Sintered Calcined Clay as an Alternative Coarse Aggregate for Asphalt Pavement ConstructionReport as inadecuate




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The aim of this study is to search for a substitute for the natural coarse aggregate in various regions of the world, such as Amazon-Brazil, where this type of material is lacking. The asphalt binder AC 50-70 is mixed with an aggregate obtained from the sinterization of a calcined clay SACC as a possible alternative to coarse aggregate material for the construction of asphalt pavements in tropical zones. The dynamic modulus |E*| of this mixture was measured under strain control mode and in tension control mode. The results are compared with those obtained from AC 50-70 mixed with pebbles, which is currently used as the coarse aggregate in this region. For pavements that work at high temperatures, such as 40℃, and low frequencies, the mixture with SACC appears to be a viable alternative to coarse aggregate material for the construction of asphalt pavements in tropical zones.

KEYWORDS

Dynamic Modulus, Viscoelasticity, Sintered Calcined Clay Aggregate, Asphalt

Cite this paper

da Silva, C. , da Frota, H. and da Frota, C. 2015 Sintered Calcined Clay as an Alternative Coarse Aggregate for Asphalt Pavement Construction. Open Journal of Civil Engineering, 5, 281-288. doi: 10.4236-ojce.2015.53028.





Author: Cleudinei Lopes da Silva1, Hidembergue Ordozgoith da Frota2, Consuelo Alves da Frota1

Source: http://www.scirp.org/



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