RC建築工事におけるかぶり厚さ確保の信頼性向上を目指した施工管理方法の検討

摘要

本研究では，実際の工事においてコンクリート打設前および打設後のかぶり厚さ調査を行い，その結果について考察を加えることでかぶり厚さ確保に関する信頼性向上を目指した施工管理方法について検討し，以下の結論を得た。%This study aimed at developing quality controlling technology for securing concrete cover thickness in costruction process. Toward this goal, field investigation for cover thickness measuring was conducted and obtained data were subjected to statistical analysis. Field study results showed smaller faihure probability against required cover thickness is smaller than in literature. This appears partially due to high ccuracy cover thickness measuring scheme adopting nondestructive electromagnetic testing apparatus, where data correction with steel arraignments on site, Furthermore, cover thickness data This phenomenon can lead to proposing effective quality controlling action such that cover thickness is enlarged than required cover thickness before concrete placing to secure required cover thickness with high reliability.