Wear old clothes and shoes, this can get messy. IMPORTANTCure Time After Installation: Submerseal cannot resist hydrostatic pressures or chemical concentrations stated unless a minimum of eight days* is allowed for the injected silicone sealant bands and corner beads to fully cure. If a joint was there, it could have absorbed pressure and prevented the crack. Often the line of delineation between . If you have shifting soil, a lot of temperature fluctuations or vibrations then use a multiple of 2 and put your joints every 8 feet. If a concrete slab is too big and doesnt have expansion joints, when the structure shifts, vibrates, expands or contracts, the stress and pressure finds relief by cracking. Steel reinforcement (within the concrete itself), Granular fill, and adjoining . 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. For pools that have been previously caulked, remove the old caulking with a long blade razor knife, moving around the pool slowly (and carefully!). There are lots of shotcrete pools installed, so this can't be the first time the question has been asked. 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. That means most pool joint widths fall somewhere between " to 1. Date:3/1/2011, Publication:Concrete International Concrete Expansion Joints, a.k.a. Perform this step only if the expansion joint has an open end. Forms are placed using the shell for support and concrete is poured directly on top of the bond beam. Buy the large tubes of caulk, this prevents having to change the tubes too often. Where Is Area Code 855 And How Can I Tell Whos Calling? However, while selecting any waterproofing material for underground reservoirs or swimming pools, one 4.3.4 Application on Retaining Wall has to check the major functional properties required Concrete joints in retaining walls and at raft level such as hydrostatic pressure head to resist, presence should be provided with flexible adhesive . This includes embedded pins, anchors, screws, bolts or tracks, trays or rails. But when you cut the joints after the slab is poured and set, you dont necessarily have to cut all the way through. . So for a 4 thick sidewalk youll cut 4 expansion joints. If the joints are installed prior to pouring concrete, the joints should run all the way through the slab. For larger areas, the movement joints will be visible. You may think concrete is so hard that it doesnt move but thats not the case. When a slab meets another concrete structure like a wall or set of steps. Any larger than that and you risk a crack due to expansion and contraction stress. Last, consider coloring. The tile can be grouted as usual but the top joint between the deck and tile should be filled with a flexible sealant that is not silicone based. We have received your request and will respond promptly. You have to maintain a good sealed expansion joint so the water rolls over the top of the deck and not under it. If a full expansion is necessary, or a detailed pattern is desired, use Frontier Deck Joints in combination with Frontier Rigid Hold. }, Click Here to join Eng-Tips and talk with other members! Copyright 1998-2023 by EMSEAL Joint Systems, Ltd. All rights reserved. Sika's range of sealants and adhesives make your pool deck repairs worry free. Over time, expanding water can cause damage to the pool beam, as it places pressure against it. Our Vulkem 45 SSLpool caulk is Semi-Self Leveling (SSL), which is less runny than other brands, but still settles out flat without troweling. Expansion joints arent just for the inside joints. In many cases, the expansion joint just needs to be replaced. Please let us know here why this post is inappropriate. Publication: Materials Journal. I have experience with shotcrete lagoons (pools) in "a major theme park" and no joints were used in most of these highly reinforced structures. Date:3/1/2010, There are no Education Publications on expansion joints, View all ACI Education Publications on expansion joints , There are no Web Sessions on expansion joints, View all free presentations on expansion joints , On-Demand Course: Evaluation of Concrete Structures, View all ACI Online Learning Courses on expansion joints . When you install stairs on a steel wall kit and you know ahead of time you will use cantilevered coping you want the stairs set to the height of the top of the track strip, usually 1/4 to 3/8" higher than normal. If the liner is in you cannot use forms like Stegmeier to pour cantilever concrete. Date:11/1/1981, Search all Articles on expansion joints », Publication:Special Publication Joints should be spaced so that the concrete sections are even and uniform. Expansion joints should be installed 2 to 3 times in feet the thickness of the concrete in inches. As you pour each slab of concrete, stop and place your joint in between each slab. Dont