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PRODUCTION OF SELF COMPACTING CONCRETE FOR CIVIL ENGINEERING STRUCTURES | ||
| Al-Qadisiyah Journal for Engineering Sciences | ||
| Article 1, Volume 2, Issue 4, 2009, Pages 740-751 PDF (0 K) | ||
| Authors | ||
| alyaa m.mohammed; nihad t.khshain; Dr.riyad a. abass | ||
| Abstract | ||
| During the last decades new cementations materials were available, that led to new types of concrete. This represent a sort of technical revolution with respect to the traditional concrete. In this paper atraditional concrete (slump 170mm & little bleeding) , and two self compacting concrete( slump flow 700mm &neglectful bleeding) mixes were manufactured, ordinary Portland cement content(400kg/m3) and w/c ratio 0.45 used in manufacturing concretes, in order to obtain the same 28 day compressive strength .SCC were made with different types of mineral additions as fillers ,in this paper ground limestone and very fine sand used. The concrete specimens were wet cured at room temperature till the test age. Compressive strength of SCC were higher than that of the traditional concrete ,this can be related with a change in the microstructure of the cement matrix caused by the small particles of the limestone and very fine sand, which increase the density of cement paste and reduce the voids in it. | ||
| Keywords | ||
| Concrete; self compacting concrete; new concrete materials; limestone; super; Plasticizer; fine sand | ||
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