Poster Presentation

Paper ID : 1042-3NCCP

Department of Road and Geotechnics, Faculty of Civil Engineering, Yazd University

Concrete block pavement in the world due to the fast and easy operation, the possibility of passing traffic immediately after the pavement constraction, high strength and durability, the possibility of recycling blocks, environmental compatibility and beauty, today's common use is rapidly increasing. The purpose of this study was to investigate the effect of the base material and type on the performance of block concrete pavement. Typically, in the design of pavement concrete block, the thickness of the base layers is calculated. By increasing the tensile strain of the granular base layer, the number of permitted loading repetition decreases, so when the tensile strain increases from 0.001 macrostrain to 0.002, the number of repetitions of concrete block decreases by 20%. The effect of the modulus of elasticity of the cement-stabilized layer is very low ,less than 5%, in the number of repetition permitted (less than 5%), and the technical specification of this layer is affected by the thickness and compressive strength of this layer. Temperature variations in the bitumen-stabilized layer have a great effect on small tensile strains, but in high strains, this effect is not visible, therefore, in small thicknesses of this type of layer, temperature variations have no significant effect.

Base materials; Fatigue performance; Concrete pavement block; Tensile and compression strain

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