@article{oai:iot.repo.nii.ac.jp:00000080, author = {土田, 祥彬 and 澤本, 武博 and 飛内, 圭之 and 地頭薗, 博 and Yoshiaki, TSUCHIDA and Takehiro, SAWAMOTO and Keishi, TOBINAI and Hiroshi, JITOSONO}, issue = {3}, journal = {ものつくり大学紀要, The Bulletin of Institute of Technologists}, month = {}, note = {In general, concrete is repaired with injecting repair materials when the concrete crack is 0.2mm or more. The flexural strength of concrete which includes the concrete crack repaired with injection has been tested. However, the axial strength has been hardly tested. In this study, the compressive and the tensile strength of concrete which repaired cracks by injecting epoxy resins and polymer-cement paste were investigated. As a result, in case of injecting epoxy resins, the compressive strength of concrete repaired crack whose width was from 0.2mm to 1.0mm was higher than non-defective concrete up to normal strength 40. Furthermore, the tensile strength was more effective than compressive strength. At nominal strength 60, the compressive and tensile strength of concrete which repaired cracks were the same as that of the non-defective concrete. In case of injecting polymer-cement paste, the compressive strength and tensile strength of concrete which repaired cracks were lower than non-defective concrete exceed in nominal strength 40., 本研究では,円柱供試体を割裂した2 つの試験片を結束して任意の模擬ひび割れを作製し,そのひび割れにエポキシ樹脂またはポリマーセメント系材料を自動式低圧注入工法で注入し,補修した.そして,母材コンクリートの強度レベルおよび注入材の種類がひび割れ補修後のコンクリートの圧縮強度,静弾性係数および引張強度に及ぼす影響について検討を行った.}, pages = {56--61}, title = {ひび割れを補修したコンクリートの強度特性に関する研究}, year = {2012}, yomi = {ツチダ, ヨシアキ and サワモト, タケヒロ and トビタニ, ケイシ and ジトウソノ, ヒロシ} }