1、2022-4-15中国第五届国际沥青峰会312452022-4-15中国第五届国际沥青峰会2022-4-15中国第五届国际沥青峰会2022-4-15中国第五届国际沥青峰会Y Black, Viscous, Semi-solid MatirialY High Molecular WT. Hydrocarbons (Asphaltene) Disperse In Maltens or Petrolenes Asphaltene (n-heptaneinsoluble)，Saturates，NaphtheneAromatics，Polar Aromatics ，High sulphurcrude /
2、 Bituminous crudeY A binder (i.e. glue) holding aggregates together in paving Y Among the more important properties considered: Adhesion Visco-elastic property, consistent at all temperatures to Prevent rutting and cracking Moisture resistance Chemically stable/consistent Pure and homogeneous2022-4-
3、15中国第五届国际沥青峰会减压塔常压塔原油常压炉减压炉常一线常二线常三线减一线减二线减三线减四线轻质产品或二次轻质产品或二次加工原料加工原料丙烷脱沥青沥青调和组分沥青调和组分DOA调和特种沥青沥青专用料DAO二次加工原料二次加工原料2022-4-15中国第五届国际沥青峰会2022-4-15中国第五届国际沥青峰会Crude Feedstocks for BitumenYThere are 1,500 to 2,000 crude grades worldwide Y Natural bitumen content varies enormouslyY Every crude has a diff
4、erent compositionY Every bitumen derived from different crudes has different physical/chemical characteristics2022-4-15中国第五届国际沥青峰会Y API (Weight): Generally prefer heavy over mid-weight crudes. Y Low Wax Content: Not a hard and fast rule, but generally no more than 4%. This excludes most of Asia-Paci
5、fic crude production.Y Reasonable Balance Aromatics/Asphaltenes: This usually has aromatics at a maximum 20% in base material. No hard and fast rule exists.Y Minimum Asphaltene Level: Usually preferred range of 10-20%; otherwise instabilityY Non-Crude Feedstock: Of course, bitumen can also be produc
6、ed from residual (long or short) rather than from a crude.选择合适的原油，是生产沥青最经济有效的手段选择合适的原油，是生产沥青最经济有效的手段2022-4-15中国第五届国际沥青峰会Some Crude Oil QualitiesAPI=141.5/d - 131.5 (其中其中d为为15.6的相对密度的相对密度)，API度度=32为轻质原油为轻质原油 API度度=20-32为中质原油为中质原油 API度度=10-20为重质为重质原油原油 API度度10为特重原油为特重原油中国生产沥青的国产原油主要有中国生产沥青的国产原油主要有SZ36
7、1，辽河欢喜岭、克拉，辽河欢喜岭、克拉玛依、塔河重油，玛依、塔河重油，API度在度在1620之间之间2022-4-15中国第五届国际沥青峰会Y Iraq: Mosul-KirkukY Iraq: South and Southeast of BaghdadY Egypt: Red Sea coast; near Nile DeltaY Iran: Bordering Iraq, from south Kermanshah to north of AbadanY Unsurprisingly the first major Mideast Gulf oil find was north of A
8、badan more than a century ago.2022-4-15中国第五届国际沥青峰会AH-90AH-70AH-50响响应应分子量分布趋势与平均分子量分子量分布趋势与平均分子量小小直馏工艺直馏工艺软软化化点点沥青切割温度沥青切割温度495度度450度度45度度60度度直馏工艺直馏工艺大大530度度2022-4-15中国第五届国际沥青峰会AH-90响响应应氧化工艺从氧化工艺从AH-90氧化到氧化到AH-50AH-50分子量分布趋势与平均分子量分子量分布趋势与平均分子量大大小小2022-4-15中国第五届国际沥青峰会沥青沥青1响响应应调和工艺调和工艺沥青沥青2分子量分布趋势与平均分子
9、量分子量分布趋势与平均分子量大大调和产品调和产品沥青沥青1响响应应调和工艺调和工艺沥青沥青2分子量分布趋势与平均分子量分子量分布趋势与平均分子量大大调和产品调和产品小小小小2022-4-15中国第五届国际沥青峰会Y原油选择的限制Y有限的改性手段不能满足规范要求Y特殊的工程需要Y提高性价比，提高资源的利用效率Y单体有关Y分子构成有关Y添加量有关Y添加方式有关Y是否加入第三剂有关（沥青本身的性质外）（沥青本身的性质外）2022-4-15中国第五届国际沥青峰会乳化沥青是乳化剂的作用下，沥青颗粒均匀分散在水乳化沥青是乳化剂的作用下，沥青颗粒均匀分散在水中形成的混合物，一般道路用乳化沥青水是连续相中形成
10、的混合物，一般道路用乳化沥青水是连续相2022-4-15中国第五届国际沥青峰会Source:Austroads(2008)2022-4-15中国第五届国际沥青峰会 Workability Performance At high temperature At low temperature Mixing temp Highest temp of design Lowest temp of designBitumen long-term agingBitumen short-term aging2022-4-15中国第五届国际沥青峰会YPenetration (Pen 25C )YViscosit
11、y (Vis 60)YPerformance Grade (PG)2022-4-15中国第五届国际沥青峰会2022-4-15中国第五届国际沥青峰会Ybased on viscosity at 60 .YMinimum requirement of kinematic viscosity at 135 to establish proper mixing & compaction temperature.YMinimum absolute viscosity at 60 to ensure adequate resistance to Rutting.YStiffness at average
