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SKATEBOARDING => DIY => Topic started by: lien 2 tail on February 16, 2009, 10:42:12 AM



Title: DIY quarterpipe assistance
Post by: lien 2 tail on February 16, 2009, 10:42:12 AM
Hey guys, me and a few of my buddies wanna build a concret qp, about 4' or 5' tall and about 4' or 5' wide with a "not too steep, not too melow" tranny at a slab we found. None of us have rally fucked with concrete before so if I could get some advice thatd be much appreciated, ive been tryin to find some shit on the interweb but im not so cratfy at "surfing" it. (Number of bags?, Framing? Filling? Curing?, etc), any of that shit would help a whole bunch. Thanks


Title: Re: DIY quarterpipe assistance
Post by: stewpidphuck on February 16, 2009, 01:07:56 PM
make a form out of wood first, it makes it much easier. fill with rocks and/or other filler. then you will need cement and trowels. mix the cement and then throw it on there. dont use the finishing trowel until its almost dry for smoothest results. your probley gonna need a lot of bags. play it by ear and you will get better down the line


Title: Re: DIY quarterpipe assistance
Post by: lien 2 tail on February 16, 2009, 01:34:54 PM
thanks buddy, so should we just use like a 2 x 4 to smooth it out till its almost dry? I also heard that you wanna mix the crete till its a mud like consistincey is that correct also? Keep em comin yall


Title: Re: DIY quarterpipe assistance
Post by: malinas on February 16, 2009, 04:15:37 PM
a couple things to know:
make sure to add as lease amount of water as possible, you want it really thick and somewhat dry( well mixed though).
you wanna buy a pool trowel, that's shaped like an oval or a trowel shaped like a triangle, get one that's a bout 8 inches long(metal).
yeah use the 2/4 as a guide to make sure everything is even and flush

here's some help:
http://s626.photobucket.com/albums/tt341/elpasoskateparkassociation/DIY%20bank%20to%20quarter/


Title: Re: DIY quarterpipe assistance
Post by: lien 2 tail on February 16, 2009, 07:58:15 PM
thanks malinas, those photos help alot. hypathetically speaking, if we wanted to use pool coping, would we set it with mortar or crete? Though i advised agaisnt it, my buddies wanna use regular ol metal coping, so would we set that first and then smooth the crete up to it? like i said guys, every bit helps, and i really appreciate it


Title: Re: DIY quarterpipe assistance
Post by: malinas on February 17, 2009, 12:16:33 AM
if you were to use steel coping, you would, weld rebar to the underside of it and then sink it either into the cinder blocks that you use as a back wall or if you don't stack a wall(though I recommend you do) you can tie them into your fill. and you should pack the pipe with hard objects that way the coping doesn't dent.
if you are gonna use pool block, you'll wanna have a flat surface to mount them. on that dick you'll want to brush on some concrete bonding adhesive and then make a mortar paste with some of the bonding glue mixed in.(once again make sure it's dry and then set the pool coping and push them in real hard and give them a few days and maybe add some more concrete to make the coping stronger on the ramp.


Title: Re: DIY quarterpipe assistance
Post by: colorblindbowen on February 17, 2009, 12:25:33 AM
a couple things to know:
make sure to add as lease amount of water as possible, you want it really thick and somewhat dry( well mixed though).
you wanna buy a pool trowel, that's shaped like an oval or a trowel shaped like a triangle, get one that's a bout 8 inches long(metal).
yeah use the 2/4 as a guide to make sure everything is even and flush

here's some help:
[url]http://s626.photobucket.com/albums/tt341/elpasoskateparkassociation/DIY%20bank%20to%20quarter/[/url]



Yeah, mix in water VERY slowly.  It depends on what you have to mix in.  In my experience, a wheelbarrow is good for about two bags, and in that case, get yourself a gallon of water and add about 1/2 to 3/4 of a gallon and start to mix that up.  Mix it really really really thoroughly.  Pretty much mix that until you have a blob of mud surrounded by dry cement.  Continue to add splashed of water while stirring, until you have a big blob of mud and no dry cement around it.  A friend of mine once said that it's better to have a dryer mix than one that is too wet.


Title: Re: DIY quarterpipe assistance
Post by: bailgun on February 17, 2009, 05:21:13 AM
^^^troof^^^if your mix is dry, you can always add water.
if its too wet, you're just fucked and end up with really brittle crete.

i had to learn the hard way by wasting money and ruining what could've been a cool little spot back home.



Title: Re: DIY quarterpipe assistance
Post by: lien 2 tail on February 17, 2009, 07:49:22 AM
are there any brands of concrete yall like, Quickcrete or what?


