The project in five facts.
Challenge, approach and results.
To ensure a high-quality, durable asphalt pavement for optimal comfortable driving for road users, it is necessary to consider various factors. It begins with the road design itself, where it is necessary to select appropriate bituminous mixtures for a specific purpose of use. The problem with this method lies primarily in the operating principle of the isotope probe, which works on the principle of reflection of radioactive rays. Despite some difficulties, the measurement results with the electromagnetic probe, when used correctly, are comparable to previously known methods for determining the density of asphalt layers.
Problem
To ensure a high-quality, durable asphalt pavement for optimal comfortable driving for road users, it is necessary to consider various factors. It begins with the road design itself, where it is necessary to select appropriate bituminous mixtures for a specific purpose of use. It continues at the asphalt plant, where the bituminous mixture is produced.
To achieve optimal road durability, it is necessary to install the selected bituminous mixture with high quality. During installation, it is very important to compact the bituminous mixture correctly. It is important to continuously monitor the uniformity and degree of compaction on site during installation on the still-hot installed asphalt layer.
For this purpose, a non-destructive method for measuring density with an isotope probe has been used until now.
Solution and Method
The problem with this method lies primarily in the operating principle of the isotope probe, which works on the principle of reflection of radioactive rays. Legislative requirements for storage, transport and use of devices that emit ionising radiation are very strict, and workers are subject to special medical supervision to protect their health. For these reasons, a tendency has emerged for a new method of measuring asphalt layer density.
Manufacturers have thus developed an electromagnetic probe that works on the principle of dielectric properties of materials. Working with the electromagnetic probe does not require any additional training or expensive procedures for obtaining appropriate permits. Due to the different measurement principle, the work is also much easier, faster and consequently also cheaper.
Results
Despite some difficulties, the measurement results with the electromagnetic probe, when used correctly, are comparable to previously known methods for determining the density of asphalt layers.
Module, programme and stories.
Your diploma project for a real company.
A diploma thesis at Academia solves a challenge from a company – often the one where you do your 800 hours of placement. Read about the Gradbeništvo module or book a consultation.