AC13目标配合比设计报告.xls

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1、 AddisAddis Ababa-AdamaAbaba-Adama TollToll MotorwayMotorway ProjectProjectTargetTarget ProportioningProportioning DesignDesign ReportReport ofof AsphaltAsphalt ConcreteConcrete ForFor BinderBinder Course(Course( AC-13C)AC-13C)Lab Ref No : AA-TPD-120201Consultants : Beijing Expressway Supervision Co

2、.LtdContractor : China Communications Construction Company Ltd Specification Used in Design Author or AgencyTitleDocument or Report NoYear of ImplementationAddis Ababa-Adama Toll Motorway Pavement Design Drawing2011Ministry of Communications of The Peoples Republic of ChinaTechnical Specification Fo

3、r Construction of Highway Asphalt PavementsJTG F40-20042004Test Methods of Aggregate for Highway EngineeringJTJ E42-20052005Standard Test Methods of Bitumen And Bituminous For Highway EngineeringJTJ 052-20002000-1Test Result of MaterialMaterial NameSourceIndex of TestResult of Test RequiredIndex of

4、TestResult of Test Required(1018) AggregateK10+200QuarryAggregate Crushed Value (ACV)13.526%Wearing Ratio (LAA)11.928%Flat and Elongated Index Total Aggregate12.115%Soundness of Aggregate 412%9.5mm 10.112%Grade of adhesion (Stripping)559.5mm 10.512%Grade of adhesion (Stripping)100cm Solubility 99.71

5、99.5%Flash Point319260oC Loss of weight0.030.8%Submit by : Checked by: Witness by: Supervisor:Contractors representative Material Engineer(Contractor) Consultants representative Material Engineer(Consultant) DensityFind out asphalt-aggregate ratio range that meet the requirements of asphalt concrete

6、 indexes(OACmax,OACmin) , the average value of the range is OAC2;If OAC1 between the OACmax and OACmin ,that the design practical ;Take OAC1 and OAC2 median value as the optimum asphalt-aggregate ratio of target proportioning design;Combined with local climate characteristics and the actual situatio

7、n , finally get the optimum asphalt-aggregate ratio.3.52.4974.02.5173.522.509093.58.44.52.544.023.288334.06.65.02.5714.524.6094.55.25.52.575.022.5555.03.45.517.65.52.93.515.1093.516.6094.014.811113.544.4094.019.520204.514.54.055.365654.521.2095.013.84.564.1095.026.240405.514.35.075.375755.531.55.579

8、.96.0 5.5 5.0 4.5 4.0 3.5 3.0 1718192021222324256.0 5.5 5.0 4.5 4.0 3.5 3.0 2.4722.4922.5122.5322.5522.5726.0 5.5 5.0 4.5 4.0 3.5 3.0 0.0 2.0 4.0 6.0 8.0 10.0 Asphalt Aggregate Ratio(%)Asphalt Aggregate Ratio(%)Asphalt Aggregate Ratio(%)6.0 5.5 5.0 4.5 4.0 3.5 3.0 15202530354045lo wAsphalt Aggregate

9、 Ratio(%)6.0 5.5 5.0 4.5 4.0 3.5 3.0 10.0 12.0 14.0 16.0 Asphalt Aggregate Ratio(%)M A6.0 5.5 5.0 4.5 4.0 3.5 3.0 40.0 50.0 60.0 70.0 80.0 90.0 100.0 Asphalt Aggregate Ratio(%)Submit by : Checked by: Witness by: Supervisor:Contractors representative Engineer representative Consultants representative

10、 Material Engineer(Consultant)According to the above diagram:a1=5.10%a2=4.50%a3=4.84%a4=4.76%OAC1=(a1+a2+a3+a4)/4=4.80%密度3.505.509090OACmin= 4.55%OACmax= 4.99%OAC2=(OACmin+OACmax)/2=4.77%稳定度3.505.507575OAC=(OAC1+OAC2)/2=4.78%孔隙率4.555.386060According to local climate and the actual situation,Take 4.8

11、%as optimum asphalt-aggregate ratio.流值4.155.504545间隙率3.55.53030饱和度4.544.991515最值4.554.554.994.99090090Result of DesignAccording to the analysis of experiment results, choose gradation as the design gradation, Aggregate ratio 1810：510：35:03：mineral filler=31% 25%9%34%1%Asphalt /Aggregate =4.8%；NZ adm

12、ixture =0.3%(External mixing method)；According to the above ratio produced Marshall sample, test results are as follows：Technical index of MixtureTest ResultRequiredTechnical index of MixtureTest ResultRequiredBulk Specific Gravity (g/cm3)2.561Effective Asphalt Volume Percentage (%)10.9Theoretical M

13、aximum Density (g/cm3)2.668Powder Binder Ratio (%)1.40.61.6Percent Air Voids (%)4.035Effective thickness of membrane(um)7.77Percent Void In Mineral Aggregate (%)14.0 14Marshall Stability (KN)22.38StabilityAir VoidsFlow ValueVMAVFAOACminOACmaxDensity6.0 5.5 5.0 4.5 4.0 3.5 3.0 Asphalt Aggregate Ratio

14、(%)Asphalt Aggregate Ratio(%)VFA (%)71.46575Flow Value (0.1mm)24.92040Effective Asphalt Content (%)4.34Marshall Module (KN/mm)9.0Submit by : Checked by: Witness by: Supervisor:Contractors representative Engineer representative Consultants representative Material Engineer(Consultant)Mix Design Dectec

15、tionAccording to the optimum asphalt-aggregate ratio 、gradation ； by immersion marshall test ,splitting test, dynamic stability test, modulus experiment；to check the performance of the Asphalt Concrete；test results are as follows：Admixture (Proportion)Asphalt /Aggregate Immersion StabilityResidual S

16、tability Splitting StrengthFreeze-Thaw (TSR)Modulus (MPa)Dynamic Stability(%)(KN)(%)(MPa)(%) (15oC) (20oC)(60oC/0.7MPa)NZ(0.3%)4.8%20.391.02.494.72497.81746.416310Required851.280210015002800 ConclusionThe Target Proportioning Design of asphalt mixture mechanical index, volume indicators meet the design specifications and drawings, this design can guide AC-13C Target mix ratio design.Submit by : Checked by: Witness by: Supervisor:Contractors representative Engineer representative Consultants representative Material Engineer(Consultant)