This experimental study is the fundamental report to propose the use of waste Pottery (WP) as cement admixture using PHC pile. This study performed WP reaction test to examine the possibility of the use. This study, for the recycling of WP, is to analyze strength of stream cured products using WP and Phosphogypsum (PG). The result of this study are following. We found that WP is very effective mineral admixture high strength PHC pile having over 80MPa in compressive strength. Also, enhancement of strength by WP are responsible to dash of reaction.