Research of carbon fibre grille reinforced composites in airport pavement snowmelt

Abstract

In this paper, the method of melting snow on airport pavement with carbon fibre grille reinforced composites is presented to avoid the adverse effects of snow-melting chemicals. The strength and resistance of different composites are analysed. The field snow-melting experiments of pavement in which carbon fibre grilles are embedded in different depths are conducted when the snow is heavy. The temperatures along the depth of pavement are analysed at different times. It is shown that, with an input power of 300 W m −2 , the 2.6 cm thick snow can be melted within 4 hours, which is just for melting snow at this condition. The snow-melting of 5 cm embedded depth of carbon fibre grille is better. The findings indicate that the method of melting snow on airport pavement containing the grille made of carbon fibre heating wires and steel bar is feasible in the snowy weather condition.

A Full-Scale Test on Enhancing the Thermal Performance of a Concrete Slab Embedded with a MWCNT Heating Module Exposed to an Outdoor Environment

“…In previous studies related to the heating of cementitious composites in outdoor environments [8,22,[27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44], tests were conducted to generate heat in concrete slabs, and the presence of snowmelt attributed to the generated heat was confirmed. However, the optimized heating modules for use in a concrete slab were not examined.…”

“…In most other studies [8][9][10][11][12][13][14][15][16][17][18][19][20][21], the thermal performance of heating cementitious composites was analyzed in laboratories indoors. Hence, studies have been recently conducted to analyze the thermal performance of heating cementitious composites in outdoor environments [8,22,[27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44]. In these studies, a concrete slab (size = 3000 × 3000 × 100 mm 3 ) was fabricated in an outdoor environment, and CNT heating modules were embedded in the center of the concrete slab.…”

“…In a study on snowmelt on outdoor airport pavements, a melting test was conducted based on the use of carbon fiber, and grillereinforced composites. In the test, the rate of snowmelt in the entire area was analyzed; all the snow on the top surface of the concrete slab melted when heat was generated for 3.5 h [27]. Additionally, studies have been conducted experimenting with the thermal properties of cementitious composites using nanomaterials other than CNT [8,[28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44].…”

Effects of Thermal Conductive Materials on the Freeze-Thaw Resistance of Concrete

“…In particular, Matalkah et al [ 4 ] showed that the combination of freeze–thaw conditions and chemical salts accelerated the deterioration of concrete. Thus, researchers devised heating systems for reducing the use of chemical salts and preventing the formation of black ice [ 5 , 6 , 7 ]. The studied pavement heating systems showed a good performance on snow-melting; however, the big problem was that reaching time to the surface of pavement took a long time [ 5 , 6 , 7 ].…”

“…Thus, researchers devised heating systems for reducing the use of chemical salts and preventing the formation of black ice [ 5 , 6 , 7 ]. The studied pavement heating systems showed a good performance on snow-melting; however, the big problem was that reaching time to the surface of pavement took a long time [ 5 , 6 , 7 ]. To overcome this problem, research was conducted to enhance the thermal conductivity of the materials themselves.…”