| Autor: |
Manić Nazim, Tarić Mirsad, Šerifi Veis, Džubur Žana |
| Jazyk: |
English<br />Romanian; Moldavian; Moldovan |
| Rok vydání: |
2014 |
| Předmět: |
|
| Zdroj: |
Annals of the Oradea University: Fascicle Management and Technological Engineering, Vol XXIII (XIII) (2014) |
| Druh dokumentu: |
article |
| ISSN: |
1583-0691 |
| Popis: |
In order to research the influence of the dimensions there have been used the samples of slotted beams on two supports and loaded by force capacity of P = 200 kN and the sensitivity of 100 N fractured (load cell), in the middle, deformations were measured at the point of load and the top of each slot of 50 mm with the sensitivity instrument of 100x10-6 mm LVDT (Tokyo Sokki Kenkyujo Co.SDP-50C). During load all deformations are directly stored with the data logger (30 channels Bucem) that is constantly connected to the computer. The thickness of all samples is constant t = 4 cm and the other two dimensions of height h and length L are changed proportionally. For testing are used three different sizes of the beams and from each sizes are used the three samples. To a mixture of concrete were used two aggregate fractions. A large fraction is 4.76 to 10 mm, smaller fraction is 3 to 4,76 mm. First, sand is put into a mixer, followed by gravel and cement in the dry state and this is going to be mixed for about 2 minutes, after that, the water is added and mixing is going to be carried out for about 2 minutes. From the same samples were set aside the 3 samples in the molds of cylindrical forms with a diameter of 150 mm and a height of 300 mm to determine the brand of concrete. There was used the portland cement (350). |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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