Materials Mix Design and Quality Control

Paper by FOGACCIA URSELLA from ISCR 7th 1994 Vienna Austria

A system for assessing the materials used for the construction of a concrete road is presented. The materials constituting the three layers of the pavement -ely stabilised granular mix, cement-bound mix, concrete and porous concrete for the road shoulders- were accurately selected and subjected to thorough controls during construction. The local climatic conditions as well as precautions taken to ensure the concrete durability recommended an accurate selection of the admixtures to be used. Roughness was ensured with an exposed aggregate surface. Two years after its completion, the pavement is in perfect conditions with regular cracks distant 1,40 to 1,60 m.

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