It supersedes BS EN which is withdrawn.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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Learn more about the cookies we use and how to change your settings. Free to use BIM project bx 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. The sample shall be re-mixed, using the remixing container and square mouth shovel, before filling the moulds.
Beyond these extremes the measurement of slump can be unsuitable and other methods of determining the consistency should be considered. The series EN includes the following parts: The slump test is sensitive to changes in the consistence of concrete, which correspond to slumps between 10 mm and mm.
BS EN 12350-1/BS EN 12350-2/BS EN 12390-2/BS EN 12390-2
Em as permitted under the Copyright, Designs and Patents Act no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means — electronic, photocopying, recording or otherwise — without prior written permission from BSI. Tensile splitting strength of test specimens; Part 7: Slump-test BS EN specifies a method for determining the consistence of fresh concrete by the slump test.
Users are responsible for its correct application. Attention is drawn to the possibility that some of the elements 1250-2 this document may be the subject of patent rights.
Regular checks should be made that surfaces of specimens in the chamber are continuously wet.
This publication does not purport to include all the necessary provisions of a contract. Take precautions to avoid dry cement entering the eyes, mouth and nose whilst mixing concrete. Compressive strength of test specimens; Part 4: Want access to British Standards?
BS EN – Testing fresh concrete. Slump-test – BSI British Standards
If the slump continues to change over a period of 1 min after de-moulding, the slump test is not suitable as a measure of consistence.
This document supersedes EN Compressive strength – Specification for testing machines; Part 5: You may find similar fn within these categories by selecting from the choices below:. Each layer shall be compacted by using one of the methods described in 5. EN Testing hardened concrete — Part 1: However, it was found in this programme that the use of an internal vibrator to compact specimens of air entrained fresh concrete should only be done with caution, if loss of entrained air is to be avoided.
Shape, dimensions and other requirements of specimens and moulds; Part 2: Users of British Standards should make sure that they possess the latest amendments or editions.
Various BSI electronic information services are also available which give details on all its products and services. Contents of BS Ej NOTE 2 Laboratory tests have shown that great care is needed if loss of entrained air is to be avoided when using an internal vibrator. Customers who bought this product also bought BS EN Search all products by.
BS EN 新拌混凝土试验.坍落试验 – MBA智库文档
Making and curing specimens for strength tests; Part 3: Again there may be more recent versions of the document. Avoid over- vibration, which may cause loss of entrained air.
It presents the UK view on standards in Europe and at the international level. NOTE 1 Full compaction 1250-2 achieved using mechanical vibration, when there no further appearance of large air bubbles on the surface of the concrete and the surface becomes relatively smooth with a glazed appearance, without excessive segregation. Click to learn more. Document Status Indicators The Green document status indicator indicates that the document is: Copyright Copyright vs in all BSI publications.
For dated references, only the edition cited applies. The vibrator should be vertical and not allowed ej touch eh bottom or sides of the mould. Flexural strength of test specimens; Part 6: If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained.
123550-2, dimensions and other requirements for specimens and moulds 3 Apparatus 3. Wash wet concrete off the skin immediately. The test is not suitable when the maximum size of aggregate in the concrete is greater than 40 mm. For details of these and other benefits contact Membership Administration.
It covers the preparation and filling of moulds, compaction of the concrete, levelling the surface, curing of test specimens and transporting test specimens. This does not preclude ns free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations.
BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Curing specimens in a closely regulated humidity chamber is recognised as being equivalent to curing in water.
Density of hardened concrete; Part 8: See more standards on testing concrete. Their committees work with the manufacturing and service industries, government, businesses and consumers to facilitate the production of British, European and International standards. 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 ba as the official versions.