As it stands now, even a 20% improvement will satisfy them. Id prefer to avoid power tools and stick with as much a natural look as possible. Great! It looses its gravel texture, it just ceases to be gravel.looking like a cross between a rice crispy teat and black-topbut looking nothing like a gravel walkway. HATED IT!!! The article above addresses flagstone joints in a dry laid applicationwith a gravel foundation. In my experience however, that was a rare exception to the rule. The cut-off sentencewas just a bit of text that I edited out, then added back in, nothing was lost, it was just a redundant half sentence. Pea gravel walkways are relatively low maintenance. And dont use salt either. We have been using an imported heavy clay loam soil to pack and set the flagstone on, which itself sits on native gravel. Having said all that, I still prefer to fit pattern flagstone more tightly, quarter inch to eighth an inchon a recent 400 square foot patio that we built we had eighth inch gaps.. Thanks! I used screenings to fill in between the joints. Good luck! I do not know where you are located, but here in Pennsylvania we have the freeze-thaw cycle, which would be a problem if you are using something rigidlike grout over top of something flexible, like stone dust. Get a product called gravel lok or a pebble binder product use them a lot they work great. Effort PA. Southern Poconos. What is the best order to correct an incompleted project gone awry? A bit of a philosophical question, really. I really don't know what I'm doing so any tips are appreciated. Will this work to fill the cracks of should I attempt to find a finer material? (stabilizing the bed to lay on?) If I fill joints with decampoused granite, can I pressure wash flagstones? A gap that small can be left open. I live in NW Montana and have just put in a flagstone circle surrounding my fire pit. Im glad I read this and plan to steer well clear of polymeric sand. Please and thank you, Freddi. Water concrete or mortar is bad because it may seem solid, after it sets upbut it set up watery. https://www.envirobond.com/professional/envirosand/, https://www.landscapeandgarden.com/gravel-decorative-rock, then level them up one at a time using screenings, checking out the dry stone wall that supports the sphere installation, full preview of the calendars | new process video. Also, I just placed about 4 of them to see how it might work. What did I do wrong? I think that any crushed stone with a good variety of sizes would work. If you wanted to email me photos, then I could do some research, and then I could advise you. You should end up using about one inch thick of screenings on average, in order to get your flagstones all level with each other. We have reorganized some very large flagstone to make a better usable patio space, but because of the stones we have to work with and the lack of budget for acquiring new stones, we have some gaps that are rather large perhaps 3 in some places. Stone would have to be of appropriate thickness, outdoor adhesives/exterior thinset used for the ornaments. Decomposed granite is the same thing. Third potential remaining problem area as I see it is bedding sand depth. The location is climate type 9b, Northern California. Not polymeric, it doesnt harden. the concrete is cracking, stones around the edges appear to lifting. There's this product called Gravel-Lok that you can mix in with your gravel and it kind of glues it in place. I removed the remnants with a strong hose stream and I purchased stone dust to refill the joints. Using pavers, like TRUEGRID pavers, to stabilize your pea gravel walkway is another option. Take a sprinkler and wet it down , it will tighten it up , still be looser stones on top. When theres less traffic on the actual gravel, it wont shift and spread so easily. And this is purely speculative on my partdo not blame me if something goes wrong. Againdo not spray round-up or any other poison unto your patio. Still, this stuff is what you are asking me for. Then the 2 kinds of stone were mixed and compacted, I can't remember if the crew used rakes or the Dingo. Grey stone dust screenings will cost about 40-50 per cubic yard. Most solvents that will actually remove it will probably also stain the pavers anew, so theyre out. Now about weedswhat can I say? I never use sand, I use stone dust as the leveling agent and joint material, compacted road base gravel as the foundation. Keeping the gravel in-place seems to be a full time job. My contractor installed decomposed granite flagstones in our patio and we have been having been having major issues with all the DG coming out between the cracks. I want to use decomposed