Effect of Mixture Parameters on the Shear Behavior of Cement Paste

Author(s): Qianqian Zhang, Jianzhong Liu, Jiaping Liu, Wenqiang Zuo, Fangyu Han
Paper category: Conference
Book Title: 8th International RILEM Symposium on Self-Compacting Concrete - SCC 2016
Editor: Kamal H. Khayat
ISBN: 978-2-35158-156-8
e-ISBN: 978-2-35158-157-5
Publisher: RILEM Publications SARL
Publication year: 2016
Pages: 455-463
Total Pages: 9
Language: English

Abstract: Understanding of the shear behavior of cement paste is expected to help provide a scientific guide for concrete pumping. In this paper, Effect of mixture parameters such as water-binder ratio, superplasticizer dosage and silica fume on the shear behavior of cement paste was investigated. The results show that all the pastes without SP exhibited a shear-thinning behavior and decreasing the w/b could weaken the shear- thinning behavior. The shear-thickening behavior of pastes with the same water-binder ratio was prone to increase with the increasing SP dosage. However, for pastes with the same SP dosage, shear-thickening response increased with the increase of w/b. In addition, shear-thickening response was lowered and even eliminated with the increase of SF content.

Online publication: 2016
Publication Type: full_text
Public price (Euros): 0.00