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International Journal of Concrete Structures and Materials

Table 4 Details of mixture proportions for mortar specimens

From: Effectiveness of Biological Mortars with Bacterial Glycocalyx on Service Life of Concrete Structures Exposed to Salt Attack

Specimens

Bacteria strain

RE (%)

W/B

S/B

Unit weight (kg/m3)

Water

Binder

EV

Silica sand

OPC

EVA polymer

C

–

0

0.35

2.0

262

675

75

–

1501

BL-10

Bacillus licheniformis

10

248

638

70

47

921

BL-20

20

233

600

66

44

867

BL-30

30

218

562

62

42

812

  1. RE = ratio of expanded vermiculite immobilizing bacteria and media as a replacement of silica sand by volume, W/B = water-to-binder ratio by weight, and S/C = silica sand-to-binder ratio by weight
  2. OPC, EVA, and EV refer to ordinary Portland cement, ethylene vinyl acetate, and expanded vermiculite, respectively
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