granite or a similar natural product, other than sand, that is tan in color instead of grey. Check out http://www.stepables.com Then again, if you wanted to plant regular moss (not irish moss, which isnt a actually a moss) then you wouldnt even need to add any soil, as the moss will readily grow right on the stone dust joints. Or how to deal with it? Privacy Policy. Filled with stone dust and in order to keep the gaps looking regular we only had to re-cut a few of them to correct the factories imperfect cutting. how to move heavy stones without machinery, field stone walls and dry stone steps in Honesdale Pennsylvania, A couple of 5 gallon buckets (for stone dust, when leveling stones).shovel, wheel barrow..4 level. Required fields are marked *. I have written an article that discusses whether to use sand, cement or gravel for in between you flagstone joints. This can wreck the flat surface you are making. Have written about replacing mortar joints in a couple of articles. Sure, but not forever. The cement coats the peagravel and gatehrs at the contact points. He hosed and tamped the joints a couple of times, and Ive hosed them a couple more times since. Scrub with the broom a bitthen hose off. Remove the mortar with an angle grinder and chisel/large flatheat screwdriver. Having the right mental approach and recognizing each stone needs a slightly different fix is key. Is this just added polymer binder (plastic)? In reality, nothing is impossible. Not too wetjust wet enough to be sticky. To decrease the gravel carried away by any runoff, you can also add drainage trenches to your pea gravel installation. If not, then Id grab my oxygen/acetylene torch. This can make the stone slippery and change its appearancewithout providing any benefit. A site visit could be arranged, if necessary. You could a) hire a professional. From reading the MSDS it appears to be a resin that forms a binding polymer unpon activation. adding polymeric sand to pea gravel can help keep the gravel in place. Here in Pennsylvania, we have a lot more rainfall that you in California, also we have a freeze-thaw cycle. My customer wanted no transition between the pool and the patio..so instead of normal coping, we set irregular flagstone along the edge of the pool wall, creating mini concrete foundations for each stone, where it overhung the wall. If the flagstones shift underfoot then you are going to want to get them stable first, before planting anything between them. They say I mixed the cement wr. Hey Jeff. With stone dust the most you have to do is top of the joints every once in awhile. I cant recommend a particular company as Ive only stalled the stuff a couple of times. The fines play a big role in keeping the joint material in-between your flagstones. 2 or 3? To avoid getting the screenings all over your flagstone patio, just aim to have the joints filled to about one eighth of an inch from the stones surface. We got heavy rain and its very wet and now some of the stones move and are sloshing around in the stone dust there are no pools of water but its really soft and the lots of the stones move and almost slosh down when stepped on. That would take a bit of my time and consultation fees would be applicable. I used baking soda on my patio to kill weeds. Seems OK but I just tried this this weekend so don't know how it will hold up to light foot traffic and our large dog. Were in the process of installing flagstone with decomposed granite, my contractor just suggested to use polymeric stone dust to fill in the spaces in between the stones, he thinks its a better option for the reasons you discussed above. But d-limonene does dissolve a few types of plastic, so I am thinking that d-limonene with a wire-brush just might do the trick. Be sure to hose off and dont let muriatic acid sit long, as it can deteriorate the joint materialmuriatic acid eats cement. Stick to plain stone dust is my advice, and keep the joints tight! Great article Devin, We have large slabs of Indiana ledge rock some as big as 30 sf and 4 inch thick around our pool laid with 1/4 inch tolerance laid on sand with sand between the stones sme have shift and opened gaps and tilted Its impossible to fix without big machines so I am planning just to stabilize it Screenings the best? The more activity that occurs on top of the gravel, the more likely it will become displaced when someone walks on it. But thought maybe someone had anecdotal evidence that it could work so I don't have to clear out all of the gravel before adding the poly sand. Screenings are heavier than regular sand, thus theywill not wash out quite so easily. In the shady area moss will grow in the screenings, in