標準號：BS 6089-2010
中文標準名稱：結(jié)構(gòu)和預制混凝土部件中的現(xiàn)場抗壓強度評估.BS EN 13791標準中所列要求的補充導則
英文標準名稱：Assessment of in-situ compressive strength in structures and precast concrete components - Complementary guidance to that given in BS EN 13791
標準類型：Q13
發(fā)布日期：2010/4/30 12:00:00
實施日期：2010/4/30 12:00:00
中國標準分類號：Q13
國際標準分類號：91.080.40;91.100.30
適用范圍：This British Standard complements BS EN 13791, which gives methodsfor determining the characteristic in-situ compressive strength inconcrete structures and precast concrete components based on:a) core testing;b) rebound hammer, ultrasonic pulse velocity and pull-out forcemeasurements after a relationship with core strength has beendetermined for the particular concrete under investigation.This British Standard provides additional guidance on:? planning an investigation (see Clause 5);? selection of test methods (see 5.4);? selection of the test locations (see 5.5 and 5.6);? assessment of individual core results within a group (see 6.1);? assessment where the strength of concrete based on testspecimens is in doubt (see Clause 7).In addition, this British Standard provides guidance on the followingcases not covered by BS EN 13791:? assessment of an unknown structure using a margin based on thet-statistic (see 6.2);? use of indirect methods without correlation to core strength(see 6.3);? relative testing, i.e. comparison of a volume of concrete underinvestigation with concrete in similar elements that has beenaccepted (see 6.4);? action when the producer has declared nonconformity (seeClause 8).This British Standard does not provide guidance on:? the use of cores with a diameter of less than 50 mm or the use ofmicrocores;? whether a structure has adequate durability;? the use of in-situ testing as an alternative to conformity testingbased on test specimens.