QUALITY CONTROL OF EARTH CONSTRUCTION FROM ENVIRONMENTAL PROGRESSIVE MATERIALS

Abstract

The article gives special attention to codified clauses of the road construction law, the relevant clauses of standards and technical regulations to design and control the quality of earth constructions built from alternative recycled material. It is important to provide compliance between the values of relevant characteristics used within the design procedure and the subsequent quality control of earth construction and unstabilized layers of roads. The article presents the authors’ suggestions to design of earth constructions of roads according to the Slovak technical standards, technical regulations and objectively determined results of research and development. Article also presents a comparison of the mechanical characteristics measurements of earth subgrade built from the recycled, slag and natural aggregate. The correlation dependence of design elastic modulus on CBR values obtained from in laboratory CBR measuring, representing the world's most widely used control method of bearing capacity of subgrade and construction layers are presented.

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