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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According to the results from this EU project, it seems no single test method can completely cover all three key properties.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member. ENTesting fresh concrete, consists of the following parts: A number of test methods including this test are available for testing fresh SCC.
Please first log in with a verified email before subscribing to alerts. Proceed to Checkout Continue Shopping. If the difference 1 2 between d and d is greater than 50 mm another sample shall be taken and the procedure repeated. A list of organizations represented on this committee can be obtained on request to its secretary. Users are responsible for its correct application.
This European Standard 12350-88 the procedure for determining the slump-flow and t time for self-compacting concrete.
Need more than one copy? All lines to be a maximum of 2,0 mm wide and 1,0 mm deep. For dated references, only the edition cited applies.
Wash wet concrete off the skin immediately. BSI is incorporated 123550-8 Royal Charter. As the voice of the U. Measurement of the t time may be omitted if not requested. The deviation from flatness shall not exceed 3 mm at any point when a straight edge is placed between opposing sides and corners. E worldwide for CEN national Members. Take precautions to avoid dry cement entering the eyes, mouth and nose whilst mixing concrete.
BS EN – Testing fresh concrete. Self-compacting concrete. Slump-flow test
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. Please first verify your email before subscribing to alerts.
The resulting values for r and R are given in Tables 1 and 2. Your Alert Profile lists the documents that will be monitored. Find out more about British Standards by visiting our website at commercial publication and use. When the cone is withdrawn upwards the time from commencing upward movement of the cone to when the concrete has flowed to a diameter bx mm is measured; this is the t time.
Check the top surface for horizontality using the spirit level. We have no document history for this standard. If you find an inaccuracy or ambiguity within a British Standard or other The knowledge embodied in our standards has been carefully assembled in BSI publication please inform the Knowledge Centre.
The construction of the plate shall be such as to prevent distortion. It is based on the slump test described in EN For further information on our subscription products go to Email: Licences can cover as few or as many users as you wish. All the data, software and documentation set out in all British Standards and Information on standards other BSI publications are the property of and copyrighted by BSI, or some person or entity that owns copyright in 12530-8 information used such as the international 13250-8 can provide you with the knowledge that your organization needs standardization bodies and has formally licensed such information to BSI for to succeed.
The t time is a measure of the speed of flow and an indication of the relative viscosity of the self-compacting concrete. Allow the filled cone to stand for not more than 30 s; during this time remove any spilled concrete from the baseplate. Lift the cone vertically in 1 s to 3 s in one movement without interfering with the flow of concrete.
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.
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You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. About us Revisions We bring together business, industry, government, consumers, innovators Our British Standards and other publications are updated by amendment or 13250-8. The fresh concrete is poured into a cone as used for the EN slump test. If the t time has been requested, start the stop watch immediately the cone ceases to be in contact with the baseplate and record the time taken to the nearest 0,1 s for the concrete to first touch the mm circle After the flow of concrete has stabilized without disturbing the baseplate or concrete, measure the largest diameter of the flow spread and record as d1 to the nearest 10 mm.
BS EN 12350-8:2010
This standard is not included in any packages. The use of SCC in practical concrete construction is steadily increasing. The largest diameter 123508- the flow spread of the concrete and the diameter of the spread at right angles to it are then measured and the mean is the slump-flow.
NOTE The collar allows the test to be carried out by one person.