LY/T 3193-2020Terminology of bamboo-based materials for engineering (English PDF)

3.1 Unit term

3.1.1

Bamboo

The collective term for the different morphological units produced by the decomposition of bamboo stalks.

[GB/T 36394-2018, definition 2.1] 3.1.2 Bamboo culm the above-ground stems of bamboo plants.

[GB/T 36394-2018, definition 2.1.1] 3.1.3 Bamboo culm section the bamboo stalk has a certain length of unit after being crossed.

[GB/T 36394-2018, definition 2.1.7] 3.1.3.1 Half-split bamboo culm the bamboo tube is longitudinally divided into semicircular units.

3.1.3.2

Arc bamboo culm

The bamboo tube is longitudinally divided into arc-shaped units with a certain arc in section, usually 3 or 4 equal pieces of bamboo.

3.1.4

Bamboo split

The bamboo tube is divided longitudinally and has a narrow and long sheet with bamboo green and bamboo yellow.

[GB/T 36394-2018, definition 2.1.8] 3.1.5 Bamboo strip the bamboo slices are machined to form a strip-shaped bamboo slice with certain specifications and dimensions and a substantially rectangular cross section.

[GB/T 36394-2018, definition 2.1.9] 3.1.5.1 Rough planed bamboo strip After planing, bamboo green and yellow bamboo are basically removed, and bamboo strips with a certain size are removed.

[GB/T 36394-2018, definition 2.1.9.1] 3.1.5.2 Fine planed bamboo strip the rough planed bamboo strips are dried and precisely planed to reach the specified size and quality requirements.

[GB/T 36394-2018, definition 2.1.9.2] 3.1.5.3 Natural-coloured bamboo strip Bamboo strips with natural bamboo color.

[GB/T 36394-2018, definition 2.1.9.3] 3.1.5.4 Bleached bamboo strip Bamboo strips lightened by bleaching treatment.

[GB/T 36394-2018, definition 2.1.9.4] 3.1.5.5 Caramelised bamboo strip Bamboo strips with darkened color after heat treatment.

[GB/T 36394-2018, definition 2.1.9.5] 3.1.5.6 Finger-jointed bamboo strip A bamboo strip with certain specifications and dimensions formed by finger-joining along the length.

[GB/T 36394-2018, definition 2.1.9.6] 3.1.5.7 Flattened bamboo the bamboo tube is softened, expanded, and shaped into a sheet material.

[GB/T 36394-2018, definition 2.1.12] 3.1.6 Bamboo sliver A thin unit made by longitudinally splitting bamboo.

[GB/T 36394-2018, definition 2.1.10] 3.1.6.1 Radial bamboo sliver Bamboo strips formed by radially splitting bamboo slices.

3.1.6.2

Tangential bamboo sliver the bamboo strips are divided into the meridian direction.

3.1.7

Bamboo curtain

A curtain made of bamboos arranged in parallel and woven.

3.1.7.1

Bamboo sliver curtain A bamboo curtain woven from bamboo strips.

3.1.7.2

Bamboo bundle curtain A bamboo curtain woven from bamboo bundles.

3.1.7.3

Bamboo stick curtain A bamboo curtain woven from bamboo silk.

3.1.8

Bamboo mat

A mat made of interlaced bamboo strips.

[GB/T 36394-2018, definition 2.1.13] 3.1.9 Bamboo bundle the bamboo material is cross-linked and basically maintains the loose bundle unit of the original ordering mode of the fiber obtained by processing such as roll-compression decomposing.

3.1.9.1

Strip-type bamboo bundle the slender bamboo bundles are made from bamboo chips, bamboo strips and bamboo strips, the width of which is generally less than 10cm.

3.1.9.2

Sheet-type bamboo bundle Fiberized bamboo veneer Semicircular bamboo tubes and arc-shaped bamboo tubes make bamboo bundles with a certain width, the width of which is generally more than 10cm.

3.1.9.3

Natural bamboo bundle Bamboo bunches with natural bamboo color.

3.1.9.4

Caramelised bamboo bundle Bamboo bunches that have been heat-treated to darken the color 3.1.10 Bamboo stick A single bamboo chip or bamboo strip is processed into a slender unit with a similar width and thickness.

[GB/T 36394-2018, definition 2.1.16] 3.1.11 Bamboo particle Bamboo scraps the flaky, needle-like and granular units with a certain shape and size are formed by mechanical processing of bamboo.

[GB/T 36394-2018, definition 2.1.17] 3.1.11.1 Bamboo strand particle the average length of bamboo material is greater than 50mm, the thickness is generally less than 1mm, and the aspect ratio is more than 2.1.