12、annual temperature 25 to address fatigue cracking. 2022-4-15中国第五届国际沥青峰会PGY Super pave Performance Grading (PG): ASTM D-6373-00Y PG is based on engineering principles to address Common pavement distresses Rutting, Fatigue Cracking and thermal cracking.Y Physical properties are measured by specified e
13、quipments which directly relates to field performance.Y Bitumen are classified based on climatic conditions. For example PG 64-22 grade means that the bitumen is suitable for project location where 7 days max temperature of pavement is 64 and 7days min. temperature -22 .2022-4-15中国第五届国际沥青峰会YDynamic
14、Shear Rheometer(DSR), ASTM D 6373-07YOriginal Binder Dynamic shear, G*/Sinmin 1.00 kPa ,Test Temp;YRTFO-Aged Binder Dynamic shear, G*/Sin, min 2.20 kPa, Test Temp;YPAV-Aged Binder YDynamic shear, G*. Sin , max 5000 kPa, Test Temp;YBending Beam Rheometer(BBR), ASTM D 6648-08 Creep stiffness, max 300
15、MPa m-value, min 0.300, Test Temp YDirect Tension Tester (DTT), ASTM D 6723-02 Direct Tension, failure strain, min 1%,Test Temp at 1 mm / min pull;YRotational Viscometer (RTV) ASTM D 4402-02 , viscosity at 135max 3 Pa.s, YFlash Point, ASTM D-92, minimum Temperature, 230 2022-4-15中国第五届国际沥青峰会Evaluatio
16、n system in Chinasoftening point ductility rutting fatigue thermal crackingTFOTClassification based on penetration2022-4-15中国第五届国际沥青峰会Range to specifiedHigh: softening pointLow: temperature to measure ductilityEvaluation system in China2022-4-15中国第五届国际沥青峰会Evaluation system in ChinaBitumen(On the bas
17、is of usage)For pavement (85%)For building (10-15%)For special conditions (5%)2022-4-15中国第五届国际沥青峰会Evaluation system in ChinaPaving BitumenHeavy Traffic BitumenMiddle and Light Traffic BitumenEmulsified BitumenModified BitumenFlame Retardant Bitumen2022-4-15中国第五届国际沥青峰会Paving BitumenHeavy Traffic (GB/
18、T15180)used to high grade road, including expressway, first and second class road, the highway in cityMiddle and Light Traffic (SH0522)mainly used to the road under second class2022-4-15中国第五届国际沥青峰会Standard numberStandard gradeDraw or revisePetroleum industry1954 draw, first-release Petroleum industr
19、y1956 confirmSYB 1811-1959 paving bitumenPetroleum industry1959 confirmSYB 1661-1962 paving bitumenPetroleum industry1962 reviseSYB 1661-1977 paving bitumenPetroleum industry1977 reviseSYB 1661-1985 paving bitumenPetroleum industry1985 reviseSH 0522-1992 paving bitumenPetrol-chemicalReplace SYB1661-
20、1985SH 0522-1998 paving bitumenPetrol-chemical1998 confirmSH 0522-2000 paving bitumenPetrol-chemical2000 confirmSH 0522-2010 paving bitumenPetrol-chemicalRevise (present)GB/T151801994 Heavy TrafficNationaldrawGB/T15180-2000 Heavy TrafficNationalrevise (present)2022-4-15中国第五届国际沥青峰会SH0522-2010 Paving
21、Bitumen2022-4-15中国第五届国际沥青峰会Specification of Bitumen for Heavy Traffic Pavements (GB/T15180-2000) Technical RequirementsAH130AH110AH90AH-70AH-50Test MethodPenetration, 1/10mm（25,100, 5s）1201401001208010060804560GB/T4509Ductility, cm(15,5cm/min) 100 100 100 100 80GB/T4508 Soft Point,384840504252445445
22、55GB/T4507Solubility in chloroform, %99GB/T11148 Flash point, 230GB/T267 Wax content, % 3.0SH/T0425Density, g/cm3 ReportGB/T8928TFOT GB/T5304 Mass loss, % 1.3 1.2 1.0 0.8 0.6 Ratio of penetration, %4548505558 Ductility (25), cm 75 75 75 50 40 Ductility (15) Report 2022-4-15中国第五届国际沥青峰会Specification of Bitumen for Heavy Traffic Pavements (GB/T15180-201X)2022-4-15中国第五届国际沥青峰会2022-4-15中国第五届国际沥青峰会2022-4-15中国第五届国际沥青峰会2022-4-15中国第五届国际沥青峰会2022-4-15中国第五届国际沥青峰会642022-4-15中国第五届国际沥青峰会122022-4-15中国第五届国际沥青峰会122022-4-15中国第五届国际沥青峰会单击此处编辑副标题单击此处编辑副标题
