The Effect of Acid Type in Mechanochemical Treatment of Rice Husk Ash for Concrete Application

J. F. Fatriansyah, S. A. Khairunnisa, D. Dhaneswara, M. Z. Rahmatullah, B. A. Ramadhan

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Concrete was successfully produced using rice husk ash (RHA) as a partial cement substitute. RHA was mechanochemically treated using ball mill as mechanical force and acids (HCl and CH3COOH) as chemical force. Mechanochemical treatment decreases particle size as demonstrated by particle size analyser test and reduces crystallinity of RHA as demonstrated by X-ray diffraction analyses. These characteristics make RHA more suitable as partial substitution of cement as well as pozzolanic material. The compressive strength of concrete increases 11-26 % by addition of RHA as cement substitution. The significant increase of compressive strength was obtained from RHA mechanochemically treated with HCl which has compressive strength of 14.8 MPa in comparison of standard concrete which has compressive strength of 11.72 MPa.

Original languageEnglish
Article number012066
JournalIOP Conference Series: Materials Science and Engineering
Issue number1
Publication statusPublished - 30 Jun 2020
Event2nd International Conference on Chemistry and Material Science, IC2MS 2019 - Malang, East Java, Indonesia
Duration: 2 Nov 20193 Nov 2019


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