Cement

[SteveF]

i need to patch a small area of flooring indoors
had a water leak for months and the concrete was "crumbly" (is that even a word)
i removed the offending
hole is about 40mm deep x 100mm wide x 1000mm long

what do i buy from wickes \ screwfix for patching this please
so many choices

it will have underlay and engineered wood floor over it
had to remove about 30 cm of plaster from walls (well just render to be honest)along wall too....i will just put a piece of plasterboard as a patch and give it a skim
Steve

p.s. do i need to let this dry out fully first...only ask as i am just going to put wet cement on it

 

[blackrodd]

You don't say if the original floor has a DPC underneath.
Wickes do a small bagged patching sand and cement mix, it's not cheap,at about £7.00, but mixes well and easily in a bucket, has polymers etc so it flows and lays well and is very sticky and strong and is easily finished like a screed.
1 maybe enough for you. and it's what it was designed for!
HTH Regards Rodders

 

[porker]

I'd just use some rapid setting stuff in a tub for something that small. Follow the instructions exactly regarding water as this will maximise the strength when cured. If you are laying a wooden floor over the top I would ensure it is really dry before I did this and the rapid set dries quicker than most. Lay a bit of plastic sheet over and see if you get moisture underneath to see if it is fully cured. I would also redo the wall with sand and cement render particularly if it is prone to getting wet but I guess it won't be once you have the new floor down and then a skim of finish. Hardwall is an easy to use backing render rather than using plasterboard.

 

[SteveF]

You don't say if the original floor has a DPC underneath.
Wickes do a small bagged patching sand and cement mix, it's not cheap,at about £7.00, but mixes well and easily in a bucket, has polymers etc so it flows and lays well and is very sticky and strong and is easily finished like a screed.
1 maybe enough for you. and it's what it was designed for!
HTH Regards Rodders

dpc is visible and seems undamaged where i removed the crumble


i have a £450 excess on house insurance so a few quid for a self repair is minimal
i have to admit it destroyed more than that in previous flooring costs but such is life
i wanted a new floor anyways

Steve

 

[blackrodd]

You don't say if the original floor has a DPC underneath.
Wickes do a small bagged patching sand and cement mix, it's not cheap,at about £7.00, but mixes well and easily in a bucket, has polymers etc so it flows and lays well and is very sticky and strong and is easily finished like a screed.
1 maybe enough for you. and it's what it was designed for!
HTH Regards Rodders

dpc is visible and seems undamaged where i removed the crumble


i have a £450 excess on house insurance so a few quid for a self repair is minimal
i have to admit it destroyed more than that in previous flooring costs but such is life
i wanted a new floor anyways

Steve

You probably know, anyway,
If you use a concrete type mix be careful not to damage the DPC with any sharp stones or agregates
but at 40mm, I can recommend that patching stuff, it's really good and strong.
Regards Rodders