From helping you grow your own vegetables, create your own special garden or even start your own gardening or landscaping business, I hope to have it all! Draw out your project using a pencil, chalk or can of spray-paint depending on the type of surface that you are working on. This is really up to you to decide, but when installing these driveways I always ask the customer to wait 3 weeks to be safe. However, whenever there is any doubt whatsoever regarding the existing ground conditions … This will need to be compacted by using a wacker plate. I would recommend a mortar mix similar to brick laying for best results. If my gardening blog doesn’t have the answers, then why not head over to our gardening discussion forum where we all help each other find the answers to your questions! Should there be a layer of gravel under the pavement. In short, you would dig out the area to be block paved, lay and compact type 1 MOT before laying and compacted sand. The thickness of the concrete - 125mm (5 inches) for family sized car or 150mm (6 inches) for light vans etc. Avoid purchasing cheap, thin paving slabs as they can move and crack, especially on the edges. Large 50mm concrete slabs are the most ideal for driveways as they are heavy duty and can withstand the weight of vehicles with ease. Edited March 3, 2011 by Steve Butters Even the preparation and laying of paving slabs is more labour intensive. Enter your email address to subscribe to this blog and receive notifications of new posts by email. The slope of the concrete - 1 in 40 (25mm in 1 metre, 1in in 3 ft) for driveways, 1 in 60 (16mm in 1 metre, 5/8in in 3 ft) for parking area. Be sure to check your floor for the possibility of it being a post tension slab. The recommendation is merely that the subgrade be uniformly compacted. Concrete Slab Cost. Since these conditions do not exist for driveways or parking lots, a granular subbase is not required. Concrete pavements as car parking slots offer superior performance when … How to park a car – bay parking diagram A. Whilst driving looking for that all important free space, keep a check in your rear mirror as you may need to signal to the left to let any vehicles behind you that you intend to stop. A 4-inch thickness is more than is needed for the typical parking lot traffic of passenger cars and light pickup trucks. Dont go to small on the topping stones, cats think its a giant litter tray. the way i would do it is to dig it down, lay some Visquine, lay some sand and tamp it down, then lay the pavers and fill the gaps in them with sand. To protect its roots, GEOFLOR can be laid directly on the existing lawn, without further interventions. High tolerance & levelness isn’t a priority so a Laser Screed Lay will probably be unnecessary. I would say that the next most important thing to get right is the pointing. Storing Your Car. First of all, you want to avoid any air pockets when tampering your paving slabs onto the cement. The string should run along the outer edge of the slab crossing one another at the corners with the stake out farther than the slab edge. Paving Expert is your friend. Avoid laying downhill if possible. I think that the main reason block paving is so popular, besides the point that they are specifically designed to withstand the weight of vehicles for driveways, is because they are a cheaper alternative to laying paving slabs. If non resident parking is an issue, ask for a residents parking scheme. And the answer is yes! 1) Position the parking block where you want to install it. But there are some precautions to make before hand. To build your own gravel parking pad, you’ll need to dig and remove about six to eight inches of soil. The passage of vehicles on a lawn can lead to the formation of ruts and damage to the grass, which is not anymore able to grow normally. If the traffic pattern will bring heavier trucks near the free edge of the slab (at the slab perimeter or at an expansion joint) thickening the slab edge … Lay the pavers in the chosen pattern, starting from the straightest convenient edge. Size and Orientation. Delineate your off-street parking by laying a surface that’s different to the adjoining road and pavement. HomeAdvisor's Concrete Slab Cost Calculator gives average installed concrete costs per square foot or size (30x30, 24x24, 40x60) for garage floors, sheds, backyard slabs and more. Large base stones or L-sized stones should then be installed in the bottom to a depth of four to six inches for strength. Your final cost will depend on the slabs size, thickness, and if you any special reinforcement such as wire mesh or rebar. Once you have your type 1 MOT compacted, it’s time to start mixing a 3 to 1 mix of sand and cement, which should give you a nice 2-3 inches of solid cement between the type 1 MOT and paving slabs once set. In looking for recommendations on what the standards ought to be I've run into a lot of different opinions from people I thought would know the answers. 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I am a professional gardener looking to provide you with the latest help and advice on everything gardening. Estimate the labor price … Using the holes molded in the parking block as templates, mark the location of each hole on the concrete surface. Mark out the patio area to be laid with paving slabs. In theory, if you do this as you go along, then all of the cement will set together, from the foundation to the pointing, making it even stronger when holding everything together. Q: I planted a pine tree in my yard about 30 years ago. Hi I have had two companies call to today to give an estimate to take up and renew a driveway (to take three cars) approx 77 sq m. The first said fitting slabs was not a problem as long as the base was well done, the second was adamant that fitting slabs was not possible and that it must be pavers or expensive cobbles, I must … A typical concrete slab costs $4 to $8 per square foot with most homeowners spending between $5.35 to $6.17 per square foot, or $113 to $126 per cubic yard for both materials and installation. Maintaining a nominal joint of 3mm between pavers is essential to allow sand penetration and paving performance. This being said, it doesn’t completely eliminate the want for natural stone flag stones, although the thicker the better. Remove the battery and keep it clear of damp concrete. For many years asphalt has dominated the parking lot market, for no better reasons than its being cheap and easy to apply. The different opinions may reflect some changes in standards that are taking place. dig the soil out, lay 100mm of