Effect of Test Voltage and Age on the Resistivity of Carbon Fiber Reinforced Concrete

Abstract

Using the four-electrode method, the resistivity of carbon fiber reinforced concrete (CFRC) with different fiber content and different curing ages was tested with different voltages. Starting from the relationship between fiber content, test voltage, curing age and resistivity, the conductive properties of CFRC were analyzed. The results show that: the greater the fiber content, the better the conductivity of CFRC; when the test voltage is greater than 15 V, the electrical resistivity of CFRC tends to be stable; the electrical resistivity of CFRC is closely related to the curing age.

Effect of voltage on mechanical properties of carbon fiber reinforced concrete

“…Carbon fiber has a unique roughness and thermal conductivity, making it more applicable in concrete strengthening than metal and other building materials [5]. Many researchers have investigated the electrical conductivity and electrothermal properties of carbon fiber reinforced concrete, but there have been few studies on how its strength changes with voltage [6]. Carbon fiber conductive concrete has the potential to be used in the practical engineering of self -checking roads and snow melting Error!…”

Study of Flexural Stress in Facade Panels of GRC Fiberglass-Reinforced Concrete Elements With Additions of Aluminosilicate and Polymeric Materials

“…Otros intentos posteriores por solucionar el problema usaron otro tipo de enfoque, ya no mediante la mejora de la fibra, sino mejorando la matriz, mediante adiciones, ésta línea investigativa es la que inspira a la realización del presente estudio. En ensayos experimentales realizados en España, Estados Unidos & Reino Unido (Bartos & Zhu, 1996;Bentur & Mindess, 2020;Correia et al, 2006;Enfedaque, Paradela, & Sánchez-Gálvez, 2012a;Enfedaque et al, 2015bEnfedaque et al, , 2015cEnfedaque et al, , 2015dMarikunte et al, 1997;Payakaniti et al, 2018;Sánchez Paradela & del Águila, 1992;Wang et al, 2021;Wen et al, 2019) en el campo de la investigación han aportado que la adición de puzolanas, tales como humo de sílice (SF), Cenizas volantes (FA), Metacaolín (MK) y tratamientos con polímeros acrílicos pueden mitigar el envejecimiento del GRC, sin embargo, estos programas experimentales dejan brechas en el conocimiento, ya que no definen ningún método, los resultados son diversos y dependientes de los programas experimentales propuestos y de los aditivos y mezclas que varían en su proporción.…”