didi.kid Blossoming FBHQer
Posts : 184 Join date : 2013-04-24 Age : 26 Location : Portugal
| Subject: (Help) Concrete problems Thu May 14, 2015 9:53 pm | |
| Hi! So as you may or may not know I do concrete ramps in my free time. Till now most of them turned out nice and strong! But lately some of them have been coming out visualy gorgeous but after a while making pressure (not much cuz i'm weak af) some of them split ... so yeah ... (Oh! I don't do the pressure test right ahead ... Usually I leave the concrete 3 days in the mold + 3 days out of the mold before sanding it and give it one more week to settle up before testing it. So about 2 weeks since the inicial mix .) So what have I possibly done wrong? Also , summer is coming and I don't know if that affects the way the concrete dries ... I let the ramps drying in a garage so they are kinda protected but should I hidrate de cement or something like that? Anyway , hope anyone can help me Thanks! P.S- Cement and concrete for me are kinda the same thing ... what I use is the one with no sand. Can't find rockite in here ... not sure about how it's called here ahahah |
|
jimydave FBHQ Beginner
Posts : 91 Join date : 2015-01-23 Age : 23 Location : woodstock ny Companies : cad/3d printing service - pm for details Setup : woob cozy
brt
ff dual durro
| Subject: Re: (Help) Concrete problems Thu Jun 04, 2015 12:34 am | |
| not quite sure what's causing this, but with rockite or fast setting cement, you will never have to wait that long. it dries rock solid in a few hours!! I believe that mike puts pieces of rebar inside the klotz blocks to reinforce them. you could try that, with threaded rod or chicken wire/other wire mesh. As for finding rockite, it might be possible to buy online, haven't checked yet, but you could also look for "anchoring cement", "patching cement" or "countertop mix". |
|
didi.kid Blossoming FBHQer
Posts : 184 Join date : 2013-04-24 Age : 26 Location : Portugal
| Subject: Re: (Help) Concrete problems Sun Jun 14, 2015 5:51 pm | |
| |
|
Sponsored content
| Subject: Re: (Help) Concrete problems | |
| |
|