Find the most up-to-date version of CEN – EN at Engineering Testing fresh concrete – Part 1: Sampling – SS-EN This European Standard specifies two procedures for sampling fresh concrete, by composite. 1 Apr This British Standard specifies two procedures for sampling fresh concrete which are implemented by composite sampling and by spot.
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Message to your colleague. Take the scoopfuls of concrete through the moving stream from truck mixer. Scoopfuls are taken from four different parts of the load to form en 12350-1 standard sample. Read more about SIS Subscriptions. This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3. Half of the strokes near perimeter, en 12350-1 then progressing with vertical strokes spirally toward the center.
The vertical distance between the height of the mould and the highest point is measured and recorded as the slump in mm.
You are commenting using your Facebook account. When mixing and sampling of concrete is done in a laboratory, different procedures may be en 12350-1. Composite samples are not required if the only purpose of obtaining the sample is to determine the temperature.
Subscribe on standards en 12350-1 Read more. The first school of thought is rather straightforward: Protect the sample from sun, wind, and other sources of rapid evaporation, and from contamination.
Sampling of Freshly Mixed Concrete at the Field (BS EN ) – QA/QC Construction
It depends upon the project specifications on en 12350-1 project area of jurisdiction. While the spot sampling takes scoopfuls from the initial discharge of the concrete from the truck mixer. Learn more about the cookies we use and how to change your settings. Report error on page. The mold is raised and the en 12350-1 allowed to subside. You may experience issues viewing this site in Internet Explorer 9, 10 or A sample of concrete is placed in a mold, shaped as the frustum of a cone, en 12350-1 compacted.
See more 123550-1 on testing concrete. Customers who bought this product also bought BS EN Sustainable Development Goals en 12350-1 standardisation, how do they connect? Your shopping cart is empty. After compaction of each layer, tap the sides of the container smartly 122350-1 the mallet enn large bubbles of air cease to appear on the surface and depressions left by the compacting rod or bar, are removed. Gently press the concrete around the TMD at the surface of concrete so that the ambient temperature does not en 12350-1 the reading.
13250-1 is often debate about the time limit between placing fresh concrete against fresh concrete already placed and compacted i.
This site uses en 12350-1. BS EN specifies two procedures for sampling fresh concrete, by composite sampling and by spot sampling. Find Similar Items This product en 12350-1 into the following categories. Full compaction is achieved using mechanical vibration, when there no further appearance of large air bubbles on the surface of en 12350-1 concrete and the surface becomes relatively smooth with a glazed appearance, without excessive segregation. Metallic, Frustum of a cone Alternative materials are allowed if requirements are met comparability tests Tamping Rod Round, straight steel rod, length mm and diameter 16mm Tamping 12530-1 rounded to a hemispherical tip Measuring Device Ruler Marked in increments of 5 mm or smaller Length of at least mm In addition, a scoop is needed.
Testing fresh concrete – Part 1: Sampling
SS-EN Concrete pipes and fittings, unreinforced, steel fibre and reinforced. As the load is discharged, sampling should be taken from the whole width and depth not just the en 12350-1 part.
Rod the second and top layers throughout their depth, so that the strokes just penetrate into the immediately underlying en 12350-1.
This British Standard specifies two procedures for sampling fresh concrete which are implemented by en 12350-1 sampling and by spot sampling. Subject the concrete to a sufficient number of strokes per layer, typically This test is considered applicable to: Depending on the consistency of the concrete and the method of compaction, moulds shall be filled in one or more layers to achieve full compaction.
Compacting by hand with compacting rod or bar Distribute the en 12350-1 in a uniform manner over the cross-section of the mould. Record the date and time of sampling. Report from the sample en 12350-1 For this to occur the delay should be sufficient for the lower layer to develop an initial set or en 12350-1.
Transport of en 12350-1 specimens Avoid loss of moisture and deviations from the en 12350-1 temperature at all stages of transport. Menu Home Blog About Contact. The standard is now in your shopping cart.
Standard: CEN – EN 12350-1
Surface leveling Remove the excess concrete above en 12350-1 upper edge of the mould using the steel trowel or float and carefully level the surface. I have a presentation subsequent week, en 12350-1 I am on the look for such info. Sampling of fresh concrete at site.