21 May 2012 Recycled Concrete and Other Construction Materials as Aggregate in Portland Cement Concrete by Admin | posted in: Technical Article | 0 แนวคิดพัฒนาประเทศไทยจาก ATPAC: Recycled Concrete and Other Construction Materials as Aggregate in Portland Cement Concrete is published on the following OSTC site: http://www.ostc.thaiembdc.org/test2012/stnews_Feb12_10