Durability and Safety Performance of Pavements with Added Photocatalysts
| Autor: | Marta Castellote, Eva Jimenez-Relinque, Francisco Rubiano, Maria Grande |
|---|---|
| Přispěvatelé: | European Commission, Jiménez-Relinque, Eva, Castellote, Marta, Jiménez-Relinque, Eva [0000-0003-1825-3615], Castellote, Marta [0000-0002-9758-0341] |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Technology
Material de construcción Materials science QH301-705.5 Pavimentos -construcción slip resistance QC1-999 Nanoparticle Fotocatálisis pavements TiO2 General Materials Science Composite material Biology (General) Porosity Instrumentation QD1-999 3312.09 Resistencia de Materiales Fluid Flow and Transfer Processes Ensayos (propiedades o materiales) 3312.08 Propiedades de Los Materiales Process Chemistry and Technology Physics General Engineering nanoparticles photocatalytic durability asphalt concrete 3313.04 Material de Construcción Engineering (General). Civil engineering (General) Durability Casting Computer Science Applications Chemistry 3312.12 Ensayo de Materiales Asphalt visual_art visual_art.visual_art_medium Slurry Photocatalysis Tile TA1-2040 Durabilidad |
| Zdroj: | Applied Sciences, Vol 11, Iss 11277, p 11277 (2021) Digital.CSIC. Repositorio Institucional del CSIC instname Applied Sciences; Volume 11; Issue 23; Pages: 11277 |
| ISSN: | 2076-3417 |
| Popis: | The use of photocatalysts to enhance the performance of construction materials with large surfaces exposed to sunlight has become an increasingly common practice in recent decades. Although construction material durability is of crucial importance and is extensively studied when incorporating new additions, very few studies have specifically addressed the effects when adding photocatalysts. This paper discusses the effect of TiO2-based photocatalysts on pavement durability (porosity, time of transmission of ultrasonic pulses, freeze-thaw resistance and capillary water absorption) and safety (slip resistance and roughness) by comparison of commercial photocatalytic materials of different families and twin materials without the photocatalyst added. The analysis covers concrete tile pavements and porous asphalt treated with photocatalysts in the form of sprayed emulsions, slurry admixtures or built-in during casting. The findings show that changes in the properties of a construction material induced by photocatalytic functionality depend primarily on the porous structure of the matrix and the properties of the resulting photocatalytic surface. This study was co-funded by the LIFE programme (LIFE PHOTOSCALING, LIFE 13/ENV/ES/001221, http://www.life-photoscaling.eu/). |
| Databáze: | OpenAIRE |
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