Influence of MgO and Hybrid Fiber on the Bonding Strength between Reactive Powder Concrete and Old Concrete

Table 4

Mix proportion of RPC/kg/m³.

Code	Cement	Silica fume	Quartz flour	Quartz sand	Water	SF	PPF	MgO	Water reducer
Control	800	200	320	880	200	0	0	0	30
S05	800	200	320	880	200	39	0	0	30
S10	800	200	320	880	200	78	0	0	30
S15	800	200	320	880	200	117	0	0	30
M5S05	800	200	320	880	200	39	0	40	31.2
M5S10	800	200	320	880	200	78	0	40	31.2
M5S15	800	200	320	880	200	117	0	40	31.2
M7S05	800	200	320	880	200	39	0	56	31.7
M7S10	800	200	320	880	200	78	0	56	31.7
M7S15	800	200	320	880	200	117	0	56	31.7
M9S05	800	200	320	880	200	39	0	72	32.2
M9S10	800	200	320	880	200	78	0	72	32.2
M9S15	800	200	320	880	200	117	0	72	32.2
M5S10P1	800	200	320	880	200	78	0.91	40	31.2
M5S10P2	800	200	320	880	200	78	1.82	40	31.2
M5S10P3	800	200	320	880	200	78	2.73	40	31.2
M7S10P1	800	200	320	880	200	78	0.91	56	31.7
M7S10P2	800	200	320	880	200	78	1.82	56	31.7
M7S10P3	800	200	320	880	200	78	2.73	56	31.7
M9S10P1	800	200	320	880	200	78	0.91	72	32.2
M9S10P2	800	200	320	880	200	78	1.82	72	32.2
M9S10P3	800	200	320	880	200	78	2.73	72	32.2