Browse Forums Paving & Concreting 1 Nov 30, 2009 11:02 pm After some information. I am building a house with polished concrete. The slab has been polished but has not been sealed. I was told by the builder it was necessary. The slab now appears to have small holes all over it and has some cracks appearing. It was 32 mpa concrete poared with specialy to be polished. Should it be sealed? Are the holes normal? Appreciate some advise. Re: polished concrete 2Dec 01, 2009 9:55 am Who is doing the polish job? Pin holes or air entrapment is usual... But then a grout is used to void fill. Where abouts are you? Where you are coming from is where you are going to... Re: polished concrete 4Dec 02, 2009 8:06 pm Jas you crack me up... Nah never work.. and now I am on holidays you will see me less Have fun crew just scoffing a few prawns the crabs are cooked and waiting to cool Where you are coming from is where you are going to... To my understanding early saw cuts are to control shrinkage cracks, so doing them now would be pointless. Control joints may reduce ugly cracking during periods of soil… 3 9857 Hi all I need a guidance on how far I need to space expansion joints in the concrete driveway and its type (keyway/foam.) Contraction joints are at 3m max for a 125 slab. Thanks 0 10939 |