Jurnal Ilmiah Teknik Sipil
Vol. 15, No. 1 Januari 2011

VARIASI AGREGAT PIPIH SEBAGAI AGREGAT KASAR TERHADAP KARAKTERISTIK LAPISAN ASPAL BETON (LASTON)

I Made Agus Ariawan (Unknown)



Article Info

Publish Date
26 Nov 2012

Abstract

Laston is a mixture of continuously graded aggregates and asphalt as abinder. Based on its form, the used aggregate is classified as spherical, cube, oval,flaky and irregular. A flaky aggregate is unfavorable to be used as Lastoningredient, because it is broken easily that could affect gradation of aggregate andthe interlocking is weak. Therefore, the Determination of Flekiness indexs BS.812limits aggregate index flaky in the Laston for a maximum of 25%. Research iscarried out to study how the effect of flaky aggregate as coarse aggregate on thecharacteristic of Laston mixture where the Flaky Aggregate used are varied namely0%, 15%, 20%, 25%, 30%, 35% of the total aggregate. By using 6.25% of KAO,the characteristics of the Laston are as follows. Decreases in the value of stabilityfrom 1144 kg to 1096.9 kg, the value of MQ from 313.21 kg/mm to 150.52 kg/mm,the value of VMA from 16.48% to 13.68%, and the value of VIM from 5.90% to2.73%, increases in the flow from 3.65 mm to 7.21 mm, and the value of VFB from64.2% to 80.1% are obtained. Based on regression and correlation analyses, theaddition of flaky aggregate strongly affects the value of the Laston characteristic.The correlation values (r) of each characteristic are greater than 0.97. Based on theanalysis of variance, the value of F count for each Laston characteristic is greaterthan F table of 3.11 with an error rate ( ) of 5%, the degree of freedom treatment v1 = 5 and degrees of freedom random v2 = 12. This proves that by varying thelevel of flaky aggregate makes the difference in the values of the Laston mixturecharacteristics.

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Journal Info

Abbrev

jits

Publisher

Subject

Civil Engineering, Building, Construction & Architecture

Description

Jurnal Ilmiah Teknik Sipil (p-ISSN: 1411-1292; e-ISSN: 2541-5484) is an online periodical journal of science that is published twice a year, in January and July by Civil Engineering Department, Faculty of Engineering, Udayana University. Jurnal Ilmiah Teknik Sipil is a media to publish the results ...