Determination of Mass of Bitumen in Bitumen Sheets by Calcination Method

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12410%2F22%3A43906189" target="_blank" >RIV/60076658:12410/22:43906189 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Determination of Mass of Bitumen in Bitumen Sheets by Calcination Method

Popis výsledku v původním jazyce

The work analyses the problem of determination of the mass of bitumen in waterproofing membranes -bitumen sheets by method of the calcination. The waterproofing function in bitumen sheets is ensuredby the bitumen mass. The amount of bitumen mass is not prescribed in the European standards forbitumen sheets. The amount of bitumen is specified in some national standards. The amount ofbitumen was determined by the extraction method and the calcination method for bitumen sheets andthe sample of bitumen coating. The calcination method is not described in the standards, only in theforthcoming standard prEN 544:2020 for bitumen sheets. To compare the two methods, the sampleof bitumen sheet and a sample of bitumen coating material were used. The coating of bitumen sheetand the sample of bitumen mass were elastomeric character (SBS). The bitumen coating of knowncomposition was prepared in the laboratory. By comparing results of both methods, it was found thatthe mass of the bitumen obtained from the bitumen coating material by extraction was 0.7 % higherthan the mass of the bitumen obtained by the calcination method.This small difference was due to thefact that the same amount of bitumen coating was tested. During the testing of the bitumen sheet, itwas found that the calcination time of 2 hours according to prEN 544:2020 is insufficient for thecalcination of bitumen sheets. The mass of the bitumen obtained from the bitumen sheets by extraction was 0.6 - 1.3% lower than the mass of bitumen obtained by the calcination method. The terminationof the calcination was performed when the weight loss of the test specimen was less than 0.03 g. Thetime of the calcination of the bitumen sheet and the bitumen coating material, with a comparableamount of bitumen material, differed by 0.5 hour, for the calcination of bitumen sheets at least 4hours. The prEN 544:2020 methodology cannot be used. The difference in the results of both methodswas 0.6 - 1.3 % depending on the considered mass of bitumen of the carrier. The higher differencebetween the two methods is due to the different thickness and the mass of bitumen of the testspecimens. In contrast to the bitumen coating material, the mass of bitumen of the bitumen sheetdiffered for both methods. Furthermore, it was found that the weight and arrangement of the testspecimen in the incinerating dish has an effect on the time of the calcination. The calcination methodis as the time consuming as the extraction method for bitumen sheets with the bitumen coatingmaterial of elastomeric character. The extraction method is more accurate. © 2022, Petroleum and Coal. All Rights Reserved.

Název v anglickém jazyce

Determination of Mass of Bitumen in Bitumen Sheets by Calcination Method

Popis výsledku anglicky

The work analyses the problem of determination of the mass of bitumen in waterproofing membranes -bitumen sheets by method of the calcination. The waterproofing function in bitumen sheets is ensuredby the bitumen mass. The amount of bitumen mass is not prescribed in the European standards forbitumen sheets. The amount of bitumen is specified in some national standards. The amount ofbitumen was determined by the extraction method and the calcination method for bitumen sheets andthe sample of bitumen coating. The calcination method is not described in the standards, only in theforthcoming standard prEN 544:2020 for bitumen sheets. To compare the two methods, the sampleof bitumen sheet and a sample of bitumen coating material were used. The coating of bitumen sheetand the sample of bitumen mass were elastomeric character (SBS). The bitumen coating of knowncomposition was prepared in the laboratory. By comparing results of both methods, it was found thatthe mass of the bitumen obtained from the bitumen coating material by extraction was 0.7 % higherthan the mass of the bitumen obtained by the calcination method.This small difference was due to thefact that the same amount of bitumen coating was tested. During the testing of the bitumen sheet, itwas found that the calcination time of 2 hours according to prEN 544:2020 is insufficient for thecalcination of bitumen sheets. The mass of the bitumen obtained from the bitumen sheets by extraction was 0.6 - 1.3% lower than the mass of bitumen obtained by the calcination method. The terminationof the calcination was performed when the weight loss of the test specimen was less than 0.03 g. Thetime of the calcination of the bitumen sheet and the bitumen coating material, with a comparableamount of bitumen material, differed by 0.5 hour, for the calcination of bitumen sheets at least 4hours. The prEN 544:2020 methodology cannot be used. The difference in the results of both methodswas 0.6 - 1.3 % depending on the considered mass of bitumen of the carrier. The higher differencebetween the two methods is due to the different thickness and the mass of bitumen of the testspecimens. In contrast to the bitumen coating material, the mass of bitumen of the bitumen sheetdiffered for both methods. Furthermore, it was found that the weight and arrangement of the testspecimen in the incinerating dish has an effect on the time of the calcination. The calcination methodis as the time consuming as the extraction method for bitumen sheets with the bitumen coatingmaterial of elastomeric character. The extraction method is more accurate. © 2022, Petroleum and Coal. All Rights Reserved.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

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OECD FORD obor

20306 - Audio engineering, reliability analysis

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Petroleum &amp; Coal journal

ISSN

1337-7027

e-ISSN

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Svazek periodika

64

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

BR - Brazilská federativní republika

Počet stran výsledku

11

Strana od-do

"742 "- 752

Kód UT WoS článku

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EID výsledku v databázi Scopus

2-s2.0-85153701537