1、 ISO 2014 Maintenance and repair of concrete structures Part 4: Execution of repairs and prevention Entretien et rparation des structures en bton Partie 4: Excution des rparations et prvention INTERNATIONAL STANDARD ISO 16311-4 First edition 2014-04-15 Reference number ISO 16311-4:2014(E) ISO 16311-
2、4:2014(E)ii ISO 2014 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2014 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the interne
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4、w.iso.org Published in Switzerland ISO 16311-4:2014(E) ISO 2014 All rights reserved iii Contents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references 1 3 T erms and definitions . 2 4 Structural stability during execution of repairs 3 5 General requirements . 4 6 Methods of prevention a
5、nd repair . 4 7 Preparation of substrate 4 7.1 General . 4 7.2 Preparation of concrete . 4 7.3 Preparation of reinforcement .14 8 Application of products and systems .14 8.1 General 14 8.2 Structural strengthening to restore member capacity methods .15 8.3 Defects caused by reinforcement corrosion .
6、18 9 Quality control .19 9.1 General 19 9.2 Quality control tests and observations .19 10 Maintenance following completion of remedial action.20 11 Health, safety, and the environment .20 Annex A (informative) Commentary on the Execution of Repairs and Prevention .31 ISO 16311-4:2014(E) Foreword ISO
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13、ommittee responsible for this document is ISO/TC 71, Concrete, reinforced concrete and pre-stressed concrete, Subcommittee SC 7, Maintenance and repair of concrete structures, the secretariat of which is held by KATS. ISO 16311 consists of four parts: Part 1: General principles Part 2: Assessment of
14、 existing concrete structures Part 3: Design of repairs and prevention Part 4: Execution of repairs and preventioniv ISO 2014 All rights reserved ISO 16311-4:2014(E) Introduction This part of ISO 16311 defines and specifies site application of products and systems and quality control of the work. To
15、 be operable, this part of ISO 16311 needs a National Annex or a reference to where national complementary provisions are given. This part of ISO 16311 can also be applied on specific projects where a project specification will supplement the standards in lieu of a National Annex applicable in the p
16、lace of use. The execution of maintenance and repair of concrete structures is an important and integral part of the complex process of protection and repair, and this part of ISO 16311 specifies how it shall be carried out. The specifications in this part of ISO 16311 are part of the definition of
17、the intended use for the relevant products and systems. The execution shall be in accordance with this series of International Standards: ISO 22966, ISO 22965-1, ISO 22965-2, ISO 2394, and any other relevant ISO and National Standards valid in the place of use. This part of ISO 16311 incorporates ru
18、les for the use of maintenance and repair materials and systems that are covered by International Standards. Until International Standards are developed, the standards cited in the National Annex (often regional or national standards) for materials and systems shall be followed. Maintenance and repa
19、ir methods applying traditional concrete construction work are listed in this part of ISO 16311, but reference is made to relevant standards. Maintenance and repair methods applying electrochemical methods, e.g. cathodic protection, realkalisation of carbonated concrete, and chloride extraction, are
20、 listed in this part of ISO 16311, but reference is made to standards or guidelines valid in the place of use. Maintenance and repair shall be executed according to a project specification including the necessary requirements on remedies, methods, and materials per ISO 16311-3. This part of ISO 1631
21、1 contains an Annex A which provides guidance and background information to the normative text. The contents of Annex A are numbered in the same way as the normative text to facilitate reference, but prefixed with “A”. ISO 2014 All rights reserved v Maintenance and repair of concrete structures Part
22、 4: Execution of repairs and prevention 1 Scope This part of ISO 16311 gives requirements for substrate condition before and during application, including structural stability, storage of materials, the preparation, and application of products and systems for the protection and repair of concrete st
23、ructures, including quality control and qualifications of personnel, maintenance, health and safety, and the environment. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references,
24、only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 1920-2, Testing of concrete Part 2: Properties of fresh concrete ISO 1920-3, Testing of concrete Part 3: Making and curing test specimens ISO 1920-4, Testing
25、of concrete Part 4: Strength of hardened concrete ISO 1920-5:2004, Testing of concrete Part 5: Properties of hardened concrete other than strength ISO 1920-6, Testing of concrete Part 6: Sampling, preparing and testing of concrete cores ISO 1920-7:2004, Testing of concrete Part 7: Non-destructive te
26、sts on hardened concrete ISO 2394, General principles on reliability for structures ISO 2409, Paints and varnishes Cross-cut test ISO 2808, Paints and varnishes Determination of film thickness ISO 3274, Geometrical Product Specifications (GPS) Surface texture: Profile method Nominal characteristics
27、of contact (stylus) instruments ISO 4288, Geometrical Product Specifications (GPS) Surface texture: Profile method Rules and procedures for the assessment of surface texture ISO 4624, Paints and varnishes Pull-off test for adhesion ISO 4628-1, Paints and varnishes Evaluation of degradation of coatin
28、gs Designation of quantity and size of defects, and of intensity of uniform changes in appearance Part 1: General introduction and designation system ISO 4628-2, Paints and varnishes Evaluation of degradation of coatings Designation of quantity and size of defects, and of intensity of uniform change
29、s in appearance Part 2: Assessment of degree of blistering ISO 4628-3, Paints and varnishes Evaluation of degradation of coatings Designation of quantity and size of defects, and of intensity of uniform changes in appearance Part 3: Assessment of degree of rusting ISO 4628-4, Paints and varnishes Ev
