RILEM Report on Self Compacting Concrete (Part 2)-Final report of RILEM Technical Committee 188-CSC Casting of Self Compacting Concrete (PDF)

Final report of RILEM Technical Committee 188-CSC Casting of Self Compacting Concrete (PDF)

Pdf Summary

The document is a final report by the RILEM Technical Committee 188-CSC, focusing on the "Casting of Self-Compacting Concrete" (SCC). Published by RILEM Publications S.A.R.L. in 2006, it highlights the breakthroughs and techniques involved in the production and application of SCC, an innovative type of concrete that can flow and fill formwork under its own weight without mechanical compaction, leading to significant improvements in the construction process.<br /><br />The report outlines various aspects of SCC, including its production process, mix design, mixing and transportation methods, and quality assurance measures. Key components in SCC consist of cement, fillers, and admixtures, which contribute to its unique properties such as high flowability and ease of placement.<br /><br />Mechanization in the casting process has facilitated increased productivity, lower costs, and better working environments. The document stresses planning when using SCC, covering formwork design, casting techniques, finishing, and curing processes. Proper planning considers the mix's rheological properties, ensuring quality assurance and efficiency in the casting sequence.<br /><br />Challenges associated with SCC, like the risk of high formwork pressure and the potential appearance of surface defects (e.g., blowholes), are discussed. The report recommends careful consideration of factors such as the type of formwork, casting rate, temperature, and the effect of admixtures to mitigate these issues.<br /><br />The document concludes by emphasizing the need for further research and development to refine SCC technology and its application, tailored to local materials and conditions. It argues that the technology supports the industrialization of concrete construction, enhancing quality and efficiency in both precast and on-site applications, thereby having significant economic and workplace benefits. Moreover, it highlights the requirement for testing and understanding the hardened properties of SCC to maximize its advantages in construction.

Keywords

Self-Compacting Concrete

SCC production

mix design

quality assurance

formwork design

rheological properties

surface defects

admixtures

construction efficiency

industrialization