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دانلود رایکان مقاله انگلیسی ISI با موضوع آزمایش سه محوری و وارفتگی تنش در بتن آسفالتی

عنوان فارسی مقاله:

آزمایش سه محوری و وارفتگی تنش در بتن آسفالتی

عنوان انگلیسی مقاله:

Triaxial testing and stress relaxation of asphalt concrete

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بخشی از مقاله انگلیسی :

3. Modeling of asphalt concrete

Asphalt concrete consists of aggregates of different sizes and percentage mixed together with asphalt. The specific influence of different sizes and shapes of the aggregates on the overall mechanical behavior of asphalt concrete is still an unresolved issue. Hence, at this point of time, it would suffice to assume that the overall mechanical behavior of asphalt concrete is essentiallymade up of the mechanical behavior of asphalt mastic (asphalt and filler particles) and aggregate matrix. In the present development, we neglect the influence of air voids and their reduction. Hence the modeling attempt consists in proposing constitutive equations for a constrained mixture of aggregate matrix and asphalt mastic each with different natural configurations.