1887

n IMIESA - Eliminating bottlenecks : cement & concrete

USD

 

Abstract

While achieving a dense, cohesive concrete mix with sufficient paste volume will enable the correct level of workability of the concrete, contractors must also pay attention to avoiding practices that will result in risky segregation during concrete pumping on construction sites. "Where material segregates and the water separates out of the mix - in other words, where water washes out of the paste - there is a strong possibility of blockages occurring in the pipeline," says Eddie Correia, executive vice-president, Chryso Southern Africa - a leading producer of super plasticisers. These water-reducing agents enable good aggregate coating by dispersing the cement grains, thereby minimising agglomeration of the mix and increasing the plasticity and, therefore, the workability of the concrete.

Loading

Article metrics loading...

/content/imiesa/41/7/EJC191496
2016-07-01
2016-12-08
This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error