How To Repair Expansion Joints In Concrete Walls

One of the common ways to repair concrete expansion joints involves some basic tools and a lot of time.

How to repair expansion joints in concrete walls.

Without a concrete expansion joint your sidewalk or driveway would crack. Expansion joints are cuts in concrete slabs or the joints between walls and concrete slabs that go completely through the slab to the base material. Concrete undergoes expansion due to high temperature when in a confined boundary which leads to cracks. Expansion joints are placed in concrete to prevent expansive cracks formed due to temperature change.

Restoring concrete expansion joints the hard way. Expansion joints are full width cuts installed in professional concrete floors and walls that allow the concrete to expand and contract without cracking randomly. Greased steel dowels are often cast horizontally into the wall to tie adjacent sections together. Expansion joints are provided in slabs pavements buildings bridges sidewalks railway tracks piping systems ships and other structures.

This how to video shows you how to repair and seal vertical and horizontal expansion joints gaps breaks spaces in concrete surfaces that allow for movement. The purpose of an expansion joint is to allow the concrete slab to expand and contract with temperatures changes without cracking the slab. Like i said in the intro these joints allow concrete pads to expand and contract during freeze thaw cycles. Vertical expansion joints are incorporated into the wall to account for expansion due to temperature changes.

Vacuum out the concrete expansion joints. These joints may be filled with flexible joint fillers. Removing old material from a concrete expansion joint concrete expansion joints are also known as isolation joints. Expansion joints should be located at intervals up to 90 feet.

They isolate different parts of the slab so that the whole slab can move without straining certain parts more than others. This article emphases on need of expansion.