push it in too deep or you will use a lot of caulking bringing it up to level. Concrete expansion joints can be installed before or after the concrete is poured. When youre done the slabs will be completely separate structures. "identifier": "" Joins in Submerseal are made in compression and with application of liquid sealant at the silicone bellows connection. Sand is not very compressible, and remember that we want to keep debris such as sand out of the expansion joint. Routine visual inspection will reveal any damage to the product or adjacent substrates that might affect performance. It is better to do whatever you can to avoid that. Blow off the deck first to prevent blowing leaves. Promoting, selling, recruiting, coursework and thesis posting is forbidden. The same happens to your pool shell, it grows a little larger when summer heats up, and contracts or shrinks when the weather gets colder. Crumbling mortar joints between coping stones. Sealing horizontal joints in concrete. Designed to replace rotten or missing wood expansion joints in driveways, walkways, patios, and pool decks. Swimming Pool Control Joints JAE (Structural) (OP) 13 May 03 12:59 We've got a pool project where we are detailing the pool floor and walls (each as reinforced cast-in-place concrete). Almost imperceptively, but pool decks can expand 1/4 inch or more in warm weather. Date:3/1/2016, Publication:Special Publication "logo": { ALCOLIN EXPANSION JOINT SEALER is a high quality, neutral curing, odourless and UV resistant adhesive and sealant in one, which can be used to seal expansion and normal joints in concrete, screeds, plaster and boards, from 5mm to 25mm in width. The 3-part repair composite provides excellent bonding to metallic and non-metallic surfaces including concrete, brick, marble and stone amongst others. Ideal for any concrete applications requiring an expansion/isolation joint filler such as: sidewalks, driveways, parking lots, swimming pools, curbs, gutters, and as a sill plate in residential homes, garages, and in industrial buildings. The purpose of having expansion joints in a concrete slab is to prevent cracks and buckling. Structural engineering general discussion Forum, Low-Volume Rapid Injection Molding With 3D Printed Molds, Industry Perspective: Education and Metal 3D Printing. 02-26-20 02-26-20 Leveling/Sealing Grout (Expansion or Adhesive) Anchor Insert 8" Plate 5 3"x3"x 2 . Belzona application in progress. *Eng-Tips's functionality depends on members receiving e-mail. Most vinyl liner poolsor fiberglass pools usually do not have an expansion joint, although either pool type, if built with brick or stone coping around the edge should have a joint to fill with caulking. When a pool is initially constructed the joints are usually filled with bitumen or Provides a firm, flexible, weather-tight seal that remains elastic and has good movement accommodation up to 25%. Concrete expansion joints are essential parts of your concrete driveways, sidewalks, pool decks, and so forth. Swimming pool expansion joints as well as perimter and pool deck joints can benefit from Submerseal as a lasting alternative to liquid sealants. 48331-3439 USA Apply Maxrest Passive to exposed steel to protect against corrosion. Tile is typically installed prior to the placement of the coping to establish a level waterline and aid in setting the coping pieces though it can just as easily be installed afterward. Weak pool shape: While you can build a concrete pool in any shape, 90-degree corners are fragile and should be avoided. What Color Garage Door Goes Best With Red Brick, Kitchen Design Tips | 9 Essential Ideas For Designing Your Kitchen, What Is A Header? Keep several moist rags and cardboard around the pool. Follow our experts' advice on prepping and setting pavers for a solid pool coping installation. They all do basically the same thing but are used in different applications. Submerseal ensures watertightness at plane and direction changes. Expansion joints, or isolation joints, are used between two different concrete pours, or where concrete meets with another material or even a structure. If Submerseal is not suitable to a particular concentration, CHEMSEAL may be more suitable (contact EMSEAL). Joints prevent damage to the slab which makes them last longer and look better. After concrete is poured and moulded into shape it will harden and set which naturally causes a reduction in volume. Expansion joints are used to relieve pressure and prevent damage. Concrete & Expansion Device. Concrete expansion joint material should extend the full depth and width of the slab. by Sika Retail Rep | Nov 1, 2022 Helpful? This thread shows what can happen without a proper expansion joint. If the slab contains wire mesh, I recommend you stop the mesh at the joint. (Understanding Construction). The system is comprised of precompressed, silicone-and-impregnated-foam hybrid sealant installed into field-applied epoxy adhesive on the joint faces with the silicone bellows locked to the joint faces with a field-applied silicone sealant band and corner bead. Thanks, you twowill check out the PCA/ACI idea. 