Ingredients in Jointing Sand

Save

Jointing sand is the material that is placed between bricks and stone pavers. The primary purpose of jointing sand is to improve the 'interlock' between the 'joints' where each edge meets the edge of another brick or paver. The jointing sand prevents rain and moisture from penetrating the cracks between pieces of brick and causing the soil underneath from washing away causing a shift in position of the bricks. Ant and weed intrusions are also prevented.

Primary Ingredient

  • Sand, or silica, makes up 80 percent to 95 percent of the mixture and is the primary ingredient in jointing sand. It is often called polymeric sand because of the chemical binder that is put into the mixture. The sand that is used is the same sand used in bags of play sand for filling a child's sand box and in blending with other ingredients to make cement or concrete mixtures.

Chemical Binder

  • Some mixtures of jointing sand use an organic water-activated chemical binder. Others use a man-made binder. The binder combines with the water and acts as a sealant to further increase the effectiveness of the jointing sand as a barrier to moisture, weeds and ants. One brand of man-made binder is called sandlock, which though is man made is not toxic; it is a blend of organic materials to provide optimum protection against wear.

Portland Cement

  • Portland Cement is sometimes used as a filler or chemical binder in jointing sand; it is one of the man-made chemical compounds that can be considered toxic if too much is breathed over a period of time.

Quartz and Crystaline Silica

  • The amount of quartz silica to sand depends on the brand of jointing sand chosen. Quartz is a natural part of some silica sand as is crystaline silica. These particles are the 'shiny' granules you will find in the sand. Quartz is one of the hardest materials on earth and once bound using the water activated compounds, the quartz helps add strength to the jointing sand to help prevent cracks and separation of the bricks or pavers, which allow weeds, water and ants to weaken the connection and cause loose pieces.

References

  • Photo Credit Jupiterimages/Photos.com/Getty Images Thinkstock/Comstock/Getty Images
Promoted By Zergnet

Comments

You May Also Like

  • How to Put Sand Between Pavers

    When creating a patio, driveway or walkway out of pavers, it is important to properly execute all steps of the installation process....

  • How to Cut a Rebate Joint

    A rebate, or lapped joint, is a way to join two pieces of wood. It is common in the building of furniture,...

  • How to Install Jointing Sand

    Jointing or polymeric sand is used to fill the joints between pavers or stones instead of mortar. The sand contains a component...

  • How to Build Your Own Emergency Water Filter

    Water is life. Dehydration can kill a healthy adult in less than four days. Contaminated water sickens and kills millions of people...

  • How Is Fiberglass Insulation Made?

    It starts with sand. Fiberglass is literally a fiber spun from molten glass, and silica sand is the main ingredient in glass...

  • Play Sand Vs. Regular Sand

    Parents concerned about the safety of their children should pay attention to the different types of sand available for use in sandboxes....

  • How to Harden Sand

    When you think of sand you might reminisce about sandcastles at the beach or playing in the sandbox as a child. But...

  • Uses for Silica Gel Packs

    You find those little white packets in all kinds of purchased items these days. They're packets of silica gel used to absorb...

Related Searches

Read Article

How to Build and Grow a Salad Garden On Your Balcony

M
Is DIY in your DNA? Become part of our maker community.
Submit Your Work!