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Studi Karakteristik Campuran Tambalan Cepat Mantap (TCM) Thanaya, ME., PhD, I Nyoman Arya; Jayantara, I Wayan Putra; Purbanto, I Gusti Raka
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 26, Nomor 1, JULI 2020
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (166.212 KB) | DOI: 10.14710/mkts.v26i1.28446

Abstract

Patching road pothole can be done using Permanent Cold Patching (PCP). This research main aim was to analyze the characteristic of the PCP. PCP Super Cold Mix Asphalt was used for the experiment. The mixtures were compacted Marshall hummer in lab using, and plate compactor on site. It was obtained that: compaction temperature variation significantly affected the characteristic of the mixture. Compaction at 100°C and 150°C, met stability, porosity and VMA specification, but not for the VFB. It required more compaction energy. The stability of cold compacted mixture at the age of 1 hour gave 844.74 kg (min. 500 kg). Towards this value, at the age of 48 hours; 96 hours; 192 hours; 384 hours, respectively gave increase of stability of 102%; 140%; 183%; 187% and then constant. Cold compaction on site gave less performance with porosity values in a range of 4.585-8.22% (spec. 4% -10%), therefore the VFB is less than minimum 65% of VMA; the stability obtained was 1422.72 kg (>min 500kg) or 58% stability of the samples compacted in lab at the same 16 days of age where stability had become maximum (constant). Cantabro test result of the cold mix gave 100% weight loss (the sample disintegrated), meanwhile the hot mix only lost 7.56% from 16% max loss.
Financial Feasibility Analysis of Asphalt Mixing Plant Investment: A Case Study in Gianyar Regency, Bali Jayantara, I Wayan Putra
Jurnal Ilmiah Telsinas Vol 8 No 2 (2025)
Publisher : Universitas Pendidikan Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38043/telsinas.v8i2.6969

Abstract

The availability of adequate road infrastructure is crucial for supporting mobility and regional economic growth. In Indonesia, increasing demand for high-performance roads has driven a transition from penetration macadam to hot mix asphalt (HMA). To meet this demand efficiently, reliable production facilities such as Asphalt Mixing Plants (AMP) are essential. This study aims to evaluate the financial feasibility of an AMP investment located in Pering Village, Blahbatuh District, Gianyar Regency, Bali. The analysis uses five financial indicators: Net Present Value (NPV), Internal Rate of Return (IRR), Benefit Cost Ratio (BCR), Break Even Point (BEP), and Annual Equivalent (AE). Financial data were collected from the company’s records of hotmix production and sales during the 2014–2020 period. The results indicate that the AMP project is financially viable. The NPV is Rp. 33.421.961.979, the IRR is 18% higher than the Minimum Attractive Rate of Return (MARR) of 16%—while the BEP was achieved in the 7th month of 2015. The AE value reached Rp. 4.774.565.997 per year, and the BCR was calculated at 1,244. These findings confirm that the investment is profitable and worth pursuing. This study provides practical insights for investors and stakeholders in making data-driven decisions for infrastructure investments, particularly in the road construction sector. Furthermore, the findings are relevant for long-term AMP business development, considering the growing demand for HMA in Indonesia. The shift from penetration macadam to HMA underscores the importance of efficient asphalt production facilities to ensure consistent supply and support sustainable infrastructure development.