I am meant to be laying a new concrete floor today in my house to replace an old floor I dug up. I really struggled to find on the internet what gravel you are meant to use in the mix, but eventually ordered some "20mm" gravel and also some pea shingle - about 850kg of the 20mm and 250kg of the pea shingle to make up the amount of aggregate I need.
However, looking at the 20mm gravel the stones are a larger than I was expecting, picking up a handfull of stones these were measuring up to 40mm.
Is this larger aggregate going to cause me a problem in mixing the concrete for the floor? Appreciate any thoughts as I am due to start mixing in a couple of hours! For information, I am planning to use a 1:2:4 cement:sharp sand:gravel mix.
However, looking at the 20mm gravel the stones are a larger than I was expecting, picking up a handfull of stones these were measuring up to 40mm.
Is this larger aggregate going to cause me a problem in mixing the concrete for the floor? Appreciate any thoughts as I am due to start mixing in a couple of hours! For information, I am planning to use a 1:2:4 cement:sharp sand:gravel mix.