How Often Do You Need Expansion Joints in Concrete? | Kaloutas

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How Often Do You Need Expansion Joints in Concrete?

 How Often Do You Need Expansion Joints in Concrete?

At Kaloutas, we know that inte­ri­or and exte­ri­or con­crete floor­ing is expen­sive. For that rea­son, you need to pro­tect your invest­ment from the most com­mon form of dam­age in con­crete – crack­ing. The most pop­u­lar way to pro­tect against ran­dom crack­ing is the instal­la­tion of expan­sion joints. In this post, we’ll talk more about expan­sion joints and answer the ques­tion of how often you need them in your slab of concrete.

What are Expan­sion Joints?

As con­crete dries, it shrinks and forms to the topog­ra­phy of the ground it was poured on. Some parts of the con­crete can shrink more than oth­ers, pulling and stress­ing oth­er parts of the slab. Sim­i­lar­ly, as con­crete expe­ri­ences dif­fer­ent tem­per­a­ture changes, it expands and con­tracts – some­times more in some parts of the slab com­pared to oth­ers. Expan­sion joints are full-width cuts installed in pro­fes­sion­al con­crete floors and walls that allow the con­crete to expand and con­tract with­out crack­ing ran­dom­ly. They iso­late dif­fer­ent parts of the slab so that the whole slab can move with­out strain­ing cer­tain parts more than others.

How are Expan­sion Joints Created?

Expan­sion joints are cut depend­ing on the tem­per­a­ture around the con­crete. In hot weath­er, expan­sion joints are usu­al­ly cut with groov­ing tools while the con­crete is still wet. In cool­er weath­er, expan­sion joints can be cut with saws after the con­crete has hard­ened a lit­tle. Expan­sion joints cut through the entire width of the slab and are then filled with some sort of filler.

How Often Do You Need Expan­sion Joints?

Usu­al­ly, expan­sion joints should be no far­ther apart than 2 to 3 times (in feet) the total width of the con­crete (in inch­es). So for a 4 inch thick con­crete slab, expan­sion joints should be no more than 8 to 12 feet apart. They should also be placed around struc­tures that go deep­er than the con­crete slab, such as columns or walls.

Con­tact Kaloutas

Expan­sion joints are too impor­tant to be installed poor­ly. If you need indus­tri­al floor­ing and expan­sion joints installed, con­tact Kaloutas’ pro­fes­sion­al floor­ing con­trac­tors. We’d love to help you with your project, and can ensure qual­i­ty results!

Kaloutas is an ide­al ven­dor for these needs:

Kaloutas is New Eng­land’s pre­mier con­trac­tor for com­mer­cial & indus­tri­al paint­ing, floor­ing, and relat­ed ser­vices. Estab­lished in 1987, Kaloutas has become a trust­ed resource for gen­er­al con­trac­tors, facil­i­ties man­agers, and build­ing own­ers from Con­necti­cut to Maine. Our team prides itself on high qual­i­ty work­man­ship, jobs done on time & bud­get, and tack­ling com­plex projects that oth­er con­trac­tors don’t have the expe­ri­ence or resources to han­dle. Con­tact us today for a paint­ing or floor­ing esti­mate, or give us a call at 9785321414 to learn more.

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