14.1 to 19.6 weight %; particles having a size from 8 to 11 - from 20.7 to 23.3 weight %.

Description

BITUMINOUS COATING COMPOSITION
Technical Field
The invention relates to coating compositions based on bituminous materials, more particularly, to bituminous coating compositions, which can be used for roadway covering and pavement.
Background Art
It is known that presence or absence of natural resources in a particular geographical region largely dictates the choice of building materials, as well as the total cost of the final product. In some cases, the replacement of traditional building materials with non-traditional ones can significantly reduce the cost and improve the technical characteristics of the final product.
Traditional components of asphalt coatings of roads are bitumen, dolomite aggregates, crushed quartz and mineral filler. The road building industry in some countries strives to utilize the local aggregates because the physical-mechanical characteristics of most of the materials do not meet the normative requirements.
At the same time, the industries of steel manufacturing and production of the crashed dolomites struggle to use the co-products of the production. For instance, during the recent years, huge quantities of technological waste, such as steel slag and very fine crushed dolomite sand waste that need to be recycled with maximum efficiency, have accumulated in Latvia.
The European Slag Association suggests using steel slag i.a. for producing asphalt coatings (The European Slag Association: „EUROSLAG" 2006. Legal status of slags. Position paper: http://www.euroslag.com.).
Earlier studies of inventors of present invention (V.Haritonovs et. al. Performance Characterization of Bituminous Mixtures with Dolomite Sand Waste and BOF Steel Slag Aggregates. Constructions Science. 2012/13; 11-16; V.Haritonovs et. al. Performance based evaluation on the use of different waste materials in asphalt. Procedia 48 (2012); 154-162) disclose testing results of dense graded asphalt concrete AC 11 mixtures made of four types of aggregate: steel slag, dolomite sand waste, conventional imported dolomite aggregates and conventional local crushed quartz sand that were proportioned to develop a mixture that would satisfy the requirements of permanent deformation and stiffness. Analysis of the results showed that mixes with steel slag and dolomite waste sand or unconventional aggregate combination with dolomite in coarse portion, crushed quartz sand in sand portion and dolomite waste sand in sand and filler portions had high resistance to plastic deformations.
There is also known a process for preparing, starting from a slag material, a filler for use in construction materials which contain bitumen or a hydraulic binding agent (patent EP 2160367). The process comprises the steps of removing from the slag material a finer fraction formed by particles of a size between 0 and at least 0.75 mm so as to reduce the γ-dicalcium silicate content of the slag material; and the step of finely milling at least a portion of the remaining coarser fraction of the slag to obtain the filler of which at least 50% by weight is formed by particles not bigger than 63 μιη.
There is known asphalt-concrete mixture for road building (patent RU 2214979) comprising bitumen, slag of electric steel smelting production containing 24.5-25.7 wt.-% of particles of fraction 0.071-0.14 mm, 10-11 wt.-% of fraction less than 0.071 mm and sandy-rubble mixture of quartzite- sandstone of fraction 0-155 mm as a filling agent, wherein said components are taken in the following ratio, wt.-%: bitumen, 7.4-8.3; slag of electric steel smelting production of fraction 0-15 mm, 39.0-44.0; sandy-rubble mixture of quartzite- sandstone of fraction 0-155 mm, 47.7-53.6.
There is known asphalt-concrete mixture (patent application EA 201101508) containing bitumen, crushed stone, natural or crushed sand and mineral powder, such as wastes from production of nonferrous metals and chalky flour at the ratio from 1:2.3 to 1: 1.5, with the total content of Fe and Al oxides of not more than 7%, with the following ratio of components, wt %: oil bitumen - 5.2-5.7, crushed stone - 19.0-23.5, grinding siftings - 47.2-52.1, natural sand - 17.9-19.0, mineral powder - 4.7-5.7.
Disclosure of Invention
The goal of the invention is to develop a bituminous coating composition which would be inexpensive in manufacturing and resistant to heavy transport load.
The set goal is achieved by offered bituminous coating composition comprising bitumen (from 6.0 to 6.8 weight % of the bituminous coating composition components' total weight), basic oxygen furnace (BOF) steel slag (from 87.1 to 87.9 weight % of the bituminous coating composition components' total weight) and mineral filler (from 6.0 to 6.1 weight % of the bituminous coating composition components' total weight). The preferable mineral filler used is dolomite mineral filler. The bitumen used in experiments was bitumen B70/100 and bitumen B60/90.
The BOF steel slag particles used in the offered coating have a size between 0 and 11 mm, wherein their preferable size and content was as follows: (i) steel slag particles having a size from 0 to 5 mm - from 39.6 to 44.3 weight % of the bituminous coating composition components' total weight, (ii) steel slag particles having a size from 2 to 5 mm - from 0 to 12.2 weight % of the bituminous coating composition components' total weight, (iii) steel slag particles having a size from 5 to 8 mm - from 14.1 to 19.6 weight % of the bituminous coating composition components' total weight, (iv) steel slag particles having a size from 8 to 11 - from 20.7 to 23.3 weight % of the bituminous coating composition components total weight. The BOF steel slag used in experiments had the following chemical composition: CaO - from 25 to 35 weight , MgO - from 15 to 20 weight , Si02 - from 15 to 23 weight , MnO - from 5 to 7 weight , A1203 - from 4 to 6 weight , Ti02 - from 0.1 to 1 weigh , FeO - from 15 to 19 weight %.
