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Effect of base surface roughness, cutting depth and coating thickness on adhesion of inorganic repair materials for repairing concrete channels in the pre-survey and monitoring survey
Paddy and Water Environment ( IF 2.2 ) Pub Date : 2023-01-29 , DOI: 10.1007/s10333-022-00914-6
Satoshi Kato , Kazuhiro Ueno , Masahiro Hyodo , Hidehiko Ogata

Many open concrete channels in Japan have exceeded their standard service life and have decreased function due to deterioration. To maintain efficient drainage and transport and distribution of water to fields, it is necessary to extend the service life by repairing the channels. Inorganic repair material has been used for repairing concrete and has a number of performance requirements. For example, adhesion is an important performance requirement to ensure that repair material does not detach from the open concrete channel. It is evaluated by an adhesion strength test, which is performed in the pre-survey and the monitoring survey and has three main test standards. Because the test standards are intended to be performed in a laboratory, the monitoring survey can refer only to the test standards, and there is no standard for the monitoring survey. Furthermore, unlike the base surface in the test standards, the open channel surface is uneven before repair. Therefore, the pre-survey is not sufficient to evaluate the adhesion because it does not consider the construction environment. In this study, we proposed test methods for the monitoring survey and identified considerations for the pre-survey of base surface roughness, coating thickness, and cutting depth. Adhesion strength decreased as the cutting depth increased or the base surface roughness increased. Therefore, the base surface roughness should be measured in the pre-survey, and the monitoring survey should be conducted at points where the base surface roughness is the same. In addition, the cutting depth should be consistent in the monitoring survey.



中文翻译:

基面粗糙度、切割深度和涂层厚度对混凝土渠道修复无机修复材料附着力的影响预查和监测调查

日本的许多混凝土明渠都超过了标准使用寿命,并且因劣化而功能下降。为了保持高效的排水和田间水的输送和分配,有必要通过修复渠道来延长使用寿命。无机修复材料已用于修复混凝土,并具有许多性能要求。例如,附着力是一项重要的性能要求,可确保修复材料不会从开放的混凝土通道中脱落。它通过附着强度测试进行评估,该测试在预调查和监测调查中进行,并具有三个主要测试标准。因为测试标准是要在实验室进行的,所以监测调查只能参考测试标准,监测调查没有标准。此外,与测试标准中的基面不同,明渠表面在修复前是不平坦的。因此,预调查没有充分考虑施工环境,不足以评估附着力。在本研究中,我们提出了监测调查的测试方法,并确定了基面粗糙度、涂层厚度和切削深度预调查的注意事项。附着强度随着切削深度的增加或基面粗糙度的增加而降低。因此,预检应测量基面粗糙度,监测测量应在基面粗糙度相同的点进行。此外,切割深度应与监测测量一致。修复前明渠表面不平整。因此,预调查没有充分考虑施工环境,不足以评估附着力。在本研究中,我们提出了监测调查的测试方法,并确定了基面粗糙度、涂层厚度和切削深度预调查的注意事项。附着强度随着切削深度的增加或基面粗糙度的增加而降低。因此,预检应测量基面粗糙度,监测测量应在基面粗糙度相同的点进行。此外,切割深度应与监测测量一致。修复前明渠表面不平整。因此,预调查没有充分考虑施工环境,不足以评估附着力。在本研究中,我们提出了监测调查的测试方法,并确定了基面粗糙度、涂层厚度和切削深度预调查的注意事项。附着强度随着切削深度的增加或基面粗糙度的增加而降低。因此,预检应测量基面粗糙度,监测测量应在基面粗糙度相同的点进行。此外,切割深度应与监测测量一致。由于未考虑施工环境,预调查不足以评估附着力。在本研究中,我们提出了监测调查的测试方法,并确定了基面粗糙度、涂层厚度和切削深度预调查的注意事项。附着强度随着切削深度的增加或基面粗糙度的增加而降低。因此,预检应测量基面粗糙度,监测测量应在基面粗糙度相同的点进行。此外,切割深度应与监测测量一致。由于未考虑施工环境,预调查不足以评估附着力。在本研究中,我们提出了监测调查的测试方法,并确定了基面粗糙度、涂层厚度和切削深度预调查的注意事项。附着强度随着切削深度的增加或基面粗糙度的增加而降低。因此,预检应测量基面粗糙度,监测测量应在基面粗糙度相同的点进行。此外,切割深度应与监测测量一致。附着强度随着切削深度的增加或基面粗糙度的增加而降低。因此,预检应测量基面粗糙度,监测测量应在基面粗糙度相同的点进行。此外,切割深度应与监测测量一致。附着强度随着切削深度的增加或基面粗糙度的增加而降低。因此,预检应测量基面粗糙度,监测测量应在基面粗糙度相同的点进行。此外,切割深度应与监测测量一致。

更新日期:2023-01-30
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