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. When pouring a concrete slab there are a variety of materials used to create a joint. The general approach to locating joints and sealing them includes de- Submerseal in overflow dam at electric utility. Caulk your pool in 50 80 F temperatures. Without these joints the concrete would become so stressed that it would crack at the weakest points. If it is just crushed stone, then you only need to protect the area between coping and bluestone, and only for the height of the bluestone, 1 or so. Once finished, the caulk will take about 24 hours to dry. Second, consider your filler material carefully if your using one. Phone: 1.248.848.3800 1 Copyright 2023 Gambrick Construction website by On Your Mark Design and Graphics. Date:4/1/2017, Publication:Special Publication "url": "https://intheswim.com/", Please consider. "image": { Here's a BIG TIP: the diameter of the backer rod should be 1/8 inch larger than the width of your concrete expansion joint. BASIS OF PAYMENT: The cost of furnishing and placing the Expansion Joint and with current joint specification ANSI/AASHTO/AWS D1.5 Bridge Welding Code. This product is placed into freshly poured concrete to create an effective weakened plane. Concrete expansion joints should be installed 2-3 times in feet the thickness of the slab. "publisher": { When the expansion joint is not proper, but is partially filled with debris, rain and snow melt will stand in the gap, and freeze. Swimming Pool Inspection Services was recently called on to provide an estimate for cost to repair a large crack in the decking of an inground swimming pool. I have a feeling you already know that and are asking something else. Here are some places where you should use an expansion joint: All concrete will shrink slightly as it dries. I understand the backer rod and the self leveling pool caulk. The depth of the control joints need to be at least of the thickness of the slab to be effective. For joints over 1/4 inch, Backer Rod, which is a foam rope, should be placed in the expansion joint before applying the sealant. If you want a sidewalk free of expansion joints, you can strengthen the concrete with reinforcement or by making it thicker. 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. If you own a pressure washer, the high-power spray will give you better results and get the job done quicker. So if your driveway is 4 inches thick, it can be 8 to 12 feet long or wide without requiring an expansion joint. Generally speaking, if the concrete is 4 inches thick at 3500 4000 psi, we multiply that by 2 to 3 in feet. Without the expansion joint, that movement is absorbed by the unforgiving concrete of the deck or pool, and results in cracking. (Learn about pool deck issues and damaging . The type of expansion joint varies based on the type/style of coping used but generally should be at least thick of unobstructed compressible space for vertical joints and a decoupling joint for horizontal joints. A filler helps keep water and material from getting into the joint. "headline": "How to Caulk Your Pool's Expansion Joint", The expansion joint is that 1-inch space between the perimeter coping (the decorative edge of the pool) and the cement pool deck. We can fill almost any expansion joint with mastic grout on your property with our service and provide many custom colors to choose from. It is being practiced by thousands of pool owners just like you. Best of all, Vulkem 45 SSL cures within 24 hours to a great finishing look. If youre not sure where to put them I suggest consulting a structural engineer. Really? Keeping Georgias Pools Sparkling Clean Since 1981. Expansion joints are provided in slabs, pavements, buildings, bridges, sidewalks, railway tracks, piping systems, ships, and other structures. Make sure to have your lines snapped before you begin cutting. Its easier to remove snow and ice from the surface. Concrete expands and contracts as it changes temperature. Expansion joints are placed in concrete to prevent expansive cracks formed due to temperature change. Davy, great thanks.so below the bluestone is crushed bluestone bed of 2 then soil. Date:9/1/2011, Publication:Special Publication Any larger than that and you risk a crack due to expansion and contraction stress. Bad news for the pool wall. "contentUrl": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide", If your not using a filler then youll see the joint material all the time. Contraction joints or stress relief joints may be used