Paweł Piątek
Technical Transactions, Mechanics Issue 2-M (7) 2015, 2015, pp. 211-219
The assessment of road pavements in terms of their properties and surface features is both complex and difficult. The indicators which describe the surface quality are eg. a longitudinal and transverse profile, a coefficient of friction, the International Roughness Index (IRI) and surface cracks. The article presents a method of using the data describing a real longitudinal profile of pavements, which was obtained by way of a self-constructed device named Walking-Profiler. It also proposes a way of calculating it with the use of numerical modelling of a Planograph, and also (simultaneously) the collected data can be used to calculate the International Roughness Index.
Paweł Piątek
Technical Transactions, Volume 7 Year 2017 (114), 2017, pp. 183-190
https://doi.org/10.4467/2353737XCT.17.120.6661
Analysis of (cylindrical) samples of asphalt concrete, in terms of weight and size distribution of different
fractions of aggregates and by means of mechanical methods is a complicated and time consuming
process. This article presents a proposal of a method for the same kind of analysis, but without the need for machining. The suggested method is based solely on a computer based analysis of photographs of the samples. The mechanism described in this paper is only a preliminary process, illustrating the potential use of an image analysis for this type of study.