BS EN 934-2 PDF

Larsen Chemcrete HP3 is a ‘3rd generation’ high performance superplasticiser/ high range water reducer. HP3 is a solution of a polycarboxylate polymer and. EN – Definition, requirements, conformity, marking and labelling. • General Requirements. • Uniformly dispersed in Concrete. Find the most up-to-date version of BS EN at Engineering

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Skip to main content. Log In Sign Up. It supersedes BS EN The start and finish of text introduced or altered by CEN amendment is indicated in the text by tags! For example, text altered by CEN amendment A1 is indicated by!

The date of applicability of EN The Member States have agreed a nominal transition period for the co-existence of EN It is intended that this period will comprise a nominal nine month period during which any required changes to national regulations are to be made, followed by a further nominal twelve month period for the implementation of CE marking.

At the end of this co-existence period, the national standard s will be withdrawn. In the UK, the corresponding national standards are: Specification for accelerating and retarding water-reducing admixtures; — BS Specification for superplasticizing admixtures.

As these corresponding national standards have already been amended following partial replacement by EN Instead, only the nominal nine month transition period, set aside to allow required changes to national regulations to be made, is necessary. Based on this nominal nine month transition period BS NOTE This date is approximate. A list of organizations represented on this subcommittee can be obtained bw request to its secretary. Additional information Attention is drawn to the fact that the requirements for admixtures covered by EN Attention is also drawn to the requirements for corrosion behaviour in Table 1 item number 10 and Table ZA.

It states that until there is an accepted European Standard, the national regulations in place of use apply. However, if the product is to be placed on the 93-2 in EU or EFTA member states where there are national regulations for this characteristic, then testing is required in accordance with those regulations. This publication does not purport to include all the necessary provisions of a contract. Ba are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations.

Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 23 and a back cover.

BS EN 934-2:2009+A1:2012

The BSI copyright date displayed in this document indicates when the document was last issued. Concrete admixtures – Definitions, requirements, conformity, marking and labelling including amendments A1: Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Management Centre or to any CEN member. A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions.

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 Januaryand conflicting national standards shall be withdrawn at the latest by April This European Standard supersedes EN For relationship with EU Directive s see informative annex ZA which is an integral part of this standard.


This standard is a part of the series EN “Admixtures for concrete, mortar and grout” which additionally comprises the following parts – Part 3 Admixtures for masonry mortar – Definitions, requirements, conformity, marking and labelling – Part 4 Admixtures for grout for prestressing tendons – Definitions, requirements, conformity, marking and labelling – Part 5 Admixtures for sprayed concrete – Definitions, requirements, conformity, marking and labelling – Part 6 Sampling, conformity control and evaluation of conformity This European Standard is used with the standards of the EN series which comprises test methods for admixtures.

The annexes A and ZA are informative. Foreword to amendment A1 Enn document EN This European Standard covers matters for which the need for amendments or corrections to EN The numbering and headlines in the following correspond to those in EN for 93-2 the amendments and corrections apply. This European Standard specifies definitions and requirements for admixtures for use in concrete.

They may in c denedrahcno. For dated references, hs, NE subsequent amendments seTitserf gnc hcnoeter to lS or: For 93-42 references the latest edition of the publication referred to applies NEincluding amendments.

Reference concrete and reference mortar for testing. ENAdmixtures for concrete, mortar and grout – Test methods – Part 2: Determination of setting time. EN, Admixtures for concrete, mortar and grout – Test methods – Part 4: Determination of bleeding of concrete. Determination of capillary absorption.

ENAdmixtures for concrete, mortar and grout – Test methods – Part 6: Determination of the conventional dry material content soprup eht roFse.

BS EN | Jason Chan –

ENAdmixtures for concrete, mortar and grout – Test methods – Part Determination of the water soluble chloride content. Determination of air void charac- teristics in hardened concrete. Determination of the 934–2 content of dednetni sti ni evitceffe eb ot erutximda na fo ytilibaiirted tuohtmstceffe latne admixtures. Sampling, conformity control and evaluation of conformity.

Determination of the dimensional stability of iht fos stc ehT. HsTesting fresh concrete – Part 2: ENTesting fresh concrete – Part 5: Air ,etert content sdohtemmethod – Pressure lana derarfnI.

For the purposes of this standard, the following terms and definitions apply: Trial tests should be carried out with the materials to be used on site to find the dosage necessary to achieve the required result. AZ ehramki,gn lbaT transition efo 1ofAZ thexenna mix from the plastic to the rigid state 3. ETON imdAtxruse luohston d ldae to is aingfitnac i egnahcn teh rhsiro egakn isnapxefo no rahdened rcnocte.

Another method may be used provided the method can be shown to give essentially the same results as the method in ISO The compliance dosage cannot be stated, the dosage has to be adjusted to obtain the required c air content.

EN is the reference method. Other methods of determining the spacing factor e. The frequency of testing in connection with factory production control is given in Table Effective component infra red analysis and effect on setting time at maximum recommended dosage need not be included in the programme of factory production 9334-2.

They have to be included fn initial type testing. When the material is supplied into a bulk container at the point of delivery, the same information shall be provided in writing at the time of delivery. ENc Code, to identify the type of the admixture, consisting of the number of this standard and the number of the table which gives the additional performance requirements for the particular type of admixture.


Where the performance requirements are included in two tables both table numbers shall be included. This admixture shall not be taken to comply with EN after “date”; c instructions for homogenisation before use, when necessary; d instructions for use and any necessary safety precautions, e.

Compliance with this annex ZA confers a presumption of fitness of the admixtures for concrete covered herein for the intended uses under consideration in Table ZA. WARNING Other requirements and other EU Directives, not affecting the fitness for intended uses, can 394-2 applicable to the admixtures for concrete falling within the scope of this annex.

NOTE 1 There may be other requirements, relating to dangerous substances applicable 943-2 the products falling within its scope of this standard e.

In order to meet the provisions of the EU Construction Products Directive, these requirements need also to be complied with, when and where they apply. This annex establishes both the conditions for the CE-marking of the construction products intended for the uses indicated in Table ZA. The scope of this annex is defined by Table ZA. Admixtures for concrete as covered under the scope of this standard Intended use s: To be used in concrete for: Chloride ion content 4.

Requirements are for upper limit or declared maxi- mum value. Requirements are for declared maximum value. Requirements 4 25 36 2are for lower limits in test mix with 7 18 39 2admixture. Requirements are 8 39 310 4for upper limits in test mix with Requirements are for an upper and lower limit in test mix with ad- mixture.

Air void characteristic 4. Requirements are for an upper limit in 9342- mix with admixture. Requirements are for a lower limit in test mix with gs. Requirment is for an upper limit in test mix with admixture. Requirement are for upper and lower limit in test mix with admixture. Requirements are for lower limit in test mix with admixture. Requirement is for an upper limit in test mix with admixture.

Requirement are for lower limit in test mix with admixture.

Requirements are dependant on regulations in the place of use. Durability Durability relates to the concrete incorporating admixtures. The requirement on a certain characteristic is not vs in those Member States MSs where there are no regulatory requirements on that characteristic for the intended use of the product. In this case, manufacturers placing their products on the market of these MSs are not obliged to determine nor declare the performance of their products with regard to this characteristic and the option “No performance determined” NPD in the information accompanying the CE marking see ZA.