Table 8 Standard deviation and coeffiecient of variation of split tensile strength results (MPa).

From: A step towards sustainable glass fiber reinforced concrete utilizing silica fume and waste coconut shell aggregate

Mix ID

7 days

28 days

Standard deviation

Coefficient of variation

Standard deviation

Coefficient of variation

Control

0.152753

5.951397

0.251661

6.926454

Mix 1

0.208167

7.806247

0.264575

6.783978

Mix 2

0.288675

9.954315

0.458258

11.08688

Mix 3

0.4

12.90323

0.360555

8.132822

Mix 4

0.282843

11.31371

0.212132

6.239177

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