Title: Re: DIY quarterpipe assistance
Post by: colorblindbowen on February 17, 2009, 11:41:05 AM
That's all that I've ever used.  I've been told to add a shovel full of portland cement by some dudes.  I've done it both ways, and I can't really tell the difference.


Title: Re: DIY quarterpipe assistance
Post by: malinas on February 17, 2009, 12:53:48 PM
if you have it try spec mix.


Title: Re: DIY quarterpipe assistance
Post by: elastic back on February 17, 2009, 01:35:39 PM
dang, i tried answering this in the "help" section. should have looked here first to save myself the trouble. you all said everything i said and then some.


Title: Re: DIY quarterpipe assistance
Post by: stewpidphuck on February 17, 2009, 02:58:01 PM
also at the bottom it might be hard to get the concrete to stick to the ground. most likely the bottom will chip. after it naturally chips use some kind of bondo or smoother cement. if you dont know what i mean you will soon


Title: Re: DIY quarterpipe assistance
Post by: lien 2 tail on February 17, 2009, 05:52:45 PM
yall are helping a whole lot. we went out there today and low and behold...we forgot that there was a earthn filled pool with coping! so now we get to use that. I stopped by lowes and there was like 4 different types of quickcrete, fast set/ high strength/ crack resistant/ and "multi purpose. Any preferences? we still gotta shit load of work to do, prob about 2 weekends worth, and i think we might set the coping in first, unless yall think thatll cause a problem...oh ya and thanks EB your little description helps alot man.

Thanks fer puttin up with my stupidity, i wanna go into building parks life and this project will help get that shit in gear. Ill see if i can figure out how to post pictures and see what yall think

thanks again..every little bit helps, we wanna make this shit legit


Title: Re: DIY quarterpipe assistance
Post by: elastic back on February 21, 2009, 05:52:25 AM
I stopped by lowes and there was like 4 different types of quickcrete, fast set/ high strength/ crack resistant/ and "multi purpose. Any preferences?

fast set is good if you have to do it and jet real quick, but crack resistant is probably best since it will be bashed over and over with skateboards. good luck.


Title: Re: DIY quarterpipe assistance
Post by: fuckababiessoftspot123 on November 27, 2009, 01:48:29 PM
just get 4 bags of quikcrete and two shovels and another person and youll understand as you do it and itll work out. so pretty much, just fuckin do it


Title: Re: DIY quarterpipe assistance
Post by: bailgun on November 27, 2009, 01:50:32 PM
(http://i696.photobucket.com/albums/vv324/23satan666/dea004.jpg)


Title: Re: DIY quarterpipe assistance
Post by: concretewhore on January 04, 2010, 06:13:23 PM
That's all that I've ever used.  I've been told to add a shovel full of portland cement by some dudes.  I've done it both ways, and I can't really tell the difference.
portland makes it really smooth


Title: Re: DIY quarterpipe assistance
Post by: bailgun on January 04, 2010, 06:27:07 PM
That's all that I've ever used.  I've been told to add a shovel full of portland cement by some dudes.  I've done it both ways, and I can't really tell the difference.
portland makes it really smooth


Title: Re: DIY quarterpipe assistance
Post by: Ty Burns on December 10, 2011, 03:52:17 PM
some friends and i are trying to fix up a DIY quarter. it's pretty jacked (full of holes) but it looks like we need to just resurface it.
it's about 5 ft. high and 8 ft. wide, can anyone give me a estimate on how many bags it'll take and the type of cement?
Thanks


Title: Re: DIY quarterpipe assistance
Post by: Salamander on December 12, 2011, 09:46:08 AM
some friends and i are trying to fix up a DIY quarter. it's pretty jacked (full of holes) but it looks like we need to just resurface it.
it's about 5 ft. high and 8 ft. wide, can anyone give me a estimate on how many bags it'll take and the type of cement?
Thanks

If you just want a thin layer of something to smooth out the rough spots you can use "Cement All". Only problem with Cement All is that it's about $20 per 55# bag and that size of quarter will probably take 3-4 bags depending on how bad of shape it's in.
Is the quarter in a good location and worth the cost of repair?


Title: Re: DIY quarterpipe assistance
Post by: krusher on December 12, 2011, 08:32:11 PM
With cement all you really only want to use it in the cracks and divots. I wouldn't trust it as a long term resurfacer. To resurface (we have tried so many times at work) means to redo...

If you do use Cement all, pour stone or Rapid rock, it is best when you really work it in. Pour it, wait a bit, then work it and keep working it till it is dark and dry.