the sunny area, maybe not so much. What do you think? I have 3-4 inches of compacted base on top of clay, then 1-2 inches of stone dust and 1.5-2 inch thick limestone and it slopes toward the drain and off the patio maybe an inch every 4 feet. Then I pound that stone down, using a deadblow type mallet. Id look for pathway fines/stone dust ect though, as dg is usually the most expensive variety of stone dust. Bu the crumbly dry method works well, you just have to spend some time cleaning off the tops of the stone, whereas the powdery-dry method involves pretty much zero clean-up. Ill Probably go with your suggestion of screenings or DG. A gap much wider than half an inch will become a minor puddle spotand that water will go down into the ground. Clay subsoil can compact and sometimes stay fairly stablebut usually, it will settle and heave over the years, sometimes leaving you a fairly level patio, just with a bit of character. remove it and install 1 1/2 size river rock. Video of the Day. I had a flagstone patio laid 2 years ago. If you want individual advice beyond that, I also offer phone consultations! Prices will vary.but so long as youre able to finish while only renting the tools for a day or 2, then you should come in on budget. Though it may require some maintenance, down the road. You can do it. Devin, what do you think of adding a small amount of cement to stone dust to make it a bit more solid ? 3. I prefer to keep them tighter, but 2 is doable. Here you can buy grey gravel, red gravel and cream colored gravel.stone dust is available in those very same colors, because stone dust is graveljust smaller. stone sphere sculpture in Walnutport Pennsylvania, built September 2020. For more information, please see our Its 3/8 in size, and says with finesthats what you need. In short: sweep the stone dust into the joints, hose down. What would be recommended to use for joints between flagstones 2 and greater? If you do not have any orange based cleaner, then try using a bit of vinegar along with the wire-brush. Great information. Tree limbs, leaves and mud can end up on the driveway. Boil a pot of water, to kill weeds. You can also sprinkle cement over gravel to reduce sliding and shifting. Hi, the home we own in Colorado has a really large flagstone patio but the previous owner never put in any fillers. I have in place 30 year old clay brick patios and walkways. I have patio pavers with gravel between pavers instead of polymeric sand. We do have what is called shaker sand which is a combination of sharp sand with some pea gravel mixed in (pea gravel that was smaller than normal and was screened out from the normal pea gravel. Thought taking up and adding base rock under but that is a ton of work. This is like cooking a fillet mignon, using the methods and seasons you learned by working at mcdonalds. It is just what I was after and while the pea gravel has the "look" it does not have the stability. I have a small home-based dog boarding business and it works great. Dry laid is hugely my preference, in any place with a freeze-thaw cycle. I would not recommend sand for in between flagstone joints. Fact is that you simply can not use polymeric sand as a replacement for taking your time and doing the job right. So I use a 4 foot level. What did I do wrong? Bear with me here I dont know a lot about it but have you ever thought about using glass marbles, crushed glass, fish tank gravel in a more vibrant color something that would be a little more creative? I have 3-4 inches of compacted base on top of clay, then 1-2 inches of stone dust and 1.5-2 inch thick limestone. The industry standard for flagstone installation these days, is still basically to use the methods, tools and materials used in concrete paver installation and adapt them to natural flagstone. good luck and let me know how it goesmaybe you can teach me something on the subject , Hi Devin, your blog on polymeric sand was very helpful. We are getting ready to install a flagstone patio a step down from our front porch. Or plan a ground cover of some type. Just hose the patio down real well. White screenings are made from limestoneand crushed limestone has a bad name, in the hardscaping industry, because it tends to hold water. You want to go maybe 1 deep and maybe 1/2 wide. I want to avoid mixing cement/morter because I think it would create a drainage issue.Will just keep at it until I find a solution, which in the end may be taking up all the pea gravel and starting from scratch!Maybe someone out there has had the same problem and came up with a perfect/near perfect solution and will post.Murphy. More importantly, are you overfilling your joints? I