The strength of 3 samples were tested at 7 and 28 days using compression testing machine. Therefore, it is widely used for sound insulation and acoustic treatment of rooms as wall and. The disadvantage of the cementbonded particleboards is the relatively high price which is mainly derived from the. Pdf resistance of wood wool cement board to the attack. Offering high quality wood wool insulation board, wood wool packaging material, wood wool cement board, wood wool acoustic panel and wood wool boards. Diacreter wood wool cement board is an ecofriendly material which have the characters of fireproof, thermal insulation, sound absorption and long lifespan since. Troldtekt has produced cement bonded wood wool products since 1935, and today we are one of europes leading suppliers of acoustic solutions.
Box 5, 5600 mb eindhoven, the netherlands abstract in this study, an ecofriendly woodwool cement board wwcb is designed by applying an optimized. Wood wool insulation boards are made of northern european spruce wood. From taiwan, more than 50year experience manufacturer of wood wool cement panel of widerange applications for acoustic, insulation and decoration. Wood wool cement board wwcb is a versatile building material made from wood wool and cement where each fiber is coated with a thin film of ordinary portland cement opc that, when cured, partly petrifies the wood. Tymawr wood wool boards have been used in buildings for decades and are very popular as a lime carrier. Wood wool slabs or cement board this information is only available to paying isurv subscribers.
Wood wool africa western cape,manufacturers of wood wool. Ecodesign all in one diacrete wood wool cement board. Woodwool cement board using mixture of eucalypt and poplar. Resistance of wood wool cement board to the attack of philippine termites article pdf available in insects 31. A wide variety of wood wool cement board options are available to you, there are 527 suppliers who sells wood wool cement board on, mainly located in asia. In the beginning, wood wool cement board wwcb or woodcement composites boards, particularly low density boards are mainly used for insulating purposes. Application of alternative fillers in the cementbonded. Shahsahib woodwool enterprises was founded more than four decades ago in 1974 to cater to packagingevaporative cooler industry. It is usually produced in densities from 450 to 900 kgcu. The betonwood panel has a great density 50 kgm3, it is a multipleuse material for green building. Savolit plus wood wool boards building panels skanda. The raw timber in savolit plus wood wool board originates from sustainably managed forests and is pefc labelled. Wood cement board wood wool cement fiber panels panels.
Wood wool cement board wwcb is a panel product consisting of long thin strands of wood that are bonded together with an inorganic binder such as portland cement. Previously magnesite was used to bind the wood wool but our latest generation uses cement. Wood wool cement slabs, which are available in a variety of different forms, have proved to be effective for many acoustic applications. Before proceed to the process of mixing wcb at figure 1. Wood cement composites are generally placed into two categories.
Cement bonded particle board betonwood n in portland cement anche wood. It has evolved from the original singlelayer board with multilayer core of expanded polystyrene, mineral or rock wool and other materials with modern insulating properties, all versions were kept. The lohas wood wool cement board is a functional, natural material made from two of the worlds oldest building materials, wood and cement. Savolit plus is the result of continuous research and the desire to provide the best environmentally friendly products and solutions. Wood wool cement board production plant hereunder follows a flow chart, figure 2, and some pictures with descriptions of such a fully automatic. Some recent examples are described and compared with the expected behaviour based on laboratory measurements of absorption coefficients or sound reduction indices. Pdf woodwool cement board using mixture of eucalypt and. Samples with 3%, 5% and 8% replacement of cement with wood ash were casted. Mineral bound wood wool boards are used in a wide range of applications, e. China wood wool cement board manufacturers select 2020 high quality wood wool cement board products in best price from certified chinese decoration material manufacturers, wall panel suppliers, wholesalers and factory on. Box 5, 5600 mb eindhoven, the netherlands abstract in this study, an ecofriendly wood wool cement board wwcb is designed by applying an optimized. Panel dimensions are mainly 610 mm wide 2ft and 2440 mm 8ft long and thickness ranging from 8 to 50 mm.
Similarly, unlike the wood wool cement boards where adequate studies have been reported on wood raw mate rials screening, suitability tests and consequent followup board manufacture from different wood raw material types sandermann et al. Historical brand names include ceban, erulit, fibrolith, frankotekt. Wood wool cement board wood wool cement board supplier. Media in category wood wool cement boards the following 9 files are in this category, out of 9 total.
Material the betonwood n cement bonded particle boards combines the advangates features of the cement with the wood properties. Pdf cement bonded wood wool boards from podocarpus spp. Wood wool, known primarily as excelsior in north america, is a product made of wood slivers cut from logs. Box 5, 5600 mb eindhoven, the netherlands abstract ordinary portland cement is currently widely applied in woodwool cement boards as binder.
Brouwers department of the built environment, eindhoven university of technology, p. Cementbonded particleboards merge the good properties of wood and cement. China wood wool cement board, wood wool cement board. Novolit wood wool boards the original plasterers forum. Wood cement board wood cement board is a decorative panel composed of long and strong wood fiber and cement, which is stabilized by chemical impregnation. The wood wool cement board australian national university. Cement bonded wood wool boards from podocarpus spp. These strands of wood, bound together with a small proportion of portland cement, provide an excellent background for lime plasters, eliminating thermal bridges in pillars, beams, interstorey facings, radiator niches. It is manufactured by 25 companies worldwide, which is 28% of all of the cement board companies. The thin wood fibres are mixed with a natural binding agent and other additives such as a waterrepellant substance. For some applications, woodcement boards are competitive with reinforced concrete because of their relatively low density 11.
Wood wool cement board fiber cement wall panel wood wool insulation board. Savolit plus wood wool boards are genuine natural panels and consist of long, strong wood fibres which are. Bundesarchiv bild 183202750005, lpg friedensweiler, bau eines stalls. The boards contained a series of mixtures of eucalypt and poplar woodwool, 8020, 5050, 2080 and 0100 and cacl 2 5 and 8%, ww cement were fabricated. A wide variety of wood wool acoustic panel options are available to you, there are 2,416 suppliers who sells wood wool acoustic panel on, mainly located in asia. The wet wood wool with 5065% moisture content, together with cement powder, is fed into a continuous mixer. Cewood acoustic panels are a durable and nature friendly material made of top quality wood wool and cement.
Savolit plus wood wool building boards 25mm 2400x600mm. Wwcb is made of woodwool and portland cement with addition of natural mineralizing agent. Cementbonded wood composites as an engineering material. Thank you for visiting wood wool africa our company is situated in the western cape and has been manufacturing wood wool for the last 15 years. Wood wool cement board is a versatile, ecologically pure and safe construction material, meeting all criteria of comfortable and safe housing. Wood wool is an environmentally friendly, easily decomposable material manufactured from wood. To guarantee constant quality, celenit has developed one of the most innovative production plants in europe the panels produced conform to european uni en168 and are ce marked. These wood cement fiber panels have high heat resistance and high noise reduction performance. Wood wool slabs are manufactured using wood from loose wood wool, bonded with portland cement and compressed to a final thickness to form rigid sheet material in slabs around 5075mm thickness. Hence woodwood slabs are currently little used in the uk for permanent formwork. European producers alone produce in excess of 20mm 2 yr of wwcb. It is mainly used in packaging, for cooling pads in home evaporative cooling systems known as swamp coolers, for erosion control mats, and as a raw material for the production of other products such as bonded wood wool boards.
Mineral bonded wood wool boards ww boards are building boards made of wood wool fibres, water and the binding agents cement, caustic magnesia and gypsum. Although the cement component is a cause of embodied energy the total amount. Mineralbonded wood or other lignocellulosic composites are moulded or compressed blocks and panels containing approximately 3070 % by weight of wood in various forms and 7030 % of mineral binder 2. Wood wool boards,wood wool acoustic boards,wood wool. We are also proud of the fact that our products are. With the passage of time the group has emerged as a. Woodwool boards come in 600 x 1200mm sheets and are available in 15mm or 25mm thicknesses. Wood cement boards, also known as wood wool cement boards wwcbs. Wood wool cement board fiber cement wall panel wood wool. Big chance of a decent depth coat sliding on them unless it was sticky material.
Responsibility has always been a fundamental value for. Many product variations exist which use cement, lime or gypsum to bind wood shavings, wood chip or other wood fibres to form a composite board. Celenit wood wool boards celenit is one of europes leading manufacturers and suppliers of environmentally excellent insulation made from mineralised fir woodwool boards. The main component is shredded wood, or wood wool which gives the product its distinctive appearance. The compressive strength values were compared with that of conventional concrete mix of m25. Wood fibre cement board designer concrete from selected by materials council all information highresolution images cads catalogues.
They have special features which are striking and remarkable and make them exclusive. Wood wool cement board is an acoustic decoration material produced by wood wool cement board manufacturers. The woodwools for each board were first sprayed evenly with the dilute aqueous solution of cacl 2, and then cement was sprinkled through the wet wood excelsior. The cubes were casted as per the procedure specified in is 516. Wood fibre offers excellent insulation, heat retention and sound absorption. A board of wood wool, joined with cement binder, has a very long tradition and is also today regarded as very good and reliable insulation material. Savolit plus wood wool board is a genuine natural panel and consists of long, strong wood fibres which are bonded into panels and used as a natural alternative to plasterboard. Wood wool cement board wwcb wood wool cement board wwcb was initially developed in 1920 by josef oberleitner in austria. Suitable fixings are available according to stud type. In that way the fiber will last indefinitely as long as the cement film is not damaged. There are various types of cementwood wool board combinations with heraklith which uses a magnesite cement being one of the better known makes in the uk.
The different will be take a look during mixing stage. The top countries of suppliers are india, china, from which the percentage of wood wool acoustic panel supply is 1%, 99% respectively. Ionic woodwool is a building board suitable for carrying lime or clay renders and plasters. Cewood panels are made of wood wool, using grey or white cement as the binder. Were relaunching our lohas board an environmentally. Troldtekt acoustic panels are still manufactured from the same sustainable materials as 80 years ago. Afterwards, one compresses the wood pulp into a wood wool board, which dehydrates in an oven. The finishes color can be adjusted according to the requirements of your projects. Our range of woodwool products covers just about every requirement from acoustic and thermal insulation, ceilings and walls and internal and external use. Wood wool board has fairly good results for low, medium and high frequency noises.
114 1359 1498 708 58 1383 555 270 1116 1008 50 63 1306 554 323 306 1187 1263 414 489 1066 922 118 565 893 973 1387 712 847 1436 292 1144 1430 101 562 743 1224 573 865 1490 359 963 389 55 455 435 426 222