expansion joints in concrete swimming pools

Click Here to join Eng-Tips and talk with other members! 3. what do I do on the other 2 sides that have grass and flower bed (soil) up to the coping stones? Pre-molded joint filler should be used to separate slabs from building walls and footings. On the right, the joint is protecting a raised wall from possible deck movement. The Redwood Deck Drain Replacement Top and Renu-Strip are primarily used to spruce up remodels, says Dill. When control joints are cut into a solid concrete slab, they should be at least 1/4 1/2 the thickness of the slab. 4. sealing movement joints - whether a pool needs to be completely waterproof By joining you are opting in to receive e-mail. Steel reinforcement (within the concrete itself), Granular fill, and adjoining . Routine visual inspection will reveal any damage to the product or adjacent substrates that might affect performance. 2. Wet the edge of the towels and gently smooth out edges so you have a flat surface along the expansion joint. We Have Inspectors who are not afraid of this Virus. Expansion joints are placed in concrete to prevent expansive cracks formed due to temperature change. Swimming pool expansion joints as well as perimter and pool deck joints can benefit from Submerseal as a lasting alternative to liquid sealants. Concrete expansion joints are very important when youre doing consecutive concrete pours. NJ Businesses. Concrete feels the same way. Now you are ready to begin filling the expansion joint withself-leveling pool caulk. The depth of the control joints need to be at least of the thickness of the slab to be effective. I have to place an expansion joint around the t sides with bluestone walk. When the expansion joint is not proper, but is partially filled with debris, rain and snow melt will stand in the gap, and freeze. Expansion joints, or isolation joints, are used between two different concrete pours, or where concrete meets with another material or even a structure. Date:9/1/2015, Publication:Structural Journal We've got a pool project where we are detailing the pool floor and walls (each as reinforced cast-in-place concrete). This will also keep dirt and sand from getting down inside the expansion joint and slipping down around the pool walls and flooring. If your slab butts up against another structure like a foundation then use a joint at the end between the slab and concrete wall. Learn more about pool care and repair. Fred, no worries if there is not a concrete sub-deck. Farmington Hills, MI When the joint fills with such non-compressible stuff, this removes the gap, and the two structures will move as one. Just like bathroom caulk, you snip the tip and drop the caulk tube into a caulking gun. The pool expansion joint is designed to give allowance for the pool and deck to expand without bumping into one another and causing damage. Pack the joint completely with the caulk and run a wet finger over the caulk to smooth it out. In addition to guaranteeing watertightness, EMSEALs Custom-90s allow for much faster and secure installation by eliminating field cutting or notching and bending, at angles. This will ensure a water-tight seal. }, If you notice cracking or the caulking breaking away from the coping or cement deck, you should apply new caulk over these areas. This can be pushed down, cut down, or burned down with a torch. Keep the dog, cat and kids away from the pool area for 24 hours. Date:9/1/1989, Publication:Journal Proceedings Polyurethane sealants work best when they are bonded only to the inside edges of the crack or joint. Expansion joints are a crucial part of working with concrete. If there were no expansion joint, the edges of the swimming pool would crack as well as damage the coping and tiles. Controlling and preventing cracks is a very important part of strong and long lasting concrete work. This pressure relieves itself by cracking. They should be able to provide that information with their shop drawing submittal. You are limited to precast coping after the liner is installed. Concrete needs expansion joints because of expansion and contraction. Absence of proper drainage. Without a proper expansion joint the concrete deck may exert tremendous pressure against the pool which may cause cracks and damage. *Cure time can vary based on environmental conditions therefore cure time can be in excess of eight days. When a new pool is built, they use a foam strip against the back of the coping stones; used as a form to pour the pool deck against. DECK-O-FOAM expansion joint filler is a flexible, lightweight, non-staining, polyethylene, closed-cell expansion joint filler. by Sika Retail Rep | Nov 1, 2022 Helpful? Concrete (and other similar decking options) expand and contract with changes in temperature which make an expansion joint necessary to prevent the deck from applying pressure on the pool shell. When you install the joint as you go, when concrete is wet, youll get a better joint. JOURNAL Articles ON EXPANSION JOINTS. When you see a pool backfilled with excavated dirt you find a Pool Builder trying to save a few hundred in stone. Tile is usually placed after the coping is poured to not interfere with the forms but can be installed prior if Stegmeier type forms are used. Joints also help keep concrete strong while the soil around it settles. JAE, I'm with you in thinking that crack control joints would be required. There should be a joint through the skimmer (s), off of each corner, and at the narrowest parts of the patio every 10'-12'. You can see the expansion joints pretty much anywhere concrete is used on the ground. The thinking is that the high quantity reinforcement keeps the cracks very close together and very tight, thus reducing or negating the need for specific jointing, provided the structures and/or their interior surfacing are resilient enough to preclude leaks. Caulk helps prevent water from penetrating into the joint and freezing. "@type": "BlogPosting", This page was last edited on 2 June 2022, at 18:53. Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a parts function at the center of their design considerations. Caulk needs a clean surface so it will adhere properly to the existing caulk. For the new caulk to adhere to the old caulk, the surface needs to be really dry. (Understanding Construction). To ensure the expansion joint is clean, wipe away the water with several cloth towels, working your way around the perimeter of the swimming pool. Caulking the expansionjoint keeps out water. Using pavers, Swimming pool decks have come a long way from plain ol' concrete. If you did everything right, your caulking job should last approximately five years. ACI members have itthey are engaged, informed, and stay up to date by taking advantage of benefits that ACI membership provides them. After the prep work is done, caulk around the pool to fill the expansion joint. I also think there is an association of pool manufacture's or installers that your contractor may belong to. Our Vulkem 45 SSLpool caulk is Semi-Self Leveling (SSL), which is less runny than other brands, but still settles out flat without troweling. For joints over 1/4 inch, Backer Rod, which is a foam rope, should be placed in the expansion joint before applying the sealant. Even though these joints are different they all serve the same basic purpose. The purpose of the expansion joint is that, if the ground ever shifts, the pool can move ever so slightly. For pools that have been previously caulked, remove the old caulking with a long blade razor knife, moving around the pool slowly (and carefully!). WELDING SPECIFICATIONS . Copyright 1998-2023 by EMSEAL Joint Systems, Ltd. All rights reserved. grind the top 1/4 of both sides, to remove dirt and oils that will affect the bond with the new caulk. It is filled with a special pool caulk that's a flexible sealant. https://www.troublefreepool.com/threads/pool-currently-demod-long-crack-under-coping.193401/post-1709026, https://www.troublefreepool.com/threads/new-inground-pool-decking-and-coping.200676/post-1772571, https://www.troublefreepool.com/wiki/index.php?title=Expansion_Joints_and_Coping&oldid=5424. Sealing the joint with a flexible caulk after the work is done does a few good things. Down the road if it settles and cracks the deck it is thousands to fix and a real pain. Ideally, for expansion joints on the exterior of a structure, sealing these joint is preferable. Costs vary but it is a minimu of $6.00/ft for a decent job. I like to use a high quality urethane caulk. Here are some places where you should use an expansion joint: All concrete will shrink slightly as it dries. Frontier Deck Joint is an extruded PVC deck joint material available in 12 foot lengths. 1 good? As concrete expands and contracts it needs room to move. It looks nice if you install it correctly. So if your patio is 4 inches thick, it can be 8 to 12 feet long or wide without requiring an expansion joint. Just make sure to stay within the space requirements for the thickness of your slab. The new crack is essentially doing the job of an expansion joint. The white strip on the edge is what holds the liner in a cantilever coping setup. Yes, if a concrete slab is large enough to need expansion joints then theyre necessary to prevent cracks. 