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<title><![CDATA[PENGARUH SUBSTITUSI PARSIAL SERBUK CANGKANG KERANG TERHADAP KUAT TEKAN MORTAR GEOPOLIMER]]></title>
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<namePart>0415128905 - Erma Desmaliana, S.T.,M.T</namePart>
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<note>Penelitian ini bertujuan untuk menganalisis pengaruh substitusi parsial serbuk cangkang kerang terhadap kuat tekan mortar geopolimer. Beton geopolimer dipilih sebagai alternatif ramah lingkungan dari beton konvensional karena memanfaatkan bahan limbah industri seperti fly ash, sekaligus mengurangi emisi karbon. Serbuk cangkang kerang digunakan sebagai bahan substitusi karena kandungan kalsium karbonatnya yang tinggi, yang diharapkan dapat meningkatkan performa mekanik beton geopolimer.
Metode penelitian dilakukan dengan variasi persentase substitusi fly ash dan serbuk cangkang kerang sebagai precursor, serta pasir galunggung dan serbuk cangkang kerang sebagai agregat halus. Pengujian meliputi kuat tekan pada umur 7, 14, dan 28 hari.
Hasil penelitian menunjukkan bahwa substitusi serbuk cangkang kerang mempengaruhi kuat tekan mortar geopolimer secara signifikan. Nilai kuat tekan maksimum dicapai pada umur 28 hari dengan substitusi serbuk cangkang kerang sebesar 20% terhadap fly ash, menghasilkan kuat tekan sebesar 29,645 MPa pada substitusi sebagi precursor. Pada substitusi agregat halus pada variasi 6 didapatkan kuat tekan optimum sebesar 18,193 MPa.</note>
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<subject authority=""><topic><![CDATA[Fly ash]]></topic></subject>
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