Apa yang anda tahu tentang field density test (Ujian ketumpatan Tanah). Field density test boleh ditakrifkan sebagai mengakaji ketumpatan kering tanah atau bahan-bahan turapan yang telah dilakukan pemadatan (Compaction) diukur untuk mementukan pemadatan dapat dicapai dicapai di dalam pembinaan. Ujian ketumpatan ini diambil di dalam kawasan pembinaan (in-situ / field) untuk menentukan/menilai ketumpatan tanah yang telah dilakukan pemadatan dengan menggunakan pasir.
Ujian ini dilakukan di tapak bina setelah pemadatan tanah telah dilakukan samaada tambakan tanah. ketumpatan tanah diperlukan menetukan keupadayaan galas tanah dengan meanganalisis kestabilan tanah, tekanan ke atas pemukaan asas dan rekabentuk struktur tanah. Ujian kawalan kualiti, di mana pemadatan diperlukan, dalam kes-kes seperti benteng dan pembinaan turapan atau jalan raya.
The procedure as follows:
1. Sand pouring cylinder of 3 litre/16.5 litre capacity, mounted above a pouring come and separated by a shutter cover plate.
2. Tools for excavating holes; suitable tools such as scraper tool to make a level surface.
3. Cylindrical calibrating container with an internal diameter of 100 mm/200 mm and an internal depth of 150 mm/250 mm fitted with a flange 50 mm/75 mm wide and about 5 mm surrounding the open end.
4. Balance to weigh unto an accuracy of 1g.
5. Metal containers to collect excavated soil.
6. Metal tray with 300 mm/450 mm square and 40 mm/50 mm deep with a 100 mm/200 mm diameter hole in the centre.
7. Glass plate about 450 mm/600 mm square and 10mm thick.
8. Clean, uniformly graded natural sand passing through 1.00 mm I.S.sieve and retained on the 600micron I.S.sieve. It shall be free from organic matter and shall have been oven dried and exposed to atmospheric humidity.
9. Suitable non-corrodible airtight containers.
10. Thermostatically controlled oven with interior on non-corroding material to maintain the temperature between 1050C to 1100C.
11. A dessicator with any desiccating agent other than sulphuric acid.
. Field density test boleh ditakrifkan sebagai mengakaji ketumpat...){kind=link}
very nice blog post. it is very useful blog.
ReplyDeleteget extra benefits please click here.
Structural Steel Fabrication, Structural Steel Erection Services,