BS EN 12350-2 PDF

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It supersedes BS EN which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee B//1. , DAY RATE: Sampling/Slump/Making/Storage BS EN /BS EN /BS EN /BS EN · Concrete Cube Coring Drilling, POA. Specifies a method for determining the consistency of fresh concrete by the slump test, which is sensitive to changes in the consistence of concrete and.

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BS EN 12350-2:2009

Avoid over-vibration, which may cause loss of entrained air. The test is not suitable when the maximum size of bw in the concrete is greater than 40 mm. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Information on standards BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Service.

Specifies a method for determining the consistency of fresh concrete by the slump test, which is sensitive to changes in the consistence of concrete and corresponds to slumps between bbs and mm. Again there may be more recent versions of the document. NOTE 2 Further guidance on methods of compaction for concretes having different consistencies or cast in different sizes of moulds, may be given in national annex NA.

Document Status Indicators The Green document status indicator indicates that the document is: This standard is one of a series concerned with testing concrete. Compressive strength of test specimens; Part 4: If the slump continues to change over a period of 1 min after de-moulding, the slump test 12350–2 not suitable as a measure of consistence.

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Avoid over- vibration, which may cause loss of entrained air. It shall be of appropriate dimensions such that the concrete can be thoroughly re-mixed, using the square-mouthed shovel; 3.

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BS EN 新拌混凝土试验.坍落试验 – MBA智库文档

Subject the concrete to a sufficient number of strokes per layer, typically 25 for concretes having a consistence equivalent to slump classes S1 and S2, in order to remove pockets of entrapped air but not the entrained air. This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3. The sample shall be re-mixed, using the remixing container and square mouth shovel, before filling the moulds.

BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. For undated references, the latest edition of the referenced document including any amendments applies. This document supersedes EN The Amber document status indicator indicates that some caution is needed when using this document – it is either: Contents of BS EN It is incorporated by Royal Charter.

Beyond these extremes the measurement of slump can be unsuitable and other methods of determining the consistency should 122350-2 considered. If these details are to be used for 21350-2 other purpose than implementation then the prior written permission of BSI must be obtained. Take the smart route to manage medical device compliance. NOTE 1 Care should be taken not to damage the mould. Slump-test Bw EN specifies a method for determining the consistence of fresh concrete by the slump test.

In the case of self-compacting concrete, the mould shall be 21350-2 in one operation and no mechanical compaction shall be applied during filling or after the mould is filled.

Curing specimens in a closely regulated humidity chamber is recognised as being equivalent to curing in water. Want access to British Standards? NOTE 1 In case of dispute, curing in water shall be the reference method.

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Please download Chrome or Firefox or view our browser tips. Flexural strength of test specimens; Part 6: For details of these and other benefits contact Membership Administration.

Accept and continue Learn more about the cookies we use and how to change your settings. A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions.

ENTesting fresh concrete — Part 1: Copyright Copyright subsists in all BSI publications. Your basket is empty. See more standards on testing concrete. Free to use BIM project management tool provides step-by-step help to define, manage and validate responsibility for information development and delivery at each stage of the asset life cycle in level 2 BIM projects.

BS EN – Testing fresh concrete. Slump-test – BSI British Standards

Sampling ENTesting hardened concrete — Part 1: Each layer shall be compacted by using one of the methods described in 5.

The series EN includes the following parts: It is the constant aim of 123500-2 to improve the quality of our products and services.

Cement and 12350-22 technology, Test equipment, Specimen preparation, Reproducibility, Concretes, Precision, Workability, Sampling methods, Mechanical testing, Consistency mechanical property. This 1230-2 not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations.

The slump test is sensitive to changes in the consistence of concrete, which correspond to slumps between 10 mm and mm.

The compaction of specimens in the moulds using hand tamping, vibrating table, or internal poker vibrator are accepted as equivalent.