TRANSACTIONS OF THE JAPANESE SOCIETY OF IRRIGATION, DRAINAGE AND RECLAMATION ENGINEERING, Volume 180, Page 49-57 (1995)

Simple Systematization of a Curing Method for Preventing Temperature Cracking on Box Culvert Wall

Hidehiko OGATA*, Masato KUNITAKE**, Fumiyoshi KONDO**, Takao NAKAZAWA*** and Hiroshi YAMASHITA****

* The United Graduate School of Agricultural Sciences, Kagoshima University and
Research Fellow of the Japan Society for the Promotion of Science
** Faculty of Agriculture, Miyazaki University
*** Faculty of Engineering, Miyazaki University
**** Department of Agriculture, Miyazaki Prefectur

Abstract

　A curing method for warm keeping is effective as a method for preventing temperature cracking that occurs on concrete box culvert wall. Any temperature cracking did not occur also on the concrete box culvert, newly constructed this time, using a curing method for warm keeping. Based on this fact, fundamental studies were carried out about curing method for warm keeping by the results of temperature measurement including a case of the past and the results of temperature analysis using 3-D finite element method of the inside of concrete wall. As a result, critical gradient of descending temperature and environmental temperature rise of inner box culvert need to prevent of the temperature cracking were obtained. Finally, summarizing these fundamental studies, we carried out simple systematization of a curing method for warm keeping.