Techno Press
You logged in as Techno Press

Computers and Concrete
  Volume 19, Number 5, May 2017 , pages 555-566
DOI: https://doi.org/10.12989/cac.2017.19.5.555
 


Compressive strength and mixture proportions of self-compacting light weight concrete
Behnam Vakhshouri and Shami Nejadi

 
Abstract
    Recently some efforts have been performed to combine the advantages of light-weight and self-compacting concrete in one package called Light-Weight Self-Compacting Concrete (LWSCC). Accurate prediction of hardened properties from fresh state characteristics is vital in design of concrete structures. Considering the lack of references in mixture design of LWSCC, investigating the proper mixture components and their effects on mechanical properties of LWSCC can lead to a reliable basis for its application in construction industry. This study utilizes wide range of existing data of LWSCC mixtures to study the individual and combined effects of the components on the compressive strength. From sensitivity of compressive strength to the proportions and interaction of the components, two equations are proposed to estimate the LWSCC compressive strength. Predicted values of the equations are in good agreement with the experimental data. Application of lightweight aggregate to reduce the density of LWSCC may bring some mixing problems like segregation. Reaching a higher strength by lowered density is a challenging problem that is investigated as well. The results show that, the compressive strength can be improved by increasing the of mixture density of LWSCC, especially in the range of density under 2000 Kg/m3.
 
Key Words
    light-weight self-compacting concrete; mixture design; components; compressive strength; density
 
Address
Behnam Vakhshouri and Shami Nejadi: Faculty of Engineering and Information Technology, School of Civil and Environmental Engineering, University of Technology Sydney, Australia
 

Techno-Press: Publishers of international journals and conference proceedings.       Copyright © 2024 Techno Press
P.O. Box 33, Yuseong, Daejeon 305-600 Korea, Tel: +82-42-828-7996, Fax : +82-42-828-7997, Email: admin@techno-press.com