IMPACT OF ZETA POTENTIAL OF POLYCRYSTALLINE SILICON POWDER IN THE CEMENT-SUPERPLASTICIZERS SYSTEM

Author(s): Wen Yong, Li Mei, Zhang Guangtai, Zhou Xiaomei
Paper category: Proceeding
Book title: Design, Performance and Use of Self-Consolidating Concrete
Editor(s): Caijun Shi, Zhihua Ou and Kamal Henri Khayat
Print-ISBN: 978-2-35158-143-8
e-ISBN: 978-2-35158-144-5
Publisher: RILEM Publications SARL
Publication year: 2014
Pages: 181 - 187
Total Pages : 7
Language : English

Abstract: Unpurified silicon powder is widely used in photovoltaic industry as the production of polycrystalline silicon powders’ raw materials. Considering to the downturn of market demand and excess capacity, unpurified silicon powder could applies to the construction industry. In the present study, zeta potential was used to evaluation the interaction between two types of superplasticizers (FDN, PCE) and cementitious materials to understand the effect of unpurified silicon to fresh concrete. The results show that cement-superplasticizers compatibility was varied by the chemical (surface charge) characteristics of the unpurified silicon powders studied. The pastes with the FDN based superplasticizers act better dispersion when compare with the PCE based.

Online publication: 2017
Publication type: full_text
Public price (Euros): 0.00