2019 Highly Commended - Hawley Wharf, London

Concrete @ your Fingertips

Full list of Nuggets

Plucking of surface

This appears as surface material lost upon striking the formwork.

Normally occurs when the concrete surface is not of sufficient strength when striking the formwork. Could be due to cold weather, retarded surface, high cement replacement or a combination thereof.

Allowing the concrete to gain sufficient strength reduces the risk of its occurrence and is generally accepted as being 5MPa.

Acknowledgement: Concrete Society

Concrete Bookshop - Members receive 40% discount on Concrete Society publications

Visual Concrete: Control of blemishes