Seite - 939 - in Book of Full Papers - Symposium Hydro Engineering

Compressive strength test, workability test by VB time, water absorption test and compacted concrete density tests were conducted at the ages of 7, 14, 28, 42 and 90 days. 4. EXPERIMENTAL 4.1. VB TIME A modified Vebe apparatus was used to determine the workability of mix designs. The results showed on table 8. Table 8. Workability Results Specimens No. VB Time (sec) Specific gravity of fresh concrete (gr/Cm3) RCC-1 18 2.298 RCC-2 18 2.336 RCC-3 105 2.191 RCC-4 15 2.395 RCC-5 16 2.326 RCC-6 38 2.361 RCC-7 40 2.205 RCC-8 36 2.251 RCC-9 36 2.229 4.2. 24-HOUR WATER ABSORPTION 24-hour Water absorption test on concrete specimens was performed according to ASTM C642 standard. The results showed in figure 4. 939