Re-top (level) existing concrete


Old 04-09-17, 04:30 AM
Thread Starter
Join Date: Apr 2017
Posts: 4
Received 0 Votes on 0 Posts
Re-top (level) existing concrete


After re doing my house from plumbing to joist tc, it is time to fix my garage concreate as it is not level

I would like to belive I am a competent diy person and can do a relatively good work

My question is around the concreating as follow:

If I am covering an area of 3x4 meters , can i use paddle mixer to mix concreate 20-30 litres at a time? In another word, i don't have a concreate mixer so will need to mix and pour it myself

I am going to be lifting cars using the concreate base , so you see any dangers with topping up existing concreate?

Would you use concreate and sand or concreate and stone ready mixed just needing water?

Do you create a nice slope by using woods as a frame around the concreate? And adjust the depth and leveling as neede?

Highly appreciate your help
Sponsored Links
Old 04-09-17, 04:40 AM
chandler's Avatar
Banned. Rule And/Or Policy Violation
Join Date: Dec 2005
Location: USA
Posts: 39,965
Received 6 Votes on 6 Posts
Welcome to the forums! "Topping" off concrete is not done successfully. The new pour will release itself from the original pour, crack and eventually fail. How deep a pour are you planning on making?

Please fill out your profile so we can know where you are located. It helps us give you more detailed advice.
Old 04-09-17, 04:52 AM
Thread Starter
Join Date: Apr 2017
Posts: 4
Received 0 Votes on 0 Posts
Thanks for your reply

I am in the uk and need to level existing concreate

I am thinking of using bounding agent which is a water mixed cement to bound the two concreate

Re depth, i am not sure but a thin to mid layer so around 15-20 mm
Old 04-09-17, 04:56 AM
Group Moderator
Join Date: Mar 2003
Location: NC, USA
Posts: 23,954
Received 674 Votes on 623 Posts
First you would have to know why your existing concrete is not level. If the underlying cause is not fixed no thin layer of anything on top is going to last for long.

It sounds like your definition of a paddle mixer is a stirring big you put in a drill. The bit and a hand drill are totally incapable of mixing concrete. You could use a heavy duty drill at slow speed for mixing topping and repair mixes but not concrete.
Old 04-09-17, 05:17 AM
Thread Starter
Join Date: Apr 2017
Posts: 4
Received 0 Votes on 0 Posts
I means something like this

Erbauer ERB728MIX 1600W Paddle Mixer 220-240V | Paddle Mixer Tools |

The reason for not being level is the concreate has slabs on it which i smashed as I hate them

Is one way of finding out how much foundation existing concreate has , to drill and see how deep it is ?
Old 04-09-17, 05:27 AM
Forum Topic Moderator
Join Date: Mar 2005
Location: USA - N.E.Tn
Posts: 47,688
Received 330 Votes on 293 Posts
That type of mixing paddle is intended for paint and joint compound, not something heavy like concrete. I have used them to mix thinset and small amounts of mortar.
Old 04-09-17, 05:42 AM
Thread Starter
Join Date: Apr 2017
Posts: 4
Received 0 Votes on 0 Posts
This is what i need to level

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Ask a Question
Question Title: