@thesis{thesis,
		author={KUMARA  GUSTYA GILAR and Rokhman  Abdul},
		title ={PENGARUH PENGGUNAAN LIMBAH ABU SERBUK KAYU SEBAGAI SUBTITUSI SEMEN DAN LIMBAH BOTTOM ASH SEBAGAI BAHAN SUBTITUSI AGREGAT HALUS PADA PAVING
BLOCK},
		year={2021},
		url={http://156.67.221.169/4778/},
		abstract={The number of roads of poor quality, such as uneven ground, potholes, roads that
are often wet, etc., hampers community activities. Concrete bricks or commonly
called paving blocks are an alternative to hardening or covering the ground
surface in the form of stone. brick (in general). In this study, paving blocks were
made with sawdust ash as a cement substitute and bottom ash as a fine aggregate
substitute. The ratio of materials for making paving blocks is 1 (cement): 4
(sand). The purpose of this research is to determine the value of compressive
strength and water absorption and the optimum composition with sawdust and
bottom ash as cement and sand substitutes. Fixed variations of 20% bottom ash
and sawdust ash with variations of 0%, 10%, 20%, and 30% for the manufacture
of paving blocks. The compressive strength test was carried out at the age of 7
days, 14 days, 28 days and the water absorption test was carried out at the age of
28 days with a total of 60 paving block specimens made. The results of the
paving block research obtained the greatest compressive strength value at V3
(20% bottom ash and 20% sawdust ash) with a compressive strength value of
21.80 Mpa and a percentage absorption value of 6.390%. Based on SNI 03-0691-
1996 Paving Blocks produced in this study include B quality which can be used
for parking lots.}
		}