EASYJoint for Domestic Vehicular Driveways

EASYJoint does not form a structural part of the driveway; it only serves as a joint filler. If the surface material is not adequately bedded into the base then the joint filler will not withstand the twisting (or torque) caused when a vehicle changes direction (i.e. turning).

The sub-base and bedding mix should be installed to an appropriate specification for the type of vehicle that will use the drive.

The guidance given below assumes that an appropriate surface material has been used that will allow sufficient depth to be well bedded into the base. Most installers will submerge at least 50% of the depth of the paver into the bedding mix which will have been made to a strong consistency and will therefore be impermeable. The instructions given below assume that the base is impermeable

Paving Type

Most paving materials for driveways will be made of concrete which needs no special treatment for its protection other than that given in the Application Method. However, some appropriately specified natural stone can be used.

Sensitivity to marking

Even with liberal amounts of water, some types of natural stone, e.g. Granite, Black Limestone and Modak, can be very sensitive and susceptible to marking; from the natural environment, from mortar used for the base or joints or from specialist joint fillers.

To greatly diminish the possibility of marking these types of stone we strongly recommend sealing the paving with a breathable sealant, if possible before installation but certainly prior to jointing. A breathable stone sealer will provide protection both during the jointing process and afterwards. It will also allow any efflorescence (white deposits caused by natural salts) present in the base and substrate to pass up through the paving material and over time, dissipate harmlessly into the atmosphere. This is a problem that is particularly prevalent in Black Limestone and will regularly appear after installation. It is not caused by the use of EASYJoint.

Our own water-based sealants - EASYSeal SSP and EASYSeal Ultimate - are ideal for this purpose. If in doubt please contact us at info@azpects.co.uk or call us on 01473 760777.


Applying EASYJoint

Weather Conditions

If you were working with a permeable base, the description of EASYJoint being an "All Weather" product is true. However, because you are working on an impermeable base, which will restrict the draining of water, some weather precautions do apply.

You are strongly advised to wait for a dry spell when moderate to heavy rain is not forecast for at least 18 hours (moderate to warm temperatures) or 36 hours (colder conditions) after the application. This is to give the best chance of the water that was used in the application process being able to drain and evaporate from the joint and for the curing process to commence. If further water is added from rainfall during the curing process, there is a risk that the surface of the joint will cure through evaporation but the bottom of the joint will not, leaving a weak result.

When temperatures are freezing or are 3 degress celcious and falling, refer to the before you start section.

Application Method

When working with an impermeable base, the operator has a choice of application methods (wet application method or dry application method) and needs to select the most appropriate for the job. Whichever method is selected, wait for a dry spell of at least 24-48 hours as appropriate (See specific application method below).

The paving must be protected from the oil inherent in the EASYJoint and the most common method of doing this is with water using the wet application method. However, EASYJoint requires oxygen to cure – Whilst it is wet, it will not set!

Because you are working with an impermeable base, there is a risk that any water used in the application process will evaporate from the surface of the joint allowing the top part to set hard whilst the lower part remains wet (because the water will be slow to drain). The problem is compounded if during the curing process it rains. Because the lower part of the joint is subject to a prolonged wet period with a seal being formed at the top of the joint, the curing process can not complete as the water at the bottom of the joint will not be able to escape/evaporate . This will cause the "binding" properties of the compound to become compromised.

When to use the dry application method

The dry application method would perhaps be better referred to as the "almost dry application method" because a small amount of water is still used to assist the compound being swept and falling to the bottom of the joints.

It would be appropriate to use the dry application method in the following circumstances:

  1. The site conditions are suitable – Refer to the before you start guide.
  2. Daytime temperatures are cool (even cold) and overnight temperatures may drop to 3 degrees celcious or less
  3. There is a possibility of rain within 24-48 hours of application.

 

EASYJoint for Driveways