نتایج جستجو برای: metakaolinite
تعداد نتایج: 42 فیلتر نتایج به سال:
Geopolymers are amorphous silicate polymers that have been extensively studied due to their applications, scientific and technical relevance, potential as cement in substitution Portland. Much of the focus has use precursors aggregates rarely pure homogeneous with tailings being very common. The presence these impurities complicates interpretation some spectral methods, mainly infrared spectrom...
Metakaolinite-based geopolymer has been synthesized at about 25 °C from metakaolin which has been calcined in different temperatures (600-900 °C) and different Na2O/SiO2 ratio activator (0.3-1.1). Compressive strength and microstructure of cement pastes after 7-28 days curing at ambient temperature were measured. Compressive strength tests on the samples showed that the sample made with calcine...
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