Shrinkage Reducing Admixtures – Their Science and Role in Education by Prof. Jason Weiss скачать в хорошем качестве

Shrinkage Reducing Admixtures – Their Science and Role in Education by Prof. Jason Weiss

Speaker: Professor Jason Weiss, Edwards Distinguished Chair of Engineering, Oregon State University Host: Prof. Karen Scrivener, Ecole Polytechnique Fédérale de Lausanne, Switzerland Shrinkage-reducing admixtures (SRAs) emerged on the scene in the 1980’s. While these materials have been introduced to reduce the risk of restrained shrinkage cracking in concrete; they have several additional benefits. This presentation will review properties of shrinkage reducing admixtures in an effort to describe how they reduce shrinkage. Discussions will include surface tension, viscosity and contact angle. The presentation will highlight their influence on shrinkage, shrinkage cracking, moisture diffusion, plastic shrinkage, and transport properties. ABOUT RILEM: The mission of RILEM is to advance scientific knowledge related to construction materials, systems and structures and to encourage transfer and application of this knowledge world-wide. This mission is achieved through collaboration of leading experts in construction practice and science including academics, researchers, testing laboratories and authorities.