Concrete Expansion Joints

Sure-seal provides concrete expansion joints installment services for small and large level projects. They are the ultimate solution to all the problems related to concrete assemblies. As the greatest weakness and strength of concrete, i.e., its non-ductile properties make it hard to change shape without breaking. The Sure-seal understands the concrete’s structural characteristics to provide you specific concrete expansions.

Moreover, concrete is not able to stretch but moves due to certain thermal effects. Consequently, it can shrink and expand in different parts of the building in various ways. Thus, Sure-Seal ensures particular integration of concrete expansion joints in peculiar building sites.

Furthermore, in construction, concrete expansion joints function in two ways, i.e., serve as decorations and prevent cracking of concrete slabs. They decrease the stress on the concrete assemblies and allow them to move freely without cracking. Therefore, you can consult Sure-seal to handle various concrete-related chores, including protection of slabs through expansion joints.

Subsequently, Concrete expansion joints are necessary for the longevity and sustainability of concrete assemblies. Sure-seal provides the best services for installing concrete expansion joints in buildings, roads, and sidewalks. They create a sturdy building envelope by hiring experienced contractors and maintain the integrity of the construction with high-quality materials and products.

What are Concrete Expansion Joints?

Concrete expansion joints separate slabs and concrete from the rest of the structure. They allow free and independent movement between the concrete slabs, walls, concrete slabs, or adjoining structures. They are responsible for providing a place for expansion and lessening the cracking chance if assemblies don’t allow concrete to expand freely. Moreover, they increase the aesthetic values of buildings too. Sure-seal provides concrete expansion joints in buildings and roads.

Weather conditions and external environmental factors can affect the building material in construction. Due to heat and cold, concrete expands and contracts. 4 inch Expansion joint help withstand thermal expansions and contraction effects without putting pressure and stress on the assembly. They prevent building tensile stress that causes cracking in the constructions.

The concrete expansion joint is a gap between the two structures that allow the free movement of materials. The movement may be the result of environmental conditions or due to several properties of materials. If the gap is not present, the movement creates stress, and it causes the tiles or assemblies to break at random points. So, expansion joints provide room for sudden expansion and contraction of concrete slabs and tiles. Also, the concrete expansion joint is designed to prevent slab cracking and reduce pushing against existing materials

Why Are Concrete Expansion Joints Necessary?

The purpose of installing an expansion joint is to prevent random cracking due to thermal expansion and contraction. A concrete mixture contains fluid, gravel, and cement that can mold in different shapes. The material hardens after use in construction because the fluid evaporates. As a result of evaporation, the material along with hardening experiences contraction.

Supporting structures such as granular fill, soils, and adjoining slabs make contraction difficult. They exert tensile stress up to 8% to 12% of concrete’s compressive strength and cannot withstand the pressure. The weakest point of concrete is that it breaks when it experiences unnecessary stress. As a result of tensile stress due to contraction, the assembly starts cracking at random points.

There are two ways that Sure-seal engineers apply to control the cracking. The first one is steel reinforcements between the concrete slabs that hold the random cracks closely. The aggregate particles at the crack interlock and transfer load across the crack. Steel reinforcements are effective, but they increase the chance of producing random hairline cracks in the concrete.

The second way of preventing cracking is installing the control joints, such as concrete expansion joints. They are the gaps between the adjacent structures that come in function when the assembly contracts or expands. Expansion joints provide room for the concrete to contract freely after the fluid evaporates. Moreover, placing them at predetermined locations to create a weak plane helps the concrete crack in a straight line.

Sure-seal Expansion joints create aesthetic presentation because the cracks are formed below the surface, and they are not visible. In this case, the concrete cracks are not random and give un-cracked slabs that look like design patterns. Finally, concluding expansion joints provide ease of movement due to contraction and thermal expansion of the material. Moreover, they give an appealing look to the construction.

Characteristics of Concrete Expansion Joints

  • Expansion joints allow the concrete to undergo thermal expansion and contraction without exerting tensile stress on the assembly.
  • They are the discontinuity gaps between sections of the construction.
  • Expansion joints in concrete blocks are called control joints.
  • Expansion joints absorb the expansion and shrinking of materials used in construction. Moreover, they absorb vibrations and allow the soil to move as a result of earthquakes.
  • The concrete expansion joint is present in bridges, railway tracks, piping systems, and paving slabs.
  • Expansion joints are responsible for saving buildings’ structures that can collapse due to materials’ movement during seismic activities.
  • Expansion joints are designed to prevent slab cracking and reduce pushing against existing materials.