Asphalt & Asphalt Mixtures High and Low Temperature Testing Machine
Bitumen & Bituminous Mixtures High and Low Temperature Testing Machine
1. Introduction
→Used in tensile, compression, bending tests for highway engineering asphalt, asphalt mixtures at -15℃~+60℃.
→Applicable in modified asphalt, elastomer modified asphalt, asphalt base,petroleum asphalt, liquid petroleum asphalt,emulsified asphalt, hot-mixed bituminous mixtures,cold-mixed bituminous mixtures,modified asphalt mixtures,flexible base,semi-rigid base, rigid base, asphalt pavement,etc.
→Used in T0713-2000 Uniaxial compression test for bituminous mixtures (cylinder method Ø100*100mm): deflection compressive modulus of resilience (20℃±0.5℃ ), bending stress and compressive modulus of resilience (15℃±0.5℃),compression strength.
→Used in T0714-1993 Uniaxial compression test for bituminous mixtures (prism method 40*40*80mm): crack resistance for bituminous mixtures at low temperature (-10℃±0.5℃), compression stress, compression deformation.
→Used in T0715-2011 Bending test for bituminous mixtures (15℃±0.5℃):prism beam (250*30*35mm), bending test, tensile property for asphalt mixtures at low temperature (-10℃±0.5℃), mx.break load, bending strength.
→T0716-2011 Split test for bituminous mixtures(15℃±0.5℃): cylinder (Ø100x40mm、Ø101.6x63.5mm、Ø150x40mm), creak property test for asphalt mixtures at low temperature(-10℃±0.5℃),vertical deformation,horizontal deformation 0.001mm, load-horizontal deformation curve, load-vertical deformation curve, crack tensile strength, tensile strain, pisson`s ratio.
Test Standards
→JTG E20-2011 Standard Test Methods of Bitumen and Bituminous Mixtures for Highway Engineering
→JTG D50 Specifications for Design of Highway Asphalt Pavement
→JTG D30-2015 Specifications for Design of Highway Subgrades
→JTG F40 Technical Specifications for Construction of Highway Asphalt Pavement
2. Technical Specifications
WDW-LQ50/LQ100
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No.
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Inspection items
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Technical specifications
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1
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Max. load
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50kN/100kN
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2
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Load grade
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Class 0.5/ Class 1
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3
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measuring range of load
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0.4%-100% / 1%-100%
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4
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Relative error of indicating value
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±0.5%
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5
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Load resolution
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1/±300000F.S
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6
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Measuring range of deformation
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0.2%~100%F.S
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7
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Deformation resolution
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0.001mm
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8
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Speed range of load
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0.005%-5%FS/S
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9
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Speed accuracy of load
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If speed <0.05%FS, accuracy:±1% of the set value
If speed ≥0.05%FS, accuracy: within ±0.5% of the set value
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10
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Speed range of deformation
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0.005~5%FS/s
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11
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Speed accracy of deformation
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If speed<0.05%FS/s, accuracy: ±1% of the set value
If speed ≥0.05%FS/s, accuracy: within ±0.5%of the set value
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12
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Deformation resolution
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0.001mm
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13
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Displacement speed
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0.001-600mm/min
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14
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Speed accuracy of displacement
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Within ±0.2%of the set value
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15
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Loading mode
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Loading by mini computer
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16
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Span between columns
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610mm
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17
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Stroke of crosshead
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1400mm
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18
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Working voltage
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Loading machine: 220V±10% 50Hz
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Temperature cabinet: 380V±10% 50Hz
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19
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Motor power
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≈2.0kW+7.0kW
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20
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Dimension of loading frame (L*W*H)
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1080*2100*2320mm
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High and low temperature cabinet
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21
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Working temperature/accuracy
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-15℃~+60℃/±0.5 ℃
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22
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Temperature rising and falling speed
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RT+10℃~60℃/≈40min;RT+10℃~-15℃/≈20min
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23
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Dimension of working cabinet (W*H*D)
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Approx. 450*500*400mm
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