BS EN 1770-1998 Products and systems for the protection and repair of concrete structures Test methods Determination of the coefficient of thermal expansion《混凝土结构保护和修理的产品和设备 试验方法 热.pdf
《BS EN 1770-1998 Products and systems for the protection and repair of concrete structures Test methods Determination of the coefficient of thermal expansion《混凝土结构保护和修理的产品和设备 试验方法 热.pdf》由会员分享,可在线阅读,更多相关《BS EN 1770-1998 Products and systems for the protection and repair of concrete structures Test methods Determination of the coefficient of thermal expansion《混凝土结构保护和修理的产品和设备 试验方法 热.pdf(14页珍藏版)》请在麦多课文档分享上搜索。
1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 1770:1998 The Europ
2、ean Standard EN 1770:1998 has the status of a British Standard ICS 91.080.40 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Products and systems for the protection and repair of concrete structures Test methods Determination of the coefficient of thermal expansionThis British
3、 Standard, having been prepared under the direction of the Sector Committee for Building and Civil Engineering, was published under the authority of the Standards Committee and comes into effect on 15 November 1998 BSI 1998 ISBN 0 580 30117 6 BS EN 1770:1998 Amendments issued since publication Amd.
4、No. Date Text affected National foreword This British Standard is the English language version of EN 1770:1998. The UK participation in its preparation was entrusted by Technical Committee B/517, Concrete, to Subcommittee B/517/8, Protection and repair of concrete structures, which has the responsib
5、ility to: aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizatio
6、ns represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Cor
7、respondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does
8、not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 10, an inside back cover and a back cover.CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komi
9、tee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1998 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1770:1998 E EUROPEAN STANDARD EN 1770 NORME EUROPE ENNE EUROPA ISCHE NORM March 1998 ICS 91.080.40 Descr
10、iptors: concrete structures, repairs, protection, materials, binders: materials, products for concrete construction, tests, determination, thermal expansion English version Products and systems for the protection and repair of concrete structures Test methods Determination of the coefficient of ther
11、mal expansion Produits et syste mes pour la protection et la re paration des structures en be ton Me thodes dessais De termination du coefficient de dilatation thermique Produkte und Systeme fu r den Schutz und die Instandsetzung von Betontragwerken Pru fverfahren Bestimmung des Wa rmeausdehnungskoe
12、ffizienten This European Standard was approved by CEN on 22 February 1998. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliog
13、raphical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a
14、 CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norw
15、ay, Portugal, Spain, Sweden, Switzerland and United Kingdom.Page 2 EN 1770:1998 BSI 1998 Foreword This European Standard has been prepared by Technical Committee CEN/TC 104, Concrete (performance, production, placing and compliance criteria), the Secretariat of which is held by DIN. NOTE This Europe
16、an Standard should be read together with EN 1504-1. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by September 1998, and conflicting national standards shall be withdrawn at the latest by September
17、 1998. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norw
18、ay, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Thermomechanical analysis 3 3.1 Principle 3 3.2 Apparatus 3 3.3 Test procedure 3 3.4 Calculation 4 3.5 Test report 4 4 Alternative method 4 4.1 Principle 4 4.2 Apparatus 5 4
19、.3 Test procedure 5 4.4 Calculation of the coefficient of thermal expansion 6 4.5 Test report 6 5 Reproducibility 6 Annex A (informative) Bibliography 10Page 3 EN 1770:1998 BSI 1998 1 Scope This European Standard specifies methods for the determination of the coefficient of thermal expansion of hard
20、ened structural bonding agents. The first method provides a continuous measurement of linear thermal expansion using thermomechanical analysis techniques. This method may also be used for surface protection systems. The alternative method uses prisms of 40 mm3 40 mm3 160 mm. This method may also be
21、used for repair mortar. Both methods are suitable for bonding agents formulated with fillers of up to 4 mm. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in
22、the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to
23、 applies. prEN 12190, Products and systems for the protection and repair of concrete structures Test methods Determination of compressive strength. 3 Thermomechanical analysis 3.1 Principle The coefficient of thermal expansion of resinous materials is to be measured at an age of 7 days (storage at (
24、21 2)8C and (60 10) % relative humidity). Once hardened the bonding agent is subjected to a constant heating rate. This method uses a thermomechanical analyser to determine the changes in length, which is electronically recorded as a function of temperature. The coefficient of linear thermal expansi
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