An engineering study on the mechanical properties of self-compacting concrete containing a hybrid of clay nanoparticles mixed with nano silica and silica

Mahdi Aminoleslami¹

1) Master of Engineering in environmental engineering, The University of New South Wales (UNSW), Department of Civil and Environmental Engineering, Sydney, Australia,

Publication : 3rd International Congress On Engineering, Technology and Innovation(eticong.com/3rd)
Abstract :
Clay nanoparticles mixed with nano and micro silica as an effective nano hybrid was utilized to improve the mechanical properties of self-compacting concrete. To this, the ordinary Portland cement, fine and coarse aggrigates, and water mixed with 0%, 0.5%, 1%, 1.5%, …, 6% of prepared hybrids by the weight of cement. After special tests, which made the SCC acceptable, 3 cube samples (150*150*150mm) were made for each dosage of nano hybrid , and tested after 7, 28, and 90 days. The results showed that the compressive strength and tensile strength of SCC, improved 21.57%, and 15.67%, respectively for the dosage of 3.5%, and 2% of hybrid. The rate of water absorption also decreased in each case of increased strength, so the prepared hybrid at the special dosage could be utilize to improve the SCC strength.
Keywords : Self-compacting concrete Clay Silica Compressive strength Tensile strength