[GB/T 36394-2018, definition 2.1.19] 3.1.11.2 Bamboo stick particle Bamboo shavings are reprocessed by a hammer mill. The thickness and width are similar, about 3mm~6mm, and the length is 4 to 5 times the thickness.

3.1.12

Bamboo fiber

Bundles, filaments or flocculent units containing single fiber cells or multi-fiber cell aggregates made by chemical or mechanical processing of bamboo.

[GB/T 36394-2018, definition 2.1.20] 3.1.12.1 Bamboo fiber for panels Bundle-shaped short fibers made by mechanically refining bamboo, suitable for the production of fiberboard and other composite materials.

[GB/T 36394-2018, definition 2.1.20.1] 3.1.13 Bamboo flour Powder processed from bamboo.

[GB/T 36394-2018, definition 2.1.22] [GB/T 36394-2018, definition 2.1.20]

3.2 Material terms

3.2.1

Bamboo-based material for engineering Materials used for engineering construction made of bamboo as the main raw material, including round bamboo for engineering and engineering bamboo.

3.2.2

Round pole bamboo for engineering After processing, the bamboo stalks can be directly used for engineering construction.

3.2.3

Engineered bamboo

The board, square or profile made of bamboo after reorganization or composite processing and can meet the requirements of project construction.

3.2.4

Bamboo-based panels

A board made of bamboo by sizing and pressing.

3.2.4.1

Decorative bamboo-based panels Bamboo wood-based panels with decorative and processed surfaces.

[GB/T 36394-2018, definition 2.2.1] 3.2.4.2 Overlaid bamboo-based panels with resin impregnated paper Film-coated bamboo wood-based panel Bamboo wood-based panels covered with synthetic resin impregnated paper.

[GB/T 36394-2018, definition 2.2.1.2] 3.2.5 Bamboo veneer A sheet-like material with a certain width, which is sliced or sawed from bamboo tube peeling, bamboo glulam or bamboo composite timber.

[GB/T 36394-2018, definition 2.1.11] 3.2.6 Plybamboo Bamboo is pressed according to the principle of plywood.

3.2.7

Bamboo sliver panel

Bamboo plywood is a bamboo plywood formed by crisscrossing and forming blanks.

3.2.7.1

Bamboo curtain panel the bamboo curtain is a bamboo plywood made by crisscrossing and gluing.

3.2.7.2

Bamboo mat panel

Bamboo mat plywood

The bamboo mat is made of bamboo plywood by assembling and gluing.

3.2.8

Bamboo strip panel

A bamboo plywood made of bamboo strips crisscrossed together and glued together.

3.2.8.1

Plain pressed bamboo strip panel the finely planed bamboo strips are placed horizontally and glued, and then horizontally pressed into a bamboo strip plywood with a wide line pattern.

Figure 1 Flat pressed bamboo plywood

3.2.8.2

Side pressed bamboo strip panel the finely planed bamboo strips are vertically placed and glued, and then pressed laterally to form a bamboo strip plywood with a narrow line pattern.

Figure 2 Side-pressed bamboo plywood

3.2.8.3

Combined bamboo strip panel combined bamboo strip panel Finely planed bamboo strips are placed and glued at horizontal or vertical intervals, and the bamboo strip plywood is made by flat pressing and side pressing.

Figure 3 Combined bamboo plywood

3.2.9

Bamboo bundle panel

A bamboo plywood made by crisscrossing bamboo bundles and gluing together.

3.2.10

Composite plybamboo

A bamboo plywood made of two or more kinds of bamboo materials according to the crisscross pattern and gluing.

3.2.11

Laminated bamboo sliver lumber the board and square timber are laminated and glued together with bamboo strips.

3.2.12

Laminated bamboo curtain lumber A square board made of bamboo curtains along the pattern of laminated blanks, glued and hot pressed.

[GB/T 36394-2018, definition 2.2.7] 3.2.13 Glue laminated bamboo the planed bamboo slats are slabs and squares formed by forming and gluing along the grain in the length direction.

3.2.13.1

Laminated flattened bamboo Bamboo laminated timber made of bamboo panels.

3.2.13.2

Laminated finger-jointed bamboo Directional Reorganization of Bamboo Glulam Bamboo laminated timber made from finger-joined bamboo strips.

3.2.13.3

Plain pressed glue laminated bamboo the finely planed bamboo strips are placed horizontally and glued, and then horizontally pressed into a bamboo laminated timber with a wide line pattern.

Figure 4 Flat pressed bamboo laminated timber

3.2.13.4

Side pressed glue laminated bamboo the finely planed bamboo strips are placed vertically and glued, and then pressed laterally to form a bamboo glulam with a pattern of narrow lines.

