PSI - Issue 70

Rupankar Chakraborti et al. / Procedia Structural Integrity 70 (2025) 279–286

283

Fig. 2 Three set of cubes prepared after Mix Design of M40 concete

4. Experimental Procedure To determine the effect on the strength properties of concrete with partially replaced GGBFS and Silica Fume with Ordinary Portland Cement 36 cubes has been prepared for experimental studies keeping all other properties constant. Design mix has been prepared for normal concrete and three other specimens were prepared with partially replacing cement with GGBFS (20%, 30% and 35%) and Silica Fume (5%, 10% and 15%). Water-cement ratio was investigated as 0.4.

Table 2. Mix proportions for Trial 1.

Quantity adopted for 1m 3 of concrete mix ( kg/m 3 )

Raw Ingredient

Cement

431.3

Silica Fume

0.0 0.0

GGBFS

Water

155.25 615.86

Fine aggregate Coarse aggregate Chemical admixture

1178.15 (CA1, CA2)

2.1563

Cement :

FA 1.4

:

CA

:

Water

1

:

:

2.7

:

0.4

Table 3. Mix proportions for Trial 2.

Raw Ingredient

Quantity adopted for 1m 3 of concrete mix ( kg/m 3 )

Cement

323.4 kg/m 3 21.6 kg/m 3 86.3 kg/m 3 155.25 kg/m 3 615.86 kg/m 3

Silica Fume

GGBFS

Water

Fine aggregate Coarse aggregate Chemical admixture

1168.15 kg/m 3 (CA1,CA2)

2.1563 kg/m 3

Cement

:

FA 1.9

: :

CA

:

Water

1

:

3.6

:

0.4