PENGARUH BOTTOM ASH SEBAGAI PENGGANTI PASIR DAN LIMBAH KARBIT SEBAGAI BAHAN TAMBAH SEMEN TERHADAP BERAT JENIS, KUAT TEKAN, DAN ABSORBSI BATAKO
PENGARUH BOTTOM ASH SEBAGAI PENGGANTI PASIR DAN
LIMBAH KARBIT SEBAGAI BAHAN TAMBAH SEMEN
TERHADAP BERAT JENIS, KUAT TEKAN, DAN ABSORBSI
Nur Ali1, Rofikatul Karimah2 , H. E.Meiyanto3
1,2,3 Jurusan Teknik Sipil Fakultas Teknik – Universitas Muhammadiyah Malang
Alamat korespondensi : Jalan Raya Tlogomas 246 Malang 65144
Basically concrete brick is formed from cement, sand and water, than a breakthrough
made in manufacturing of concrete brick with the utilization of wastes which have no economic
value are also widely available in the environment than is waste of bottom ash an carbide. In this
research, a normal concrete brick consist of cement, san, and water which given variation of
carbide waste ranging from 10%, 20%, and 30%, afterwards a replacement of sand by bottom
ash is made with a given variation of carbide waste 10%, 20%, and 30%. Result of the research
that applying sand as subtle aggregate and waste of carbide as additional material for cement
gets the best result on the variation of carbide waste 30% with strength of compression 69,10
MPa and 3,58% absorption capacity, it is better rather than normal concrete brick on the variation
of carbide waste 0% with compressive strength of 48,74 MPa and 5,49 absorption capacity.
After wards, by doing replacement of sand with bottom ash as subtle aggregate and added
waste carbideas its variations is obtained the best results in the variation of carbide waste 30%
with compressive strength 52,37 MPa and 6,92 of absorption capacity better rather than 0% of
variation carbide waste with strength of compession 19,64 MPa and 12,01 of absorption capacity.
Keyword: Concrete Brick, bottom ash, waste carbide.
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