GB 50728-2011 Translated English of Chinese Standard. GB50728-2011: Technical code for safety appraisal of engineering structural strengthening materialshttps://www.chinesestandard.net, 8. 1. 2018 - Počet stran: 144 This Code is formulated with a view of strengthening the quality control and technical management of relevant materials and products used in the engineering structural strengthening to ensure the quality and safety of the engineering structural strengthening projects. |
Obsah
| 10 | |
Structural adhesives | 18 |
Injection grouting for cracks | 40 |
Polymer modified cement mortar for structural strengthening | 47 |
Steel wire ropes | 54 |
Steel fibre reinforced concrete | 59 |
Determination method for interlaminar shear strength | 74 |
Annex G Laboratory determination method and evaluation criteria | 89 |
Annex K Determination method for bond strength of adhesive agglutinate | 104 |
Annex N Determination method and evaluation criteria for compressive shear | 116 |
Annex R Determination method for thixotropic index of structural adhesive | 129 |
Explanation of wording in this Code | 142 |
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Acceptable indices ageing test Annex bonded rebars carbon fibre Characteristic value Code cohesive failure Compressive strength concrete substrates condition of 50 conformity assessment curing structural adhesives current national standard damp heat ageing days of curing Determination method elastic modulus engineering structural strengthening failure modes fibre reinforced concrete fibre reinforced polymer flexural strength following requirements formwork glue grouting for cracks grouting material Heat deflection temperature impact peeling indices for appraisal injection grouting inspection lot lot numbers mean values meet the following meet the requirements modified cement mortar mold national standard GB/T peeling length PERFORM the testing polymer modified cement post-installed fastenings relative humidity requirements of Table resistance ability safety appraisal sampling rules shear strength specified steel fibres steel MPa steel to steel steel wire ropes strength for steel strength grade strengthening materials surface Tensile bond strength tensile shear strength tensile strength test report testing at 23 testing machine thixotropic viscometer viscosity