Unsupported browser

For a better experience please update your browser to its latest version.

Your browser appears to have cookies disabled. For the best experience of this website, please enable cookies in your browser

We'll assume we have your consent to use cookies, for example so you won't need to log in each time you visit our site.
Learn more


  • Comment

Precast white concrete ceiling units at the Inland Revenue, Nottingham. Exposed 'architectural' concrete has been making a comeback after a considerable period out of favour. Much knowledge was lost during that period and it is hard to find experienced designers and contractors. A new generation will re-learn and take advantage of later developments such as the use of pigments, controlled-permeability formwork systems, and better understanding of the effect of curing on micro structure and hence weathering.

High-strength concrete at Taikoo Shing Cityplaza. The strength of concrete in buildings is increasing and 50-60 N/mm2 is fairly commonly used compared with 35-40 N/mm2, which is the norm, itself a big improvement on the 20-30 N/mm2 of 30 years ago. It is possible to achieve 100-120 N/mm2 on a ready-mix scale, but there is no demand in the uk because we do not generally build tall buildings. Maybe the cost equation will change. A possible inhibition is that BS 8110 only refers to concrete up to 60 N/mm2, but guidance on higher strengths is now available. Strengths up to 400 N/mm2 can be achieved in workshop conditions.

The macro defect-free concrete spring demonstrates the strength properties of this new form of cement.

  • Comment

Have your say

You must sign in to make a comment

Please remember that the submission of any material is governed by our Terms and Conditions and by submitting material you confirm your agreement to these Terms and Conditions.

Links may be included in your comments but HTML is not permitted.

Related Jobs

AJ Jobs