For detailed instructions, refer to CLAY-TITE BACKFILLED WALL INSTALLATION GUIDELINES. Interior damp proofing. h B6 d Finished waterproofing liquid coatings can be inspected. WebResistant to chemicals: Bentonite waterproofing is resistant to chemicals, therefore, it will not be affected by detergent chemicals among other household chemicals. Application is not recommended in areas sensitive to moisture infiltration. This makes it a very effective solution for two main reasons. When bentonite and water touch, the clay expands its volume and turns into a gelatinous mass. %%EOF USES * What is a Free Estimate and Inspection? Application Video. This waterproofing method has been employed for more than 75 years, but its popularity has recently increased. Our project included turning this space into a basement suite. This polyurethane liquid membrane is used for flat roofs, which is exposed to weathering and has high ductility.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'constructionor_com-large-leaderboard-2','ezslot_11',112,'0','0'])};__ez_fad_position('div-gpt-ad-constructionor_com-large-leaderboard-2-0'); Polyurethane is very sensitive to a moisture content that should be used in evaluating moisture before application, otherwise, membrane peeling or de-bonding may occur after some time. WebSikaProof Bentonite can be applied to damp concrete, however, concrete must be at least 48 hours old and must be free from standing water. 3.5 x 21.5 (1.1 m x 6.6 m) or 75 SF (7 m2) standard rolls. During the crystallization process, crystals align in a three-dimensional array that breaks when subjected to excessive movement. Bentonite waterproofing has its own drawbacks. It will increase the lifetime of a solid construction. As a matter of fact, bentonite can absorb 7 to 10 times its own weight in water. 1. An experienced trainer and consultant, hes been recognized as NAHB Educator of the Year. Protect your home with our proven solutions & lifetime warranty. Although the oldest and most widely used positive side technology is sheet membrane waterproofing, its failures and limitations are also common and costly. 2. This is not to say you wont get good results if you apply it in the cracks of an already-existing home. Protect from flooding prior to pouring of concrete. Thermoplastic materials soften when heated and harden when cooled, so sheets can be attached with solvent-based adhesives or by heat-welding at the seams a significant advantage over field-fabricated seams. 58, Xinhua West Street, Tongzhou District, Beijing, India (Kryton Buildmat Co. In areas under constant hydrostatic head conditions, all joints and seams are to be detailed using CLAY-TITE MASTIC. As you can imagine, the injection approach is not inexpensive, but when you have little to no tolerance for moisture intrusion in a below-grade space, its good to know that the space can be waterproofed. It protects the property as well as the people present therein. Cementitious waterproofing applications: Water treatment plants Sewage treatment This website requires certain cookies to work and uses other cookies to help you have the best experience. Please see our Privacy Policy for details. While this may happen after just a few months or a few years, it will eventually happen. It is a primary ingredient in cat litter and in some pore-cleansing cosmetic products. For detailed instructions, refer to CLAY-TITE BLINDSIDE INSTALLATION GUIDELINE. Contact Pete here. Using a 6 (152.4 mm) cut strip of CLAY-TITE, form a collar around the penetration and hold in place with fasteners. On the average, 7 to 10 pounds of bentonite per square foot should do. As architectural protrusions do not pose any waterproofing challenge, any type of concrete structure vertical, horizontal or shaped can be securely waterproofed. All lap seams must overlap at least 1.5 (38 mm). Naturally, some waterproofers are nervous about using bentonite panels for the same reason as sheet membranes. In this article, well be telling you all you need to know about bentonite injection waterproofing, and why it is an ideal choice for protecting your basement against moisture. WebThere are three methods commonly used to seal a pond with bentonite pond sealer: the blanket method, the blanket mix method, and the sprinkle method. Your email address will not be published. To make concrete really waterproof which means both preventing water passage and resisting hydrostatic pressure you can waterproof from the positive (exterior) side, negative (interior) side or from within the concrete itself (integral systems). Visit our updated, This website requires certain cookies to work and uses other cookies to help you have the best experience. However, this second method is not very efficient. Bentonite is a cheap waterproofing solution. There are many methods that you can use to waterproof your basement. Kryton is a 37-year-old family owned business, based in Vancouver, BC, that manufactures concrete waterproofing and related products