/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: jitupatel7106670 https://cdn.slidesharecdn.com/profile-photo-jitupatel7106670-48x48.jpg?cb=1606630338 various. research in nanotechnology in concrete.. like ...self healing concrete.light weight concrete. nd foam concrete