Crack Calculation of Beams from Self-Compacted Concrete

( Vol-4,Issue-5,May 2017 ) OPEN ACCESS

Hajdar E. Sadiku, Esat Gashi, Misin Misini


Conventional concrete, compression, cracks, modulus of elasticity, self-compacting concrete.


The latest developments of construction of high rise buildings like skyscrapers and different towers indicate that building such constructions with conventional concrete of low consistency is impossible due to the hard concreting process, mounting/demounting of scaffolding and the duration of concrete curing. Lately the most widely used material for construction of special buildings is self-compacting concrete because of the ability to fill entire section of formworks without compaction and vibration and better homogeneity between concrete and reinforcement. With massive usage of Self Compacted Concrete (SCC) in special buildings, series of researches are conducted all over the world analyzing cracks, mechanical characteristics and deformations of SCC. These researches shows that calculation of concrete elements with normal concrete do not give adequate results according to EC2 because of the concrete class consistency and amount of reinforcement in the cross section. The SCC as raw material provides better results in term of concrete consistency gives better cross section homogeneity and it is vibration free. However SCC concrete cracks, deformations, creep, deflections are different than normal concrete and as such must be calculated and analyzed before application. In this paperwork we have presented calculation of cracks on long term process of SCC beam element after period of t=400 days from concreting and comparison of results with the theoretical ones in line with Eurocode 2 (EC2) requirements.

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