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Laying Indian Sandstone Paving
A good plan is essential to a successful paving project. Your project will need to have adequate fall and drainage if you want it to be safe and durable.
Check with your local utilities company before starting any construction. Installing pavers may be easy, but it’s necessary to check with your local utilities company before commencing to ensure that you do not accidentally strike or obtrude any cables or pipes.
Outline the project area. Excavate the installation area. Projects that will be exposed to only foot traffic generally require 100 -150mm of crushed stone Type 1 MOT, while driveways or projects in very wet soil may need as much as 200mm of base. Be sure to excavate 150 to 200mm beyond the boundaries of the project to give you ample space to install your edge restraints.
The best way to lay indian sandstone
Lay a suitable sub base such as Type 1 MOT, be sure to lay base material beyond the planned boundaries of the paving stones. Laying the base outside the boundaries of the pavers will make your project more stable. Make sure this is well compacted using the necessary equipment such as compaction plate (Wacker Plate).
After the sub base is compacted, use a wet bed of mortar 6:1 ratio and ensure you achieve 35 to 50mm laying course of mortar mix. All natural stone should be laid on a full bed of Mortar that supports the whole flagstone, Use of a priming slurry Should be applied to the underside of the paving stones to help improve adhesion. (Spot bedding on any paving stone is not recommended). Ensure all cement stains are washed off immediately or this would result in staining the slabs.
Please do not use any acid based cleaners for removing stains.
Paving stones should be carefully laid on top of the mortar mix, tap into place using rubber mallet. Place the next flag with an adequate joint and continue with appropriate laying guide. After completion of laying the flagstones, curing time should be allowed for 24 hours.
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Can you lay sandstone on sand?
There is much discussion on this subject but the short answer has to be no. Laying sandstone paving should only be done with a full wet bed of Mortar at a ratio of 5.1 sand and cement and the slabs should be primed individually before laying using a slurry primer to aid with adhesion and to prevent salt blooms. Here at Perfect Pave we use Pro Slurry Prime of which we can be purchased from us directly.
How do you point sandstone paving?
Pointing is one of the last and most important stages of getting your patio looking right, and finished properly.
There are a few options with pointing/jointing, here we will look at traditional method of sand and cement, as well as brush in readymade jointing products. Sand and cement pointing is undertaken after the laying paving stone and given time to dry (normally 24-48 hours) and must be done in dry, frost free conditions of 2 degrees and rising as a minimum, to allow the pointing mortar adequate time to dry and harden.
The first stage is to make sure all gaps to be pointed are dry and clean, and then the mortar can be mixed. An average ratio of sand to cement would be 5 parts sand to 1 part cement, you can go stronger than this however weaker is not advisable. Mix the sand and cement together adding a small amount of water to the correct consistency. This should be able to ball up in your hand without crumbling and not to wet, now you can start pointing your patio.
Another method is to use an air curing pointing compound we suggest Marshalls 365 Weather Point Jointing Compound. This is very easy to install and will last just as long as traditional pointing. The application is much faster than the conventional pointing method and has become the most popular of the pointing options. Again before starting the joints need to be clean. A hose will be needed to soak the paving area as this acts as a lubricant to stop the resin pointing from staining and it is then a simple case of opening the bags and sweeping the compound in using a hard brush. Once swept, in press into the joint with a trowel or pointing iron, when you are happy all the joints are filled the paving should be allowed to dry. During this time a soft coco brush should be used to sweep off the excess at a 45 degree angle so as not to pull the jointing compound out of the joints and then leave to cure for a further 48 hours.
Can you jet wash indian sandstone?
A jet washer or pressure washer is an ideal way of cleaning Indian sandstone. But care must be taken. It is important to use either a flat surface cleaner or a wide fan tip. Some sandstone can be soft it is important not to use a pencil jet or use a turbo on a high pressure setting directly on to the sandstone at close range however you can use pencil/ high setting if you keep the pressure washer held above the paving around 300mm.
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Indian Sandstone Paving Products
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