|Table of Contents|

Applicability of light-transmitting concrete(LTC) applied to photovoltaic pavement(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:
90-98
Research Field:
道路工程(道路交通功能材料专刊)
Publishing date:

Info

Title:
Applicability of light-transmitting concrete(LTC) applied to photovoltaic pavement
Author(s):
LI Yan1;  ZHANG Jiu-peng1;  HUANG Guo-jing1;  HE Yin-zhang1;  GUO Xiao-dong2
(1. Key Laboratory of Highway Engineering in Special Region of Ministry of Education, Chang'an University,Xi'an 710064, Shaanxi, China; 2. Zibo City Planning and Design Research Institute Co., Ltd, Zibo 255037, Shandong, China)
Keywords:
road engineering;  light-transmitting concrete;  photovoltaic pavement;  interlayer characteristics;  bonding performance;  power generation efficiency
PACS:
U414
DOI:
10.19721/j.cnki.1671-8879.2022.03.009
Abstract:
In order to study the feasibility of the application of light-transmitting concrete with waste tempered glass as aggregate and epoxy resin as cement in solar pavement, the interlayer shear test and pull-out testwere first utilized to determine the interlayer adhesion between the light-transmitting concrete layer and the cement concrete layer. Secondly, forming light-transmitting concrete specimens of different thicknesses, were conduct light transmittance test to explore the influence of thickness on light transmittance. Finally, actual power generation tests were performed on the designed photovoltaic(PV)structures to verify practical application and to determine the optimal power generation efficiency and load by fitting equations. The results show that the cement concrete layer cured for seven days and then the preparation of the light-transmitting concrete surface layer can achieve the effect of bonding of ordinary asphalt concrete pavement, and the bonding characteristics meet the specification requirements. The growth rates of tensile strength and shear strength of cement concrete layer after seven days of curing were 32.8% and 28.2% respectively compared to three days of curing. The light transmittance of light-transmitting concrete(LTC)is negatively related to its thickness, and the thickness of light-transmitting concrete required for the target light transmittance can be inversely calculated according to the fitting formula. Combining with the sunlight irradiance in Xi'an during a day, the optimal load of the thin-film solar panel is determined to be 30 Ω,and the power that can be generated per day is measured to be 0.203 kW·h/m2, which can be practiced for road use after the performance optimization. The above research results verify that light-transmitting concrete has good interlayer bonding characteristics and considerable power generation in solar pavement, which can provide scientific basis and theoretical support for the multi-scenario application of light-permeable concrete on solar pavement.6 tabs, 10 figs, 30 refs.

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Last Update: 2022-07-01