PSI - Issue 70

Abhijeet Singh et al. / Procedia Structural Integrity 70 (2025) 611–618

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3. Results And Discussion

Table 1. Cement Testing with varying percentages of Marble Dust Samples Marble Dust Cement IST (minutes) FST (minutes) Consistency (%) Standard 0% 100% 32 480 28 Mix-1 4% 96% 38 491 29 Mix-2 8% 92% 40 500 30 Mix-3 12% 88% 43 512 32 Mix-4 16% 84% 45 530 34 Mix-5 20% 80% 50 543 36

Table 2. Experimental Work for Natural Coarse Aggregate, Fine Aggregate and Marble Dust

Crushing (%)

Bulk Density (kg/m 3 )

Abrasion (%)

Impact (%)

Samples

Specific Gravity

NCA NFA

2.60 2.65 2.73

1620 1600 1240

30%

22%

28%

- -

- -

- -

Marble Dust

Fig. 1. Particle size distribution curve of natural coarse aggregates (NCA) 0 20 40 60 80 100 40 mm 20 mm 16 mm 12.5 mm 10 mm 4.75 mm Pan Percentage Passing (%) Sieve Size (mm) Sieve Analysis of Natural Coarse Aggregates (NCA) Coarse Aggregate 0 20 40 60 80 100 10 mm 4.75 mm 2.36 mm 1.18 mm 600 µm 300 µm 150 µm Pan Percentage Passing (%) Sieve Size (mm) Sieve Analysis of Natural Fine Aggregates (NFA) and marble dust Fine Aggregate Marble Dust

Fig. 2. Particle size distribution curves of natural fine aggregates (NFA) and marble dust

The figure 1 and figure 2 are showing the particle size distribution curves of natural coarse aggregates (NCA), natural fine aggregates (NFA) and marble dust respectively.