Concrete Joint Sealing – To Seal Or Not To Seal?

Concrete Joint Sealing – To Seal Or Not To Seal?

Have you ever seen the lines that run along the sides of a concrete structure or sidewalk? They aren’t simply for show. Known as expansion joints, these lines aid in relieving stress that concrete may experience due to foundation shifting, temperature fluctuations, seismic activity, among other factors.

By lowering stress across each slab, they can considerably enhance the longevity of a concrete structure. However, these pavement joints also tend to hold surface water and other liquids, which can induce erosion and infiltration, resulting in even more severe damage.

The paving professionals at Sweeney’s Pavement Maintenance, LLC discuss concrete joint sealing to give you an idea of its importance.

What is Joint Sealing?

Joint sealing is an essential method in concrete repair – where the concrete joint sealant is used to seal concrete expansion and contraction joints in concrete floors and walls – of preserving the concrete’s integrity.

Types of Joint Sealants:

The suitable concrete joint sealant will effectively protect the structure from moisture damage. This damage can be caused by surface tension, wind, rain, gravity, and capillary force.

 A concrete joint sealer will protect the junction from damage caused by heavy machinery driving or rolling over the expansion joint, which leads to cracking and chipping of the edges and ultimately to the collapse of the concrete joint.

Manufacturers offer a wide range of concrete joint sealing products to address several issues. Three of the most popular sealants are as follows:

  • Liquid sealants
  • Impregnated foam sealants
  • Hybrid technology sealants

So, Should I Seal the Joints on my Driveway?

Contrary to popular belief, given the initial investment and ongoing maintenance costs, not all engineers believe it is cost-effective to seal concrete expansion joints in all applications, locations, and climates.

What happens is standard concrete pavement cracks as it cures, breaking constantly. The “control” joint sawed into curing, or “green” slabs serve to control where the concrete splits while it cures, that is, along the path of least resistance: the sawed joint. However, base erosion and slab faulting can occur behind the joint, resulting in spalled joint margins and extensive slab cracking.

Since the sawed crack control joints allow water and incompressible elements to enter the pavement structure and base, most professionals believe they should be sealed so debris and water can be prevented from seeping into the structure.

To conclude, yes, you should get your joints sealed to save future maintenance expenses and hassle.

Sweeney’s Pavement Maintenance, LLC, serving Topeka, Kansas, offers affordable and quick joint sealing services that fill the joints in your driveway to create an even surface. With our assistance, your driveway should be prepared to withstand all sorts of wear and tear caused by factors like heavy traffic, challenging weather conditions, etc.

Want to protect your pavement without compromising on its aesthetics? Get a free estimate!