Figure 5 Side pressure type bamboo laminated timber

3.2.13.5

Combined glue laminated bamboo at the same time, it is a bamboo laminated lumber made of a combination of flat-pressed and side-pressed laminated bamboo.

Figure 6 Combined bamboo laminated timber

3.2.14

Reorganized bamboo scrimber Reconstituted bamboo timber the bamboo bundles are assembled and glued along the pattern of the board and square timber.

3.2.14.1

Bamboo-based fiber composites Reconstituted bamboo made from flaky bamboo bundles (bamboo fiberized veneer).

3.2.14.2

Caramelised bamboo scrimber Reconstituted bamboo made from heat-treated bamboo bundles.

3.2.14.3

Dyed bamboo scrimber Reconstituted bamboo made from dyed bamboo bundles.

3.2.14.4

Hot-pressed bamboo scrimber the bamboo bundle is a recombined bamboo formed by hot-pressing and gluing the bamboo bundles along the pattern.

3.2.14.5

Cold molded and hot cured bamboo scrimber the bamboo bundles are assembled according to the pattern, cold pressed and then heated to solidify and glued together to form a reconstituted bamboo.

3.2.15

Bamboo particle board Bamboo particle board A board made of bamboo scraps after drying, sizing, paving, and hot pressing.

[GB/T 36394-2018, definition 2.2.13] 3.2.15.1 Oriented bamboo strand board A board made of bamboo narrow, long and thin flat shavings by sizing, directional paving and hot pressing.

[GB/T 36394-2018, definition 2.2.14] 3.2.16 Bamboo fiberboard the bamboo material is processed into bamboo fiber for artificial board, which is dried, sizing, paving, and hot pressed.

[GB/T 36394-2018, definition 2.2.12] 3.2.17 Bamboo-plastic composite Bamboo powder, bamboo fiber or bamboo scraps are fully mixed with thermoplastic resin and additives, and then processed by extrusion, molding or flat pressing.

Material or profile.

[GB/T 36394-2018, definition 2.2.11] 3.2.18 Bamboo-wood composites Board squares and profiles made of bamboo, wood and man-made boards as the unit, formed by forming blanks, gluing and pressing.

[GB/T 36394-2018, definition 2.2.15]

3.3 Product term

3.3.1

Structural bamboo components Load-bearing components mainly made of bamboo engineering materials, such as bamboo beams, bamboo columns, bamboo shear walls, bamboo purlins, etc.

3.3.2

Bamboo beam

A beam mainly made of bamboo engineering materials.

3.3.3

Bamboo column

The column is mainly made of bamboo engineering materials.

3.3.4

Bamboo truss

A truss mainly made of bamboo engineering materials.

3.3.5

Bamboo purlin

The purlin is mainly made of bamboo engineering materials.

3.3.6

Bamboo shear wall

Shear wall mainly made of bamboo engineering materials.

3.3.7

Bamboo landscape guardrail the landscape guardrail is mainly made of bamboo engineering materials.

3.3.8

Bamboo moulding

Decorative wire made from bamboo.

3.3.9

Bamboo flooring

A strip-shaped paving material made of bamboo or bamboo man-made board as the main raw material.

[GB/T 36394-2018, definition 2.3] 3.3.9.1 Indoor bamboo flooring Bamboo flooring that meets indoor use conditions, but cannot withstand long-term flooding or high humidity.

[GB/T 36394-2018, definition 2.3.4] 3.3.9.2 Outdoor bamboo flooring Bamboo flooring with weather resistance and biodegradability resistance, suitable for outdoor use.

[GB/T 36394-2018, definition 2.3.5] 3.3.9.3 Laminated bamboo flooring Floor made of laminated bamboo as the main raw material.

3.3.9.4

Bamboo scrimber flooring Bamboo flooring made of restructured bamboo as the main raw material.

[GB/T 36394-2018, definition 2.3.3] 3.3.9.5 Flattened bamboo flooring the surface layer and main components are made of bamboo spreading flat material.

3.3.9.6

Bamboo-wood composite flooring the floor is composited with bamboo as the surface layer and wood or artificial board as the base material.

[GB/T 36394-2018, definition 2.3.6] 3.3.10 Bamboo furniture Furniture made of bamboo and (or) bamboo man-made panels as the main material.

3.3.10.1

Indoor bamboo furniture Bamboo furniture suitable for indoor use.

3.3.10.2

Outdoor bamboo furniture it is weather-resistant and biodegradable, suitable for outdoor bamboo furniture.

