Based on compressive stress – compressive strain curves of Reactive Powder
Concrete (RPC) which have been established recently in a Ph.D thesis(1), an
equivalent bi-linear compressive stress block for RPC sections under pure
bending moment is proposed and used to derive an equation for calculating the
nominal ultimate bending moment capacity (Mn) of rectangular singly reinforced
RPC sections. The accuracy of the derived equation of Mn is examined by
comparison with the results of existing experimental tests.