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Thermal expansion of bitumen-mineral compositions

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Abstract

The article presents the results of investigations of the thermal expansion of bitumen-mineral compositions and their components of different origin, carried out with newly developed dilatometers.

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Abbreviations

Pc :

index of the property of the composition

Pm, Pn, Pi :

indices of the properties of the components of the composition

Vm, Vn, Vi :

volumes of the components of the compositions

Vc :

volume of the composition

Vf :

volume of the filler

Vb :

volume of the bituminous binder

Vp :

volume of pores

βc, βf, βb :

thermal coefficients of volume expansion of composition, filler, and bituminous binder

Kb, Kf :

volumetric moduli of elasticity of bituminous binder and filler

Gb :

shear modulus of bituminous binder

T bg , T cg :

glass-transition temperatures of bituminous binder and composition

T b1 , T2/b :

temperatures of beginning and end of the glass transition of bitumen

T c1 , T c2 :

temperatures of beginning and end of the glass transition of composition

T cF :

fluidity temperature of the composition

α f,α b :

linear thermal expansion coefficients of filler and bituminous binder

α1e, α2e, α3e :

linear thermal expansion coefficients of composition at temperatures above T cF , in the interval T cF -T cg , and below T cg , respectively, found experimentally

α M1t , α M2t , α M3t :

the same, found theoretically by the equation for a mixture

α c1t , α c2t , α c3t :

the same, found theoretically by Kerner's equation

k2, k3 :

coefficients taking into account the effect of the filler surface on the thermal expansion of the bituminous binder in the temperature interval TF/c-Tg/c and below T cg

Literature cited

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Authors and Affiliations

  1. Bashkirian Research Institute of Petroleum Processing, Ufa

    B. G. Pechenyi & A. I. Spivak

Authors
  1. B. G. Pechenyi
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  2. A. I. Spivak
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Additional information

Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 37, No. 5, pp. 886–893, November, 1979.

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Pechenyi, B.G., Spivak, A.I. Thermal expansion of bitumen-mineral compositions. Journal of Engineering Physics 37, 1346–1351 (1979). https://doi.org/10.1007/BF01102234

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  • DOI: https://doi.org/10.1007/BF01102234

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