Effect of gypsum content and other factors on shrinkage of -concrete prisms / by Gerald Pickett.
Pickett, Gerald.
Effect of gypsum content and other factors on shrinkage of -concrete prisms / by Gerald Pickett. - Chicago : Portland Cement Association, Research Laboratories - [28] p. - Bulletin 21 / Portland Cement Association .
Effect of gypsum content and other factors on shrinkage of -concrete prisms / by Gerald Pickett. - Chicago : Portland Cement Association, Research Laboratories - [28] p. - Bulletin 21 / Portland Cement Association .