03-11-2022, 02:32 AM
A couple of things I learned when we poured our slab:
1. You need water. In our case we were able to use the neighbors hose/water. They need it for various things such as cleaning tools, washing things that aren't supposed to have concrete on them, etc. You will want it also, which brings me to my second point.
2. They will need a place to dump "waste" concrete. We had a pumper. They pump a small amount onto the ground before they actually start putting it into the slab/form area. If they are good, they will only have a little bit left in the hopper at the end of the pour, but they have to empty the hopper and clear the lines when they are done. It's a fair amount, picture two 55 gal drums worth or so from the pumper truck. I was able to get rid most of that by having them put it in a low area that I was going to cover later with gravel.
Whether you are pumping it or not, each concrete truck has to clear their truck of leftover concrete as well. This stuff isn't as bad since the driver will have a hose on his truck to spray it off. This dilutes it quite a bit but it doesn't hurt to spray more water on it to really thin it out if it's in a place you don't want chunks of busted up waste at the end.
Bottom line, you will need a place/plan to get rid of it. Be aware that this will happen, because unless you tell them up front, they'll put it where they think is a good place, which may or may not be where you think is a good place. One of the truck drivers cleaned his truck right next to my hand selected pile of lava rocks, splashing concrete onto them. I didn't blame him. Hey, they don't know. "It's just lava. They whole island is lava".
1. You need water. In our case we were able to use the neighbors hose/water. They need it for various things such as cleaning tools, washing things that aren't supposed to have concrete on them, etc. You will want it also, which brings me to my second point.
2. They will need a place to dump "waste" concrete. We had a pumper. They pump a small amount onto the ground before they actually start putting it into the slab/form area. If they are good, they will only have a little bit left in the hopper at the end of the pour, but they have to empty the hopper and clear the lines when they are done. It's a fair amount, picture two 55 gal drums worth or so from the pumper truck. I was able to get rid most of that by having them put it in a low area that I was going to cover later with gravel.
Whether you are pumping it or not, each concrete truck has to clear their truck of leftover concrete as well. This stuff isn't as bad since the driver will have a hose on his truck to spray it off. This dilutes it quite a bit but it doesn't hurt to spray more water on it to really thin it out if it's in a place you don't want chunks of busted up waste at the end.
Bottom line, you will need a place/plan to get rid of it. Be aware that this will happen, because unless you tell them up front, they'll put it where they think is a good place, which may or may not be where you think is a good place. One of the truck drivers cleaned his truck right next to my hand selected pile of lava rocks, splashing concrete onto them. I didn't blame him. Hey, they don't know. "It's just lava. They whole island is lava".