Self-sensing cement-based composite was used to monitor the flow of traffic volume. Composite material was prepared with numerous percentages of carbon black (CB) and activated granulated ground blast furnace slag (GGBFS). This economical and concrete friendly material having piezo resistive properties helped to detect the wheel pressure induced by the vehicles passing over it. Initially, the pressure sensitivity of different mix designs was investigated in the laboratory and the samples having more sensitivity to applied load were used on the real road test for vehicle detection. Mechanical and microstructural properties of hydrated cement composite filled with CB and GGBFS as an active filler were also explored. Scanning electron microscopy/Electron dispersive spectroscopy (SEM/EDS) and X-ray diffraction (XRD) analysis were carried out to characterize the microstructure and hydration product development of different specimens at different curing ages. The tested cement composite gives a remarkable response to both compressive and vehicular loading with excellent mechanical and microstructural properties. The results also showed that the self-sensitive cement composite has a great potential to use as a device for traffic monitoring.

• Self-sensing cement composite for traffic monitoring in intelligent transport system
  • 1. Introduction
  • 2. Materials and Methods
    • 2.1. Materials
    • 2.2. Preparation of smart cement-based sensor
    • 2.3. Compressive strength test
    • 2.4. Tensile strength test
    • 2.5. Analytical characterizations
    • 2.6. Piezoresistivety of cement-based sensors
    • 2.7. Road test
  • 3. Results and Discussion
    • 3.1. Compressive strength
    • 3.2. Tensile strength
    • 3.3. Microstructure
    • 3.3.1 X-ray diffraction (XRD)
    • 3.3.2. SEM / EDS
  • 4. Conclusion
  • 5. Acknowledgements

Magazine of Civil Engineering / Санкт-Петербургский политехнический университет Петра Великого. — Санкт-Петербург: СПбПУ, 2020-. — Периодичность: 8 раз в год. — Выходит с 2020 г. — Загл. с титул. экрана. — Свободный доступ из сети Интернет (чтение, печать, копирование). — Электрон. журнал. — Текст: электронный

Magazine of Civil Engineering / Санкт-Петербургский политехнический университет Петра Великого. — Санкт-Петербург: СПбПУ, 2020-. № 5 (105), 2021. — 1 файл (18 Мб). — Свободный доступ из сети Интернет (чтение, печать, копирование). — Электрон. журнал. — <URL:http://elib.spbstu.ru/dl/2/j22-84.pdf>.