Cover the entire area with the mix to a depth of 75mm, level it out with a shovel and then tamp down using a length of timber or trample down with your shoes. Lay the Indian Stone Paving slabs on a full mortar bed, which should support the whole slab, and not just the corners.
Which way should Indian stone be laid?
The finish is applied to the uppermost surface, the one that is to be displayed. On the underneath side it is possible to see faint lines, caused from milling the stone. This is your clue to make sure you lay the right surface against the mortar. See images below.
How do you lay Indian sandstone slabs?
Begin laying the sandstone paving in the mortar bed, placing them 8 to 10mm apart. Bed the paving down firmly into the mortar by tapping them lightly with a rubber mallet. Use a trowel to fill the joints with a mortar mix of four parts sand to one part cement. The mix should be of a “wet” workable consistency.
Can you lay Indian sandstone on sharp sand?
Techniques for laying Indian sandstone paving are different, the thickness variation of Indian Sandstone requires it to be laid on a 4 parts sharp sand: 1 part cement semi dry mix. … If the mix is too dry it will lack the flexibility required to adjust the finished height of the paving slabs.
What is the gap between Indian sandstone?
Sandstone flags should be pointed with 10-15mm joints between each slab. Sawn paving can be pointed with 3-5mm joints between each slab.
Does Indian sandstone need sealing before laying?
But what is the correct answer – and do you actually need to seal your stone? The short answer: No. The long answer: Natural stone has survived for 1000’s of years without any chemical treatments, so it’s unlikely to fall to pieces without a layer of sealant that some suppliers insist it needs.
Do I need to prime Indian Sandstone?
The backs of the units should be primed using a proprietary priming product or fine mortar slurry prior to placement upon the bedding mortar. This assists bonding and helps to prevent potential marks appearing through the paving units.
Is Indian Sandstone any good?
Indian Sandstone is a sedimentary rock that has been compressed over time. It is made essentially of quartz grains cemented together. The durability and strength of these rocks depend on the cementing material. The best quality Indian sandstone for garden paving, should be of fine grain and uniform texture.
Can you pressure wash Indian Sandstone?
Washing Indian sandstone slabs with a pressure washer is easy – just follow these steps: Remove furniture from your slabs. Sweep the area clean. Connect your power washer with a tap and turn on.
What do you point Indian stone with?
Mix the sand and cement together adding water as you go to get a near-liquid consistency and then you can begin pointing the area. It is advisable to have two trowels – one for removing mortar and the other for pushing it down into the joint and firming it down.
How long do you have to wait to seal Indian sandstone?
Whether you choose to seal before or after laying, most sealants require a period of at least three dry days with a temperature of 10°C or higher so the slabs have had plenty of time to thoroughly dry out, as any moisture on or within the slabs can sometimes cause unpredictable results.
Can you lay Indian sandstone in the rain?
Rain stops play – damp sand won’t brush! … Flags, setts, cobbles, block paving and loose aggregates can be laid during damp weather as long as the laying course, whether it is a cementitious material ( mortar or concrete ) or an unbound aggregate (sand, grit, whin dust) is not overly wet.
Can I use sharp sand for pointing slabs?
Some installers like to use a coarser or sharp sand, but this can result in a rough-looking finish when used for dry grouting. Due to its versatility, Sharp Sand is a good garden all-rounder. Ideal for screeds, renders or concrete, Sharp Sand can also be used when laying slabs or block paving.
Can you lay pavers on just sand?
The vast majority of sand you see is just small pieces of rock. On some beaches it can be tiny pieces of sea shells or broken coral. In other words, compacted sand can provide a sufficient base for a paver patio that’s just going to have you walking across it.