and distributes them to the construction industry worldwide. Basic Uses Designed for use on blindside walls or slab on grade Can be used on damp or green concrete Can be used in conjunction with TREMDrain Series Drainage Mats Civil. Mechanically attach all seams at 24 (609.6 mm) on center and apply PMPC TAPE from W. R. MEADOWS on joint. Disadvantages of Bentonite Bentonite waterproofing systems have the following disadvantages: Need for constant (high) hydrostatic pressure. Most contractors will use bentonite sheets instead of the liquid mud injection to waterproof your basement. Bentonite is a naturally occurring type of clay soil that has many uses. So the effectiveness of water repellents is highly dependent on the concrete itself. endstream endobj startxref They will stand up fine to a head of water, but will tolerate almost no joint or crack movement. It is usually rigid or semi-flexible waterproofings hence used at interior places such as toilets & areas not exposed to sunlight and weathering. Careful installation practices must also be followed. Sheets can debond if they are not promptly covered after installation, the top edges are not sealed, the primer is incorrectly applied or if tie holes are not flush with the concrete surface. For areas in which the ground water has a high sodium level (sea water or brackish water), contact W. R. MEADOWS technical services for recommendations. However, laying bentonite in sheets will mean you have to do some excavation around the foundation before the job can commence. For the last three decades, a new type of waterproofing has been used around the globe. Before agreeing to have your foundation treated with bentonite, its important to know about certain limitations and disadvantages. However, you cant waterproof your basement using bentonite only. For maximum protection to be guaranteed, you must expose the entire foundation wall so the bentonite can be applied all across without leaving any area untouched. Blog 75 0 obj <>/Filter/FlateDecode/ID[<8EA4F72C7023FA0C3F0E8FFC6F5C7022><2CB06B02E8AF9A4EAF9705E8ECE02E57>]/Index[61 27]/Info 60 0 R/Length 80/Prev 579906/Root 62 0 R/Size 88/Type/XRef/W[1 2 1]>>stream As a matter of fact, bentonite is a commonly used ingredient in skin care products. Bentonite is used to seal building foundations from wet soil. Substrate. WebDISADVANTAGES Back up wall has to be carefully prepared to provide adequate containment Not an Adhered System water that penetrates through the membrane may travel along the concrete wall with water pressure. Integral systems block water passage from any direction by working from the inside out, making the concrete itself the water barrier. Cementitious waterp. Keep CLAY-TITE dry; protect from exposure to the elements. A thin layer of bentonite will not stop water from getting into your basement, you will need a thick layer to achieve such results. Waterproofing is the application of impermeable layers on the surfaces of foundations, walls, roofs, and other parts of the building which may be concrete, leather, fabric that provide a surface impermeable barrier is to prevent water penetrations. Disadvantages Of Bentonite Waterproofing Bentonite clay is a great material to use for basement waterproofing, but it does come with its fair share of disadvantages. The basement is one of most vulnerable parts of a home, thanks to the fact that it tends to be surrounded by soil. Let us take a look at some of them below. Bentonite is an absorbent clay of volcanic origin. There are pressure limitations beyond which the clay loses its waterproofing capacity. Detailing W. R. MEADOWS offers CLAY-TITE MASTIC and CLAY-TITE ADHESIVE for seam laps. The second method of bentonite waterproofing aims at stopping excess bentonite from flowing into the soil. 3 Waterproofing Solutions for Pressure Treated Wood. This would increase the cost of completion, being that you have to buy a lot more of the material. For installation temperatures below 40 F (4 C), use CLAY-TITE MASTIC in place of CLAY-TITE ADHESIVE. Bentonite waterproofing cannot be used for all types of buildings. Terms of Use, USA Canada Franais Espaol International. It is environmental friendly: Bentonite clay does not have side effects to the environment. Note that high vapor permeability and free air flow are helpful when it comes to evaporating slow rate external water before enough of it accumulates to flow down the wall and onto the floor. They are typically not characterized as waterproofing materials or repellents because they have no ability to seal cracks and joints. Since the 1980s, many construction projects around the globe have used integral crystalline admixtures to waterproof concrete. The first of which being the use of large amounts of bentonite to get the job done. Whenever new water enters the concrete through changing water levels or new cracks, crystals continue to grow and seal the concrete. Materials are strongest on the first day following installation, after which they