use, and recommend a stone dust joint, for dry laid flagstone applications. Please advise what to do. When gravel shifts, it can expose the weed cloth underneath, letting weeds overtake the edges of your gravel walkway or driveway. Anyway, I would like some advice on how you achieve such tight joints. Quikrete Gray Sand/Topping Mix 60 lb. Due to the irregularity of the stones the cracks are from 1-4 wide. This will allow you to enjoy your stabilized pea gravel for years to come. Have you seen this used with travertine tile in an outdoor pool deck in Florida? To help stabilize existing pea gravel, pour these solutions on top of it, allowing it to dry for at least 24 hours. The gravel was solidly stuck together. The stone yard actually recommended polymeric sand, so I came home and found your website, thankfully. Your Thoughts are? Hammer and chisel and/or angle grinder may be needed.but for a dry laid patio just with mortar in the joints, a flathead screwdriver will often be all that you need. If there are a lot of weeds present, you may want to add a barrier of landscape fabric between the base rock and the pea gravel. Hose the joints down, on shower setting, sweep off the excess, if you want you can use blower to remove more excess stone dust. Tamp the soila hand tamper that you buy at the hardware store will work just fine, a plate compactor will spare you the strain (rob you of a good work-out.Ill be honest, a very good work-out. But the breeze material is still not stable, which means it is impossible to sweep the room clean. I presume stone dust is finer than crushed granite, yes? Good. And the answer is alwaysmake them flagstones fit tighter! Btw I am also in NEPA. Stone dust/decomposed granite would work well in the dry months, but in North Californias rainy season..Im just concerned that the trenches have concrete at the bottom, so the stone dust would have no way to dry out, for months at a time. com should give you all the help you need in this regard. Good luck with your flagstone project I hope that my articles are helpful. Binding agents like plaster, polyurethane, or epoxy coatings are also good ways to stabilize new and existing pea gravel. Yes I have run experiments oin differenat areas of the patio and have used different amts of water with the same results. It would drain away but I assume some of it may get tracked into the pool. Fly me out there and Ill make em fit nice, get some local ahem pro to do it right or maybe try some ground cover planting. This mix is damp enough that it clumps together without needing to be smooshed together with the trowelbut just barely: https://www.devineescapes.com/replacing-the-cement-between-flagstones/. I then took a blower and carefully blew away the very small amount of dust that accumulated on the open surface of the flagstone as a result of the vibrating process. Or falling matter from nearby trees can help cause that. Thanks, JoAn. To find itId call every landscape supply place in the tri-county area, every masonry supply place, maybe try the quarry and see if they dont have a minimum purchase order.Once I had both yellow barr sand and limestone screenings, Id mix them together till I got the right color, perhaps adding some brown barr sand (masonry suppliers will carry it) or gray screenings into the mix, if it was turning out too light. Am thinking that doing this with decomposed granite is something that I could pay my fireman son to do in his off days. The smaller stones seem to have the problem of being dislodged and end up on the flagstone ouch. My process is described in this article: how to fill flagstone joints. What I do, is I add just enough water to my mortar so that it will bind together, when pushed down on, with a trowel: https://www.devineescapes.com/flagstone-walkway-re-pointing-repair-paoli/. I sent him your article about using quarry dust. Plus, Ill answer short and sweet questions here on my blog, of course. The tile company probably makes a rubber underlayment that youll want to lay on top of the 1/4 minus. Once thats in, you lay out the flagstones and then level them up one at a time using screenings. One web site even suggests a 1/3 dry portland cement/breeze mix, to then be gently soaked with water that would harden up. This can trouble novices and pros alike. Or 1/4 inch minus gravelof all the synonyms used so far in this article and in the comments, youre the first to bring up 1/4 minus gravel. Extremely helpful. Properly installed, rain washing the decomposed granite out from in between the flagstones should not be a problem. Devin, Thank you for the excellent article. You can purchase products like EasiHold or Gravel-Lok, or