Your browser is no longer supported

For the best possible experience using our website we recommend you upgrade to a newer version or another browser.

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

Veggie alternative

I was interested to read about 'Vegecol', the vegetable oil substitute for bitumen (NCE last week), and wonder whether its resistance to petrol is matched by its resistance to cowpats.

The leaching effect of cowpats on bitumen, very obvious on some country roads in Shropshire, did not feature in my technical education and seems to be unknown to many civil engineers.

The other, rather more important omission from your report, was an indication of price. And would its large-scale production reduce the crops available to feed the world's ever-increasing population, as does the production of bio-fuel?

NIGEL STURT (F), The Old Rectory, Pulverbatch, Shrewsbury SY5 8BZ.

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. Please note comments made online may also be published in the print edition of New Civil Engineer. Links may be included in your comments but HTML is not permitted.