Influence of Nano-SiO2 on the Strength of High Performance Concrete

Bao Min Wang

doi:10.4028/www.scientific.net/MSF.686.432

Paper Titles

Experimental Study on Mechanical Properties of X-Cor Sandwich
p.411

Fabrication and Properties of Cf/SiC Composites Derived from Polysiloxane Precursor
p.419

Fabrication of Alumina Composite Ceramics with High Addition of Carbon Nanotubes
p.423

Model and Maximal Pull-Out Force of Helicoidal Fiber Structure in the Underpinnings of Tumblebug Cuticle
p.427

Influence of Nano-SiO₂ on the Strength of High Performance Concrete
p.432

Preparation of CNTs/PANi Core/Shell-Structured Nanowires and Improvement of Sensitivity of Chemical Sensors
p.438

Preparation of Ultrafine White Cement and its Hydration
p.448

Study on Foaming Behavior of Microcellular PP/Inorganic Powder Composites
p.454

Synthesis of (3-Mercaptopropyl)Trimethoxysilane-Modified ZMS and Study of the Enhancement of Ammonia-Nitrogen Removal from Water
p.461

HomeMaterials Science ForumMaterials Science Forum Vol. 686Influence of Nano-SiO2 on the Strength of High...

Influence of Nano-SiO₂ on the Strength of High Performance Concrete

Abstract:

The influence of Nano-SiO₂ (NS) on the strength of high-performance concrete (W/B=0.24, W/B=0.29, W/B=0.34) has been studied in this paper. The results show that compressive strengths of concrete in both the early and later stage can be improved by adding Nano-SiO₂ content. And the influence on the early compressive strength is greater than that on the later compressive strength. According to the results, 3%-5% Nano-SiO₂can be used as the proper mixing ratio. X-ray diffraction, SEM (scanning electron microscope) and mercury injection experiment were used to analyze the action principle of Nano-SiO₂ microscopically, the microscopic characteristics of concrete can be significantly improved through interfacial and filling effect effects so that the performance of concrete can be accordingly improved.