@thesis{thesis,
		author={nababan  Maria oktaviana and Putri  Desi},
		title ={PENGARUH PENGGUNAAN LIMBAH TULANG SAPI DAN LIMBAH KERAMIK PADA CAMPURAN BETON DI TINJAU TERHADAP KUAT TEKAN DAN PENYERAPAN AIR (ABSORPSI)},
		year={2019},
		url={http://156.67.221.169/2257/},
		abstract={Most of construction use materials in the construction modern structures. It was obtained by mixing cement, water, and aggregate or mixed with a chemical adder. Concrete production using cow bone waste and ceramic waste has not been widely used in Indonesia. Such research will be made on the purpose of using ceramic waste asa crude subtitling and asa cement subtitling. The samples used are cylindrical measuring 15 cm by 30 cm. The concrete planned by fc '25 MPa with the proportions of the ceramic waste of 30% to the rough substation and the bone wastes of beef 0%, 2.5%,5%, 7.5% and 10% for the cement substitutes, then a strong test of press is made at 7 days, 14 days, and 28 days. It determine that the most optimum hard pressure value is found at variations 3 with a compound of 30% ceramic and 7.5% of cow bone strength a press of 26,516 and 3.210% by absorption}
		}