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BS 6089-1981 Guide to assessment of concrete strength in existing structures

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BS 6089-1981 Guide to assessment of concrete strength in existing structures
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BSI BS*608981■1624669001b2622■BS6089:1981UDC624.012.3/.4j.046:691.32:620.17●Guide toAssessment of concrete strengthin existing structuresGuide pour I'valuation de la resistance du beton dans les constructions existantesLeitfaden fur die Beurteilung der Betonfestigkeit in vorhandenen BauwerkenBritish Standards InstitutionCopyright by the British Standards InstitutionMon Jul2414:34:472000BSI BS:*608981■162466900162634■BS6089:1981ContentsPagePageForewordInside front coverTablesCooperating organizationsBack cover1.Guide to tests for assessing aspectsof concrete strengthGuide2.Relative merits and limitations of1.Scope1various tests2.References13.Definitions1Figures11.Illustration of approximate relationship5.Test methodsof compressive strengths106.Conducting an investigation62.Comparisons between design strengthand estimated in-situ cube strength11AppendixA.Bibliography8ForewordThe need to assess the strength of the concrete in anselection of the method and testing programme mostexisting structure can arise from a variety of reasons,appropriate to the circumstances that prevail.such as doubts following non-compliance of standardThe interpretation of the test results and the factors thatcube strength results or possible deterioration due toinfluence the relationship between the standard cubeaggressive environments or a wish to check that thestrength and the strength of the concrete in the structurestrength is acceptable for a particular loading system,are also discussed.especially when additional loading is being considered.The recommendations in this standard are intended toThe drilling and testing of cores has been commonprovide guidance only;they are not intended to supplantpractice for many years and several non-destructiveengincering judgement or to inhibit the development andtests have been available,well established test methodsuse of other test methods.being described in BS 1881 and BS 4408.Numbers in parentheses in the text of the standard referThis guide presents information on the standard methodto the numbered references given in appendix A.and on certain other methods that will assist in theCopyright by the British Standards InstitutionMon Jul2414:34:562000
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