A Review of the Engineering Properties of Metakaolin Based Concrete: Towards Combatting Chloride Attack in Coastal/Marine Structures

Table 3

Chemical composition of MK samples used in past research studies.

Research study	Oxides (%)
	CaO	SiO2	Al2O3	Fe2O3	MgO	K2O	P2O5	SO3	Na2O	TiO2	LOI
[16]	0.03	57.37	38.63	0.77	0.07	0.49	0.61	0.15	0.39	0.40	1.04
[18]	0.09	51.6	41.3	4.64	0.16	0.62	—	—	0.01	0.83	—
[19]	0.78	52.68	36.34	2.14	0.16	0.62	—	—	0.26	—	0.98
[20]	0.05	51.2	45.3	0.6	—	0.16	—	—	0.21	—	0.51
[21]	0.07	52.1	41	4.32	0.19	0.63	—	—	0.26	0.81	0.6
[22]	2.4	56	37	2.4	0.3	1	—	—	1	0.2	—
[23]	—	51.5	44.7	0.4	—	—	—	—	—	2.1	—
[23]	—	52.5	44.5	0.9	—	—	—	—	—	1.7	—

MK235 (coarser) and MK349 (finer).