|Table of Contents|

Preparation and properties of luminescent layer materials in fluorescent coating of pavement composite structure(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2022年3期
Page:
79-89
Research Field:
道路工程(道路交通功能材料专刊)
Publishing date:

Info

Title:
Preparation and properties of luminescent layer materials in fluorescent coating of pavement composite structure
Author(s):
HU Li-qun;  ZHAO Li-sha;  YANG Zheng
(School of Highway, Chang'an University, Xi'an 710064, Shaanxi, China)
Keywords:
road engineering;  fluorescent coating;  afterglow property;  luminescent material;  ratio of luminescent powder and resin;  pavement composite structure
PACS:
U414
DOI:
10.19721/j.cnki.1671-8879.2022.03.008
Abstract:
In order to study the luminescence performance of luminescent materials in highway engineering, long afterglow luminescence paints for fluorescent coating were prepared with strontium aluminate(SrAl2O4:Eu2+,Dy3+)luminescent materials by surface modified and the acrylic resin etc. The effects of the factors that different ratios of the luminescent powder and the resin, different dosage of the curing agent and different thicknesses of the coating film on the properties of the luminescent layer were studied, and the mixture ratio of luminescent layer materials was optimized. A composite pavement structure was built based on the super-hydrophobic anti-icing coating and the construction method of spreading on layers. The basic properties of the fluorescent coating were evaluated by surface hardness, wear resistance, adhesion and other indexes with reference to the specifications. Furthermore, the afterglow performance tests were carried out under both different weather conditions, and the skid resistance and adhesion between layers of the coating were also studied, so as to explore the feasibility of the composite fluorescent coating. The results show that the luminescent layer materials prepared with the pigment-to-binder ratio of 1:1 and the curing agent to coating mass ratio of 1:4 have better performance. The luminescent properties can be obviously improved by adding the coating thickness to some extent and when the thickness of coating is 1.13 mm, the luminous layer have better performance. At the same time, the working performance of the composite structure such as rigidity and water resistance are significantly improved, in which the remaining performance indexes can simultaneously meet the relevant requirements. It is economical and socially beneficial to use the composite pavement structure for self-luminescent road, and it has certain reference value for the design of fluorescent coating.9 tabs, 14 figs, 35 refs.

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Last Update: 2022-07-01