The physical and mechanical properties of steel slag used are summarized in Table 1 and Table 2.
Table 1
Testing results of 8-11 mm fraction of BOF steel slag used according to the present invention
Figure imgf000004_0001
The test results of steel slag main properties show very low flakiness index - 2, excellent mechanical strength with average LA value of 19, high frost resistance with average MS value of 3, low fines content - 0.5% and slag expansion tests showed that the expected swelling should be negligible. Table 2
Testing results of 0-5 mm and 2-5 mm fractions of BOF steel slag used according to the present invention
Figure imgf000005_0001
Testing results of BOF steel slag showed that fractioned BOF steel slag characteristics correspond to highest quality requirements of standard LVS EN 13043 (Aggregates for bituminous mixtures and surface treatments for roads, airfields and other trafficked areas).
The bitumen used in experiments (unmodified bitumen B60/90 and Polymer Modified Bitumen B70/100 - modified with Styren-Butadien-Styren) had the properties as show in Table 3.
Table 3
Properties of bitumen used for preparing the offered bituminous coating
Figure imgf000005_0002
The mineral filler used had Methylene blue value less than 10 g/kg, water content less than 1 weight % and calcium carbonate having content of 90 weight %. Size grading requirements are as follows: mineral filler passing rate through the sieve having size of 2 mm - 100%; filler passing rate through the sieve having size of 0,125 mm - from 85 to 100%; filler passing rate through the sieve having size of 0,063 mm - from 70 to 100%.
The Marshall mix design procedure was used for the determination of the optimal bitumen content for the reference mixture, considering the mixture test results for Marshall stability and flow, as well as the volumetric values: air voids (V), voids in mineral aggregate (VMA) and voids filled with bitumen (VFB). Test specimens for Marshall Test had the shape of cylinder with diameter of 101mm and height range from 62.5to 64.5mm. All of them were prepared in the laboratory by impact compactor according to LVS EN 12697-30 with 2x50 blows of hammer 140°C temperature.
Dense graded bituminous coating mixtures have been designed by using bitumen
(B70/100 and B60/90), basic oxygen furnace (BOF) steel slag and mineral filler as per Table 4. The proposed bituminous coating composition is produced as follows. Aggregate materials (dry mineral materials, BOF steel slag) are being loaded in the cold feed bins. Bitumen is stored in heated storage tank at a temperature, which corresponds to the mixing temperature of the bitumen. Mineral filler is stored in silos and dust is stored in baghouse. Adhesion additives are stored in accordance to the manufacturer requirements. Aggregates are primarily dosed (e.g. by flow rate and feeder speed) and carried to the aggregate drier/heater. Aggregates undergo drying/heating process (e.g. in the heating drum). The rotation speed and the burner flame are adjusted to reach the required mixing temperature. When the aggregate is discharged from the dryer/heater unit, it is transported to screening unit. Sieves of appropriate sizes must be used to reach the desired particle size distribution of aggregates. After screening the materials are separated temporarily in hot storage bins. Each aggregate fraction is withdrawn from storage bins and individually weighed to the required quantity to predetermined amount to reach the required particle size distribution of the mixture. The weighed aggregates are released into the pugmill together with filler and/or the collected dust from the baghouse. The blades in pugmil start mixing the aggregates. Bitumen is introduced in the pugmill and mixed homogeneously with the aggregates. The mixing time depends on the efficiency of the pugmill and usually varies between 30 and 60 seconds. The asphalt mixture is discharged directly into hot storage bins (tower plant) or in a cart, which transports asphalt to the hot storage bins. Table 4
Composition of the offered bituminous coating
Figure imgf000007_0001
Voids content of all samples: 2-4.
All the combinations were tested for physical and mechanical (wheel tracking test and stiffness) characteristics.
Table 5
Characteristics of the offered bituminous coating obtained according examples shown in Table 4.
Figure imgf000007_0002
Resistance against permanent deformation was determined according to standard LVS EN 12697-22 method B (wheel tracking test with small size device in air). This test method is designed to replicate the stress conditions observed in the field therefore can be categorised as simulative. The bituminous coating resistance to permanent deformation was assessed by the depth of the track and its increments caused by repetitive cycles (26.5 cycles per minute) under constant temperature (60°C). The rut depths were monitored by means of two linear variable displacement transducers, which measure the vertical displacements of each of the two wheel axles independently as rutting progresses.
Rectangular shape specimens with the base area of 305x305mm have been prepared for the test by using roller compactor according to LVS EN 12697-33. Thickness of the tested specimens conforms to that of the traditional pavement surface layer - 40mm. The test assesses three parameters: wheel tracking slope (WTSAIR), which is defined as increase of depth of wheel track per 1000 test cycles; rut depth (RDAIR) which is the accumulated permanent deformation after 10000 cycles and proportional rut depth (PRDAIR) which is the relative depth of wheel track after 10000 test cycles in proportion to the test specimen thickness.
Table 6
Characteristics of wheel tracking test bituminous coatings
Figure imgf000008_0001
The bituminous coating, which was produced according to present invention shows surprisingly good resistance to permanent deformations, having an average rut depth value of 1.54 mm and wheel tracking slope of 0.12 mm/1000 cycles.

