?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENGARUH+ABU+KETEL+DAN+SILICA+FUME+SEBAGAI+BAHAN%0D%0APENGGANTI+SEBAGIAN+SEMEN+DALAM+CAMPURAN+BETON%0D%0A%0D%0ANORMAL+TERHADAP+KUAT+TEKAN&rft.creator=%09HABIB+%2C+ILHAM+ABDULLAH%09&rft.subject=620+Ilmu+teknik+dan+ilmu+yang+berkaitan&rft.description=Normal+concrete+is+a+mixture+of+coarse+aggregate%2C+fine+aggregate%2C+water%2C+and%0D%0Ahydraulic+cement+or+Portland+cement%2C+constituting+a+fundamental+component+in+the%0D%0Aconstruction+industry.+In+Lampung+Province%2C+the+large-scale+production+of+palm+oil%0D%0Agenerates+a+significant+amount+of+boiler+ash+waste.+In+an+effort+to+improve+concrete%0D%0Aquality+by+utilizing+industrial+waste%2C+boiler+ash+and+silica+fume+can+be+effective%0D%0Aalternatives+as+partial+replacements+for+cement.+Both+contain+high+levels+of+Silicon%0D%0ADioxide+(SiO2)%2C+aiding+in+the+concrete+hardening+process.+This+study+employs+an%0D%0Aexperimental+method+with+various+substitutions+of+cement+in+normal+concrete+cubes%2C%0D%0Aincluding+different+percentages+of+boiler+ash+and+silica+fume+usage.+Testing+is%0D%0Aconducted+on+cement+binding+time+and+concrete+compressive+strength+at+ages+28%0D%0Aand+56+days.+The+results+indicate+that+using+boiler+ash+and+silica+fume+as+cement%0D%0Areplacements+can+expedite+the+cement+binding+process+and+produce+concrete+with%0D%0Alower+slump+values.+The+optimum+percentage+of+boiler+ash+usage+for+concrete+cubes%0D%0Aat+ages+28+and+56+days+is+5%25%2C+yielding+compressive+strengths+of+29.47+MPa+and%0D%0A31.29+MPa%2C+respectively.+The+optimum+percentage+of+silica+fume+usage+for+concrete%0D%0Acubes+at+ages+28+and+56+days+is+10%25%2C+resulting+in+compressive+strengths+of+28.04%0D%0AMPa+and+33.40+MPa%2C+respectively.+In+combination%2C+the+optimum+proportion+is+85%25%0D%0Acement%2C+5%25+boiler+ash%2C+and+10%25+silica+fume%2C+producing+compressive+strengths+of%0D%0A28.93+MPa+at+age+28+days+and+30.67+MPa+at+age+56+days.+The+utilization+of+boiler%0D%0Aash+and+silica+fume+provides+a+positive+impact+on+increasing+concrete+compressive%0D%0Astrength+and+can+economically+utilize+industrial+waste.%0D%0AKeywords%3A+Normal+Concrete%2C+boiler+ash%2C+silica+fume%2C+cement+binding+time%2C+concrete%0D%0Acompressive+strength%0D%0ABeton+normal+adalah+campuran+agregat+kasar%2C+agregat+halus%2C+air%2C+dan+semen%0D%0Ahidraulik+atau+semen+portland%2C+merupakan+komponen+dasar+dalam+industri%0D%0Akonstruksi.+Di+Provinsi+Lampung%2C+produksi+kelapa+sawit+yang+besar+menciptakan%0D%0Alimbah+abu+ketel+yang+cukup+signifikan.+Dalam+upaya+meningkatkan+kualitas+beton%0D%0Adengan+memanfaatkan+limbah+industri%2C+abu+ketel+dan+silica+fume+bisa+menjadi%0D%0Aalternatif+yang+efektif+sebagai+pengganti+sebagian+semen.+Keduanya+mengandung%0D%0ASilikon+Dioksida+(SiO2)+yang+tinggi%2C+membantu+dalam+proses+pengerasan+beton.%0D%0APenelitian+ini+menggunakan+metode+eksperimental+dengan+berbagai+variasi%0D%0Asubstitusi+semen+dalam+beton+normal+berbentuk+kubus%2C+meliputi+persentase%0D%0Apenggunaan+abu+ketel+dan+silica+fume+yang+berbeda.+Pengujian+dilakukan+terhadap%0D%0Awaktu+pengikatan+semen+dan+kuat+tekan+beton+pada+umur+28+dan+56+hari.+Hasilnya%0D%0Amenunjukkan+bahwa+penggunaan+abu+ketel+dan+silica+fume+sebagai+pengganti%0D%0Asemen+mampu+mempercepat+proses+pengikatan+semen+dan+menghasilkan+beton%0D%0Adengan+nilai+slump+yang+lebih+rendah.+Kadar+optimum+penggunaan+abu+ketel+pada%0D%0Abeton+kubus+umur+28+dan+56+hari+adalah+5%25%2C+dengan+kuat+tekan+secara+berurutan%0D%0Amencapai+29%2C47+MPa+dan+31%2C29+MPa.+Kadar+optimum+penggunaan+silica+fume+pada%0D%0Abeton+kubus+umur+28+hari+dan+56+hari+adalah+10%25%2C+dengan+kuat+tekan+secara%0D%0Aberurutan+mencapai+28%2C04+MPa+dan+33%2C40+MPa.+Dalam+kombinasi%2C+proporsi%0D%0Aoptimum+adalah+85%25+semen%2C+5%25+abu+ketel%2C+dan+10%25+silica+fume%2C+menghasilkan+kuat%0D%0Atekan+beton+kubus+sebesar+28%2C93+MPa+pada+umur+28+hari+dan+30%2C67+MPa+pada+umur%0D%0A56+hari.+Pemanfaatan+abu+ketel+dan+silica+fume+sebagai+memberikan+dampak+positif%0D%0Aterhadap+peningkatan+kuat+tekan+beton%2C+serta+dapat+memanfaatkan+limbah+industri%0D%0Asecara+ekonomis.%0D%0A%0D%0AKata+kunci%3A+Beton+Normal%2C+abu+ketel%2C+silica+fume%2C+waktu+pengikatan+semen%2C+kuat%0D%0Atekan+beton&rft.publisher=TEKNIK&rft.date=2024-04-16&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F84442%2F1%2F2.%2520Abstrak%2520SKRIPSI%2520HABIB%2520ILHAM%2520ABDULLAH%25202015011009%2520-%2520Habib%2520Ilham%2520Abdullah.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F84442%2F2%2FSKRIPSI%2520Tanpa%2520Lampiran%2520Isi%2520HABIB%2520ILHAM%2520ABDULLAH%25202015011009%2520-%2520Habib%2520Ilham%2520Abdullah.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F84442%2F3%2FSKRIPSI%2520HABIB%2520ILHAM%2520ABDULLAH%25202015011009%2520TANPA%2520BAB%2520PEMBAHASAN%2520%2528Bentuk%2520PDF%2529%2520%2528Tanpa%2520Lampiran%2520Isi%2529%2520-%2520Habib%2520Ilham%2520Ab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