Browse Forums Building A New House Re: Inspection for slab down? 5Jan 15, 2010 8:36 pm Where you are coming from is where you are going to... Re: Inspection for slab down? 6Jan 15, 2010 9:53 pm onc_artisan 80 slump is sufficent to pour, adding water to keep the slump at 80 is all that is needed. P!ssing it up(concrete term) is only done to speed and ease the process of placement. Overslump is the MAIN cause of shrinkage cracking, NO CURE method is the second most popular reason for cracking. A slump of 95 is not in anyway good for the longevity of the slab. Thanks for the update. I agree that not adding water is far better. But 95 is considered in spec, and we had trouble keeping the concreters to this (almost returned a truck - it got a second slumpt test and passed). I know there are arguments that the manufacturer sets the mix and it is ready to pump/pour. We were only adding a couple of Liters per truck. However my sugestion is, without a certified tester/moderator the slump can go way past 95. If you require no water with a project home builder, I think you will have them walk off - they are use to spearding water not concrete. While 95 is not in anyway good for the longevity of the slab (agreed), it is far better than 100+. The other issue with many project home builder is that you are not contracting the concreters, and I understand that you can realy only threaten them with - if it goes out of spec the slab comes up or truck goes back. These concreters are also not used to dealing with customers and did not like being told what to do. Anyway, this is my experiance with the project home builder. We got a good strong slab in the end, and that is what I wanted. A bit of a rant I know i would suggest nothing is unreasonable for PCI. we did all sorts, including checking the hot water, checking all the GPO's had power, testing that the showers were… 9 98695 you need to understand the breakdown of warranties. 90 warranty is considered as minor defects rectification period where as the longer ones are more major/structural… 1 5351 Hi, I have this sewer inspection point sitting in an odd spot in the rear of my yard: https://imgur.com/ghLI98q What I'd like to do is put a firepit in that corner of… 0 6533 |