I had a 7ftx10ft drive cemented 2nd April. When walking on it, feels gritty and when brushed up comes sandy/gritty stones? Did he use the wrong sand/cement mix or what? Is there a cement sealer I can use to stop this lifting? Weather was good so no frost or very wet. I am trying to understand 'why?' this is happening so that I can approach the man with some confidence when he attempts to blag his way out of things! Paid him £500. Thanks
I installed. Few concrete square area to a residential area last year using a ready concrete lorry and this year about a month or 2 ago they became dusty and stones kept coming off.
I would say it was a poor mixture! I ended up replacing the bay's out of my own costs and dos my own ballast/cement mixes and they seem much better.
Also I sprayed a chemical on the concrete while it was left to dry. DiChem VBA solution! It adds a kind of protective layer. Spray on concrete and leave for 24 hours and then jet wash off. It did cost me £216.00 but think it was well worth it!