Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/13396
Title: Effects of mix-design variables on the workability, rheology and stability of self-consolidating concrete
Authors: Alami, Mohammad Musa
Erdem, T.K.
Keywords: mix-design
rheology
Self-consolidating concrete
stability
workability
Issue Date: 2022
Publisher: Pontificia Universidad Catolica de Chile, Escuela de Construccion Civil
Abstract: This study investigates the effects of basic mix design variables such as water/cement ratio (w/c), slump flow, coarse-to-total aggregate ratio (CA/TA), and maximum aggregate size (Dmax) on the main characteristics of self-consoli-dating concrete. The w/c of the mixtures was either 0.42 or 0.50. The CA/TA ranged between 0.45 and 0.53. Slump flow was adjusted to 550, 650 or 720 ±20 mm by varying the superplasticizer content. Dmax was varied as 10, 15 and 20 mm. V-funnel, L-box, rheometer, sieve segregation tests and a new test method, recently developed by the authors, for dynamic segregation resistance were performed. The effect of each variable on the test results were effectively summarized in a table. Increasing the w/c, CA/TA and Dmax decreased the superplasticizer demand and increased the flowability. When the slump flow, w/c and CA/TA were higher, viscosity was found to be lower. Higher values of CA/TA and Dmax were found to reduce the passing ability. Increasing the slump flow (or superplasticizer content), CA/TA and Dmax disturbed the sta-bility. Generally, the effects of w/c and slump flow on the SCC characteristics were more pronounced when compared to those of CA/TA and Dmax. Good correlations were obtained between several test results © Copyright (c) 2022 Alami, M. and Erdem, T. This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivatives 4.0 International License
URI: https://doi.org/10.7764/RDLC.21.3.703
https://hdl.handle.net/11147/13396
ISSN: 0717-7925
Appears in Collections:Civil Engineering / İnşaat Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

Files in This Item:
File SizeFormat 
13396.pdf759.03 kBAdobe PDFView/Open
Show full item record



CORE Recommender

Page view(s)

36
checked on Feb 19, 2024

Download(s)

8
checked on Feb 19, 2024

Google ScholarTM

Check




Altmetric


Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.