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International Journal of Concrete Structures and Materials

Table 7 Composition of concrete.

From: Evaluation on the Mechanical Performance of Low-Quality Recycled Aggregate Through Interface Enhancement Between Cement Matrix and Coarse Aggregate by Surface Modification Technology

Type

W/C (%)

Slump (mm)

Air (%)

Gmax (mm)

Unit weight (kg/m3)

Admixture (%)

W

C

S

G

L concrete

55

180 ± 25

4.5 ± 1.5

20

175

318

805

913

C × 0.5(a*)

M concrete

172

312

805

915

C × 0.5(a*)

  1. L concrete low-quality recycled coarse aggregate concrete, M concrete modified coarse aggregate concrete, a* air entraining agent.
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