BS EN 12189:1999

What is BS EN 12189 - Open time of concrete structures about?  

BS EN 12189 is applicable to products and systems for the protection and repair of concrete structures. 

BS EN 12189 describes a method for the measurement of the open time of structural bonding agents by use of bonded concrete prisms tested in flexure. 

Who is BS EN 12189 - Open time of concrete structures for?  

BS EN 12189 on open time of concrete structures is useful for: 

• Construction industries  
• Contractors  
• Builders  
• Testers of concrete structures  
• Maintenances and constructors of concrete structures  

Why should you use BS EN 12189 - Open time of concrete structures? 

The open time is defined as the period that elapses between the completion of mixing of the bonding agent and 

the longest time to the closing of the joint which results in a failure plane within the concrete. 

BS EN 12189 assists you with open time measured using the results from tensile bending tests performed on a series of concrete test prisms that have been bonded using the same mix of bonding agents but with the pairs of prisms being brought together at predetermined intervals after application of the bonding agent.