Instructables
Picture of Save water and reduce erosion
Getting grass to grow is hard sometimes but is necessary to keep your dirt in place so it doesn't wash away. With this porous paver you not only reduce the amount of grass you need to grow but drastically reduce the amount of water needed to keep that grass growing. On top of this, the pavers hold the dirt together reducing erosion even when the grass has not grown in. The pavers also allow for a large amount of weight to move over them, once installed, without the ground being as damaged as it would normally.

While my design is inspired by something similar, some very important changes have been made which focus on the molding process and make this unique. The parts have been made smaller. The reduction in overall height and size of the core blocks makes for less material used, and less digging when installing the paver. Likewise, the connectors are smaller, further reducing the size. The angles on the blocks and the connectors are not as steep and more uniform, making the end product easier to remove from the mold. The tamps on the end of the paver have been created with a negative angle - when upright - in order to facilitate precise spacing when installing the pavers to give a uniform look once the grass grows in. Most importantly, no wire mesh is needed to hold the cast piece together because of the material used to make the end product. This illustrates the true benefit of building your own model and making the mold by hand.
 
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JoLoveN8 months ago
I'm kinda lost on what this is for. Do you have pics of what you did with it?
astral_mage10 months ago
u can use foam in a can 4 this as well but u'ill need to work fast tho. for mold-able substrate materiel u might wanna go with paper mashey ( paper in a biodegradable paste ( flour an water mix)). that way yr gass will grow as well.
astral_mage10 months ago
use a full face respirator as well. so u dont get any in yr face. also use a full rain gear as well. soo u or a loved one can rinse u off after.
Some times known as "Grass-Crete" at least here in the UK, thank you for sharing your project.

You've done an excellent job of documenting it and a lot of the molding techniques are applicable to other projects. I do wonder however if you really needed to go with a two stage mold process for this application. I'm sure it could be done just as effectively by constructing the mold as a single female without the intermediate "glove".

Was there a reason for doing it the way you did? Was it just that you had the stuff on hand , wanted to explore your molding techniques, or is there a real TECHNICAL reason that this is a better way to achieve the final result?
Dave-T (author)  Dream Dragon2 years ago
Dream Dragon, thanks for the comment. The reason I went with the glove mold was: 1. To illustrate it so someone could use it, and 2. to keep the cost down (though the cost is high as it is). You are right, the mold could have been solid and it would work well. The mold did need to be solid or have a glove because the weight of whatever material you would pour in (to form your cast piece) would deform the mold and you would not get a proper casting. But it is funny you should ask because I am planning that for a follow on Instructable.
Chrystalkay2 years ago
This seems like a tremendous amount of work, but the end result will be smashing! What a beautiful addition to the landscape! Much more interesting than paving stones or strips.

Could you add some pictures later, when the grass starts to grow in? I would love to see it finished in the yard.
Thank you for such a comprehensive and inovative instructable!
Dave-T (author)  Chrystalkay2 years ago
Thanks Chrystalkay. It is quite a bit of work to make the mold but once it is done, making the finished pieces is very easy. I will post some pictures of the buried pavers with the grass growing in but it will be a while.
I'm looking forward to it!
This is so simple, so easy, it needs to happen more.