Evaluation of rice husk ash as filler in hot mix asphalt concrete


Sargin S., SALTAN M. , Morova N. , Serin S., TERZİ S.

CONSTRUCTION AND BUILDING MATERIALS, cilt.48, ss.390-397, 2013 (SCI İndekslerine Giren Dergi) identifier identifier

Özet

In the study, it was investigated to use the rice husk ash (RHA) in the hot mix asphalt as mineral filler. For this purpose, four different serial asphalt concrete samples were produced using limestone (LS) in different proportions (4%, 5%, 6%, and 7%) as mineral filler. The amount of optimum bitumen and the value of Marshall Stability (MS) were determined with MS test for the samples. Choosing the series of asphalt having 5% filler which has given the highest stability RHA was changed with LS filler in the rate of 25%, 50%, 75%, and 100%. After that MS test was conducted on the produced samples and the results were evaluated. As a result, it has come in view that RHA can be used as mineral filler in the asphalt concrete. (C) 2013 Elsevier Ltd. All rights reserved.