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EVALUATION OF USING THE CRUSHED GRAVEL OF KERBALA QUARRIES FOR PRODUCTION OF SELF-COMPACTING CONCRETE MIXES | ||
| Iraqi journal of mechanical and material engineering | ||
| Article 1, Volume 13, Issue 3, 2013, Pages 654-667 | ||
| Authors | ||
| Dhiaa Neama Jabbar; Mohammed Karem Abd; Zuhair Dhaher Habeeb | ||
| Abstract | ||
| This research aims to evaluate of using the crushed gravel of Kerbala quarries in product self compacting concrete (SCC) , American method (ACI) and (Common mix design method for SCC) are used to design the concrete mixes, the mix proportion of these mixes is (1:1.8:2), and water cement ratio is (0.5) the work involves four mixes, the first without any admixture ,and in the another mixes use limestone powder of (100Kg /m3) and superplasticizer (KUT Plast RNA) by (2, 4 , 6 ) % of cement content respectively. Slump test, Slump flow test, L-Box test and V-funnel test are using to determine the workability of all mixes , the values of slump and slump flow are (80, 230, 420, 760) mm, the blocking ratio (H2/H1) value is (0.83) and the flow time through the V-funnel is (11) seconds respectively, the mechanical properties studied in this work are compressive strength by using cubes of (100*100*100) mm, with average value of nine spacements are (19.4, 23, 26.5, 30.2), (27.6, 38.2, 41, 56.7) and (32.3, 45, 57.6, 68) N/mm2 of (7, 28, 90) day ages respectively , and splitting tensile strength by using cylinders of (150*300) mm, with average values of six spacements are (4, 4.5, 5.9, 7.4), (4.5, 5.2, 6.4, 8.3) and (4.7, 5.5, 6.7, 8.4) N/mm2 of (28, 56, 90) days ages respectively . The results indicate that the fourth concrete mix with using (6%) of superplasticizer gives a self compacting concrete | ||
| Keywords | ||
| self compacting concrete; crushed gravel; superplasticizer | ||
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