Analisis Injeksi Epoxy Pada Perbaikan Retak Beton Terhadap Beban Lentur

One of the causes of cracking in concrete beams is excessive gravitational load,mainly due to live loads that exceed capacity. The cracked beam can be repaired by the epoxy injection method but the condition of the repair is the strength value must reach the condition before cracking. The purpose of this study was to determine the effectiveness of injection in filling cracks and assessing epoxy ability in restoring beam strength. The specimen is a f'c 25 reinforced concrete block with dimensions of 15x15x60 cm. Tests are carried out with 2 methods, that are loading test according to SNI 03-4154-1996 and UPV. Load test and UPV were carried out at the age of 28 days and 3, 6. 9 days after epoxy injection. Based on the load test, epoxy injection is able to restore beam flexural strength up to 50% which is indicated by achieving load values after being injected. From the UPV test, it is known that epoxy injection is able to fill cracks which are characterized by increasing ultrasonic wave propagation speed on the test object after injection compared to when cracked but the injection cannot completely fill the cracked area which is indicated by a smaller wave propagation value than when the object the test has not experienced a crack. Based on a series of research activities, it is very necessary to pay attention to the injection process such as viscosity and injection pressure in order to obtain good results.Kata kunci : crack, injection, epox

PONDASI PADA TANAH BATUAN LIMESTONE BERDASARKAN HASIL UJI SPT (STUDI KASUS DI AMARI PECATU)

Amari Pecatu merupakan suatu resort wisata yang berada di Pecatu Graha, Badung-Bali. Resort ini berdiri di atas tanah limestone yang keras. Namun, dikhawatirkan terdapat rongga-rongga yang terdapat di dalam lapisan tanah. Oleh karena itu dibutuhkan pengujian tanah untuk menentukan desain pondasi yaitu mengenai jenis pondasi, dimensi pondasi, serta kedalaman pondasi. Uji SPT dilakukan dengan pengeboran sebanyak 3 titik sedalam 15 meter dengan selang interval 2 meter. Berdasarkan hasil pengujian tanah pada titik BH.11 dan BH.12 diusulkan pondasi telapak dari beton bertulang sedalam 2 meter, lebar pondasi 0,8 meter dan tegangan ijin tanah 12,20 kg/cm2. Pada titik bor BH.13 terdapat elevasi batuan limestone dengan potensi berongga sehingga digunakan pondasi bor pile beton bertulang berdiameter 50 cm dengan kedalaman 9 meter serta daya dukung ijin tekan tiang tunggal 46 to

Quick and concise land boundary mapping using a drone at Villa Buccu, Kerobokan, Badung, Bali

The effective measurement and mapping of the land is retrieval of accurate data according to position, in accordance with mapping provisions and efficient in both cost and time. One way that data can be retrieved effectively and efficiently is by using a drone, commonly called an unmanned aerial vehicle (UAV).Drone is a vehicle equipped with a wave control system, precision navigation (Global Positioning System/GPS) and flight control electronics so that it is able to fly according to flight planning (autopilot). This drone makes it possible to track the position and orientation of sensors implemented in local or global coordinate systems.  With the drone itself, it saves time because it can have an image of an area. Premark / Ground Control Point (GCP) is a point that is commonly used to improve measurement accuracy in mapping using drones, in this case using the Global Positioning System (GPS) Geodetic / RTK Hi Target tool. Mapping Using Drones was then used by many people, including for the purposes of villa spatial planning, so to support this activity a land boundary mapping was carried out at Villa Buccu, Kerobokan, Badung Bali.&nbsp

Three-dimensional (3D) land contour modeling using QGIS software on topography mapping in Buwit Village, Kediri District, Tabanan Regency, Bali

A topographical map is a map that contains information about the elevation of the land surface in a place to the mean sea level (Mean Sea Level), which is depicted by contour lines. Information from the coordinates and elevation of detailed land points as a result of land surveying can be used to create a three-dimensional model of the land surface on the map using the Quantum Geographic Information System (QGIS) software application. With a three-dimensional (3D) model, the objects on the map are seen more alive as they actually are in the field, so that analyzing a topographic map can be done more easily. To support these activities, three-dimensional (3D) land contour modeling was carried out with QGIS software on topographical mapping in Buwit Village, Kediri District, Tabanan Regency, Bali

PENGARUH METODE MIND MAPPING TERHADAP KEMAMPUAN PRESENTASI LISAN MAHASISWA KELAS VII A D4 MANAJEMEN PROYEK KONSTRUKSI JURUSAN TEKNIK SIPIL POLITEKNIK NEGERI BALI

Dalam mempelajari bahasa Inggris, mahasiwa membutuhkan sebuah metode yang efektif yang bisa membantu mereka mencapai tujuan pembelajaran. Pengajar memberikan sebuah metode yang efektif yang bisa mempermudah mereka dalam belajar. Penulis tertarik dengan sebuah metode yaitu metode mind mapping, yaitu sebuah metode pemetaan pikiran yang bisa diterapkan pada mahasiswa.Tujuan penelitian ini adalah untuk mengetahui apakah pemberian metode mind mapping ini berpengaruh terhadap nilai presentasi mahasiswa. Adapun yang dijadikan objek penelitian adalah mahasiswa semester VII kelas A D4 Manajemen Proyek Konstruksi. Metode penelitian yang digunakan adalah metode kualitatif dengan menggunakan statistik. Dari olah data yang dilakukan dapat disimpulkan bahwa pemberian mind mapping dalam pembelajaran membawa pengaruh yang signifikan terhadap kemampuan presentasi bahasa Inggris mahasiswa. Ini ditunjukkan dengan peningkatan kemampuan presentasi bahasa Inggris sesudah pemberian mind mapping yakni masing-masing sebesar 79,65 dengan standar deviasi 5,86 dan sebesar 77.00 dengan standar deviasi sebesar 4,7