3.3.10.3

Original bamboo furniture bamboo-culm furniture Furniture made of bamboo tube or bamboo sheet as the main material.

3.3.10.4

Laminated bamboo furniture Furniture made of laminated bamboo as the main material.

3.3.10.5

Bamboo scrimber furniture Furniture made of reconstituted bamboo as the main material.

3.3.10.6

Bamboo-wood composite furniture Furniture made of bamboo-wood composite material as the main material.

3.3.11

Bamboo stair

Stairs made of bamboo and (or) bamboo man-made panels as the main material.

3.3.12

Bamboo window

A window made of bamboo or bamboo man-made panels.

3.3.13

Bamboo door

Doors made of bamboo or bamboo wood-based panels.

3.3.14

Bamboo concrete form board Take bamboo mats, bamboo curtains, etc. as the basic unit, the surface is covered with resin-impregnated adhesive film paper and/or wood veneer, and the assembly blank is glued and pressed.

Bamboo plywood for concrete construction.

[GB/T 36394-2018, definition 2.2.6.6] 3.3.15 Bamboo joist for concrete form board A joist made of bamboo as the main raw material.

3.3.16

Bamboo scaffolding

Scaffolding made of bamboo as the main raw material.

3.3.17

Bamboo winding composite pipe A tube made of bamboo as a base material, thermosetting resin as an adhesive, and a winding process.

3.4 Processing terms

3.4.1

Removing outer grain the process of removing the part protruding from the outer wall of the bamboo tube.

3.4.2

Removing inner grain the process of removing the part of the bamboo joint that protrudes from the inner wall of the bamboo tube.

3.4.3

Splitting open

The process of dividing the bamboo tube longitudinally.

3.4.4

Sawing open

The process of longitudinally splitting the bamboo tube into bamboo strips.

3.4.5

Sliver splitting

The processing process of splitting bamboo slices longitudinally into bamboo slices.

3.4.6

Bamboo woven mat weaving Weaving bamboo curtains with bamboo strips, bamboo bundles, bamboo silk and other bamboo materials according to a certain weaving method.

3.4.7

Bamboo curtain weaving the bamboo strips are woven into the processing process of the bamboo mat in a certain weaving method.

3.4.8

Defibering

The process of rolling and rolling bamboo materials such as bamboo chips, bamboo strips, and semi-circular bamboo tubes into bamboo bundles or fiberized bamboo veneers.

3.4.9

Bleaching

The process of using bleaching agent to treat the color of bamboo.

3.4.10

Thermal treating

Charring

The process of treating bamboo under high temperature, humidity and oxygen conditions.

3.4.11

Drying

With the help of drying media such as hot air, the bamboo is dried to the moisture content required by the process.

3.4.12

Pre-glue drying

The process of drying the bamboo without glue to the moisture content required by the process with the help of drying media such as hot air.

3.4.13

Post-glue drying

The process of drying the glued bamboo to the moisture content required by the process with the help of drying media such as hot air.

3.4.14

Gluing

The process of applying the specified adhesive to bamboo, commonly used methods include dipping, gluing and spraying.

3.4.15

Adhesive dipping

The process of dipping adhesive into bamboo strips, bamboo mats, bamboo curtains, bamboo bundles and other bamboo materials.

3.4.15.1

Glue spreading

The process of uniformly rolling the adhesive on the surface of bamboo veneers, bamboo strips, and bamboo flat panels.

3.4.15.2

Glue spraying

The process of spraying the adhesive evenly on the surface of bamboo fiber, bamboo shavings and other bamboo materials.

3.4.16

Forming

The process of evenly spreading bamboo strips, bamboo curtains, bamboo mats, bamboo bundles and other bamboo materials into slabs according to certain rules.

3.4.17

Plain pressing

The process of placing the bamboo strips horizontally, applying glue, and horizontally pressing them into a laminate with a wide line pattern.

Figure 7 Flat laminated board

3.4.18

Side pressing

The process of placing the bamboo strips vertically, applying glue, and pressing them laterally to form a laminate with a pattern of narrow lines.

Figure 8 Side laminated board

3.4.19

Hot-pressing

The process of pressing and heating the slab into a plate after a period of time.

3.4.20

Cold molding and hot curing A process in which the slab is molded and then heated to solidify it.

3.5 Performance

3.5.1

Density

The mass of a substance per unit volume.

3.5.2

Absolute moisture content the percentage of the moisture content of the material to the absolute dry mass of the material.

3.5.3

Modulus of rupture; MOR the ratio of the bending moment of the material under the maximum static load to the flexural section modulus.

