Newton
The strength of concrete is measured in Newtons per square millimetre. It is designated the letter "N".
Typical mixes used on a farm are 30N and 35N.
A 35N mix generally costs €2 to €5 more expensive than the 30N mix, however it is money will spent as the 35N mix is over 10% stronger than the 30N mix
A 35N mix should always be used for Constructing a Silage Slab, and consideration should be given to using GGBS cement in the mix.
Farmipedia.ie is intended as a handy reference point for Irish farmers.
All information posted here is for your information, however Farmipedia.ie take no responsibility for anything posted on this site.
If you wish to return to the Farmipedia.ie homepage, click on the picture of the bull shown on the top left corner!