other epoxy coatings. Cool, Im glad that worked out from youand Ill use those two flagstone photos, for next time someone asks a similar question. Ideally, wed have a slope of 1/4 per foot/ 1 over 4.so with a four foot level, you should be able to gauge the pitch and see if you are anywhere close to one inch of fall over four feet. On the note of odor, there are products you can hook up to your hose pipe to breakdown dog waste and odors. I had thought pea gravel would look great, but I was scared off by the instability issue. Its liquid plastic, alright. The good thing about stone dust is it is just barely bound up, with the stone fines. I have a flagstone walkway with the stone separated by 3-4 inches (anything closer would be considered an impervious surface and restricted by zoning due to coverage restrictions so nothing to be done about that). The manufacturer recommends clean gaps of just polymeric sand. Lay the 2x down on top of the trench and hammer down to tamp. Podcast 529: Members-only AftershowHow Good is Good Enough? The PO had installed pea gravel in the planting beds; in some areas it was more than 4 inches deep--I hated it. It should be evenly distributed across the surface and cleared of all debris, such as rocks, sticks, roots, and weeds. We live in Ontario and I am almost done with my flagstone landing. I live in Texas with the soil is mixed clay and moves a lot. 1. The stuff I used came in 5 gallon buckets. Stays slightly flexible so it doesnt crack ((yes.it cracks, sometimes)). This more or less turns your stone dust into polymeric sandand you know the risks involved with that. Good question. See the above section about adding proper drainage to make sure you can handle any potential flooding issues. About ground cover for in between your stones.theres a few good options out there, like Irish moss (not really a moss) and thyme and others. Good luck! It leaves a nasty haze all over the place, and is overall a wasteful, expensive mess and a disappointment. The next step is to install the base. Wanted to check with you the cheapest way to do it under 2K if possible? Im not a big fan of sealing flagstone or color enhancers. It just doe not look right, does not at all have the look and feel of real gravel. Thanks for your help, George. Will they all sink to the bottom over time or will the constant tire traffic keep pushing the larger stones back in to the fines, keeping things firm? see if it works. If the flagstones are slippery then yeah you might have a more serious issue than that, but usually my clients dont really opt to feel like they need to pressure wash once a year. Scroll half-way down on this link and find the section with the heading How to install stone dust in between your flagstones Sometimes people overfill their joints to begin with, then wonder why they have material spilling out onto the patioaim to have your flagstone joints filled to about an 8th of an inch lower than the top of your flagstones. Wanted advice for DIY backyard basketball court of size 42 feet wide and 28 feet long. Each stone is leveled up, one at a time, with varying amounts of bedding material, as needed. Any idea where we could look for some advice? I probably have to use cement or glue a small six-inch piece in front of the cinderblock for visual appeal. Metal is more durable, but no matter what border you choose, it should be at least 1/2 inch above the ground outside the perimeter. The decomposed granite in the second link also looks right, but it will probably cost more. (P.S. This is hard for the dogs to walk on (sharp edges). I was planning on Breeze but hear it will be tracked into the house and wash away. The first option that I gave will not keep 100 percent of the gravel in placebut most of it, yesand if you remember to use modified gravel, gravel with smaller chips and stone dust in it, then it should feel pretty sturdy underfoot. Screenings are not the same as polymeric sand. This sounds like an ambitious project. Im in Tucson AZ and have a very large flagstone patio that is 15 yrs old and is showing many cracks in the mortar grout. ( said with a Japanese accent):). It also creates a creamier, stickier mix that a lot of guys prefer. A forum community dedicated to lawn care and landscaping professionals and enthusiasts. You need a foundation of compacted road base gravel. Hi I wish I could afford to hire you! If it were me, Id repair the existing patio with mortarand then probably do the additional 10 dry laid. Would appreciate your thoughts! More bound than say loose pebble, but less rigidly bound than any plastic type material. My suggestion to him is steam clean, which is said to remove haze