[GB/T 18259-2018, definition 2.81] 3.5.4 Modulus of elasticity; MOE Within the elastic limit range, the ratio of stress to strain generated by a material due to load.

[GB/T 18259-2018, definition 2.82] 3.5.5 Strength weight ratio the ratio of the strength and density of the material.

3.5.6

Tensile strength

The ratio of the maximum tensile load of the specimen to the loaded area of the specimen.

[GB/T 18259-2018, definition 2.85] 3.5.7 Compression strength the ratio of the maximum compressive load of the specimen to the loaded area of the specimen.

[GB/T 18259-2018, definition 2.86] 3.5.8 Shear strength the ratio of the maximum shear load of the specimen to the shear area of the specimen.

Note. According to the load form, it is divided into. tensile shear, pressure shear and horizontal shear.

[GB/T 18259-2018, definition 2.87] 3.5.9 Horizontal shear strength the ratio of the maximum shear load of the specimen to the shear area of the specimen when the material is subjected to the maximum static load of the short beam shear.

3.5.10

Impact strength

The ratio of the energy consumed when the specimen is bent and broken under the action of impact load to the load area of the specimen.

[GB/T 18259-2018, definition 2.89] 3.5.11 Screw holding capability Use the wood screw of the specified model, screw it into the board to a certain depth, and pull it out with the maximum pulling force required.

Note. It is divided into nail holding power on the board surface and nail holding power on the side of the board.

[GB/T 18259-2018, definition 2.79] 3.5.12 Internal bond strength the ratio of the maximum load to the loaded area when the specimen fails under the action of the tensile load on the vertical plate surface.

[GB/T 18259-2018, definition 2.83] 3.5.13 Surface bond strength the ratio of the maximum load of the surface layer of the test piece at a specified depth to the load area of the test piece under the action of the tensile load of the vertical plate surface.

[GB/T 18259-2018, definition 2.84] 3.5.14 Bonding strength the ratio of the maximum load to the glued area required to cause failure of the interface between the adhesive and the adherend in the glued sample or its vicinity.

[GB/T 18259-2018, definition 2.80] 3.5.15 Boiling water resistance A measure of the ability of a material to resist the effects of heat and humidity.

[GB/T 18259-2018, definition 2.71] 3.5.16 Water absorption After the test piece is immersed in water at a certain temperature for a specified time, the percentage of its mass increase to the original mass.

[GB/T 18259-2018, definition 2.70] 3.5.17 Thickness swelling After the specimen is immersed in water at a certain temperature for a specified period of time, the increase in thickness is the percentage of the original thickness.

[GB/T 18259-2018, definition 2.69] 3.5.18 Width swelling After the specimen is immersed in water at a certain temperature for a specified period of time, the increase in its width is the percentage of the original width.

3.5.19

Dimensional stability the ability of a material to maintain its original size and shape when the environmental conditions are changed.

[GB/T 18259-2018, definition 2.65] 3.5.20 Durability Long-term resistance to damage by organisms (fungi, insects, etc.) or external environmental factors (high temperature, light, humidity, etc.).

[GB/T 18259-2018, definition 2.66] 3.5.21 Creep Under certain environmental conditions, when a material is subjected to a constant external force, its deformation gradually increases with time.

[GB/T 18259-2018, definition 2.72] 3.5.22 Formaldehyde release; formaldehyde emission Wood-based panels made from urea-formaldehyde resin and other formaldehyde series adhesives continuously emit formaldehyde to the outside world during the manufacturing, stacking and use processes the phenomenon of gas.

Note. The methods for measuring the amount of formaldehyde released from wood-based panels include. large chamber method, small chamber method, 1m3 climate chamber method, gas analysis method, dryer method and perforation extraction method Wait.

[GB/T 18259-2018, definition 2.73]

3.6 Defect term

3.6.1

Mildew

Changes in material and color due to the growth of mold and discoloration bacteria.

3.6.2

Decay

The phenomenon of bamboo tissue structure rot and disintegration caused by decomposition of bamboo cell walls by decaying bacteria or other microorganisms, including white rot, brown rot and Soft rot etc.

3.6.3

Stain

Discoloration marks caused by mildew or decay of bamboo.

3.6.4

Worm hole

Holes and passages made by borers or their larvae in bamboo wood.

3.6.5

Delamination

Bamboo wood-based panels are the phenomenon of separation of glued surfaces caused by lack of glue or poor glue.

3.6.6

Blister blow; blister Due to the failure of gluing, voids appear in the board and locally raised defects on the surface.

[GB/T 18259-2018, definition 2.45] 3.6.7 Crack split the separation of bamboo fibers along the grain ...