Claims

Claims
1. Bituminous coating composition comprising: bitumen, steel slag and mineral filler, characterized in that it comprises: bitumen from 6.0 to 6.8 weight , basic oxygen furnace (BOF) steel slag from 87.1 to 87.9 weight % and mineral filler from 6.0 to 6.1 weight %.
2. The composition according to claim 1, characterized in that BOF steel slag particles have a size between 0 and 11 mm, wherein preferable size and content of the BOF steel slag particles used in the bituminous coating composition is as follows:
- particles having a size from 0 to 5 mm - from 39.6 to 44.3 weight % of the bituminous coating composition components total weight,
- particles having a size from 2 to 5 mm - from 0 to 12.2 weight ,
- particles having a size from 5 to 8 mm - from 14.1 to 19.6 weight ,
- particles having a size from 8 to 11 - from 20.7 to 23.3 weight %.
3. The composition according to claim 1 or 2, characterized in that bitumen is selected from the group containing bitumen B70/100, bitumen B60/90.
4. The composition according to any preceding claims, characterized in that mineral filler is dolomite mineral filler.
5. The composition according to any preceding claims, characterized in that BOF steel slag has the following chemical composition: CaO - from 25 to 35 weight , MgO - from 15 to 20 weight %, Si02 - from 15 to 23 weight %, MnO - from 5 to 7 weight %, A1203 - from 4 to 6 weight , Ti02 - from 0.1 to 1 weigh , FeO - from 15 to 19 weight %.
6. A pavement containing bituminous composition according to any preceding claims.
PCT/EP2012/073284 2012-11-22 2012-11-22 Bituminous coating composition WO2014079496A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2012/073284 WO2014079496A1 (en) 2012-11-22 2012-11-22 Bituminous coating composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2012/073284 WO2014079496A1 (en) 2012-11-22 2012-11-22 Bituminous coating composition

Publications (1)

Publication Number Publication Date
WO2014079496A1 true WO2014079496A1 (en) 2014-05-30