gradually deteriorate. I had requested W. R. MEADOWS in the project specificationsand they were able to meet our needs with CLAY-TITE., John Ritchie Place membrane bentonite side up on the mud slab or over compacted sub-grade. They also allow for a larger building footprint and reduce maintenance and repairs over the long term. ** Warranties vary by product and service. CLAY-TITE ADHESIVE is to be used when above the water table and temperatures are above 40 F (4 C). These membranes are composed of polyvinyl chloride (PVC), chlorinated polyurethane or chlorosulfonated polyethylene, with glass fibre-reinforced PVC being the most popular membrane type. We have recently started our new basement waterproofing company, Waterproofing Parsippany, and came across this article. Installation for slabs-onground are completed by simply laying the panels or sheets on the substrate and lapping the panel joints. They are challenging to use in vertical applications and difficult, if not impossible, for blind wall applications. The geotechnical report with a soil and water analysis should be approved by the Featured States: Alabama, Design, CMS, Hosting & Web Development :: ePublishing, Bentonite comes in premanufactured sheets, such as CCWs MiraClay, a specially constructed below-grade foundation waterproofing system. Clay in general displays an incredible propensity to absorb water, expanding in the process. 2023 The Taunton Press, Inc. All rights reserved. They also increase tensile strength, resistance to acidic soils, resilience, self-healing and bondability. Tremco Technical Service Bulletin No. The material was sprayed or troweled onto the substrate, which sometimes led to inconsistent application thickness. Get building science and energy efficiency advice, plus special offers, in your inbox. Requires to be wet to be effective. Apply CLAY-TITE MASTIC from W. R. MEADOWS over all fasteners. Do you have a building science puzzle? A primary reason for their longevity has been technological advances that have made them economical and easy to apply. Additionally, sheet membranes must be applied to a smooth finish without voids, honeycombs or protrusions. This can be problematic, since more need more labor and weather conditions cannot allow always to withstand several days before applying the second layer. APPLICATION It helps in reducing the humidity inside the house, thus prevents damage to our indoors from exposure to moisture or water.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[580,400],'constructionor_com-medrectangle-3','ezslot_6',108,'0','0'])};__ez_fad_position('div-gpt-ad-constructionor_com-medrectangle-3-0'); In terms of the foundation, waterproofings means that no liquid will penetrate in the concrete foundation wall even under submerged conditions, the several products applied to foundations are called damp proofing. The polypropylene fabric protects the bentonite from direct installation of shotcrete. I have a 1900 red brick Victorian that has a rubble foundation and typically had 2" of water in the basement. Bentonite waterproofing cannot be used for all types of buildings. How much bentonite you use for sealing your pond depends on the surface on your pond. Bentonite waterproofing involves the use of sodium bentonite, a naturally occurring clay mineral, to create a barrier against water intrusion in construction structures. CLAY-TITE bentonite clay waterproofing membrane by W. R. MEADOWS also has an additional layer consisting of virgin, 20-mil HDPE which provides further waterproofing security. End of roll overlaps should be a minimum of 300mm and staggered a minimum of 300mm away from each other. WebOur company provides insulation, waterproofing and fireproofing services for commercial construction projects throughout the southeastern and south-central United States. The liquids them-selves also contain toxic and hazardous VOCs. They can disband or blister if a negative vapor drive is present because they do not breathe. hbbd``b` $A`,[G $w nHy Contact. As with many aspects of life, there are advantages and disadvantages to both options. The more it expands, the denser it becomes. They are often inaccessible for repairs after installation. As a result, it can swell up to 15 times its dry volume. Installation is typically completed in 8-foot to 10-foot lifts with backfill after every course. The increased use of bentonite as a waterproofing system stems from the versatility of the material and the fact that it can be used in difficult conditions. A life-long veteran of the construction and renovation industries, Yuers has spent most of his career in concrete waterproofing. Bentonite waterproofing systems have been on the United States market for nearly 80 years. Let us take a look at some of them below. Sodium bentonite can absorb water until it has expanded to as much as 15 times its original size when dry. All honeycombs, indentations or rock pockets should be repaired with trowelable bentonite prior to panel or sheet