4. Mechanical Properties of Fiber Reinforced Geopolymers
4.1 Compressive strength
Geopolymers are provided with excellent mechanical properties, among
which, compressive strength is the most important index. The compressive
strength of the specimen depends on the flow resistance of the mixture,
while the flow resistance and slump depend on the type, size and weight
of the fiber. The proper uniformity and high pressure compaction between
the fiber and the cement matrix can improve the compressive strength by
the application of fibers. However, for geopolymer, different fibers
exercise different effects on the compressive strength[32].