THE EFFECT OF AN ORGANOMETALLIC CATALYST ON THE PROPERTIES OF PEN GRADE BITUMENS
Journal Title: Structure and Environment - Year 2018, Vol 0, Issue 4
Abstract
The research objective of the experiments and analyses described in this paper was evaluation of the effect of a specific organometallic catalyst on the properties of 50/70 and 70/100 pen (paving) grade bitumens. The catalyst under analysis is anhydrous iron (III) chloride. It was added to the bitumens at the percentages of 0.5%, 1.0%, 1.5% and 2%. The research included determination of penetration at 25°C, ring and ball softening point test and Fraass breaking point test. The tests were carried out at three states of the tested binder: non-aged, after short-term ageing (RTFOT procedure) and after longterm ageing (PAV procedure). Additionally, viscosity was determined before and after RTFOT ageing. The experimental data were used to determine the penetration index (PI) value and the plasticity range of bitumens. An increase of the bitumen hardness was observed due to organometallic catalyst addition, particularly noticeable after long-term ageing. The catalyst was found to reduce the viscosity of bitumens in the production temperature range
Authors and Affiliations
Paweł Mieczkowski
Keywords
Related Articles
- EP ID EP535021
- DOI 10.30540/sae-2018-031
- Views 79
- Downloads 0
PHOSPHORUS SOLUBILIZING BACTERIA – REVIEW ARTICLE
This article reviews the Phosphorus Solubilizing Bacteria, discusses the types of organic acids produced by them, as well as the impact on economy with non-renewable sources, such as phosphate rocks. In addition, the pho...
STAINLESS STEEL BRIDGES
The paper concerns problems of application of stainless steel as construction material in bridges. The characteristics and properties of stainless steel are discussed, taking into consideration its possibilities for usin...
REALIZATION OF UNDERGROUND OBJECTS BY THE OPEN CAISSON METHOD IN CONDITIONS OF BUILT-UP AREAS
The article presents the construction of underground objects by open caisson method, under conditions of built-up areas. The technological stages of the open caisson sinking have been separated. The work identified the m...
A FINITE DIFFERENCE SCHEME TO SOLVE ONE-DIMENSIONAL PROBLEMS ASSOCIATED WITH SOIL FREEZING AND THAWING
A finite difference scheme, which can be easily used for PC-programming to solve one-dimensional problems associated with soil freezing and thawing is presented. The method takes into account the real phase equilibria in...
WORKING PARAMETERS OF GAS HEAT PUMP IN USE WITH LOW-POTENTIAL GEOTHERMAL ENERGY
The article presents the operating parameters of the heat pump for gas with low potential geothermal energy. It describes the measurement device and implementations of the experimental measurements resulted in a database...