Delamination in Wood, Wood Products and Wood-Based Composites

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Historical Version s - view previous versions of standard. More D This specification covers adhesives suitable for the bonding of wood, including treated wood, into structural laminated wood products for general construction, for marine use, or for other uses where a high-strength, waterproof adhesive bond is required.

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The requirements of the adhesive are based on the performance of the adhesive in laminated wood as measured by the following test methods: resistance to shear by compression loading; resistance to delamination during accelerated exposure to wetting and drying; and resistance to deformation under static load. The wood shall be prepared by ambient curing and hot press curing. This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application.

ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.


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Methods are included to evaluate adhesives intended for use in exterior exposure. The results are shown in Table 5.


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  4. Table 5: Thermal Conductivity. The volume of the space below the ceiling reception room was The impact noise level was measured two times at 3 positions of the standard tapping ma-chine parallel to each test specimen at the unfinished ceiling and one position of the standard tapping machine at each specimen. For the measurement a mobile microphone was used in the reception room below. Table 7. Impact sound insulation. There were carried out at least 15 measurements of the walking noise, which was emitted while a person walked consistently on the installed floor.

    The proband wore high-heeled shoes hard rubber sole for the test. For the characterization of the room acoustical properties the 1 st step of the test person on the floor is consulted. As measures for the emitted noise the A-weighted total sound pressure level frequencies from 25 Hz to Hz in dB A and the psycho acoustical loudness as Sone were used. The differences of the total sound pressure levels are assessed as follows:. Percentage changing:. This value gives the increasing negative value or decreasing positive value of the loudness perception in percent.

    Ref document number : Country of ref document : EP. Kind code of ref document : A1. Ref country code : DE. A composite board comprising a first layer having an orientation and a second layer bonded to the first layer where the second layer comprises a plurality of wooden veneer structures, each wooden veneer structure is substantially perpendicular to the orientation of the first layer.

    Types of Lumber-base Engineered Wood Floor: [] 2-two layer lumber-base engineered wood floor is manufactured from noble wood top layer in long grain direction, and core layer of lumber slats assembled with grain direction across the top layer's grain. The present invention relates to: [] a.


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    Test results [] As shown below, test results demonstrate that a sample representing an embodiment of the invention Core 1 may have some improved properties over existing engineered wood floor boards Core 2, 2P, 3P, 5P. Table 1: Static locking strength long side joints.

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    A composite board comprising: a first layer having an orientation; and a second layer bonded to the first layer, the second layer comprising a plurality of wooden veneer structures, wherein each wooden veneer structure is substantially perpendicular to the orientation of the first layer.

    The composite board of Claim 1, further comprising a third layer, wherein the second layer is in between the first and third layers. The composite board of Claim 1, further comprising a fourth layer in between the first and second layers. The composite board of Claim 1, further comprising a plurality of third layers, wherein the second layer is in between the first layer and the plurality of third layers. The composite board of Claim 1, wherein each of the wooden veneer structures comprises: a first and second wooden layers; and a glue layer between the first and second wooden layers, the glue layer substantially perpendicular to the orientation of the first layer.

    The composite board of Claim 1, wherein the first layer has a second orientation perpendicular to the first orientation; wherein each of the wooden veneer structures has a grain direction; and wherein the grain direction of each of the wooden veneer structures is substantially parallel to the second orientation of the first layer.

    The composite board of Claim 1, wherein the wooden veneer structures are bonded together. The composite board of Claim 1, wherein each of the wooden veneer structures is made of wood that is years old. A method of making a composite board, comprising: providing a first layer having an orientation; assembling a second layer by arranging a plurality of wooden veneer structures so that each wooden veneer structure is substantially perpendicular to the orientation of the first layer; and bonding the first layer to a first surface of the second layer.

    The method of Claim 10, wherein bonding the first layer to the first surface of the second layer further comprises bonding the wooden veneer structures together. The method of Claim 10, further comprising: forming a composite veneer panel by bonding a plurality of veneer layers together; and cutting the plurality of wooden veneer structures from the composite veneer panel.

    The method of Claim 10, wherein the second layer has a second surface opposing the first surface; and further comprising bonding a third layer to the second surface of the second layer. The method of Claim 10, wherein the second layer has a second surface opposing the first surface; and further comprising: bonding a plurality of third layers together; and bonding the plurality of third layers to the second surface of the second layer.

    The method of Claim 10, further comprising bonding a fourth layer in between the first and second layers. The method of Claim 10, wherein each of the wooden veneer structures has at least one glue layer substantially perpendicular to the orientation of the first layer. USP true Engineered wood building material with veneer composite core and vertical glue-line position.

    Hybrid wood - Wikipedia

    USB2 en. EPA4 en. CNA en. MYA en. WOA1 en. Multilayer wood panel and method for cutting and assembling wood avives in the green condition for manufacturing such a panel. Composite engineered floor board having an oriented strand board osb stabilizing base. Environmentally friendly deformation-resistant solid wood geothermal floor saving energy and manufacturing method thereof. Anti-seepage water species delamination vertical plywood production technology and equipment.

    Method of making a resin impregnated composite wood product from waste, scrap, and used wood.

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    Multilayer wood panel and method for cutting and assembling squared green wood for producing such a panel. EPA1 en. USA1 en. Porteous et al. USA en. CAC en. KRB1 en. Wood flooring with laminated wood and plastic layers using symmetric structure and method of manufacturing the same. Ultra thick bamboo-wood composite panel, ultra thick solid wood composite panel and manufacturing methods thereof. Wood flooring with laminated wood and hdf using symmetric structure and process for manufacturing the same.

    CNB en. Plywood laminate having improved dimensional stability and resistance to warping and delamination.

    EPB1 en. USB1 en. CAA1 en. GBA en. Door or board having a solid core and edges of laminated pressed wood fibre sheet material. Stark et al. Wood-based composite materials: Panel products, glued-laminated timber, structural composite lumber, and wood-nonwood composite materials. Carbonization wood finger-joint glued-laminated timber and its manufacturing method.

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    Hybrid wood

    Method for making plywood and dimensional lumber from Arundo donax L. JPB2 en. Symmetrical wood flooring using heat-treated wood and method for manufacturing the same. Ep: the epo has been informed by wipo that ep was designated in this application. Request for preliminary examination filed after expiration of 19th month from priority date pct application filed from Ref document number : Country of ref document : EP.

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