Moreover, HEC increases workability and water retention in cement and mortar mixes, and that is important for reaching the needed mechanical features and toughness.S c p = W e i g h t   o f   t h e   d r u g   i n   m i c e l l a r   s o l u t i o n   ( m g ) W e i g h t   o file   p o l y m e r   ( g )This do the job is really a tribute