22, 2011 /PRNewswire-USNewswire/ -- As the clock counts down to the start of the National Brain Game Challenge on September 25, legendary crossword constructor.
For the past 50 years, polymethylmethacrylate (PMMA) bone cements have been widely used. as the anchoring/grouting agent in total joint replacements of the hip, knee, ankle, elbow, and. shoulder. Good quality cement is essential for long-term implant survival and the role of the.
Hard-Cemâ¢ is a concrete hardener developed for ready-mix and pre-cast concrete applications. Hard-Cemâ¢ is added to the concrete mix during the batching operation. Hard-Cemâ¢ is the only hardener of its kind that can be utilized in air-entrained concrete. Hard-Cemâ¢ overcomes the deficiencies of surface applied hardeners which are labor intensive, problematic for quality control and not suitable for air-entrained concrete applications.