30、aluation of degradation of coatings Designation of quantity and size of defects, and of intensity of uniform changes in appearance Part 4: Assessment of degree of cracking INTERNATIONAL ST ANDARD ISO 16311-4:2014(E) ISO 2014 All rights reserved 1 ISO 16311-4:2014(E) ISO 4628-5, Paints and varnishes
31、Evaluation of degradation of coatings Designation of quantity and size of defects, and of intensity of uniform changes in appearance Part 5: Assessment of degree of flaking ISO 4628-6, Paints and varnishes Evaluation of degradation of coatings Designation of quantity and size of defects, and of inte
32、nsity of uniform changes in appearance Part 6: Assessment of degree of chalking by tape method ISO 4677-1, Atmospheres for conditioning and testing Determination of relative humidity Part 1: Aspirated psychrometer method ISO 4677-2, Atmospheres for conditioning and testing Determination of relative
33、humidity Part 2: Whirling psychrometer method ISO 6935-2, Steel for the reinforcement of concrete Part 2: Ribbed bars ISO 8501-1, Preparation of steel substrates before application of paints and related products Visual assessment of surface cleanliness Part 1: Rust grades and preparation grades of u
34、ncoated steel substrates and of steel substrates after overall removal of previous coatings ISO 8501-1, Preparation of steel substrates before application of paints and related products Visual assessment of surface cleanliness Part 1: Rust grades and preparation grades of uncoated steel substrates a
35、nd of steel substrates after overall removal of previous coatings ISO 8502-2, Preparation of steel substrates before application of paints and related products Tests for the assessment of surface cleanliness Part 2: Laboratory determination of chloride on cleaned surfaces ISO 8502-3, Preparation of
36、steel substrates before application of paints and related products Tests for the assessment of surface cleanliness Part 3: Assessment of dust on steel surfaces prepared for painting (pressure-sensitive tape method) ISO 8502-4, Preparation of steel substrates before application of paints and related
37、products Tests for the assessment of surface cleanliness Part 4: Guidance on the estimation of the probability of condensation prior to paint application ISO 13822, Bases for design of structures Assessment of existing structures ISO 16311-1, Maintenance and repair of concrete structures Part 1: Gen
38、eral principles ISO 16311-2, Maintenance and repair of concrete structures Part 2: Assessment of existing concrete structures ISO 16311-3, Maintenance and repair of concrete structures Part 3: Design of repairs and prevention ISO 19338, Performance and assessment requirements for design standards on
39、 structural concrete ISO 22965-1, Concrete Part 1: Methods of specifying and guidance for the specifier ISO 22965-2, Concrete Part 2: Specification of constituent materials, production of concrete and compliance of concrete ISO 22966, Execution of concrete structures 3 T erms a nd definiti ons For t
40、he purpose of this document, the terms and definitions given in ISO 16311-1, ISO 2394, ISO 13822, and ISO 19338 and the following apply.2 ISO 2014 All rights reserved ISO 16311-4:2014(E) 3.1 bond the adhesion of the applied product or system to the substrate Note 1 to entry: The bond requirements fo
41、r a given repair can range from negligible (i.e. a bond breaker is required) to firmly adherent. 3.2 cement grout mixture of cement, water, and, in some cases, admixtures 3.3 cementitious repair products and systems hydraulic or polymer hydraulic mortars, concretes, and grouts 3.4 dew point temperat
42、ure at which water vapour condenses 3.5 hydraulic mortars and hydraulic concrete mortars or concrete based on a hydraulic binder which is blended together with graded aggregates and can include admixtures and additions which, when mixed with mortar, set by hydrated reaction 3.6 mortars or concrete h
43、ydraulic, polymer hydraulic, and polymer mortar and concrete 3.7 polymer hydraulic cement mortars and concrete hydraulic mortars or concrete modified by the addition of a polymer 3.8 polymer mortars and polymer concretes blended mixture of polymer binder and graded aggregate which set by polymerisat
44、ion reaction 3.9 preformed hole hole or slot formed or cut in concrete into which reinforcement or other fixing is to be anchored 3.10 quality plan programme to ensure that the activities of a process are undertaken to comply with the intended design 3.11 overspray airborne debris resulting from the
45、 application of sprayed concrete or mortar which can form an unwanted coating on the substrate 3.12 sprayed mortar or concrete mortar or concrete applied under pressure through a nozzle delivered through pipes 3.13 wet on wet application of a cementitious mortar or concrete onto the surface of a sim
46、ilar material which has set but not hardened 4 Structural stability during execution of repairs Safety and stability before, during, and after repair shall be maintained in accordance with ISO 16311-3. ISO 2014 All rights reserved 3 ISO 16311-4:2014(E) Any period required for gain of strength of the
47、 repair products and systems shall be a part of the duration of the repair. 5 General requirements Consideration shall be given to the chemical, electrochemical, and physical condition of the substrate and any contaminants, the ability of the structure to accept loading, movement and vibration durin
48、g protection and repair, ambient conditions, and the characteristics of the materials contained in the structure and those of the protection and repair products and systems. The following requirements shall be met. The achievement of the required condition of the substrate regarding cleanliness, rou
49、ghness, cracking, tensile and compressive strength, chloride or other contaminant and their penetration, depth of carbonation, moisture content, temperature, and degree of corrosion of reinforcement. The achievement of the compatibility of the original concrete and reinforcement with the protection or repair products and systems and compatibility between any different products and systems, including avoiding the risk of creating condit
