Mechanical Properties and Enhancement Mechanism of Oil-Well Cement Stone Reinforced with Carbon Fiber Surfaces Treated by Concentrated Nitric Acid and Sodium Hypochlorite

Table 6

Comparison of mechanical strength between carbon fiber-reinforced cement stone and pure cement stone.

CF type added	Content of CF (%)	Compressive strength increase (%)	Tensile strength increase (%)
P0	0.2%	8.4%	40.9%
P1	0.2%	12.0%	68.2%
P2	0.2%	14.7%	72.7%