Strength Development of High-Strength Ductile Concrete Incorporating Metakaolin and PVA Fibers

Table 1

Chemical and physical properties of OPC and mineral admixtures (%) [29].

	OPC	FA	GGBS	SF	MK	RHA
Specific gravity	3.05	2.2–2.8	2.79	2.6–3.8	2.5	2.11
SiO2, %	20.44	35–60	34.4	91.4	53.87	88.32
Al2O3, %	2.84	10–30	9.0	0.09	38.57	0.46
Fe2O3, %	4.64	4–20	2.58	0.04	1.4	0.67
CaO, %	67.73	1–35	44.8	0.93	0.04	0.67
MgO, %	1.43	1.98	4.43	0.78	0.96	0.44
SO3, %	2.20	0.35	2.26	0.01	—	—
Na2O, %	0.02	0.48	0.62	0.39	0.04	0.12
K2O, %	0.26	0.4	0.5	2.41	2.68	2.91
MnO, %	0.16	—	—	0.05	0.01	—
TiO2, %	0.17	—	—	0.0	0.95	—
Particle size, μm	10–40	≤45	—	0.1	0.5–20	11.5–31.3
Specific surface (m^2/g)	1.75	5–9	0.4–0.599	16.455	12.174	30.4–27.4

FA: fly ash, GGBS: ground granulated blast furnace slag, SF: silica fume, RHA: rice husk ash, MK: metakaolin.