Abstract
The distance between particles (λ) plays a key role in the flowability of fresh cement pastes. λ given in available literatures is an average value and independent with the particle size. Actually, coarse particles in cement paste need a larger λ to achieve same yield stress compared with fine particles. In the present study, relationship between yield stress and λ for single-fraction cement pastes was established by introducing an exponential-type function. Then the function was theoretically deduced to evaluate λ in binary-fraction cement pastes. For cement pastes with yield stress of 30Pa, distance between coarse particle (48.51μm) and fine particle (6.63μm) was 5.00μm, while distance between mid-sized particle (20.27μm) and fine particle (6.63μm) was only 2.57μm. Finally, the reliability of λ in binary-fraction cement paste was experimentally validated. This method can be applied in multi-fraction cement pastes, and λ in consideration of particle size will give a deeper insight in the flowability and microstructural development of cement pastes.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