application. Polyurethane protective coating delays the natural breathing capability of concrete. Yuers has written several articles on the subjects of concrete waterproofing, Krystol technology and concrete coatings and repair systems. The polyurethane protective coating shouldnt be very versatile. This creates problems stemming from soil's tendency to absorb and retain moisture moisture which will begin penetrate through any cracks or gaps in your foundation walls. Learn about four signs you may not realize indicate your home has a problem with water damage. Cementitious waterproofing is used in the following type of structures: Water Treatment Exposed membranes contain granular mineral aggregates to withstand the weathering and other parts requires the contractor to apply protective screws to prevent perforation of the membrane. This illustration is one in a series depicting the steps to the Hammer & Hand approach to interior basement waterproofing. This blog provides authentic information regarding civil structures, equipment, materials, tests & much more. WebSodium bentonite is a natural pond sealant that seals leaks in any pond regardless of its state, whether the pond is old, new, dry, or has water and fish. Bentonite is mixed with water to form a slurry that can be applied to the surface of a structure to create a waterproof barrier. In injection grouting waterproofing, a low viscous injection resin for waterproofings application in small to medium infiltration used in bricks, concrete, and other structures like the basement, tunnels, etc. As you can see, bentonite is quite cheap. This method is the coating of a flexible asphalt layer with two methods: one is the torch seal and the other is a self-adhesive waterproofing membrane. On average, a sheet of one square foot of bentonite costs only $5. It supplies a healthy environment, good waterproofing system helps in making a clear living workspace. This is one of the factors that cause homeowners to opt for other waterproofing options. The admixture is a blend of cementitious and proprietary chemicals that actually work with the available water in concrete to form insoluble crystals. Self-adhesive compounds include asphalt, polymers, and filler, while some resins and oils are added to improve the adhesion characteristics.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'constructionor_com-banner-1','ezslot_9',111,'0','0'])};__ez_fad_position('div-gpt-ad-constructionor_com-banner-1-0'); The self-adhesive has a shorter shelf life because of the bonding properties of membrane life over time, while the flashlight on the membrane is exposed and covered. Bentonite is also used by some contractors as a waterproof coating on basement foundations. ): 136-137 Centrum Plaza, Golf Course Road, Sector 53, Gurgaon Haryana 122002, INTEGRAL WATERPROOFING & DURABILITY SOLUTIONS. Pvt. CLAY-TITE BLINDSIDE INSTALLATION GUIDELINE, CLAY-TITE BACKFILLED WALL INSTALLATION GUIDELINES, CLAY-TITE UNDERSLAB INSTALLATION GUIDELINES. Lap all seams a minimum of 4 (101.6 mm). It is a 60 mil-membrane composed of a, PRECON is a composite sheet membrane comprised of a non-woven fabric, elastomeric membrane, and W. R. MEADOWS exclusive, patented PLASMATIC, MEL-ROL LM is a single-component, polymer-modified, cold-applied, water-based, liquid waterproofing membrane ideal for below-grade vertical seamless waterproofing applications. Expensive and extensive. Unlike traditional membrane waterproofing, which tends to be labour-intensive and expensive, crystalline technology decreases installation and maintenance costs and is easy to handle admixtures can be shipped in dissolvable, pulpable bags that are thrown into the concrete batch during mixing. Hydration must occur immediately after installation and backfilling. Ideally, bentonite should remain under a constant pressure of maximum 60 pounds per square foot. Additionally, crystalline admixtures offer installation advantages. Continue with Recommended Cookies. This reduces the maintenance coast of the building. The coatings bridge cracks up to .4mm and the putty fills larger holes. Application Video. When the bentonite is hydrated, it swells to create an impermeable barrier to water and chemicals. And they require the use of solvent-based primers and adhesivesanother drawback. Concrete waterproofed with crystalline admixtures affords other benefits, too. This ensures that the greatest possible amount of space is sealed in the process. It must also take place in an adequately confined area to avoid lifting or cracking the concrete slab. We use cookies to improve the functionality and performance of this site. One of the major reasons why your basement is vulnerable is the fact that it is surrounded by soil. Trowel and sprayed bentonite applications are rarely completed anymore. Thermoplastic membranes also effectively resist chemicals and hydrostatic pressure. Heres a summary that can help make the choice more clear.

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