Posted by Civil Engineer On November - 25 - 2009
1. How do water reducers work?
Water reducers (WR) have detergent like properties. They are called “surface active agents” and carry a negative charge (-). In cement pastes, there is tendency for cement particles to form large flocs (agglomerates). The water reducer will allow cement particle not to collect together, more cement surface area is available for reaction with water. Read the rest of this entry »
Posted by Civil Engineer On November - 21 - 2009
Prior to develop the advantages of using silica fume to improve the concrete sulfate resistance, it may be interesting to highlight the basics form of sulfate attacks and the properties of sulfate resisting cement. Read the rest of this entry »
Posted by Civil Engineer On November - 19 - 2009
Before making a mix design for shotcrete or sprayed concrete, it is needed to get sufficient information from the clients.
Adequate support information will be resulted in technically and economically effect for the work. A proper mix design assure a successful trial and thus, successful application on site. Read the rest of this entry »
