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International Journal of Concrete Structures and Materials

Table 2 Composition and tags of the investigated mortars.

From: Mix-design and Properties of Mortars from Alkali-activated Fly Ashes Containing High Amounts of Unburned Carbon Matter

Sample

Fly ash (wt.%)

NaOH solution (wt.%)

Sodium silicate solution (wt.%)

Water (wt.%)

Sand (wt.%)

Additive (wt.%)

Water/fly ash ratio (w/b)a

Liquid/fly ash ratio (L/b)b

M-FA(LCC)

23.7

1.8

8.9

1.7

64.0

–

0.32

0.52

M-FA(HCC)-1

23.1

1.8

8.7

4.3

62.2

–

0.43

0.64

M-FA(HCC)-2

23.4

5.3

5.3

2.8

63.2

–

0.39

0.57

M-FA(HCC)-S

23.1

1.8

8.7

3.7

62.4

0.2

0.41

0.62

M-FA(HCC)-G

23.4

1.8

8.8

2.8

63.1

0.2

0.37

0.58

  1. aWater/fly ash ratio = w/b. Water content is the water contained in the alkaline solutions in percentage over all the consituents + water.
  2. bLiquid/fly ash ratio = L/b. Liquid content is calculated considering the total content of NaOH + sodium silicate solution + water + additive.
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