@thesis{thesis,
		author={Sofyan  Muhammad and TAMPUBOLON  MASTER JF},
		title ={PENGARUH PENGGUNAAN BIJI PLASTIK POLYPROPYLENE SEBAGAI PENGGANTI AGREGAT HALUS DALAM PEMBUATAN BETON},
		year={2021},
		url={http://156.67.221.169/4799/},
		abstract={The older use of plastic is increasing, causing a buildup of plastik waste. On the
laim side, concreate construction was very populer among the people in the study
using plastic Polypropylene to replace smooth aggregate. The study aims to know
thw weight of the volume of concrete, the strong pressure of concrete, and the
slump test results from the study indicate that wear polypropylene plastic ass a
replacement for fine aggregate. Lots of plastic 10%, 20%, 30%, and 40%. The
result from the slump test found were 9,0 cm, 9,2 cm, 9,4 cm, 9,7 cm. Weight of
concrete, extre pounds 3,47 kg, 3,36 Kg, 3,31 Kg, and 3,17 Kg. The result for
Concrete Compressive Strength on 28 days got as big 13,588 Mpa, 12,314 Mpa,
10,616 Mpa, dan 8,917 Mpa.. on the basis of its Tensile Strength Concrete the
28 days of 1,221 Mpa, 1,061 Mpa, 0,955 Mpa, 0,637Mpa.}
		}