Crack-free caustic magnesia-bonded refractory castables

Particle grading effect on properties of reactive MgO‐bonded castables

“…This is because (1) the slag corrosion and infiltration resistance of castables could be improved due to the in‐situ formed MgAl 2 O 4 spinel, 5 (2) and low energy consumption and CO 2 emission during RM preparation 31,32 . To evaluate the feasibility of RM‐bonded castables in industrial application, numerous researches have been carried out 6,13,27,29,30 . By modifying the hydration behavior of MgO using formic acid and or aluminum lactate, 25 crack‐free RM‐bonded castables were prepared 27 .…”

“…By modifying the hydration behavior of MgO using formic acid and or aluminum lactate, 25 crack‐free RM‐bonded castables were prepared 27 . The flow‐ability and explosion resistance during drying of RM‐bonded castables were also experimentally studied by Pandolfelli and co‐workers 6,13,30 . Zhao et al 29 .…”

“…found that Cr(VI) formation can be effectively suppressed in RM‐bonded Cr 2 O 3 ‐bearing castables compared with calcium aluminate cement (CAC)‐bonded samples. In these work, RM‐bonded castables with a q ‐value of 0.26 were prepared and studied 6,13,27,29,30,33 . Zou et al., 34 however, have figured out that properties of CAC‐bonded castables could be affected by the particle gradation.…”

“…6,[26][27][28] More recently, reactive MgO (RM) is considered as hydraulic binder to prepare castables with superior properties and performance. 6,13,27,29,30 This is because (1) the slag corrosion and infiltration resistance of castables could be improved due to the in-situ formed MgAl 2 O 4 spinel, 5 (2) and low energy consumption and CO 2 emission during RM preparation. 31,32 To evaluate the feasibility of RM-bonded castables in industrial application, numerous researches have been carried out.…”

“…31,32 To evaluate the feasibility of RM-bonded castables in industrial application, numerous researches have been carried out. 6,13,27,29,30 By modifying the hydration behavior of MgO using formic acid and or aluminum lactate, 25 crack-free RM-bonded castables were prepared. 27 The flow-ability and explosion resistance during drying of RM-bonded castables were also experimentally studied by Pandolfelli and co-workers.…”