Family

ID=47263305

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/073284 WO2014079496A1 (en) 2012-11-22 2012-11-22 Bituminous coating composition

Country Status (1)

Country Link
WO (1) WO2014079496A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2558617A1 (en) * 2014-08-04 2016-02-05 Universidad De Burgos Draining bituminous mixture with white slag residue from ladle furnace (Machine-translation by Google Translate, not legally binding)
CN107902959A (en) * 2017-11-03 2018-04-13 中冶宝钢技术服务有限公司 A kind of pitch depletion layer and its preparation method and application
CN109535748A (en) * 2018-10-31 2019-03-29 广西交通职业技术学院 A kind of composite modified pitch of high-performance mineral and preparation method
CN114853377A (en) * 2022-05-10 2022-08-05 无锡市城市道桥科技有限公司 Modification process of steel slag asphalt mixture

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2214979C1 (en) 2002-06-11 2003-10-27 ГОУВПО Воронежский государственный архитектурно-строительный университет Asphalt-concrete mixture for road building
CN1209315C (en) * 2003-07-25 2005-07-06 武汉钢铁集团冶金渣有限责任公司 Steel scoria mastic detritus asphaltum concrete and method for preparing the same
EP2160367A1 (en) 2007-05-31 2010-03-10 Recmix Belgium Process for preparing a filler for asphalt or concrete starting from a slag material
EA201101508A1 (en) 2011-03-14 2012-09-28 Федеральное Государственное Автономное Образовательное Учреждение Высшего Профессионального Образования "Сибирский Федеральный Университет" ASPHALT-CONCRETE MIXTURE

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2214979C1 (en) 2002-06-11 2003-10-27 ГОУВПО Воронежский государственный архитектурно-строительный университет Asphalt-concrete mixture for road building
CN1209315C (en) * 2003-07-25 2005-07-06 武汉钢铁集团冶金渣有限责任公司 Steel scoria mastic detritus asphaltum concrete and method for preparing the same
EP2160367A1 (en) 2007-05-31 2010-03-10 Recmix Belgium Process for preparing a filler for asphalt or concrete starting from a slag material
EA201101508A1 (en) 2011-03-14 2012-09-28 Федеральное Государственное Автономное Образовательное Учреждение Высшего Профессионального Образования "Сибирский Федеральный Университет" ASPHALT-CONCRETE MIXTURE

Non-Patent Citations (9)

* Cited by examiner, † Cited by third party
Title
AHMEDZADE P ET AL: "Evaluation of steel slag coarse aggregate in hot mix asphalt concrete", JOURNAL OF HAZARDOUS MATERIALS, ELSEVIER, AMSTERDAM, NL, vol. 165, no. 1-3, 15 June 2009 (2009-06-15), pages 300 - 305, XP026053712, ISSN: 0304-3894, [retrieved on 20090416], DOI: 10.1016/J.JHAZMAT.2008.09.105 *
ANNA MLADENOVIC ET AL: "Application of steel slag aggregate in road construction", 17 September 2009 (2009-09-17), pages 1 - 50, XP055064345, Retrieved from the Internet <URL:www.fehrl.org> [retrieved on 20130528] *
KARL-ULRICH KÖHLER: "Slag: A sound choice in favour of ecology", 28 August 2008 (2008-08-28), Duisburg, Germany, pages 1 - 36, XP055014235, Retrieved from the Internet <URL:http://www.fehs.de/_media/pdf/flyer/slag_english.pdf> [retrieved on 20111208] *
U. BAGAMPADDE ET AL: "OPTIMIZATION OF STEEL SLAG AGGREGATES FOR BITUMINOUS MIXES IN SAUDI ARABIA", JOURNAL OF MATERIALS IN CIVIL ENGINEERING / FEBRUARY 1999, 1 February 1999 (1999-02-01), pages 30 - 35, XP055064305, Retrieved from the Internet <URL:http://ipac.kacst.edu.sa/edoc/eBook/1601.pdf> [retrieved on 20130528] *
V.HARITONOVS: "Performance based evaluation on the use of different waste materials in asphalt", PROCEDIA, vol. 48, no. 2012, 2012, pages 154 - 162, XP055064264 *
V.HARITONOVS: "Performance based evaluation on the use of different waste materials in asphalt", PROCEDIA, vol. 48, no. 2012, pages 154 - 162, XP055064264, DOI: doi:10.1016/j.sbspro.2012.06.996
V.HARITONOVS: "Performance Characterization of Bituminous Mixtures with Dolomite Sand Waste and BOF Steel Slag Aggregates", CONSTRUCTIONS SCIENCE, vol. 13, 2012, pages 11 - 16
V.HARITONOVS: "Performance Characterization of Bituminous Mixtures with Dolomite Sand Waste and BOF Steel Slag Aggregates", CONSTRUCTIONS SCIENCE, vol. 13, 2012, pages 11 - 16, XP002697779 *
WU ET AL: "Utilization of steel slag as aggregates for stone mastic asphalt (SMA) mixtures", BUILDING AND ENVIRONMENT, PERGAMON PRESS, OXFORD, GB, vol. 42, no. 7, 23 February 2007 (2007-02-23), pages 2580 - 2585, XP005901479, ISSN: 0360-1323, DOI: 10.1016/J.BUILDENV.2006.06.008 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2558617A1 (en) * 2014-08-04 2016-02-05 Universidad De Burgos Draining bituminous mixture with white slag residue from ladle furnace (Machine-translation by Google Translate, not legally binding)
CN107902959A (en) * 2017-11-03 2018-04-13 中冶宝钢技术服务有限公司 A kind of pitch depletion layer and its preparation method and application
CN109535748A (en) * 2018-10-31 2019-03-29 广西交通职业技术学院 A kind of composite modified pitch of high-performance mineral and preparation method
CN114853377A (en) * 2022-05-10 2022-08-05 无锡市城市道桥科技有限公司 Modification process of steel slag asphalt mixture