This is all you need if your damage is a half inch or less


Title: Re: DIY quarterpipe assistance
Post by: Ty Burns on December 13, 2011, 04:12:30 PM
The majority of the damage is just from the old 'crete crumbling away leaving the surface all rough and pockmarked. The biggest hole is getting to be around 6 or 7in.
With cement all you really only want to use it in the cracks and divots. I wouldn't trust it as a long term resurfacer. To resurface (we have tried so many times at work) means to redo...

If you do use Cement all, pour stone or Rapid rock, it is best when you really work it in. Pour it, wait a bit, then work it and keep working it till it is dark and dry.

This is all you need if your damage is a half inch or less
What I really need is a long term solution, is there anything you would suggest?


Title: Re: DIY quarterpipe assistance
Post by: krusher on December 13, 2011, 05:04:35 PM
You might be able to cut the bad part out and redo it.

We really need to see some pictures


Title: Re: DIY quarterpipe assistance
Post by: Frank on December 14, 2011, 06:38:50 AM
We've had some luck mixing some portland, sand and bonding agent together and laying it down. Some spots have been skated for 6 months now and are not chipping away or anything. It might not be permanent, but seems to work.


Title: Re: DIY quarterpipe assistance
Post by: Salamander on December 14, 2011, 09:10:37 AM
You might be able to cut the bad part out and redo it.

We really need to see some pictures

x2 on what Krusher said.^
Sounds like it wasn't done correctly from the first build. If you want to fix it good for long term use I would cut out the bottom so it's got a good 3-4" base and either pour a 3" layer right over everything and tie it in with rebar or jackhammer out the top layer and repour. Pics would help determine better though.
If it's just the base that's crumbling because it's too thin you can probably just bust that out nice and deep and repour tieing rebar into the old concrete and then just use cement all to patch up the few rough spots. I've found that if you paint over the cement all it will last much longer than if you leave it bare.


Title: Re: DIY quarterpipe assistance
Post by: Frank on December 14, 2011, 01:18:42 PM
What kind of paint do you use? I've skated some parks that have painted over graffiti and they all have become real slick. A bunch of folks want to paint in my bowl but I'd like to keep it from being too slick.


Title: Re: DIY quarterpipe assistance
Post by: Salamander on December 14, 2011, 02:48:41 PM
What kind of paint do you use? I've skated some parks that have painted over graffiti and they all have become real slick. A bunch of folks want to paint in my bowl but I'd like to keep it from being too slick.

I've used a Masonry, Stucco & Brick paint found at home depot. You can have them mix pretty much any color you want, it's about $20 per gallon. I have mixed feelings about putting a coat of paint on concrete though. It definately made the surface more slick but as time went on the surface is now perfect. Then again it made some areas slideable that were rough before. Only one way to find out.


Title: Re: DIY quarterpipe assistance
Post by: Ty Burns on December 14, 2011, 04:51:59 PM
okay, i'm gonna try and get the pictures this weekend.
you guys are helping a ton, thanks!


Title: Re: DIY quarterpipe assistance
Post by: Babe, Mr. Ruth if you're Nasty on January 06, 2012, 05:16:52 PM
What kind of paint do you use? I've skated some parks that have painted over graffiti and they all have become real slick. A bunch of folks want to paint in my bowl but I'd like to keep it from being too slick.

Use Flat or Matte paint. Gloss will make your shit so slick.


Title: Re: DIY quarterpipe assistance
Post by: john on November 30, 2012, 09:44:05 PM
So Ive moved to Vietnam and theres no tranny to be found. So now Im determined to make my own. Thanks to this site and others, i have the general idea down but was wondering if putting down the cement in sections made any difference. I want to start with a quarter but beause of getting supples to where ever i build will be time consuming ill probably do it in sections. will this effect my build? like transition one day, wall the next, coping or whatever else is left another day? thanks


Title: Re: DIY quarterpipe assistance
Post by: Nathan Murgatroyd on September 08, 2013, 06:19:16 PM
Might be a bit late but maybe you still wanna know or someone else might be interested :) when making a quarter pipe me and my friends always make the structure first (whether it be a pile of rocks how we used to do it or a wooden frame like we have been doing lately) and make the structure as close to what we want tranny to be, this allows you to use less crete (which is always a good thing especially if it's annoying getting it to the spot) and makes it a tonne easier to actually smooth it out as you have a guide, as for the doing it in sections part, you can do the structure entirely separate (e.g. it can dry and not effect the actual tranny or integrity) the face of the ramp isn't a good idea to do in sections (assuming you are making it a decent width) as reverts and any slide will get in the gap and slowly chip in away until it's a gaping hole (it's a tragedy trust me) I'm not sure how doing the coping and the face on separate days would work out, but I do know that (obviously (seems obvious)) you'll want to do the face last of all and set a decent ammount of time aside for it, you can end up (depending on size) sitting there for hours on end trying to get it perfect :)