Properties of fresh and hardened concrete

SCC with crushed aggregate

 In self-compacting concretes (SCC), round particles are frequently used as coarse aggregate. These are expected to be of advantage, in particular as regards an improved work-ability. The tests presented in this article demonstrate that the manufacture of SCC with a high content of crushed aggregate and good workability is possible. In addition it was shown that the use of crushed aggregate, instead of gravel, can improve the strength and deformation properties of the concrete.


The fresh concrete properties of self-compacting concretes (SCC) are considerably influenced by the choice of coarse aggregate. The principal parameters are in this context the quantitative content of the concrete as well as the particle geometry and roughness. But hardened concrete properties result from this as well and/or are determined via these parameters. Knowledge of these interrelated aspects thus offers the possibility to directly influence the properties of fresh and hardened concrete through the choice of coarse aggregate.  

The following article presents, firstly, possibilities for...

Related articles:

Issue 08/2009 Powder-type SCC with crushed mineral aggregates

Design concept and flow properties of SCC – Part 1

The first part of this two-part article presents an approach to determining the volume of the cement paste required to produce SCC and discusses this approach with respect to the granulometric...

more
Issue 09/2009 Powder-type SCC with crushed mineral aggregates

Design concept and flow properties of SCC – Part 2

Powder-type SCC mix design To produce the SCCs under study, the above-described aggregate mixes consisting of gravel and fluvial sand (K-F), quartz porphyry chippings and fluvial sand (Q-F), shell...

more
Issue 03/2015

Numerical modelling of SCC flow through ­reinforced sections­

In the last decades, numerical simulations of fresh concrete flow have gained increasing importance in the concrete industry [1, 2]. They showed a potential to become an essential tool for better...

more
Issue 04/2017

Brazilian waste – an alternative in the ­production of self-compacting concrete (SCC)

1. Introduction Over the last few years, Brazil has been standing out globally in the production and export of marble and granite for ornamental use. In 2015, the country ranked among the top three in...

more
Issue 08/2009 A number of advantages

SCC with lightweight aggregates

Self-compacting concrete can be processed purely under the impact of gravity and without any vibration, even in densely reinforced false work or complex geometries.  For this purpose, the concrete...

more