Research Topic

Fiber Reinforced Geopolymer and Alkali Activated Materials Composites

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About this Research Topic

Conventional concrete and cement-based composites are becoming less popular in the construction industry due to the CO2 emissions associated with the manufacture of ordinary Portland cement (OPC). Among various alternative binders, alkali activated materials (AAM) have gained popularity among researchers and ...

Conventional concrete and cement-based composites are becoming less popular in the construction industry due to the CO2 emissions associated with the manufacture of ordinary Portland cement (OPC). Among various alternative binders, alkali activated materials (AAM) have gained popularity among researchers and the construction industry due to their similar properties to conventional concrete. Like OPC concrete, AAM and their composites are equally brittle but exhibit lower tensile and flexural strength. To address these shortcomings, fibers of different types (short, continuous, metallic, natural, polymeric, etc.) are used to reinforce the AAM. The addition of these fibers has been widely shown to improve the tensile/flexural strength and ductility of AAM and their composites.

The goal of this Research Topic is to showcase different types of fiber reinforced AAM and composites exhibiting different engineering properties ranging from mechanical and durability properties to fire resistance. Being a relatively new type of fiber reinforced composite this Research Topic will also aim to publish studies on bond behavior of different types of fibers in AAM, the effect of the matrix of AAM on the durability of different types of fibers, roles of different nano and ultrafine materials in improving the properties of fiber reinforced AAM, its fire and spalling resistance behavior, and so on. The above properties are very useful to benchmark its performance against cement-based alternatives.

Researchers in the field of fiber reinforced geopolymer concretes, AAM and their composites are encouraged to submit their research works in the form of original research, review, mini-review, or perspective in this Research Topic on the following areas:
· Experimental, analytical, and numerical studies on fiber reinforced AAM and geopolymer composites.
· Studies on fiber reinforced AAM and geopolymer composites containing various short and continuous fibers.
· Behavior of fiber reinforced AAM and geopolymer composites under extreme loadings.
· Structural application of fiber reinforced AAM and geopolymer composites.
· Use of nano and ultrafine materials in improving the engineering properties of fiber reinforced AAM and geopolymer composites.
· Rheological, mechanical and durability properties of fiber reinforced AAM and geopolymer composites.
· AAM/geopolymer composites containing waste and recycled fibers and aggregates.
· Bond behavior of fiber reinforced AAM and geopolymer composites.
· Long-term performance of fiber reinforced AAM and geopolymer composites e.g. creep, shrinkage, sustained loads.
· Self-healing properties of fiber reinforced AAM and geopolymer composites containing nano materials


Keywords: Geopolymer, Fibers, alkali activated materials, mechanical and durability properties, fire resistance, dynamic loading


Important Note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.

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