and some joint material too. Is this stone in question local, or otherwise desireable to you? I wish I had read the forum BEFORE listening to the landscaper. Weve been building an Idaho quartz stone (2.5 d medium & smaller size flag stones) patio. If the steep grading and the wide gaps both need to stay like this, then Id plant a ground cover in the joints. Theres also some mention of stabilized decomposed granite. A wire-brush plus a lot of elbow grease will often remove much of the hazewill rarely get it all though. Proper drainage to make sure you can mix in with your gravel walkway is another option to. Seems to be of appropriate thickness, outdoor adhesives/exterior thinset used for the dogs to walk on ( edges... Base rock under but that is a ton of work times since just added polymer binder ( plastic?... Used different amts of water, to stabilize your pea gravel at all have the.. You need sunny area, maybe not so much creates a creamier, mix. Different fix is key joints with decampoused granite, yes the concrete is cracking stones! Any benefit called gravel lok or a similar natural product, other than,! Small six-inch piece in front of the cinderblock for visual appeal section about adding drainage., polyurethane, or otherwise desireable to you than half an inch will become a minor puddle spotand water. Your suggestion of screenings or dg to reduce sliding and shifting nearby trees can help keep gravel... And sweet questions here on my patio to kill weeds in-between your flagstones to! And install 1 1/2 size river rock is like cooking a fillet,... Have patio pavers with gravel between pavers instead of polymeric sand your hose pipe breakdown. A freeze-thaw cycle some advice on how you achieve such tight joints traffic on the flagstone ouch year clay. Still, this stuff is what you need a foundation of compacted base on of. Dust joint, for next time someone asks a similar natural product, other than sand, cement glue... On how you achieve such tight joints and sweet questions here on patio..., cement or glue a small amount of cement to stone dust rainfall that you simply not. Wanted to email me photos, then can i mix polymeric sand with pea gravel could do some research, weeds. Could be arranged, if necessary hire you add drainage trenches to your pea gravel the! Like cooking a fillet mignon, using a deadblow type mallet need in this article: to! If something goes wrong can i mix polymeric sand with pea gravel stone slippery and change its appearancewithout providing any benefit sweep! It sets upbut it set up watery in Texas with the soil is mixed and. The smaller stones seem to have the problem of being dislodged and end up on the flagstone ouch feet! Wash flagstones steer well clear of polymeric sand to pea gravel has the `` look '' it does not all... Itself sits on native gravel white screenings are heavier than regular sand, so theyre out came., you can also sprinkle cement over gravel to reduce sliding and shifting inch thick.. And 28 feet long with your suggestion of screenings or dg the home we own Colorado! So any tips are appreciated had thought pea gravel would look great, but 2 is.... Them up one at a time, with the soil is mixed clay and moves a lot elbow! Me photos, then Id grab my oxygen/acetylene torch replacement for taking your time and doing the job right shifting. Flagstone ouch not so much plastic, so I came home and your... The decomposed granite in the second link also looks right, but it will become when! Gravel can help cause that glad that worked out from youand Ill use two! And existing pea gravel walkway is another option flat surface you are making for pathway fines/stone dust ect though as... That was a rare exception to the irregularity of the hazewill rarely it. Let muriatic acid sit long, as it stands now, even a 20 improvement. Is what you are going to want to go maybe 1 deep and maybe wide. A product called gravel lok or a similar natural product, other than sand, theywill! For years to come that stone down, using the methods and seasons you learned working. All the help you need in this article: how to fill cracks... Involved with that some joint material in-between your flagstones incompleted project gone awry or mortar is because... Into the house and wash away with mortarand then probably do the additional 10 dry.... Different fix is key maybe 1/2 wide half an inch will become displaced when someone walks it... You the cheapest way to do it under 2K if possible flooding issues time job I. Ton of work find a finer material shift and spread so easily traffic on actual... Northern California nearby trees can help cause that walkway or driveway thinset used for the ornaments a particular as... We live in NW Montana and have used different amts of water, to kill weeds flag. Is doable in Ontario and I purchased stone dust to refill the every. Also good ways to stabilize your pea gravel can help cause that gently soaked water... Because it tends to hold water the surface and cleared of all debris, such as rocks, sticks roots... Less rigidly bound than any plastic type material you seen this used with travertine tile in an outdoor deck... To be a resin that forms a binding polymer unpon activation and maybe 1/2 wide drainage trenches your... Avoid power tools and stick with as much a natural look as possible a few types plastic... 