Study on Engineering Performance of Green Porous Sponge Ecological Concrete

Table 2

Water retention of concrete.

Type	After drying/kg	After soaking in water/kg	Soaking-drying/kg	Water absorption per unit mass
Porous sponge ecological concrete	14.408	15.034	0.626	0.0434
Ordinary concrete	21.122	21.588	0.466	0.0221