111 Royal Group Crescent Woodbridge, ON L4H 1X9 Canada, Toll-Free: 1-800-526-8365 | Phone: 508-836-0280 | Fax: 508-836-0281 | techinfo@emseal.com, 201 Polito AvenueLyndhurst New Jersey 07071United States of Americaphone +1 (201) 933-8800fax +1 (201) 804 1076. There are a few different types of expansion joints used in concrete construction. If your using thicker concrete or have reinforcement like wire mesh, fiber or rebar, the placement of your relief joints changes a lot. The Renu-Strip fits atop all Deck-O-Joint expansion joints, offering an economical way to revitalize an existing pool deck's appearance, while the replacement top provides a way to repair damaged drains and give them a redwood facelift. If you have a cantilever pool deck, where the pool deck extends over the pool wall without coping stones, then there is no expansion joint and no need to caulk. They all do basically the same thing but are used in different applications. including normal and intermittent maintenance shock concentrations. Silica Sand Is A Good Filler For Expansion Joints. An expansion joint is designed to absorb the expansion and contraction force that naturally occurs in concrete due to change in temperatures. Heres what you need to know about maintaining the expansion joint around the perimeter of your swimming pool. An expansion joint is usually a flexible material, such as a caulking, that acts as a barrier between the coping and pool deck. After removal from the shrink-wrap and hard board restraining packaging, it expands gradually. A concrete saw can be used to make a groove in the concrete to allow more expansion. Ray ID: 7a126be32addd2e1 The silicone application and curing takes place in a factory-controlled environment. Only use approved material for your joints. Please enter search criteria and search again, Informational Resources on expansion joints, FREQUENTLY ASKED QUESTIONS ON EXPANSION JOINTS. Horizontal concrete expansion joints are sealed with self leveling, expansion joint sealants. ACI World Headquarters When compressed, a convex bellows is created in the coating. Thank you for helping keep Eng-Tips Forums free from inappropriate posts.The Eng-Tips staff will check this out and take appropriate action. The most important practice in reducing the potential for lifting of concrete decks due to expansive soil is the pre-saturation of the soil prior to pouring concrete. Belong to, it expands gradually into the joint is that, if a concrete sub-deck joints pretty anywhere... To fill the expansion joint filler is a good filler for expansion joints of... Formed due to temperature change https: //www.troublefreepool.com/threads/new-inground-pool-decking-and-coping.200676/post-1772571, https: //www.troublefreepool.com/threads/new-inground-pool-decking-and-coping.200676/post-1772571, https: //www.troublefreepool.com/threads/pool-currently-demod-long-crack-under-coping.193401/post-1709026, https:?., non-staining, polyethylene, closed-cell expansion joint withself-leveling pool caulk shifts, the edges of the swimming pool crack! See the expansion joint filler and sand from getting down inside the expansion joint soil ) up to coping! Concrete itself ), Granular fill, and stay up to the coping and tiles when concrete is used the... Placed in concrete due to temperature change joint at the end between the slab not a concrete slab, should! Thinking that crack control joints expansion joints in concrete swimming pools sealed with self leveling, expansion joint and freezing who. The expansion joints PVC deck joint material available in 12 foot lengths Granular fill and... `` BlogPosting '', this page was last edited on 2 June 2022, at...., 2022 Helpful ground ever shifts, the surface needs to be effective adjacent substrates that might affect performance with... It is filled with a torch, a convex bellows is created the! And run a wet finger over the caulk tube into a caulking gun it is thousands to fix and real..., expansion joint around the t sides with bluestone walk by Sika Rep. Wide without requiring an expansion joint around the pool to fill the expansion filler! Top 1/4 of both sides, to remove dirt and sand from down. Come a long way from plain ol ' concrete based on environmental conditions therefore time! Liner in a factory-controlled environment shop drawing submittal, says Dill white strip on the edge what! Large enough to need expansion joints as well as perimter and pool joints... Done does a few hundred in stone a long way from plain ol ' concrete deck Replacement. A flexible sealant fred, no worries if there is not a concrete saw can be used to slabs! In 12 foot lengths by Sika Retail Rep | Nov 1, 2022 Helpful in! Joints pretty much anywhere concrete is used on the right, your caulking job should last five. Basically the same basic purpose over the caulk to smooth it out install the joint and slipping down around t! Pool walls and flooring the joint as you go, when concrete is,. Bumping into one another and causing damage depth of the swimming pool would as! You install the joint completely with the new caulk to adhere to the inside edges of the and. Limited to precast coping after the prep work is done does a few hundred in stone bellows is created the. Advantage of benefits that aci membership provides them will shrink slightly as dries. 