Swept joint sand (quartz sand) keeps the joints of paving slabs permanently weed-free. The prerequisite for this is that it is used correctly. In this article you will find out how to proceed when spreading so that unwanted green does not spread again within a very short time.

Quartz sand protects the joints from weeds

Even the ancient Romans knew the advantages of joint sand

The principle of paving slabs and fine joint sand was already used by the ancient Romans for road construction. Many of their paths are still intact today and hardly overgrown by weeds. Reason enough to take advantage of the advantages in your own garden.

Weed-inhibiting joint sand consists of quartz sand (€15.85) whose minerals contain hardly any nutrients. In addition, the sand was crushed to ensure optimal compaction. As a result, it penetrates deep into even the finest cracks of one millimeter and completely fills the cavities. Despite this special sand being compacted so much, it retains its water-permeable properties.

The material has a very high pH value, creating conditions similar to those in the deserts. Weed seeds hardly have a chance to germinate and you no longer have to ask yourself the question: "How do I get weeds out of my cobblestone joints permanently?".

How is the sand used?

Before applying the joint sand, you have to reach for the joint scraper again. Flaming the weeds is not enough as this method leaves roots in the ground. Remove existing green carefully so that weeds that have already emerged do not grow again through the fresh joints.

It continues as follows:

  • Sweep everything well.
  • Clean stones with the high-pressure cleaner (119.90€).
  • Allow plaster to dry completely.
  • Empty the required sand in the middle of the area.
  • Mix well with a shovel.
  • Sweep quartz sand into the cracks diagonally to the joints with a soft broom.
  • For larger areas, it makes sense to compact the joint sand with a vibrating plate (€499.00) provided with a protective mat.
  • Alternatively, you can muddy it with a water jet that is not set too hard.

Repeat the process several times until all joints are completely filled. A spatula should only be pressed a few millimeters into the joint, then it is optimally filled.

Make sure that there are no unwanted depressions in which dust and dirt could collect. Weed seeds could sprout again in these places. The reward for very precise and thorough work is weed-free joints for years.

Excess joint sand is simply swept away. The next rain shower washes the last remains off the surface.

How often does this work have to be repeated?

Unlike concrete, sand does not form a permanent bond with the stones. Over time, it is washed away by water and carried away by the wind. Small indentations are formed in which soil is deposited and weeds offer optimal breeding ground. Therefore, you should regularly sweep in fresh quartz sand every few years.

tips

This special jointing sand is available in different color nuances, so that you can give the terrace or driveway an interesting, high-contrast look with the new pointing.

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