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Romanian to English: SR 174-1:2009 General field: Tech/Engineering Detailed field: Construction / Civil Engineering
Source text - Romanian 2.2.1.2 Caracteristicile fizico-mecanice
2.2.1.2.1 Caracteristicile fizico-mecanice ale mixturilor asfaltice se determină pe corpuri de probă confecționate din mixturi asfaltice preparate în laborator pentru stabilirea dozajelor optime și din probe prelevate pe parcursul execuției lucrărilor, de la malaxor sau de la așternere, precum și din stratul gata executat, pentru verificarea calității mixturilor asfaltice.
2.2.1.2.2 Prelevarea probelor de mixturi asfaltice pe parcursul execuției lucrărilor, precum si din stratul gata executat se efectuează conform SR EN 12697-27.
2.2.1.2.3 Caracteristicile fizico-mecanice ale mixturilor asfaltice preparate cu bitum neparafinos pentru drumuri/ bitum aditivat trebuie să se încadreze în limitele din tabelele 8 și 9.
2.2.1.2.4 Caracteristicile fizico-mecanice ale mixturilor asfalticepreparate cu bitum neparafinos pentru drumuri/ bitum aditivat, determinate prin încercări dinamice, respectiv:
- Rezistența la deformarție permanentă, (încercarea la compresiune ciclică și încercarea la ornieraj) reprezentată prin:
- Viteza de fluaj și fluajul dinamic al mixturii asaltice, determinate prin încercarea la compresiune ciclică triaxială pe probe cilindrice din mixtură asfaltică, conform SR EN 12697-25, metoda B, pct. 5,2,c.
- Viteza de deformație la făgașe și adâncimea făgașului, detreminate prin încercarea wheel-tracking pe plăci din mixtura asfaltică (carote) conform SR EN 12697-22, dispozitiv mic în aer, procedeu B:
- Rezistența la oboseală, determinată prin încercarea la oboseală a unei probe cilindrice din mixtură asfaltică, conform SR EN 12697-24, anexa E;
Translation - English 2.2.1.2 Physical and mechanical characteristics
2.2.1.2.1 The physical and mechanical characteristics of the asphalt mixtures shall be tested on samples taken from asphalt mixtures prepared in laboratory in order to establish the optimum dosages and on samples taken from the laying place during execution, at mixing or at laying, as well as from an executed layer in order to check the quality of the asphalt mixture.
2.2.1.2.2 Sampling of asphalt mixtures during execution as well as from the executed layer shall be carried out as per SR EN 12697-27.
2.2.1.2.3 The physical and mechanical characteristics of the asphalt mixtures prepared
with non-paraffin bitumen for roads/ bitumen with additives must comply with the tolerances specified in tables 8 and 9.
2.2.1.2.4 The physical and mechanical characteristics of the asphalt mixtures prepared
with non-paraffin bitumen for roads/ bitumen with additives, determined by mechanical tests, such as:
- Resistance to permanent deformation, (cyclic compression and rutting tests) represented by:
- Creep speed and dynamic creep of the asphalt mixture, determined by the triaxial cyclic loading test on cylinders taken from the asphalt
mixture, as per SE EN 12697-25, method B, item 5.2 c.
- Deformation speed of the ruts and rut depth, determined by the wheel-tracking test on asphalt cores, as per SR EN 12697-22, small device in ventilated area, method B.
- Fatigue strength, determined by the fatigue test run on an asphalt cylinder, as per SR
EN 12697-24, Annex E;
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Bachelor's degree - Babes-Bolyai Univ.
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Years of experience: 22. Registered at ProZ.com: Jan 2006.
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