hardcore, wacker it down then lay slabs on 5 spots of 5:1 mortar mix, point up with same mix. For Square/Rectangle Slabs – Drive stakes at the corners past the edge of the desired slab and connect the stakes with string. In recent years the concrete industry has made a concerted effort to capture a larger share of that market. You can lay some weed control fabric (terain) under the type 1 then just add your desired topping stones. If you're parking backwards, switch into reverse when you're about a car's length from the spot. ... while also drawing attention to the mix of slabs in various sizes. Don't forget some other important standards about which you didn't ask: 3500 to 4000 psi concrete, air entrainment in severe climates and a maximum slump of about 4 to 5 inches. If it is desired to space joints farther apart than 10 feet, mesh would be helpful. Welcome to Hankintech! The sub-base may be considered optional. Excavate the area to a depth of 8 to 12 inches to remove the topsoil and lay your foundation on the much more compact subsoil beneath. Be sure to really shove the cement in between the slabs, making sure that it is will compacted under all of the edges, corners and right up to where the slabs meet. A 4-inch thickness is more than is needed for the typical parking lot traffic of passenger cars and light pickup trucks. Driveways and Parking areas . Concrete pavements for car parking are constructed as slab-on-grade structures which are not subjected to heavy traffic and movement as compared to highway concrete pavements. You will not usually require wire reinforcing mesh. However, it is a practical minimum for construction. If that is done, the shrinkage is provided for, and there is no need for wire mesh. They provide access to both heavy and light delivery vehicles. Lay The Pavers. This leaves two suitable options; Screed Rail lay or Hand Lay. To park a car forward with an automatic transmission, steer the car towards the spot and push down on the brake lightly to slow down, then brake harder when you're in position. It may be economical to bring in a couple of inches of granular material to allow more accurate fine grading, especially when working with a minimum pavement thickness. Just put it in the middle....in a 5 or 6" slab it's hard enouhg to get it in the middle let alone bias it up or down. Run a compacting roller over the excavated area to smooth the surface and compress any loose soil that remains, and then place a layer of geotextile fabric on top of the compressed soil to create … 1. When you stop the car, stop with around an equal distance from the cars on the left and from what is on … Even the preparation and laying of paving slabs is more labour intensive. This has resulted in the application of more realistic minimum standards that are involved in all three of your questions. It doesn't increase the load carrying capacity of the slab; its primary purpose is to prevent the opening of shrinkage cracks that occur between joints. You then simply lay the paviours, compact them using a wacker plate and brush in kiln dried sand without the need for cement. Ideally you would want a depth of 50mm, although 32mm should suffice providing that the foundation is done properly. The driveway should be wide enough to let you park the car and walk around it without stepping off onto the lawn. Remove the parking block; 2) Drill Using a high-speed hammer drill with a 3/4″ masonry bit, drill a 4″ to 4 1/2″ deep hole in the concrete at each marked … On sites where the sub-grade is sound, or where traffic loading are expected to be minimal (cars only, and occasionally), it may be difficult to justify the additional expense of installing a new sub-base.. So far (touch wood) I’ve never had any problems! To be honest, the majority of work we undertake now for laying paving slabs is much more popular, providing many more colours and designs, although not as strong as concrete flag stones. So for the base of the shed can i just put the paving stones down on a layer of sand with no cement and then put one of those weeding sheets over the top, then have the shed built on top. Apart from concrete pavement design, however, there are conditions under which some granular material may be helpful in construction. A good plumber can refer you to a leak detection service that will do a more thorough check for under-slab leaks at your house. A granular subbase is used to prevent pumping at joints in concrete highways subjected to heavy loads moving at high speeds. With block paving being so popular for the installation of driveways, it begs the question, can I use paving slabs (also known as flag stones) for my driveway? The sub base is the most important part of laying any driveway, whether that be block paving or paving slabs, since the weight of the vehicle can cause the paving to sink or crack. After compacting the area, finish the pad with regular-sized gravel or choker angular gravel. Hi All i having a shed come in the next few weeks and money is tight the min. Don’t use any ‘quick pave’ style product as this won’t be strong enough to hold the paving slabs together, so providing that you are using a 3 to 1 mix for your foundation when laying the paving flag stones then I would recommend using this same mix for the pointing, as you lay the slabs. As for your off road parking, keep in mind that a significant change in surface may require planning permission. Heavy clay soils can be difficult to grade accurately. I also put this down on my guarantee document as I don’t want to come back to repair problems because the customer drove on their new driveway way too soon! Since ours broke down, we have been renting them since as this has worked out a lot more cost effective. Concrete was almost always overdesigned for the purpose and therefore more expensive. String line should be tight so it does not droop in the middle. If it were block paving, there is only kiln dried sand used between blocks, so the worst that can happen is you could have dips in places. Wet the concrete thoroughly, and then cover it with the sheeting of your choice, using bricks, rocks, or other heavy items to hold it in place. Q: This is my second year as a contractor doing residential and some commercial work, primarily walks, driveways and parking areas. If a floor is of questionable slope, consider a survey of the site and / or the possibility of pouring a new level concrete slab. Of course, this would still need to be remedied by the company that installed the driveway, so be sure to have a signed guarantee! 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