bitum cu penetratie redusa
English translation: Hard/oxidized/blown/low penetration grade bitumen
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| 13:58 Feb 25, 2014 |
| Romanian to English translations [PRO] Tech/Engineering - Chemistry; Chem Sci/Eng / prepararea mixturilor asfaltice cu bitum dur | |||||||
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|  Selected response from: Claudia Coja Local time: 17:14 | ||||||
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| 5 +1 | low penetration grade bitumen |
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| 3 | Hard/oxidized/blown bitumen |
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Answers
8 mins confidence: 
Hard/oxidized/blown bitumen Explanation: What is Oxidized Bitumen? Blown bitumen grades or Oxidized Bitumen are produced by passing air through the penetration grades. This process gives the bitumen more rubbery properties than its original formula and they are simply harder bitumen. Hard bitumen under controlled temperature conditions is widely used as an anti-slip layer compound in the piling industry, for manufacture of roofing felts, the roofing and waterproofing industries, for sound dampening felts and under carriage sealant in the automotive industry, electric cable joint protection, joint filling compound, sealant compound and many others. Also used in sealing saw cuts and joints where expected movements are minimum. It is also used in the manufacturing of bituminous marine mastic for the oil & gas pipeline joints. http://www.oxigil.com/eng/oxidized-bitumen/what-is-oxidized-... -------------------------------------------------- Note added at 10 mins (2014-02-25 14:09:33 GMT) -------------------------------------------------- COMPANIA NAŢIONALĂ DE AUTOSTRĂZI ŞIDRUMURI NAŢIONALE DIN ROMÂNIA S.A. BULETINTEHNIC RUTIER Anul V, nr. 5-6, mai-iunie 2006 BITUM DUR – hard bitumen (pag. 14) http://www.scribd.com/doc/207508280/btr-05-06 |
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15 mins confidence: peer agreement (net): +1
peer agreement (net): +1low penetration grade bitumen Explanation: ... Low penetration grade bitumen (also known as hard bitumen) is very difficult to emulsify as is well known in the art. The harder the bitumen, the lower the needle penetration value and the higher the softening point, but also the more difficult it becomes to emulsify the bitumen into storage stable, fast breaking emulsions. Source: http://www.google.com/patents/US20120244278 |
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