Cracks in concrete driveway

[robby71]

We have some long cracks in the concrete driveway leading to the detached garage. These have been there for several years but during winteres they seem to be getting slightly worse.
The driveway is the rough concrete (sort of racked effect side to side which helps with grip in the snow) and i'm wanting to fill these cracks in.
I've seen some ready mixed (just add water) solutions which would be great for a novice like me but they're all in the grey colour and i can't find any in the buff concrete colour
Do i buy the grey and add sand (if so which sand)? or can i buy the buff (sand colour)?

Thanks

 

[^woody^]

You won't get a colour match, you won't get the crack to blend in, and you won't even stop it cracking again in the future. So it probably does not matter what you use. But yellow sharp sand and not building sand is required.

 

[robby71]

Thanks for the reply
Should i use some sealant topped up with sharp sand to bridge the gap as best as possible? i was thinking this would stop large amounts of water settling in the gap during winter and contracting when it freezes causing more damage?

 

[^woody^]

Thanks for the reply
Should i use some sealant topped up with sharp sand to bridge the gap as best as possible? i was thinking this would stop large amounts of water settling in the gap during winter and contracting when it freezes causing more damage?

I would not worry about that as it is not a significant issue. Water will get in regardless,

A cement slurry can be poured in if you wanted to fill the void, and then for a finish, the crack could be widened at surface to accept the sand/cement finish. But either way, it will be visible. So perhaps just a cement slurry poured in and then brushed off.