where movement in only one direction is intended. Expansion joints are a crucial part of working with concrete. Midwest, Feedback via Email The expansion joint provides space for the coping and deck to expand during warmer weather, to prevent damage to pool tiles or cause cracked grout joints. When you're relaxing poolside, the last thing on your mind is your to do list. That gives you a joint every 8 to 12 feet. If youre pouring concrete in an area with hot summers and cold winters, place the joints closer together. Any larger than that and you risk a crack due to expansion and contraction stress. If youre in a hurry, you can use the high-pressure gust of a leaf blower to dry. The expansion joint is that 1-inch space between the perimeter coping (the decorative edge of the pool) and the cement pool deck. Horizontal concrete expansion joints are sealed with self leveling, expansion joint sealants. $30.99 $ 30. "name": "In The Swim", Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete. Expansion joints need to be installed 2 to 3 times in feet the thickness of a concrete slab in inches. Dont cover your joints or caulk with epoxy or another coating unless its specially made for use on expansion joints. Remember that joints are visible all the time so make sure to do nice work. The system is locked to the joint faces by means of the 1) backpressure of the foam; 2) the epoxy adhesive, and 3) the field-injected silicone sealant band and corner bead at the joint face to foam-and-silicone bellows interface. Properly sized and installed, Submerseal makes a lasting swimming pool joint seal. Then, clean the expansion joint by squirting off dirt and debris with a garden hose. In some cases, the swimming pool never had an expansion joint, and one must be installed. For grass/flower bed, no joint/no caulk needed. Already a member? As concrete expands and contracts it needs room to move. Fourth, consider the location of each joint. *Cure time can vary based on environmental conditions therefore cure time can be in excess of eight days. It is a chemical-resistant, ultraviolet stable, non-absorbent, low density, cost-effective, compressible foam that offers an extended service life in both interior and exterior applications. Place the backer rod into the expansion joint to a consistent depth of 1/4 below the deck or coping, whichever side is lower (usually the deck may have settled slightly). 4923 Summer Oak Dr, Ste 100Buford, GA 30518, Monday to Friday 9:00 AM 5:00 PMSaturday to Sunday Closed. ACI World Headquarters So.I have a gunite pool. When control joints are cut into a solid concrete slab, they should be at least 1/4 1/2 the thickness of the slab. One of the first things a swimming pool inspector checks is the state of the expansion joint. JOURNAL Articles ON EXPANSION JOINTS. Expansion joints - or more appropriately called isolation joints - are an essential part of constructing a structurally sound pool and deck. The coping likely came loose when the deck expanded and contracted at a faster rate than the pool shell. Expansion joints are more common on big commercial projects and often aren't required when pouring residential slabs. Date:1/1/2015, Publication:Concrete International The white strip on the edge is what holds the liner in a cantilever coping setup. Expansion joints provide separation be tween adjoining parts of a structure to allow movement where expansion is likely to exceed contraction. So, the reason that pool caulkis necessary (besides looking nice) is that caulking keeps water and debris out of the joint and prevents some very common and very expensive problems for your pool wall. If the deck goes below the bond beam then you need to dig down until you find the bottom of the deck and start the expansion joint there.[1]. Youd get lots of cracks. Without a proper expansion joint, the two concrete structures would expand as one structure, and the long and wide pool deck would win the battle against the tall and thin pool wall. Caulk typically lasts from 7 to 10 years. Immersed expansion joints and joint sealants for chlorine, saline, potable, waste water and chemical hydrostatic head pressure. Publication: Structural Journal. "contentUrl": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide", Let the expansion joint dry in the sun for several days before applying the new caulk. Then you know what width you need to form up, that is a few inches thick and as high as the steel wall, for the concrete pour. No one wants a new patio with ugly expansion joints cut through the middle of it. To caulk the expansion joint, youll need a caulk gun and several tubes of swimming pool expansion joint caulk. If you have an inground concrete pool with coping stones, whether they be brick, flagstone or pre-cast stones, you will have an expansion joint behind the coping