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Journal : APTEK

KINERJA ABU BATU BARA BERCAMPUR KAYU PADA STABILITAS DAN RONGGA PORI ASPAL HOT MIX HRS - WC Muhammad Shalahuddin
Jurnal APTEK Vol. 2 No. 1 (2010): APLIKASI TEKNOLOGI
Publisher : Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (517.442 KB) | DOI: 10.30606/aptk.v2i1.26

Abstract

The filler is difficult to get it in nature, hence to get it always use filler from fine aggregate and medium aggregate, cement and lime. Minus filler in HRS-WC caused bleeding. Filler characteristic have much space surface in unit and can absorbed asphalt bitumen and decrease void. Fly ash is the fine particulate matter (filler) which is prepitated from the stack of pulverized coal-wood fired boiler at electrical power generating plants PT. RAPP. The primary benefits of using fly ash are (1) environmental incentives becaused material used does not have to be wasted (2) cost saving, becaused fly ash is typically cheaper than cement and lime, and (3) availability, because fly ash sources are distributed geographically across the state.HRS-WC is a high durability HMA, it have more than asphalt bitumen and filler. Asphalt bitumen increase bitumen film thickness and filler increase void. Research activities are underway to investigate more effective and efficient ways of adding fly ash at the HMA production site. This research with 60 total sample specimen of HMA, variation of fly ash are 0 %, 6 % ; 10 % and 12 % and variation of bitumen are 5 %, 5,5 %, 6 %, 6,5 % and 7 %.
VARIAN CBR YANG MEWAKILI TERHADAP KEDALAMAN UJI DCP Muhammad Shalahuddin
Jurnal APTEK Vol. 4 No. 2 (2012): APLIKASI TEKNOLOGI
Publisher : Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1325.822 KB) | DOI: 10.30606/aptk.v4i2.57

Abstract

The relative strength of subgrade where tested by DCP to get the CBR field. DCP test conducted to adepth of 100 cm (long test equipment). Meaning that, the CBR representative is obtained from the relativestrength of the subgrade data to a depth 100 cm. CBR values can also be obtained by laboratory CBR test atsoil samples taken to a depth of 30 cm.Differences in depth review at the DCP test, reading are approaching a depth of 30 cm and 100 cm.CBR representative was calculated at the depth of 30 cm and 100 cm.CBR representative up to a depth of 30 cm was larger than the CBR representative up to a depth of 100cm. CBR representative up to a depth of 30 cm was 1,62 %, CBR representative up to a depth of 100 cm was1,2 %. Soil at a depth 30 cm to 100 cm, naturally have a lower density and CBR.
ANALISA KARAKTERISTIK BETON DENGAN VARIAN CANGKANG SAWIT-BATU PECAH Muhammad Shalahuddin; Alex Kurniawandy; Gussyafri -
Jurnal APTEK Vol. 5 No. 1 (2013): APLIKASI TEKNOLOGI
Publisher : Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (328.409 KB) | DOI: 10.30606/aptk.v5i1.73

Abstract

Concreteis amixture ofportlandcement,fine aggregate, coarse aggregateand waterwith orwithout additives. Palmshells are hard enough with a lot of surface rupture to beable toreplace thecoarse aggregateonconcreteproperties, especially fornonstructuralconcrete.Combinationof materialconblock concrete of 60 % palm shelland 40% sand using water-cement ratio 0.4 and 0.45 showedstrength 4.0MPa(Muhammad Shalahuddin, 2012).Mixingconcreteis done byDOEmethod,60 samplescylindricaldiameter of 15cm andheight of 30cm. Compressive strengthof concretetestedat 28 dayswith a variety of water-content ratio and a variety of coarse aggregate-palm shells.The greater the percentage of use of the palm shell, made of concrete compressive strength decreases. Concrete compressive strength decreases with increasing of water-content ratio. Variations palm shell 50% and 50% of crushed stone with water-content ratio 0.4 and 0,45 produces compressive strength above 12.5 MPa.
ANALISA OVERLAY DENGAN LENDUTAN BALIK MAKSIMUM PADA JALAN Dr. MUCHTAR LUTHFI Muhammad Shalahuddin
Jurnal APTEK Vol. 6 No. 2 (2014): APLIKASI TEKNOLOGI
Publisher : Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (330.98 KB) | DOI: 10.30606/aptk.v6i2.98

Abstract

Measurement of deflection caused by traffic loads can be connected to the pavement thicknessrequirements. Needs pavement thickness (overlay) with reverse deflection analysis tested the tool benklemanbeam. Benkleman beam test is one way to do the assessment reverse deflection pavement structure behindwhich does not damage the structure (non destructive field tests). Forth maximum vertical deflection thatoccurs on the surface of the road due to the load carried on sta eliminated. 0+000 up to 6+000 influenced bythe weather, the age of the plan, the development of traffic danAE18KSAL.