Study some mechanical properties of self-compacting concrete with nano silica under severe saline environment conditions

Ghalib Habeeb, Zahraa Hashim, T.S. Al-Attar, M.A. Al-Neami, W.S. AbdulSahib
2018 MATEC Web of Conferences  
The main aim of this research is to evaluate the performance of Nano silica self-compacting concrete which is subjected to severe saline conditions that contain sulfates and chlorides at concentrations similar to those existing in the soils and ground water of the middle and southern parts of Iraq. For this purpose, ordinary and sulfate resistant Portland cement without and with 3% Nano silica addition by weight of cementitious materials were used. Splitting tensile strength, flexural strength,
more » ... flexural strength, static modulus of elasticity and ultrasonic pulse velocity were investigated for all exposure conditions and all types of mixes of selfcompacting concrete at ages of 28, 60, 90, 120 and 180 days. Test results revealed that the inclusion of Nano Silica in concrete mixes improved clearly the mechanical properties of self-compacting concrete compared with reference concrete. Materials Cement Tasluja-Bazian Ordinary Portland cement (OPC) (ASTMC150 Type I) and Tasluja-Bazian sulfate resistance Portland cement (SRPC) (ASTMC150Type V) MATEC Web of Conferences 162, 02015 (2018)
doi:10.1051/matecconf/201816202015 fatcat:re2n7ijwb5b3jghl2k4lfe2j6u