Prevent Your Home from Cracking Up
Due to its versatility concrete has become an exceptionally popular building material which is used extensively within domestic homes and their surroundings. Concrete is comparatively inexpensive and can be poured into spaces where it is required. It is therefore frequently used in the construction of homes themselves and external hard surfaces such as paths, driveways and patios.
However, if concrete is not properly maintained it is liable to cracking and breaking up. The result is not only unattractive in appearance but is liable to deteriorating further if action is not taken through some form of concrete repair. The primary causes of the cracking of concrete are freeze-thaw weathering, the presence of surface water and subsidence.
Freeze-thaw weathering
The principle of freeze-thaw weather is simple: Water accumulates in small cracks or ruts in the concrete. In cold overnight conditions the water freezes and thus expands within the crack or rut. During the day the water thaws but come nightfall the process begins again. Over a period of time the crack or rut expands into a more extensive crack and ultimately the concrete can be broken up entirely.
Freeze-thaw weathering can be prevented by ensuring adequate drainage from the outset and by treating damage to a concrete surface as soon as it is noticed. By taking advantage of concrete repair the homeowner can ensure that the surface will not need to be replaced entirely in the future.
Surface water
Primarily, surface water can exacerbate the problems associated with freeze-thaw weathering. The greater the presence of water, the greater the problems that will be experienced. However, water running across a concrete surface on a regular basis can create a set of problems in its own right. Flowing water has the tendency over time to create small ruts within the concrete. These ruts can turn into cracks and the cracks can result in the breaking up of the surface. Again, by addressing such problems at an early stage wider ramifications can be prevented.
Subsidence
Subsidence is a problem caused by the nature of the ground on which the concrete has been poured. If the ground is particularly porous it may contain large quantities of groundwater when the concrete is laid. However, over time this groundwater by dissipate or may even be intentionally drained. With a lower volume of groundwater the ground where the concrete was laid the ground tends to sink.
This is particularly problematic when the concrete is poured over two different types of ground, one of which sinks and the other does not. The resulting subsidence can result in the breaking up of the concrete surface as the two sections shift in relative position to one another. This is one problem that cannot be rectified through the use of a simple concrete repair. In order to prevent future subsidence the concrete surface must be removed entirely and the ground must be prepared thoroughly and consistently prior to the re-pouring of the concrete surface. This will ensure that the same problem is not repeated in the future.



