No abstract

Rigid pavement of apron in the airport is a complex structure which is designed based on the sense of balance of sub-grade strength, pavement aggregates, applied load characteristics, and climate. Various sub-grade condition and concrete slab flexural strength values results on the pavement design thickness that have a direct impact on the cost construction. In this study, the rigid pavement design of an apron with various sub-grade condition and concrete flexural strength values are presented. As a reference, the Federal Aviation and Administration (FAA) method is used. Dynamic Cone Penetration (DCP) test value is used to estimate California Bearing Ratio (CBR) values to determine the sub-grade reaction modulus (k). The flexural strength of concrete slab analyzed by several empirical models with constant values range of 0.72-0.9. The pavement structure analysis conducted by FAARFIELD. The CBR values from DCP's test vary between 6-10% which equal to k values between 31.4-46.8 MN/m 3 . Concrete slab flexural strength of 4.6 MPa results on the concrete slab thickness of 550-510 mm. Based on k value of 46.8 MN/m 3 and K400 concrete strength, the calculated flexural strength varies between 4.15-5.17 MPa and the concrete slab thickness is 570-540 cm. The inference variation of flexural strength based on the same value of concrete compression strength characteristics will produce different concrete slab thickness. The concrete slab thickness tends to increase with the smaller values of inference of flexural strength.

Assessment of road conditions using the SDI method and inventoried in the GIS in Klungkung Regency is carried out on the Jl. Gn Agung, Jl. Gn Rinjani, Jl. Gn Batukaru, Jl. Gn Semeru, and Jl. Gn Batur. Selection of district roads used by roads in the city of Semarapura which is the center of travel in Klungkung district should get more attention through road handling. In addition, the sections used are roads that visually have road damage. This research was conducted because there are still damaged roads that must be treated quickly. This study aims to analyze road conditions, analyze road handling types and inventory road conditions in a GIS map.  The data used in this research are primary data and secondary data. Primary data was obtained through a survey of road conditions by measuring road damage, while secondary data was obtained from the Bina Marga section of the PUPRPKP Office of Klungkung Regency, namely, SK Klungkung regency roads, Klungkung regency road maps and Klungkung district road baseline data. The stages of research analysis were identification of road damage by measuring, data recapitulation by processing survey results, data analysis using the SDI method and inventorying in a GIS map.  The results of the assessment for the Jl. Gn Agung is in moderate condition 0.416 km and slightly damaged condition is 0.300 km. Jl. Gn Rinjani, 0.277 km is slightly damaged. Jl. Gn Batukaru is slightly damaged by 0.119 km. Jl. Gn Semeru is slightly damaged by 0.288 km.  Jl. Gn Batur  condition is slightly damaged 0.546 km. For the type of handling carried out Jl. Gn Agung periodic maintenance and routine maintenance, Jl. Gn Rinjani, Jl. Gn Batukaru, Jl. Gn Semeru and Jl. Gn Batur is regular maintenance. Inventory of road condition data and basic road data of Klungkung district using GIS provides an overview of road conditions in the form of a road network map so as to provide convenience in monitoring road conditions and determining the type of handling. This research can be used as a reference in determining the type of handling of district roads in Klungkung district.

Campuran beraspal hangat (Warm Mix Asphalt/WMA) mulai dikembangkan karena lebih ramah lingkungan dibandingkan dengan campuran beraspal panas (Hot Mix Asphalt/HMA). Zeolit dapat dimanfaatkan sebagai bahan tambah pada WMA, karena sifatnya yang dapat menyimpan air sehingga pencampuran dan pemadatan pada WMA dapat dilakukan pada suhu yang lebih rendah dibanding HMA. Pusat Penelitian Pengembangan Jalan dan Jembatan (Pusjatan) turut mengembangkan teknologi WMA dengan memproduksi WMA Zeolit yang diberi nama ECOPAL. Penelitian ini bertujuan untuk mengetahui karakteristik dan pengaruh penambahan ECOPAL pada campuran Asphalt Concrete Wearing Course (AC-WC) dengan variasi ECOPAL 0,5%; 1%; 1,5%; 2%; 2,5% pada kadar aspal optimum (KAO). Pencampuran dilakukan pada suhu ±130oC, pemadatan suhu ±115oC, dan hasil penelitian menunjukkan setiap penambahan ECOPAL sebesar 0,5% meningkatkan nilai rata-rata stabilitas sebesar 14,85%; VFB 1,44%; dan kepadatan 0,22%. Sebaliknya, nilai VIM dan VMA cenderung mengalami penurunan, yaitu berturut-turut sebesar 4,34% dan 1,18%, sedangkan nilai flow tidak menunjukkan pola yang teratur terhadap kadar penambahan ECOPAL. Secara keseluruhan, terdapat beberapa campuran yang tidak memenuhi spesifikasi Bina Marga 2018. Nilai stabilitas dan Marshall Quotient pada kadar ECOPAL 0,5%-1,5% tidak memenuhi spesifikasi. Di samping itu, nilai VIM pada kadar ECOPAL 0,5% juga tidak memenuhi spesifikasi. Campuran dengan kadar ECOPAL 2,5% menghasilkan karakteristik terbaik, yaitu dengan nilai stabilitas 1101,91 kg; flow 3,13 mm; MQ 351,5 kg/mm; VIM 4,304%; VMA 15,374%; VFB 72,012%; serta kepadatan 2,226 gr/cm3. Nilai-nilai ini mendekati karakteristik AC-WC pada campuran panas. Kata Kunci: AC-WC, warm mix asphalt (WMA), zeolit, ECOPAL