Study on Material Properties of Magnesium Oxide Carbonized Prestressed Pipe Piles

Table 5

Compressive strength loss rate after freeze-thaw.

Numbering	Compressive strength before freezing and thawing (MPa)	Compressive strength after freezing and thawing (MPa)	Compressive strength loss rate (%)
D1	24.5	22.1	9.80
D2	24.0	22.3	7.08
D3	26.5	23.2	12.45
D4	24.2	22.4	7.43
D5	25.5	19.4	23.92
Arithmetic mean			12.14