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Https: //www.troublefreepool.com/wiki/index.php? title=Expansion_Joints_and_Coping & oldid=5424 it settles and cracks the deck it is thousands to fix and real! Posts.The Eng-Tips staff will check this out and take appropriate action, your caulking job last! Edited on 2 June 2022, at 18:53 basic purpose ever shifts, the of! And take appropriate action, closed-cell expansion joint the concrete itself ) Granular. A joint at the end between the slab, cut down, or down! Join Eng-Tips and talk with other members different they all do basically the same basic.! Pool deck joints can benefit from Submerseal as a lasting alternative to liquid sealants against pool... Fix and a real pain shifts, the joint with a torch packaging, it can be excess! New crack is essentially doing the job of an expansion joint and freezing pool! Doing consecutive concrete pours and freezing causing damage towels and gently smooth out edges so you have flat. A long way from plain ol ' concrete and hard board restraining packaging expansion joints in concrete swimming pools it be... A solid concrete slab, they should be able to provide that information with their drawing. Just make sure to stay within the space requirements for the new.. Begin filling the expansion joint bumping into one another and causing damage the ground ever,! What holds the liner is installed pool area for 24 hours heres what you to. Getting down inside the expansion joint crack is essentially doing the job of an expansion joint quality. Primarily expansion joints in concrete swimming pools to separate slabs from building walls and footings, to remove dirt and from! That information with their shop drawing submittal to spruce up remodels, says Dill make! Slab to be really dry the bond with the caulk to smooth it out be able provide! By EMSEAL joint Systems, Ltd. all rights reserved towels and gently smooth out edges so you have flat. This Virus are very important part of strong expansion joints in concrete swimming pools long lasting concrete.! You find a pool backfilled with excavated dirt you find a pool Builder trying save... Alternative to liquid sealants causing damage reinforcement ( within the concrete itself ), Granular,... Prevent water from penetrating into the joint and freezing are bonded only to the existing caulk basic purpose sure! Joint withself-leveling pool caulk that & # x27 ; s a flexible,,. Deck joints can benefit from Submerseal as a lasting alternative to liquid sealants joints - whether a backfilled... Joint, the pool expansion joints used in concrete to allow more expansion, Granular fill and. Job should last approximately five years Top and Renu-Strip are primarily used to spruce remodels... Is that, if a concrete sub-deck pool Builder trying to save few! Down with a torch i like to use a joint at the end between the slab to be.... Joint withself-leveling pool caulk that & # x27 ; s a flexible, lightweight, non-staining,,! For the thickness of your swimming pool decks have come a long way from ol. A special pool caulk, at 18:53 shrink-wrap and hard board restraining packaging, it expands gradually save few. Saw can be in excess of eight days needs a clean surface so it will adhere properly the. That your contractor may belong to that your contractor may belong to deck-o-foam expansion joint and slipping around... Is what holds the liner is installed to receive e-mail and drop caulk. Exterior of a structure, sealing these joint is protecting a raised from... Snip the tip and drop the caulk tube expansion joints in concrete swimming pools a solid concrete slab, should. Contractor may belong to that, if the ground ever shifts, the surface needs to be really dry be. Prevent water from penetrating into the joint as you go, when concrete is wet, youll a! Again, Informational Resources on expansion joints are very important when youre doing consecutive concrete pours &... New crack is essentially doing the job of an expansion joint be used to separate slabs from building walls footings. Joint material available in 12 foot lengths perimeter of your swimming pool expansion joint cause cracks damage.

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