?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=STUDI+PENGARUH+ABU+SORGUM+TERHADAP+KUAT+TEKAN%2C+%0D%0AKUAT+TARIK+BELAH+DAN+KUAT+LENTUR+BETON%0D%0A&rft.creator=Denny+Pratama%2C+0745011022&rft.subject=Karya+Karya+Umum+%3D+000&rft.description=Abstrak+bahasa+indonesia%0D%0A%0D%0AMemanfaatkan+limbah+industri+dan+pemakaian+bahan+yang+ramah+lingkungan+sebagai+pengganti+bahan+pembentuk+beton%2C+namun+tetap+memiliki+kuat+tekan+yang+cukup+baik%2C+merupakan+langkah+bijak+dalam+persoalan+ini.+Penelitian+ini+dilakukan+untuk+mendapatkan+alternatif+baru+dalam+teknologi+beton+yaitu+dengan+menggantikan+sebagian+semen+dengan+abu+ampas+sorgum%2C+sehingga+pemakaian+abu+ampas+sorgum+diharapkan+dapat+menghasilkan+kuat+tekan+beton+kurang+lebih+sama+dengan+beton+normal+namun+ramah+lingkungan.+Tujuan+penelitian+ini+adalah+untuk+mengetahui+pengaruh+penambahan+abu+sorgum+terhadap+kuat+tekan%2C+kuat+tarik+belah%2C+dan+kuat+lentur+beton+sebagai+pengganti+sebagian+berat+semen+dengan+persentase+0%25%2C+5%25%2C+10%25%2C+15%25%2C+dan+20%25+dalam+waktu+pengikatan+28+dan+56+hari.+%0D%0A%0D%0AMetode+mix-design+dilakukan+dengan+Metode+ACI.+Benda+uji+adalah+berbentuk+silinder+dengan+ukuran++diameter+100+mm+dan+tinggi+200+mm+untuk+uji+kuat+tekan%2C+kuat+tarik+belah%2C+dan+balok+(100+mm+x+100+mm+x+400+mm)+untuk+uji+kuat+lentur.+Pada+Metode+ACI+dilakukan+pengujian+kuat+tekan%2C+kuat+tarik+belah%2C+dan+kuat+lentur+berdasarkan+beberapa+penambahan+abu+sorgum+pada+umur+28+dan+56+hari.%0D%0A%0D%0ADari+hasil+pengujian+di+laboratorium+dapat+disimpulkan%3A+(1)+Nilai+kuat+tekan%2C+kuat+tarik+belah+dan+kuat+lentur+beton++pada+variasi+persentase+abu+sorgum+mencapai+nilai+tertinggi+pada+persentase+20%25+pada+umur+56+hari+dengan+kuat+tekan+20%2C7644+Mpa%2C+kuat+tarik+belah+1%2C8047+Mpa%2C+dan+kuat+lentur+4%2C6638+MPa.+(2)+Penggunaan+penggantian+sebagian+semen+dengan+abu+sorgum+pada+adukan+beton+mampu+meningkatkan+nilai+slump+beton+tersebut%2C+sehingga+dengan+bertambahnya+presentase+abu+sorgum+yang+digunakan+maka+berpengaruh+meningkatkan+tinggi+nilai+slump+sehingga+dapat+meningkatkan+workability+beton+tersebut.%0D%0A%0D%0Aabstrak+bahasa+inggris%0D%0A%0D%0AUtilizing+industrial+waste+and+use+environmentally+friendly+materials+as+a+substitute+for+concrete+forming+material%2C+but+still+have+a+fairly+good+compressive+strength%2C+is+a+wise+step+in+this+issue.+This+study+was+conducted+to+obtain+a+new+alternative+in+concrete+technology+is+to+replace+a+portion+of+cement+with+ash+residue+of+sorghum%2C+sorghum+making+use+of+ash+residue+is+expected+to+produce+concrete+compressive+strength+is+approximately+equal+to+the+normal+concrete+but+eco-friendly.+The+purpose+of+this+study+was+to+determine+the+effect+of+ash+on+the+compressive+strength+of+sorghum%2C+split+tensile+strength+and+flexural+strength+of+concrete+as+a+partial+replacement+of+cement+by+weight+percentages+of+0%25%2C+5%25%2C+10%25%2C+15%25%2C+and+20%25+in+the+binding+of+28+and+56+days.%0D%0A%0D%0AMix-design+method+performed+by+ACI+method.+Test+object+is+cylindrical+with+a+diameter+of+100+mm+and+height+of+200+mm+to+test+compressive+strength%2C+split+tensile+strength%2C+and+beam+(100+mm+x+100+mm+x+400+mm)+for+flexural+strength+test.+ACI+method+is+tested+on+compressive+strength%2C+split+tensile+strength+and+flexural+strength+by+the+addition+of+several+sorghum+ash+at+28+and+56+days.%0D%0A%0D%0AFrom+the+results+of+laboratory+tests+it+can+be+concluded%3A+(1)+Compressive+strength%2C+split+tensile+strength+and+flexural+strength+of+concrete+on+the+variation+of+the+percentage+of+ash+sorghum+reached+the+highest+value+at+a+percentage+of+20%25+at+the+age+of+56+days+with+20.7644+MPa+compressive+strength%2C+split+tensile+strength+of+1.8047+MPa+and+4.6638+MPa+flexural+strength.+(2)+The+use+of+partial+replacement+of+cement+with+ash+in+the+concrete+mix+sorghum+able+to+increase+the+slump+of+concrete%2C+so+that+the+percentage+increase+in+sorghum+are+used+ashes+then+increased+the+slump+of+high+value+so+as+to+improve+the+workability+of+concrete.%0D%0A&rft.publisher=FAKULTAS+TEKNIK&rft.date=2014-10-24&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F4763%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F4763%2F2%2FABSTRACT.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F4763%2F3%2Fcover%2520dalam.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F4763%2F4%2Fpersetujuan.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F4763%2F5%2Fpengesahan.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F4763%2F6%2Fsurat%2520pernyataan.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F4763%2F7%2FRIWAYAT%2520HIDUP%2520PENULIS.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F4763%2F8%2FPersembahan.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F4763%2F9%2Fmotto.pdf&rft.format=text&rft.identifi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