Bond Stress between Steel-Reinforced Bars and Fly Ash-Based Geopolymer Concrete

Table 2

Mix proportions of concrete (kg/m³).

Ingredients	GPC	OPC
14 mm aggregate	500	242
10 mm aggregate	310	353
7 mm aggregate	280	349
Fine aggregate	630	814
Class F fly ash	420	—
Cement	—	357
12 mol/L NaOH	60	—
Na2SiO3	150	—
Water	31	225
MWR	4	—
VM	4	—
Aggregate V%/m^3	65%	66%
Compressive strength at bond test	35.4 MPa	36.8 MPa