Need suggestions on how to fix paver blocks along the Road side

[Mehboob]

Pls provide some suggestions, I need to prepare this area for pavers, pavers level is 1' above road level

 

[Dnyan Deshmukh]

First of all, you need to do the compaction completely where paver block need to be installed.

Then in order to ensure there is no movement of blocks after placement, you need to cast a 200 mm band of height in level with paver blocks atleast on three sides of the total area where paver blocks need to be installed.

Do the bed preparation in lean mix, you can use crush sand along with cement for bedding (in case of services running from below, you can prepare a bed of only crush sand).

In case of combination of paver blocks and patterns to be made in it, you need to install line threads for alignment.

Do start installation from one side in L shape and proceed to other end same like flooring (you can use cement slurry / paste to fix blocks in position or you can lay dry in case services are running from below and want those blocks to be removed for maintenance.)

You can also find complete procedure in Work Procedure section at Forum. in case you do not find, you can request for it, might someone will help you on that.

 

[amd007]

1. First of all survey the total area to be paved using DUMPY LEVEL so that all the levels are freeze.
2. Generally, we keep a step of about 150mm from the plinth top to the paver tile top.
3. After this level is arrived give the slope of about 1" in every 10 feet so that the rainwater is directed towards the peripheral SWD or RWD along with the compound of the building.
4. Finish all your MEP connections going to be embedded in the paving floor.
5. Check all your drainage connections so that you don't need to break the pavers later in case of chock-ups same goes for Fire lines and electrical lines running below the pavers.
6. Compact the subsoil using 8-10T power vibratory roller so that the subsoil is thoroughly compacted, don't forget to water the subsoil 2 days before using the roller.
7. Do the rubble soling of desired thickness, we generally do 9" soling followed by 4" metal.4 which is again compacted with 8-10T power vibratory roller.
8. After this is done we generally carry out the lean mix, however nowadays due to the Fire tender movement, it's now become essential to do a grade slab which comprises of steel laid in both directions 8 to 10mm dia at 250mm C/c with at least M:20 grade of concrete. This itself is laid in a slope so that additional bedding mortar is avoided at the time of doing the paver tiles or blocks.
9. Earlier paver blocks were laid in crushed sand without the use of cement and after laying the paver tiles again compaction was done using a road roller. However, at the place where rain is prevalent, the crush sand tends to settle down due to the amount of grit powder available in the crushed sand and hence the paver blocks also used to settle down.
10. After years of expereince, it's now better to use a cement: crush sand ratio of at least 1:6 and ensure that this mix is thoroughly batched and dry mixed before adding water, thick slurry of cement is then used to lay the pavers.
11. This method will ensure that your pavers will never cave in only in case of an act of God like an earthquake or severe flooding rest these pavers will be in place throughout the life of the paver.
12. Please ensure that you choose the paver based on the vehicular load on the pavers currently and in the future if fire tender movement is expected then don't compromise below M:40 grade of paver blocks.
13. Also, ensure that you maintain the cement consumption and thickness of the bedding mortar on a daily basis as this is overlooked in most of the cases and is a major reason for the failure of the paving work.