BS EN BRITISH STANDARD National foreword This British Standard is the UK implementation of EN This publication does not. Find the most up-to-date version of BS EN at Engineering PREN Draft BS EN Testing fresh concrete. Part 8: Self- compacting concrete – Slump-flow test.
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Wash wet concrete off the skin immediately. The test is not suitable when the maximum size of the aggregate exceeds 40 mm. The deviation from flatness shall not exceed 3 mm at any point when a straight edge is placed between opposing sides and corners.
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BS EN – Testing fresh concrete. Self-compacting concrete. Slump-flow test
The fresh concrete is poured into a cone as used for the EN slump test. About us Revisions We bring together business, industry, government, consumers, innovators Our British Standards and other publications are updated by amendment or revision. Nevertheless any test method should at least em correlated to the practical situation and give consistent results bd order to provide reliable data for judgment of concrete workability. The report may include: For further information, email bsmusales.
This European Standard specifies the procedure for determining the slump-flow and t time for self-compacting concrete. Proceed to Checkout Continue Shopping. If the document is revised or amended, you will be notified by email. Since SCC has to give satisfactory in-situ properties perfect filling of the mould and embedment of the reinforcement, homogeneity and full compaction without vibration, the proper methods for testing the fresh SCC are very important.
Allow the filled cone to stand for not more than 30 s; during this time remove any spilled concrete from the baseplate.
The t time is a rn of the speed of flow and an indication of the relative viscosity of the self-compacting concrete. The result is an indication of the filling ability of self-compacting concrete. Already Subscribed to this document.
BS EN 12350-8:2010
A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the 12350–8 Management Centre has the same status as the official versions.
It is desirable, especially in the case of new constituents or new concrete compositions, to test the consistence of fresh SCC before casting in place. Licences can cover as few or as many users as you wish. You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. Prevent skin contact with wet cement or concrete by wearing suitable protective clothing.
According to the results from this EU project, it seems no single test method can completely cover all three key properties. Organizations of all sizes and across all sectors choose standards to help Copyright them achieve their goals. A number of fn methods including this test are available for testing fresh SCC.
Add to Alert PDF. Customer Services If you need international and foreign standards from other Standards Development Tel: The surface shall not be readily attacked by cement paste or be liable to rusting. 12350-
Find out more about British Standards by visiting our website at commercial publication and use. Measurement of the t time may be omitted if not requested. The test is not suitable when the maximum size of the aggregate exceeds 40 mm.
Standards Subscriptions from ANSI provides a eb, multi-user solution for accessing standards. 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 12350-88 standards shall be withdrawn at the latest by January Please first log in with a verified email before subscribing to alerts.
Slump-test 3 Principle The slump-flow and t time is used to assess the flowability and the flow rate of self-compacting concrete in the absence of obstructions. Fill the ns in one operation without any agitation or mechanical compaction, and strike off surplus from the top of the cone.
This standard is also available to be included in Standards Subscriptions. Then measure the diameter of the flow spread at right angles to d to the nearest 10 mm and record as ne to the nearest 10 mm. Place the cone centrally within the mm circle on the baseplate and hold in position by standing on the foot pieces or use the collarensuring that no concrete can leak from under the cone.
These should dn three key properties: