In the world of NHL’s 3 different strengths are common: NHL 2.0- use for interior plasters/exterior stuccoes, old soft bricks and softer stone IE: sandstone etc. Hydraulic lime (HL) is a general term for varieties of lime (calcium oxide), which set through hydration.This contrasts with varieties of air lime slaked lime (calcium hydroxide), used to make lime mortar, the other common types of lime mortar, which set through carbonation (re-absorbing carbon dioxide (CO 2) from the air).. Optional add on: IMER MIX 360 iDust Grate $730.00, Optional Add On: Mix All 60 5 Pack of Buckets $200.00, Optional Add On: Mix All 60 Fine Mortar Mixing Paddle $89.00. NHL mortar is produced using limestone that contains naturally occurring impurities (pozzollans) such as clay and … Hydraulic Lime (NHL) NATURAL HYDRAULIC LIME (NHL) is produced by burning and slaking limestone which is quarried with a proportion of silica and trace elements. They also carry a CE Mark. In the United States NHL may be called hydrated hydraulic lime (HHL) per ASTM C-141 Standard Specification for Hydrated Hydraulic Lime for Structural Purposes. Remember the mortar must be softer than the brick or stone it is matched with! Certificate of Conformity with European Norm EN-459, Plaster or Stucco on Masonry – Block, Brick, Stone, Plaster or Stucco on Adobe, Cob, Earth Plaster. However, the following mixing procedure can reduce this problem We recommend this product for historic structures built with harder brick or stone. Lime Green hydraulic lime mortars are available pre-packed in 25kg paper sacks for smaller jobs or can be delivered in 1000kg bulk bags as required. BioLime® Natural Hydraulic Lime - NHL 3.5 BioLime® Natural Hydraulic Lime (NHL) 3.5 is designed for use in mortars and plasters for historical building restoration, quality building/construction and green building. Natural hydraulic lime or NHL, comes from limestone that has natural impurities of clay and other minerals. These ranges along with our mature lime putty plasters and mortars mean we can provide a lime to suit your project's needs. They also make ideal mortars and plasters for historic preservation and green building. For natural hydraulic lime (NHL) mortars, the lime is obtained from limestone naturally containing a sufficient percentage of silica and/or alumina. Saint Astier® Natural Hydraulic Lime Building With Hemp & Hempcrete Hemp Construction, or Hempcrete, is much like concrete and is used mostly to form insulating walls. There are three European classifications: NHL 2, NHL 3.5 and NHL 5 based on the compressive strength of laboratory mortars after 28 days. a timesaving, lightweight, portable, powerful little mixer for the DIYer or contractor to get that job done. Lime Putty, Hydrated Lime, Natural Hydraulic Lime, Natural Cement, Roman Cement and Portland Cement/Lime. A hydraulic lime is made from a limestone that either naturally contains or has artificially introduced some form of amorphous silica in the burning process. Heritage Natural Hydraulic Lime Mortar – NHL 3.5 contains no cements, polymers, or admixes of any kind. Sand Selection. Our lime mortars are quality tested for ease of use & lasting results. It is less flexible and less vapour permeable (breathable) than a lime putty mortar. Natural Mortar. Installation Instructions For Lime Mortar, Helpful Guidelines When Working with Lime Products. It is pure white but is tintable. Natural Hydraulic Lime (NHL) Saint Astier® pure and natural hydraulic limes (NHL) have been in production for over 150 years. If playback doesn't begin shortly, try restarting your device. This product is currently available in 55lbs (25kg) bags. Pure and natural hydraulic lime, moderately hydraulic, recommended when moderate strengths and better freeze-thaw resistance are required. NHL 5.0 is the hardest of the NHL’s, we recommend caution where it is used. The ratio of sand to binder varies depending on what job you are doing. The less hydraulic a lime is, the more it will flex and move with a building. TransMineral USA, Inc. is proud to be a member of the following organizations and associations: Why Use Saint Astier® Pure and Natural Hydraulic Lime? If you are working on a larger project, or a commercial development then we can mix mortars to your specific requirements and arrange silo storage for extra on-site convenience. Our Natural Hydraulic Lime 3.5 is typically used with old harder bricks and stone. Application Rate of Lime Mortars. Natural Hydraulic Lime (NHL) 3.5, by Roundtower , is a strong mortar option with all the flexibility that comes with natural lime. Hydraulic in “Natural Hydraulic Lime (NHL)” means that it sets up underwater instead of carbonating like non-hydraulic lime putty mortars. HYDRAULIC LIME MORTAR What are the benefits? Remember the color of the sand will largely determine the color of the mortar! Our Lime Mortar & other binders are made from Saint-Astier Natural Hydraulic Lime. Natural hydraulic lime is used to make breathable durable lime mortars, lime plasters and lime renders for historic buildings and new buildings. We recommend using this grade of NHL for a softer mortar project, including soft brickwork, sandstone, and more. Pure and natural hydraulic lime, feebly hydraulic, used when elasticity, low strength or high vapor exchange are desirable. Roundtower Limecrete Flooring System Roundtower's Limecrete Floor System was initially designed to be used in the renovation of Cor Castle over 20 years ago. The characteristics of the raw materials are unique and consist of an undisturbed layer of calcareous rock infiltrated mainly by silica with only traces of other minerals. Natural lime has higher permeability in general, and allows for moisture to enter and escape freely – unlike Portland mortar, which locks in moisture and cracks over time. Natural Hydraulic Limes are commonly used as a replacement mortar in structures originally built of hot and non-hydraulic lime mortars due to their resilience to harsh conditions and normal weathering. Natural hydraulic lime NHL 2 is the weakest strength natural hydraulic lime, suitable for most lime mortars, lime plasters and lime renders. Mix with sharp sand at a ratio of 2 1/2 parts of Mason’s sand to 1 part NHL. Protect fresh mortar from frost, rain, direct sun and strong wind for a minimum of 48 hours depending on the time of year. Natural hydraulic and non-hydraulic lime mortars suitable for conservation and new build work. How much movement will the mortar have to cope with? is a mid size powerful mixer that can handle all your mixing needs! Read the installation guide below and feel free to contact us with questions or a custom quote for colors. Natural Hydraulic Lime mortar consists of two building materials, lime and sand. Contact us to get more information on our Natural Hydraulic Lime 3.5. Lafarge has a long and strong track record of producing Natural Hydraulic Lime stretching back to the mid 1800s. Natural hydraulic lime is a traditional building material that was widely used in Europe prior to the development of portland cement. TransMineral, USA was established in 1997 by Michel Couvreux, an architect in France and the U.S. His familiarity with traditional “old world” building techniques and materials have been instrumental in their revitalization in the U.S. along with his stewardship of implanting Saint Astier® Natural Hydraulic Lime in the North American building sector. We routinely prepare custom, authentic historic mortars for a wide variety of applications of all sizes as well as offering pure, natural historic binders for on-site matching by skilled tradespeople. The more exposed to the elements a lime mortar or lime render is, the greater the need for a faster set and greater durability, to cope with harsher freeze thaw cycles. Heritage Hydraulic Lime Mortar NHL 3.5. Both are sold as dry bagged products. Moderately hydraulic lime (NHL 3.5) is recommended for most historic structure elements that are exposed to extreme freeze-thaw activity and/or high moisture levels. Saint Astier® Natural Hydraulic Lime's hemp construction product is called Batichanvre. Natural hydraulic lime, is an odourless powder, when mixed with sand and water it becomes a binder for building applications (e.g. Lancaster Lime Works White Limewash is a perfect blend of high calcium lime that’s easy to use. Natural hydraulic lime (NHL) is produced by heating (calcining) limestone that naturally contains clay and other impurities: no materials may be added to create the hydraulicity. NHL’s will set in the presence of water which makes it ideal for use in exterior applications. Apply over lime stucco, plaster, stone and brick. BioLime® Natural Hydraulic Lime (NHL) 2.0, 3.5 and BioLime® Natural Hydraulic Lime NHL 5.0 are designed for use in mortars and plasters for historical building restoration, quality building/construction and green building. Lime mortars mixed in drum mixers are prone to balling. Artificial hydraulic lime is produced by introducing specific types and quantities of additives to the source of lime during the burning process, or adding a pozzolan to non-hydraulic lime. Pure and natural hydraulic lime, eminently hydraulic, specified when strength and high freeze-thaw resistance are necessary. Remember the mortar must be softer than the brick or stone it is matched with! A dry powder which requires mixing with water on site. This product is not recommend for soft brick or for plaster or stucco. 100% Natural with Lime and a Blend of Aggregates, Consistent Quality. It can be used for mortar/pointing/rendering of most masonry types. Avoid rapid drying due to high temperatures or strong winds using appropriate curing methods. Natural Hydraulic Lime (NHL) 3.5, by Roundtower , is a strong mortar option with all the flexibility that comes with natural lime. Natural hydraulic lime can be used when speed is essential as it sets much quicker than a lime putty mortar. Suitable for … There are many other benefits for using it too. Millions of tons have been used successfully on a global scale, in the most diverse climatic conditions. The products have CE Certifications and are in … Reasons for choosing to repoint grade two listed buildings using lime putty instead of natural hydraulic lime The renewed scientific interest and analysis and the life cycle of our historic buildings are proof of the exceptional qualities of lime mortars. Millions of tons have been used successfully on a global scale, in the most diverse climatic conditions. NHL-3.5 is suitable for most exterior applications, while NHL-5 is designed for the toughest outdoor applications, such as floor slabs, underground work, and chimneys. Click here to view Telling Natural Hydraulic Lime Brochure. Prefer to watch rather than read? We offer this item currently in 55lbs (25kg) bags. Working temperatures should not be below 41 degrees F. Dampen the wall before application. This amorphous or “free” silica fuses with some of the quicklime to form a clinker, a cementitious compound. Lime gives the building the ability to flex and move wihtout the need for movement joints in many cases. This stronger mortar still has all the properties of natural lime products. mortars and renders). Tarmac / Blue Circle Limelite products contain no additives, mineral additions or Portland cement and are quality assured to EN 459-1: Natural Hydraulic Limes with independent third-party certification. Guide to mixing natural hydraulic lime mortar Mixing Guide. Hydraulic lime is available in two forms: Natural Hydraulic Lime (NHL) and Pozzollanic Hydraulic Lime (PHL). The characteristics of the raw materials are unique and consist of an undisturbed layer of calcareous rock infiltrated mainly by silica with only traces of other minerals. This article seeks to explain the “mystery” of the differing lime products and makes a comparison of lime and cement based binders. Lime Green Natural Mortar is a pigmented preblended (NHL) natural hydraulic lime mortar available in a large range of colours. © 2020 lancasterlimeworks.com | All rights reserved. Natural Hydraulic Lime (NHL) products Saint Astier Natural Hydraulic Lime and derivative products have been produced by the same families since 1851. It is the silica and trace elements that when burnt, become reactive with water and will cause an initial hydraulic set of the mortar … NHL mortar is a strong yet more permeable and flexible mortar than modern portland cement mortars, providing outstanding protection of masonry units … is used extensively for limecrete flooring and is appropriate in areas of extreme exposure. Saint Astier® pure and natural hydraulic limes (NHL) have been in production for over 150 years. NHL 2 Lime Mortar Internal Work or Soft Masonry Flexible … We recommend this product for historic structures built with harder brick or stone. Application rate of lime mortars. 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