Carbon Fiber-Reinforced Geopolymer Composites: A Review

Abstract

The article summarizes the state of the art in carbon-reinforced geopolymers. It takes into consideration various types of matrices and types of carbon fibers (CFs). The article shows the growing importance of this composite in the investigation conducted in recent years. Today, it is one of the most promising modern research areas, taking into account the decrease in the prices of CFs and their appearance on the market waste-based CFs, as well as research on new methods of producing CFs from sustainable precursors. The research methods applied in the article are critical analyses of the literature. The results of the literature analysis are discussed in a comparative context, including production methods and the influence of CFs on geopolymer properties. The potential applications for carbon fiber-reinforced geopolymer composites are shown. Additionally, the current research challenges for geopolymer composites reinforced by CFs are presented.

Use of Geopolymer and Carbon Fiber-Reinforced Polymer for Repairing Reinforced Concrete Deck Soffit

“…The compressive strength of the repair materials was determined through compressive tests conducted in accordance with ASTM C109/C109M-21 [ 30 ]. The average compressive strength of all repair materials after seven days is presented in Table 5 .…”

“…Notably, it exhibits an environmentally friendly composition that diminishes reliance on natural resources and promotes the recycling of industrial waste. Moreover, geopolymer material possesses a reduced carbon footprint, improved durability, and exceptional versatility, enabling customization to suit particular application needs [ 30 , 31 , 32 ]. It is worth noting that existing literature primarily concentrates on examining the efficacy of geopolymer materials in repairing cracks [ 33 , 34 , 35 , 36 ], while research specifically comparing inclined surface repair methods remains limited.…”

Alkali-Activated Copper Slag with Carbon Reinforcement: Effects of Metakaolinite, OPC and Surfactants

“…However, methods including plasma treatment, silica or calcite deposition on carbon fiber, were suggested to improve the wettability and enhance the adhesion between the fiber and cementitious matrices [39][40][41][42]. Fiber surface chemistry modification and nanomaterials' incorporation in the binder were also observed to enhance the fiber/matrix interface in alkali-activated composites [43][44][45][46]. For instance, the addition of 2 wt.% nano titanium dioxide in alkali-activated fly ash reinforced by micro carbon fiber was observed to increase the fracture toughness by 29% in comparison to the control sample, due to possible filling behavior and enhancement of the carbon fiber-matrix interfacial zone, which induced a hindrance to crack formation [46].…”

Green Building Materials for Circular Economy - Geopolymer Foams

“…The next anticipated achievement involves the development of intelligent materials, which will process the capability to control specific material parameters [2][3]. Moreover, these materials can exhibit additional functions or features, such as promoting a positive environmental impact or accumulating electricity [3][4][5].…”

“…The significance of additional materials features is particularly pronounced in the context of optimizing the management of raw materials and facilitating the transition from a global economy to a circular economy. It is noted that the construction industry is one of the sectors that have a significant impact on waste generation and pollution [2][3][4][5][6], therefore, the use of waste materials and low-carbon footprint materials is becoming increasingly important. The present technology used for Portland cement production, which has been inherited from the 20th century, suffers from various drawbacks [6].…”