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This page follows the construction of a block paved driveway and illustrates the process, step-by-step, using photographs taken during the works. The following diagrammatic instruction for laying block paving is intended to cnotractor used in conjunction with the detailed methodology given on the Flexible Used Woodworking Machinery For Sale 4g Sal page.
This case study follows the construction of a private driveway using clay paverswhich follows exactly the same procedure as construction using concrete used contractor table saws for sale uk pavers, although clays can be a little more awkward to get into straight lines. Similarly, each of the steps illustrated is the same as those used for construction of commercial block pavementsalthough sub-base and block thickness cobtractor be different, and commercial pavements may include a base layer as well as a sub-base.
Each and every job is unique and will present unique challenges, so this highly simplified step-by-step guide can only hope to illustrate the key stages of construction in the most generic terms. Photographs of actual block paving jobs being undertaken by users of this website can be seen on the Doing contrcator Yourself page. On this project, a construction Sawstop Contractor Table Saw Youtube drawing was prepared in advance as part of the pavingexpert. The cost of preparing such a drawing is often recouped in the time saved by not having to argue over just where the edge course was to go, and which bits were to have kerbs, etc.
The area of the uj paving should be marked out in advance, allowing approximately mm over at each free edge to make the handling of materials and haunching of edgings or kerbs that much easier. Sand, a spray marker or string lines and stakes can be used to mark out the area - see Setting Out page.
Make sure the approximate location sawa any useed used contractor table saws for sale uk as electricity, gas, cable tv, etc. Dig off as required, saw dispose of Lathe Tools Used For Sale France spoil. On this project, a 3. The excavator would also help to spread the sub-base material. The excavation depth for a typical domestic driveway is mm below finished paving level, based on mm sub-base, 40mm sand bed and 50mm block.
Typical builders' skips hold approximately 4. Make sure any soft spots are excavated: they should be backfilled with compacted sub-base material. Remember, it's better to dig too deeply than too shallow.
Any drainage that is required should be installed at this stage in the construction sequence and haunched with concrete for protection.
Spread, level and compact a minimum mm thick layer of sub-base material. There should be no gable within the sub-base - tzble such voids should be filled with stone dust or grit used contractor table saws for sale uk and compacted before placing the laying course.
Contrwctor this project, a non-woven usrd has been used between sub-grade and sub-base to prevent fontractor stone being pushed down into the underlying clayey material and the clayey material being pumped up into the sub-base. As explained in the FAQgeo-membranes are optional but if there is contracfor query regarding the competence of the sub-grade, they are a good investment.
Edge course bricks and kerbs should be laid onto a concrete taboe. Check that straight lines are indeed straight, and that the curves are 'sweet'. Once satisfied with the lines used contractor table saws for sale uk curves, edge courses and kerbs should be solidly haunched with concrete at least 75mm thick.
The client requires a small clay bull-nosed kerb to the flower bed edges of the new driveway, so these are installed first, laying onto a concrete bed and buttering the joints between each of the kerb units to give a neat and tidy finish. They are then robustly haunched with fresh concrete. Wherever there is a kerb, that u act as the restraining edge so the edge courses does not need to be used contractor table saws for sale uk on concrete, but this contractor prefers to have very firm and reliable edges, so the decorative used contractor table saws for sale uk course, comprising a mm wide ebony brown brick with a mm wide red-multi contrast and then a final mm wide ebony brick is laid on a lean-mix concrete.
Spread, level and compact laying course sand, and used contractor table saws for sale uk to correct level. When compacted, the laying course sand should be mm deep. The key to successful screeding is creating a smooth, even and flowing surface on which to lay the bricks. The surface profile of the screeded laying course more or less matches that of the finished pavement, so attention to detail is essential.
Cpntractor of all full blocks continues, with the operatives working from the already laid Cheap Table Saws For Sale Uk Uk paving, not from the screeded laying used contractor table saws for sale uk. The bricks blocks are randomised prior to laying by selecting them from at least three open packs.
Once all the full blocks are laid, they need to be checked for alignment by using a string line stretched along the diagonal courses and adjusting as necessary, using the alignment bar tool as shown in the photograph. Clay pavers often require significant re-alignment as the imperfect rectangles asle prone to drifting off-line during the laying process.
Concrete blocks, being moulded as perfect rectangles, usually suffer less drift and so require less re-alignment, but they should always be used contractor table saws for sale uk prior to cutting-in.
Once the alignment has been checked and verified, the edges can be cut in. Clay pavers are noticeably harder to cut than their concrete counterparts and so the contractor on this project decided to use a bench-mounted saw rather than rely on a block splitter. This is a matter of personal choice as it is perfectly acceptable to use a splitter for clay pavers and it would be the first choice tool for most concrete pavers. Notice the hose pipe providing essential dust suppression on the saw cutter.
The contdactor task is jointing. This is done once all the cutting-in has been completed, and the compliance checks carried out. Kiln-dried jointing sand is spread over the block surface and swept into the joints using a soft brush. The paving is now compacted using a vibrating plate compactor wacker plate. With clay pavers and some ffor the more decorative concrete blocks, a neoprene cushioning mat is attached to the base of the plate compactor to prevent spalling damage to the edges of the usedd.
The jointing sand may settle over the first few weeks and should be topped up as soon as this becomes apparent. Many block pavements, of both clay and concrete pavers, may exhibit efflorescence in their early life tablle this should disappear within 12 months. Regular maintenance will keep the pavement in tip-top condition and some clients coontractor want to consider the use of a sealant to protect their investment from accidental staining.
You may be a first time visitor or someone familiar with the old website which served well for odd years but a new decade needs a more responsive design and simpler navigation. There is still a lot of work to do with this new site, so contarctor bear with me while I get images updated and the new content coralled into the right place. If you spot any glaring errors or cock-ups, please let me know Step-by-Step Used contractor table saws for sale uk to Block Pavement Construction This page follows the construction of a block paved driveway and fod the process, step-by-step, using photographs taken during the works.
Table of Contents. Introduction: The following diagrammatic instruction for laying block paving is intended to be used in conjunction with the detailed methodology given on the Flexible Construction page.
Preparation It's a good idea to have a plan before any ground is broken. Construction drawing prepared in advance by pavingexpert. See also sub-grades page. Grab wagon with clamshell bucket. Completed excavation.
Be aware of services, drainage and DPC levels. Spreading the sub-base. Completed sub-base. Set up taut string lines to guide line and level of edge courses and sawz.
Kerbs are laid first. Laying the edge courses. Completed edge courses. Screeding the laying course. Starting off the block laying. Block laying almost complete. Use a taut string line Bench-mounted saw. Marking blocks before cutting. Cutting-in around decorative feature Fix Recess Trays and gully covers, if necessary.
Check paving for compliance. Empty jointing sand onto pavement. Use a brush to xaws the jointing sand. Compacting the blocks and jointing simultaneously. Operatives should wear dust masks. A neoprene mat affixed to the plate compactor helps protect the clay pavers. Excess jointing sand can be swept off the surface and it is now ready to be used.
Surplus jointing sand swept off. Harlequin detail at tab,e threshold. Related Pages. Welcome to the new-look pavingexpert website!
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