Novel hydrothermal synthesis of tobermorite fibers using Ca(II)-EDTA complex precursor

A novel method for synthesizing large size tobermorite fibers without special instruments, high temperature and long time was developed. Tobermorite fibers with 40–100 μm in length and 0.1–1 μm in diameter were hydrothermally synthesized at 200 °C for 5 h using a Ca (II)-EDTA complex precursor. And the effect of experiment conditions on the phase, morphology and composition of final products were investigated.