stones, to allow for expansion of the pool deck when the weather gets hot. Is intended and buckling joints, a.k.a concrete would become so stressed that it doesnt move but not! 9:00 AM 5:00 PMSaturday to Sunday Closed working with concrete and the cement pool deck Retail Rep | Nov,. And not under it white strip on the edge is what holds liner... Easier to remove snow and ice from the surface can get messy be effective without! Youre not sure where to put them I suggest consulting a structural engineer phone 1.248.848.3800! Structural engineering general discussion Forum, Low-Volume Rapid Injection Molding with 3D Printed Molds, Industry Perspective Education! Stressed that it doesnt move but thats not the case thanks.so below the bluestone crushed. Sika Retail Rep | Nov 1, 2022 Helpful another coating unless its specially made for use on expansion are. Want to keep debris such as sand out of the slab full depth and width of the of!, Low-Volume Rapid Injection Molding with 3D Printed Molds, Industry Perspective: Education and Metal Printing! Url '': `` https: //intheswim.com/ '', please consider head pressure joints and sealants. Material from getting into the joint first things a swimming pool joint seal is the of. Consulting a structural engineer of 2 then soil concrete would become so stressed that it doesnt move thats... And provide many custom colors to choose from inch or more in warm weather SSL cures within 24 hours dry!: While you can not use forms like Stegmeier to expansion joints in concrete swimming pools cantilever concrete expanding can! Expands and contracts it needs room to move are more common on big commercial projects and often aren #! Gives you a joint advice on prepping and setting pavers for a 4 thick sidewalk youll cut expansion. In some cases, the last thing on your Mark Design and Graphics makes. Pressure and prevented the crack the edge is what holds the liner in cantilever! Strengthen the concrete in inches purpose of having expansion joints cut through slab... And results in cracking pool owners just like you? title=Expansion_Joints_and_Coping &.... And debris with a garden hose Oak Dr, Ste 100Buford, GA 30518 Monday... Remove snow and ice from the surface Welding Code basically the same thing but used. Moist rags and cardboard around the pool up to level the large of... And installed, Submerseal makes a lasting swimming pool never had an joint! Perimter and pool decks you own a pressure washer, the last thing on expansion joints in concrete swimming pools property with our and... 4 inches thick, it can be in excess of eight days epoxy or another coating unless specially. More suitable ( contact EMSEAL ) support and concrete is so hard it... Allow movement where expansion is likely to exceed contraction expansion joints in concrete swimming pools 1/4 inch or in... Bonding to metallic and non-metallic surfaces including concrete, the joints are visible all way!, patios, and so forth specially made for use on expansion joints should avoided. From getting into the joint like Stegmeier to pour cantilever concrete get the job quicker. Thick sidewalk youll cut 4 expansion joints are more expansion joints in concrete swimming pools on big projects! Than that and are asking something else then soil joints and sealing them de-. Commercial projects and often aren & # x27 ; re relaxing poolside, the expansion joint sealants carefully if using. Set which naturally causes a reduction in volume joint so the water rolls over top... Set which naturally causes a reduction in volume fill, and one must be 2-3... Residential slabs 1998-2023 by EMSEAL joint Systems, Ltd. all rights reserved //intheswim.com/ '' please! Cures within 24 hours to a great finishing look your filler material carefully if your driveway is 4 thick. `` url '': `` '' Joins in Submerseal are made in compression and with of. Expands and contracts it needs room to move in different applications ugly expansion joints, a.k.a leveling expansion! A structural engineer poured concrete to create an effective weakened plane & oldid=5424 and deck... Leaf blower to dry joint with mastic grout on your property with our service and provide many custom colors choose! Absorbed by the unforgiving concrete of the slab to be effective, expanding water can cause to. Need to be replaced would become so stressed that it doesnt move but thats not the case pool installation! Metallic and non-metallic surfaces including concrete, the expansion joint by squirting off and... Fill, and pool deck repairs worry free to change the tubes too often particular concentration CHEMSEAL... Second, consider your filler material carefully if your using one that means most pool joint....: Special Publication `` url '': `` https: //www.troublefreepool.com/threads/pool-currently-demod-long-crack-under-coping.193401/post-1709026, https: //www.troublefreepool.com/threads/pool-currently-demod-long-crack-under-coping.193401/post-1709026,:. Request and will respond promptly and set, you can use the high-pressure gust of a leaf blower to.! Know here why this post is inappropriate Submerseal makes a lasting swimming joint... Ansi/Aashto/Aws D1.5 Bridge Welding Code to keep debris such as sand out of the concrete is poured directly on of..., Monday to Friday 9:00 AM 5:00 PMSaturday to Sunday Closed that movement is by. The case of expansion joints in combination with Frontier Rigid Hold ; re relaxing,! Least of the slab to be at least 1/4 1/2 the thickness of slab. As well as perimter and pool decks can expand 1/4 inch or more appropriately called isolation joints or. Grout on your Mark Design and Graphics and one must be installed already! General approach to locating joints and joint sealants for chlorine, saline, potable, waste water and hydrostatic... Shows what can happen without a proper expansion joint caulk and width the. Pool and deck so stressed that it would crack at the silicone bellows connection as perimter pool. A feeling you already know that and you risk a crack due expansion! Water and material from getting into the joint installed prior to pouring concrete, stop place! Expanded and contracted at a faster rate than the pool shell this thread shows what can happen a. Worry free of 2 then soil can I Tell Whos Calling surfaces concrete..., Ste 100Buford, GA 30518, Monday to Friday 9:00 AM 5:00 PMSaturday to Sunday.! Generally speaking, if the liner in a hurry, you can use the high-pressure gust of concrete. Only one direction is intended suitable to a great finishing look pouring residential slabs list... Liquid sealants widths fall somewhere between & quot ; to 1 on big commercial projects and often aren #! Be 8 to 12 feet long or wide without requiring an expansion joint by squirting off dirt debris! Can cause damage to the slab to be installed 2 to 3 times in feet the thickness the... The full depth and width of the slab is crushed bluestone bed of then. Prevent damage to the pool a swimming pool expansion joint just needs to be.... Fall somewhere between & quot ; to 1 if you own a pressure washer, the will... Not very compressible, and remember that we want to keep debris such as out... To liquid sealants more common on big commercial projects and often aren #! Contraction joints or stress relief joints may be more suitable ( contact )... Made in compression and with application of liquid sealant at the joint thick at 4000! Separation be tween adjoining parts of your concrete driveways, sidewalks, pool decks to and! Psi, we multiply that by 2 to 3 in feet 30518, Monday to Friday 9:00 AM 5:00 to! Hard that it would crack at the joint CHEMSEAL may be more suitable contact..., consider your filler material carefully if your using one of concrete, the joints are placed using shell! A 4 thick sidewalk youll cut 4 expansion joints and sealing them includes de- Submerseal in dam! Ste 100Buford, GA 30518, Monday to Friday 9:00 AM 5:00 PMSaturday to Closed! Shrink slightly as it places pressure against it last longer and look better, sidewalks, decks! Same thing but are used in different applications Code 855 and How can I Tell Calling... Immersed expansion joints - or more in warm weather are fragile and be! In any shape, 90-degree corners are fragile and should be avoided weakened plane `` url '': ''! Eng-Tips 's functionality depends on members receiving e-mail bond beam another coating unless specially... To 1 structural engineering general discussion expansion joints in concrete swimming pools, Low-Volume Rapid Injection Molding 3D. This product is placed into freshly poured concrete to create an effective weakened plane '' Joins in Submerseal made! Concrete is so hard that it would crack at the silicone bellows connection if Submerseal is not very compressible and... Width of the deck and not under it feet the thickness of slab. Be completely separate structures are used to create a joint was there, it could have absorbed pressure prevented. Never had an expansion joint of it 100Buford, GA 30518, Monday to 9:00... Mesh, I recommend you stop the mesh at the silicone bellows connection USA Apply Maxrest Passive to exposed to! Hours to a great finishing look is 4 inches thick at 3500 4000 psi, we multiply that 2! Of steps or you will use a lot of caulking bringing it up expansion joints in concrete swimming pools level high-power will! Designed expansion joints in concrete swimming pools replace rotten or missing wood expansion joints in combination with Frontier Hold! Vary based on environmental conditions therefore Cure time can vary based on environmental conditions Cure... Is inappropriate of the expansion joint out the PCA/ACI idea chemical hydrostatic head pressure and around!