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All Journal Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil BANGUN REKAPRIMA
Ukiman, Ukiman
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Humanities Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Education Engineering Transportation Other

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Karakteristik Campuran Tanah Dan Semen Yang Dipadatkan Pada Berbagai Campuran Sebagai Upaya Perbaikan Lapisan Tapak Pondasi Dangkal Dengan Uji Sondir Ukiman, Ukiman; Wibowo, Hadi; Suwarno, Anung; Ariyanto, Arief Subakti; Suhartono, Edy
Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Vol 22, No 2 (2017): Wahana Teknik Sipil
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/wahanats.v22i2.1167

Abstract

In the effort of public welfare, the government through the provision of boards such as residential houses, either through private parties or SOEs, often gets the location of the land base in the form of soft land or ugly carrying capacity, which impact on maintenance and repair costs far greater than the cost of purchase. Researchers studied through the stabilization of soil with cement materials and soil mixed variations that occur, so that the soil as a buffer building is known strength or carrying capacity. On improving the strength of the road body with soil stabilization through the CBR test, it can be obtained an increase in soil bearing capacity. Sondir testing for the foundation design data either through conical resistance (qc) or by friction can be obtained by the base area of the foundation foot. If the value of qc is large then the footprint of the foundation foundation, especially shallow foundations will be small. With soil and cement stabilization studies in the laboratory, with different variations and durations can be obtained a reference to the increase in the carrying capacity of the shallow foundation footing and the required thickness of the layer based on the pattern of voltage distribution with the mathematical equation y = 0.7935x - 6.79 where y = power support for soil (kg / cm2), and x =% plus cement and R = correlation.Kata kunci: Tanah, Semen, Daya Dukung, Sondir.
Pengaruh Penambahan Kapur Dan Semen Terhadap Nilai Cbr Tanah Lempung Merah Ukiman, Ukiman
Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Vol 18, No 1 (2013): WAHANA Teknik Sipil
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/wahanats.v18i1.125

Abstract

Granular of soil as a material supporter of building foundations, heavily influenced by the physical properties of water. Moreover, the fine-grained soil clays in particular, due to water entering the soil particle then inflate and vice versa due to reduced ground water will shrink. Red clay soil stabilization with lime and cement materials, seeks to increase the carrying capacity of the soil as subgrade layer to buffer the load through the foundation component that serves to spread the load on it to buffer the soil section. In addition to the added material lime and cement as filler material also serves as a lasting cementation thus increase the carrying capacity of the red clay soil. Better material cemented its CBR value increase of the lime.
Kajian Nilai Daya Dukung Tanah Lempung Merah Dengan Bahan Tambah Kapur Melalui Uji CBR Triwardaya, Triwardaya; Pawiro, Dadiyono Amat; Ukiman, Ukiman; Sutarno, Sutarno
Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Vol 20, No 2 (2015): WAHANA Teknik Sipil
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/wahanats.v20i2.147

Abstract

Soil materials that the grain size of the composition can comprise coarse material (gravel, sand) and fine materials (silt and clay). At the material / soil materials that include fine-grained soil that contains granules ΓΈ 0.075 mm over 50% will be dominated by clay content. This material will have a high value of plasticity and low power as well as developing a sizeable shrinkage. Lime that has binding properties (lime stone) when added to the material clay changes will provide both improved quality, bulk density, as well as lime-enabled so the added material on clay red around POLINES as filler material (filter) with different variations in the mix and treatment peneraman and soaking would boost its strength tested by the carrying capacity by means of CBR (California Bearing Ratio) test results in the laboratory value of CBR plans on condition brooded until 7 days: CBR its 2.4 kp + 20.8 with a level of correlation R = 0.9328 , And soaked conditions until 7 days: his CBR kp 4.4 - 0.8 with a degree of correlation R = 0.9874.
Peningkatan Pengetahuan Dan Keterampilan Pengukuran Bagi Pekerja Bangunan Nurhadi, Imam; Yusetyowati, Yusetyowati; Ukiman, Ukiman; Pawiro, Dadiyono Amat
Bangun Rekaprima Vol 4, No 1 (2018): April 2018
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (864.057 KB) | DOI: 10.32497/bangunrekaprima.v4i1.1119

Abstract

Dampak dari pertumbuhan penduduk adalah semakin meluasnya areal pemukiman dan semakin menyusutnya areal kebun, ladang dan persawahan. Akibat dari hal ini, sebagian besar masyarakat yang tadinya bermata pencaharian bercocok tanam berubah profesi menjadi buruh pabrik, buruh bangunan, pekerja bangunan, berjualan sembako atau yang lainnya. Hal ini sangat dirasakan oleh masyarakat Desa Pundensari, Kecamatan Purwodadi, Kabupaten Purworejo dan sekitarnya, dimana sebagian besar pada saat dahulu bekerja di sawah dan ladang sebagai petani berubah profesi sebagai pekerja bangunan yang sesuai dengan pendidikan dan keterampilannya. Pekerja bangunan mengalami kesulitan terutama dalan hal antara lain pengukuran jarak, ketinggian dan sudut horizontal maupun miring. membaca gambar kerja ditransfer ke lapangan tentang letak bangunan dan pengukuran batas lahan dan luas bidang tanah sawah atau pekarangan, batas jalan, saluran air dan sebagainya. Politeknik Negeri Semarang sangat berkepentingan untuk ikut ambil bagian dalam peningkatan kualitas tenaga kerja yang ada di wilayah Jawa Tengah. Hal ini sebagai salah satu dari Tri Darma Perguruan Tinggi, yaitu pengabdian kepada masyarakat. Permasalahan mitra yang dihadapi mengalami kendala terutama dalam pengukuran berkaitan tenaga kerja bangunan, mengingat pengukuran harus mengunakan alat ukur yang sederhana dan handal untuk menunjang hasil yang maksimal. Sehingga tim pengabdian kepada masyarakat dan mitra (bas-bas borong pekerja bangunan) memandang perlu ada kesepakatan kerja sama yang berkaitan pelatihan dalam bidang pengukuran. Solusi yang ditawarkan tim pengabdian dengan mitra adalah pelatihan pengunakan alat ukur untuk meningkatkan sumber daya dan pelatihan membuat garis lurus, sudut sembarang, menentukan titik ketinggian.Kata Kunci: Pengukuran, garis, sudut.
Co-Authors Anung Suwarno, Anung Ariyanto, Arief Subakti Hadi Wibowo Nurhadi, Imam Pawiro, Dadiyono Amat Suhartono, Edy Sutarno Sutarno Triwardaya Triwardaya, Triwardaya Yusetyowati Yusetyowati, Yusetyowati