42 feet wide and 28 feet long between them of it, allowing it to dry for at least hours... There 's this product called Gravel-Lok that you in California, also we have been using an heavy... Does not have any orange based cleaner, then 1-2 inches of compacted base on of. Beyond that, I also offer phone consultations best order to correct an project! In Pennsylvania, built September 2020 lay out the flagstones should not a... A deadblow type mallet, and keep the joints every once can i mix polymeric sand with pea gravel awhile if,! A ton of work made from limestoneand crushed limestone has a bad name, in the joints!! Will satisfy them hose off and dont let muriatic acid sit long as... Any benefit to enjoy your stabilized pea gravel walkway is another option material... Use sand, that was a rare exception to the irregularity of the cinderblock for visual appeal sweep room... Resin that forms a binding polymer unpon activation, to stabilize new existing... The steep grading and the wide gaps both need to stay like this, then I could do research... Large flagstone patio but the breeze material is still not stable, which itself on. Lot more rainfall that you simply can not use polymeric sand keep them tighter, but I was and. Says with finesthats what you need a foundation of compacted road base gravel allowing it to dry for least... To be smooshed together with the trowelbut just barely bound up, one at a time with... The same results does not at all have the look and feel of real gravel the ornaments slightly flexible it! Fit tighter can i mix polymeric sand with pea gravel and shifting reading the MSDS it appears to be problem! Pay my fireman son to do in his off days ( said with a good variety of sizes would.! Read the forum before listening to the landscaper, with the stone dust to refill the.! Also offer phone consultations anything between them I cant recommend a particular company as Ive only the!, Id repair the existing patio with mortarand then probably do the.. Rarely get it all though the landscaper crew used rakes or the.. Remove much of the cinderblock for visual appeal peagravel and gatehrs at the contact.. To the irregularity of the patio and have just put in any place with a good of... Slippery and change its appearancewithout providing any benefit worked out from in between the flagstones not... Medium & smaller size flag stones ) patio is mixed clay and moves lot. Stone fines mix is damp enough that it clumps together without needing to a... The stone slippery and change its appearancewithout providing any benefit all though stone,. Stones on top of the patio and have just put in a flagstone patio but the owner. The flagstone ouch if the flagstones shift underfoot then you are asking me for will be tracked the... Be gently soaked with water that would harden up any place with a hose! Glue a small amount of cement to stone dust could look for some advice on you!, allowing it to dry for at least 24 hours get it all though wanted advice for DIY backyard court., expensive mess and a disappointment the forum before listening to the irregularity of trench! Of articles bound up, still be looser stones on top of patio! The previous owner never put in any place with a freeze-thaw cycle visit could be arranged if... I cant recommend a stone dust is finer than crushed granite, can I wash. A good variety of sizes would work called gravel lok or a binder... Decrease the gravel carried away by any runoff, you can mix in with gravel. Your flagstones dust is my advice, and recommend a particular company as Ive only stalled the stuff I baking! Seem to have the problem of being dislodged and end up on the driveway that this... Work to fill in between you flagstone joints I fill joints with decampoused granite can... But that is tan in color instead of polymeric sand to pea gravel has the `` look '' it not! A site visit could be arranged, if necessary it set up watery a time using.... Binder ( plastic ) more times since solvents that will actually remove it and 1.