BS EN 12350-8 PDF
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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The construction of the plate shall be such as to prevent distortion. A list of organizations represented on this committee can be obtained on request to its secretary. Then measure the diameter of the flow spread at right angles to d to the nearest 10 mm and record as d to the nearest 10 mm.
e E worldwide for CEN national Members. We have no document history for this standard. The resulting values for r and R are given in Tables 1 and 2. The surface shall not be 21350-8 attacked by cement paste or be liable to rusting. According to the results from this EU project, it seems no single test method can completely cover all three key properties.
Please first verify your email before subscribing to alerts. Lift the cone vertically in 1 s to 3 s in one movement without interfering with the flow of concrete. BSI is incorporated by Royal Charter. You may delete a document from your Alert Profile at any time.
The result is an indication of the filling ability of self-compacting concrete. Bss the collar to the cone if being used. Wash wet concrete off the skin immediately. Take precautions to avoid dry cement entering the eyes, mouth and nose whilst mixing concrete.
The report may include: Your Alert Profile lists the documents that will be monitored. Fill the cone in one operation without any agitation bss mechanical compaction, and strike off surplus from the top of the cone.
If the difference 1 2 between d and d is greater than 50 mm another sample shall be taken and the procedure repeated. Clean the table and the cone and dampen immediately prior to testing, but keep free from excess moisture. NOTE The collar allows the test to be carried out by one person.
BS EN – Testing fresh concrete. Self-compacting concrete. Slump-flow test
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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. Measurement of the t time may be omitted if not requested.
If cement or concrete enters the eye, immediately wash it out thoroughly with clean water and seek medical treatment without delay.
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. Find out more about British Standards by visiting our website at commercial publication 123500-8 use. Add to Alert PDF. You can download and open this 12305-8 to your own computer but DRM prevents opening this file on another computer, including a networked server. Nevertheless any test method should at least be correlated to the practical situation and give consistent results in order to provide reliable data for judgment of concrete workability.
All lines to be a maximum of sb mm wide and 1,0 mm deep. 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 ba 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.
About us Revisions We bring together business, industry, government, consumers, innovators Our British Standards and other publications are updated by amendment or revision. Users are responsible for 123508- correct application. A number of test methods including this test are available for testing fresh SCC.
Need more than one copy? Please first log in with a verified email before subscribing to alerts. 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 largest diameter of 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. The test is not suitable when the maximum size of the aggregate exceeds 40 mm.
BS EN 12350-8:2010
The use of SCC in practical concrete construction is steadily increasing. Check the top surface for horizontality using the spirit level. These should address three key properties: Licences can cover as few or as many users as you wish. As the voice of the U. Proceed to Checkout Continue Shopping. When the cone is withdrawn upwards the time from commencing upward movement of the cone to when the concrete has flowed to a diameter e mm is measured; this is the t time.
Check the concrete spread for signs of segregation and report under item 8, f in a qualitative way, e. Already Subscribed to this document.