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Ditemukan 6285 dokumen yang sesuai dengan query
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Weidman, George
Oxford: Butterworth-Heinemann, 1994
620.11 STR
Buku Teks SO  Universitas Indonesia Library
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Davis, Harmer E.
New York: McGraw-Hill , 1964
620.112 DAV t
Buku Teks SO  Universitas Indonesia Library
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Grajuantomo
"Meningkatnya luas daerah yang ditutupi oleh perkerasan dengan pembangunan permukiman seperti halnya di perkotaan dapat mengakibatkan waktu berkumpulnya air menjadi jauh lebih pendek, sehingga akumulasi air hujan yang terkumpul melampaui kapasitas drainase yang ada. Dengan berkurangnya kesempatan air hujan berinfiltrasi ke dalam tanah, maka limpasan permukaan air hujan akan menimbulkan genangan bahkan banjir pun dapat terjadi pula.
Dalam upaya mengantisipasi hal tersebut, maka diperlukan penerapan mengenai drainase permukiman yang berwawasan lingkungan, seperti pembuatan perkerasan beton lulus air (porous concrete), sebatas untuk konstruksi non structural seperti parkir kendaraan, trotoar, lapangan, dll. Cara membuat beton lulus air (porous concrete) semuanya tergantung pada adanya rongga udara dalam agregat atau pembentukan rongga udara dalam beton dengan faktor penting penyeragaman gradasi agregat yang digunakan.
Perkembangan mutakhir yang menjanjikan saat ini adalah penggunaan abu terbang sepenuhnya sebagai pengganti semen portland lewat proses yang disebut polimerisasi anorganik (geopolimer). Kegunaan abu terbang pada sejumlah proyek infrastruktur selain lebih ramah lingkungan, mengurangi jumlah energi yang diperlukan karena berkurangnya pemakaian semen portland, lebih awet, lebih murah, dan bahan ini juga tetap menunjukkan perilaku mekanik yang memuaskan. Diharapkan dari pembuatan beton lulus air (porous concrete) ini selain dapat menyerap air dengan cepat juga memiliki kekuatan mekanik yang sama dengan beton pada umumnya.

The increasing of vast region that covered by pavement with settlement development as does at urban affairs can cause time gather it water be much shorter, so that rainwater accumulation that gathered to exceed existing drainage capacity. With decrease it to chance rainwater infiltration into soil, so rain water level will evoke pool even flood even also can happen also.
In the effort anticipate the mentioned, so need applications hits settlement drainage with vision of environment, like maker pavement concrete passes water, limit of for construction non structural like vehicle parking, trottoir, field, etc. manner makes concrete passes water all depend on air hole existence in aggregate or air hole formation in concrete with aggregate gradation standardization important factor that is used.
Very latest development promise in this time fly ash use thoroughly in the place of cement portland via process that called inorganic polymerize (geopolymer). Fly ash use flies in amount of infrastructure project besides environment friendlier, decrease energy that need because decrease it cement use portland, durableer, cheaper, and this ingredient also permanent show mechanical behaviour. Supposed from concrete maker pass water this besides can absorb water swiftly has also mechanical strength equal to concrete in general.
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Depok: Fakultas Teknik Universitas Indonesia, 2008
S35755
UI - Skripsi Open  Universitas Indonesia Library
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Flewitt, P.E.J.
Bristol: Institute of Physical, 1994
620.11 FLE p
Buku Teks SO  Universitas Indonesia Library
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Ohio: CRC Press, 1968
691.07 PRO
Buku Teks SO  Universitas Indonesia Library
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"This time, the presentations of the workshop focused on the four subjects :
- Challenges in conclusive, realistic and system oriented materials testing
- Materials challenges for water supply
- Materials challenges in the extraction and recovery of scarce elements and minerals
- Materials challenges for nuclear fission and fusion.
This book comprises the peer-reviewed contributions during the 2nd International Workshop for Young Materials Scientists at BAM Federal Institute for Materials Research and Testing, Berlin, Germany."
Berlin: Springer, 2012
e20405918
eBooks  Universitas Indonesia Library
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"Eugenol containing materials are still widely used, both by the lay people or by the dentist. Professionally it is used to relieve dental pain by placing it in the cavity, or as a mixture for temporary filling, temporary cementation, and rot canal sealer. Eugenol, however, is also known to be toxic to the tissue, and aflatoxin, a substance known to be mutagenic, has been found in material labeled as clove oil. The purpose of this study was to investigate the safety of these materials, in particular the mutagenicity. The materials tested were imported eugenol material (95.8% eugenol) and local eugenol material (99.5%), both used by dentists, and clove-oil material (6.8% eugenol) used by the lay people. These materials were assayed in Ames test using Salmonella typhimurium TA 1535 an dTA 1537 strain without S-( mixture. It was shown that all revertants were below the negative control of the test. It was concluded that neither the eugenol used by the dentist nor the clove oil used for suppressing the dental pain by the lay people showed mutagenicity to Salmonella typhimurium TA 1535 and TA 1537 strain."
[Fakultas Kedokteran Gigi Universitas Indonesia, Journal of Dentistry Indonesia], 2007
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Artikel Jurnal  Universitas Indonesia Library
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Jiles, David C.
Boca Raton: CRC Press, 2008
620.1 JIL i
Buku Teks SO  Universitas Indonesia Library
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Oxford: BPS Professional Books , 1989
620.004 4 COM
Buku Teks SO  Universitas Indonesia Library
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