Development and Performance Evaluation of Very High Early Strength Geopolymer for Rapid Road Repair

Table 1

Chemical compositions (wt%) and physical properties of cementitious materials used.

Chemical compositions	MK	PWA	OPA
SiO2	50.30	2.57	38.37
Al2O3	41.02	0.53	1.48
Fe2O3	1.05	0.56	3.01
CaO	0.33	41.19	13.84
TiO2	1.50	—	0.21
MgO	—	4.52	3.00
K2O	4.08	16.11	14.09
P2O5	—	3.06	4.15
SO3	—	5.54	1.42
Cl	—	0.82	—
MaO2	—	1.36	—
Loss on ignition (LOI)	1.72	23.74	20.43
Specific surface area (m^2/g) BET	13.61	8.71	13.06
𝑑10 (𝜇m)	1.352	2.860	4.321
𝑑50 (𝜇m)	6.308	25.128	19.305
𝑑90 (𝜇m)	88.803	123.450	100.109