I have relocated the drainage and water in conjunction with moving the kitchen in the house. Now I'm going to fill in the hole in the floor slab (Erge concrete slab). Can anyone suggest what I should use for this? In total, it's about 1.5 meters x 30 cm and 10-12 cm deep that needs to be filled.
In the hole, there will be drain pipes + PEX pipes that are cast in.
Is it just a matter of buying "gjuta fin" at the hardware store or what should I use? EPS cement might be preferable?
In the hole, there will be drain pipes + PEX pipes that are cast in.
Is it just a matter of buying "gjuta fin" at the hardware store or what should I use? EPS cement might be preferable?
Last edited:
Know-It-All
· Stockholms län
· 822 posts
Here you might find tips: http://www.byggahus.se/forum/badrum/208866-gjuta-golv.html
I assume it's a crawl space underneath, meaning you don't have ground directly below?
The easiest solution is to use Rotbetong ARDEX A 38: http://www.beijerbygg.se/templates/BB_Produkt.aspx?id=61127
Fine concrete will probably work well, but I think expanding concrete (http://www.beijerbygg.se/templates/BB_Produkt.aspx?id=4139) would be even better. Regular concrete has a slight shrinkage when it dries, expanding concrete fills better in that case. However, you can't apply surface layers for a while with these.
EPS also requires levelling within a few days, and unfortunately, I know too little about its "self-supporting" properties to determine if it would be good in a hole of this type.
Did you have to cut much reinforcement? Then maybe you should consider doweling in (drilling holes and inserting) a few pieces of rebar as well.
The easiest solution is to use Rotbetong ARDEX A 38: http://www.beijerbygg.se/templates/BB_Produkt.aspx?id=61127
Fine concrete will probably work well, but I think expanding concrete (http://www.beijerbygg.se/templates/BB_Produkt.aspx?id=4139) would be even better. Regular concrete has a slight shrinkage when it dries, expanding concrete fills better in that case. However, you can't apply surface layers for a while with these.
EPS also requires levelling within a few days, and unfortunately, I know too little about its "self-supporting" properties to determine if it would be good in a hole of this type.
Did you have to cut much reinforcement? Then maybe you should consider doweling in (drilling holes and inserting) a few pieces of rebar as well.
Thank you for your responses! Yes, there is a crawl space underneath. Not much reinforcement needed to be removed, but I will reinforce along the channel/hole for safety's sake regardless.
Rotbetong Ardex 38 seems great in all ways! However, I read the product sheet and it says: "For laying elongated surfaces, the length should not exceed 2 times the width.". This doesn't fit at all where my length (1.5m) is 5 times the width (0.3m). However, it is a small area, so maybe it doesn't matter?
Rotbetong Ardex 38 seems great in all ways! However, I read the product sheet and it says: "For laying elongated surfaces, the length should not exceed 2 times the width.". This doesn't fit at all where my length (1.5m) is 5 times the width (0.3m). However, it is a small area, so maybe it doesn't matter?