Similar Documents

Publication Publication Date Title
CA2820167C (en) System and method for manufacturing asphalt products with recycled asphalt shingles
US8894321B2 (en) Warm mix asphalt
Silvestre et al. Using ceramic wastes from tile industry as a partial substitute of natural aggregates in hot mix asphalt binder courses
Ahmed et al. Effect of using waste cement dust as a mineral filler on the mechanical properties of hot mix asphalt
Muniandy et al. Effect of mineral filler type and particle size on the engineering properties of stone mastic asphalt pavements
Colonna et al. Application of bottom ash for pavement binder course
Wasilewska et al. Evaluation of different mineral filler aggregates for asphalt mixtures
AL-Saffar The Effect of Filler Type and Content on Hot Asphalt Concrete Mixtures Properties.
Jain et al. Mitigation of rutting in bituminous roads by use of waste polymeric packaging materials
CN102531471A (en) Emulsified asphalt, mixed material containing same and road surface formed by mixed material
Kadhim et al. An evaluation of the effect of crushed waste glass on the performance of cold bituminous emulsion mixtures
WO2014079496A1 (en) Bituminous coating composition
Rasel et al. Performance evaluation of brick chips as coarse aggregate on the properties of bituminous mixes
Wagaw et al. Evaluation of the performance of brick dust as a filler material for hot asphalt mix design: a case study in Jimma zone
Al-ammari et al. The effect of aggregate and compaction method on the physical properties of hot mix asphalt
Osuolale et al. Performance evaluation of bamboo leaf ash and steel slag powder as alternative filler in asphaltic mixes
Choudhary et al. Use of industrial wastes as filler in open-graded friction courses
De Farias et al. Influence of asphalt rubber on the crushing of recycled aggregates used in dense HMA
Nguyen et al. Investigation of using steel slag in hot mix asphalt for the surface course of flexible pavements
Anochie-Boateng et al. Use of waste crushed glass for the production of hot-mix asphalt
Shuaibu et al. Properties of Asphalt concrete containing Waste foundry Sand (WFS) as Filler material
Cesare et al. Application of mining waste powder as filler in hot mix asphalt
Mikoč et al. Influence of slag, fly ash and silica fume on the mechanical and physical properties of asphalt
WO2013017892A1 (en) Improvements in and relating to bituminous paving
Nazarinasab et al. Performance improvement of porous asphalt mixtures using crumb rubber and steel slag powder

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12794262

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12794262

Country of ref document: EP

Kind code of ref document: A1