Recent Progress in Chemically Bonded Phosphate Ceramics

Table 2

Water permeability and mechanical properties of CBPC with wollastonite and other fillers [29].

Composition (wt.%)			Strengths (psi)		Fracture toughness (MPa·m^1/2)	Water absorption (wt.%)
Binder	Wollastonite	Other	Compressive	Flexural
40	60	Nil	8,426	1,474	0.66	2
50	50	Nil	7,755	1,236	0.63	2
30	30	Sand 40	6,264	1,255	0.63	3
100	Nil	Nil	3,500	1,100	N/A	15
40	Nil	Ash 60	11,507	1,474	0.19	1.78
Typical Portland cement concrete			8,000	940	N/A	10–20