Recent content by cement mason

No the sand should not rub off or out. Should be bonded around with cement. As far as cure I would use Ashford Formula. This is a cure not a sealer for top. I will tell you this This stuff will make your concrete hard. Probably the best I have used to cure and harden. Except for throwing trap...

Salt and pepper is grinding and polishing only exposing the sand, no aggregate (rock). Can make a nice looking acid stained floor after they get done. Yes will be smooth. They have different grits of grinding head and polishing pads. That 3000 bucks is on the contractor who screwed up I hope.

Look into the Ardex. Patch over unfinished areas with it. Using several coats to even up the ridges. Then polish with diamond polishing pads. I think you will be surprised. Guy I know works with big outfit just did this at big power plant along the Mo. river on a floor. He said it looked pretty...

Sanding will not get rid of bumps. Grinding will. There is a product by the name of Ardex to patch over the top of these areas or the coat the whole floor with it. Clean the floor well, trowel on a few coats of Ardex then let it tighten up, then use diamond polishing pads and polish the whole...

Couple of hours to put mud on the ground if trucks keep service on ya. That's about 20 minute spacing between trucks.(8 to 10 yard loads) So if they started at 8am mud was down by 10pm doesn't get dark say around 5pm. There is 7 hours of time (daylight) to be checking whether it is setting up...

Thanks for the welcome turbo.

what is square footage? When did they start pouring? I don't think enough light has anything to do with it. I think they didn't get a machine on it soon enough. if anything at all the person crawling the walls should been able to tell person running machine "Hey This is hard!" Because walls and...

That last pic looks like they just plain lost it. Even if it gets away from on the get go, float blades and a little water will usually bring right back. That just looks like someone don't have no idea of what the hell they are doing. Only choices I see are grind and polish, Pour a cap over top(...

Picture is bad. Are the dark spots the lumps. If so my first thought was floor peeled and someone tried to patch them in.

Again not real concrete. Adding another chemical to counteract the true ingredients of concrete. Def: A heavy, rough building material made from a mixture of broken stone or gravel, sand, cement, and water, that can be spread or poured. This is the key ingredients of concrete since the...

That's funny stuff right there.

As a third generation finisher who has been finishing concrete for twenty six years I can say that its hard to tell by pics. In the first pic it looks to like person who pulled straight edge never got the end of the board down to the line on the wood(straight edge is 80% of floor flatness)...