How to fill gaps in concrete

twochicks

Hi all, so I made a concrete table top for our outdoor area. The issue I obviously had the mix not wet enough and there are large gaps. 

At this stage I don't want to make again but try and salvage what we have. 

Any ideas on how to fill the gaps? 

Thanks

MitchellMc

Welcome to the Bunnings Workshop community @twochicks. It's fantastic to have you join us, and many thanks for your question.

It would really help our members provide some excellent solutions if you would like to upload the tabletop's image and the gaps you want to fill. I suspect you'll need to use a product similar to Prep 750g Watercrete Multi-Purpose Patching Cement. However, there is a chance that it is a different colour from your original mix and will be noticeable as a filled area.

You could wet the table down and then use your original concrete mix to fill the gaps. The aggregate can be sifted out of the mix if it is too large to fit into the gaps. You can paint some Bondcrete into the gaps and let it dry before filling it with the concrete. That will help the new concrete bond to the old.

Depending on what these large gaps/cracks look like, you might fill them with oxide tinted cement, which perhaps could become a feature.

I look forward to seeing some tabletop images, and please let me know if you have any questions.

Mitchell