BTECH MOCKBOARDS-MELODY

Composite wood or man made wood

It includes a range of wood derivative products which are manufactured by binding together strands, particles, fibers or veneers of wood.

Engineered wood

materials engineered to precise design specifications which are tested to meet certain construction standards: ex. Plywood

Composite Wood Panel

A wood panel consisting of two face veneers bonded to a reconstituted wood core.

Plywood,

laminated veneer lumber

parallel strand lumber

stamina wood

parallam

Veneer-based

Oriented strandboard

laminated strand lumber

waferboard

particle board

Particle-Based

Insulation board

syrocowood

homasote

masonite

medium density fiberboard

hardboard

Fiberboard

Fibercement board

fibercement siding

gypsum board

papercrete

Mineral bonded particle board and fiberboard

Plywood

A wood panel product made by bonding veneers together under heat and pressure, usually at right angles to each other.

Ordinary

Marine

Form

Fancy

Pre-finished plywood panelling (DANARRA)

Types of Plywood

Casein glue

Used in dry location but not exposed directly to rain or water

Phenol-Formaldehyde Resin glue

Requires high-temperature for curing; water resistant

Resorcinol-phenol formaldehyde

Expensive but have qualities necessary for durability and water resistance

Laminated veneer lumber (LVL)

Engineered wood product that uses multiple layers of thin wood assembled with adhesives under heat and pressure using a waterproof adhesive; it is stronger, straighter and more uniform in size and shape

Parallel Strand Lumber (PSL)

A structural lumber product made by bonding long, narrow wood strands together under heat and pressure using a waterproof adhesive; used as beams and columns in post and beam construction

Oriented strandboard

A non-veneered wood panel commonly used for sheathing and as sub-flooring, made by bonding three or five layers of long, thin wood strands under heat and pressure using waterproof adhesive.

Waferboard

A non-veneered panel product composed of large, thin wood flakes bonded under heat and pressure with a waterproof adhesive.

Particle board

A non-veneered composite wood panel product consisting of cellulosic particles made by bonding small wood particles with a synthetic resin under heat and pressure.

Chipboard

A class of building board made from wood and particles in a binder often faced with veneer; made by binding phenolic resin or urea formaldehyde glue

Fiberboard

A fibrous felted homogenous panel made from lignocellulosic fibers and having a density of less than 490 kg/m3 but not more than 159 kg/m3

Insulating fiberboard

Components used for the manufacture of this type of board are wood, sugar cane, asbestos and binder

Insulating Grade

Sheathing Grade

Grades of Fiberboard

Insulating Grade

used as an insulating, decorative panels, decorative coeiling tile, V-notch plaster base and roof insulation with standard thickness ranging form 1/2", 5/8", 3/4" and 1 inch.

Sheathing Grade

has both surfaces and all edges coated with asphalt and other fibers impregnated with asphalt during manufacture

Medium density fiberboard (MDF)

Composite panel product generally consisting cellulosic fibers mixed with a synthetic resin or other alternative bonding element and joined together under heat and pressure

Hardboard

A very dense felted, homogenous panel made from lignocellulosic fibers consolidated under heat and pressure in a hot press to a density not less than 490 kg/m3

Standard Hardboard

Tempered hardboard

Low Density Hardboard

Grades of Hardboard

Standard Hardboard

A type of hardboard that is flexible and quite easily bent, light brown

Tempered hardboard

made by impregnated standard board with tempering compounds of oils and resin baking it to polymerize the tempering material

Low Density Hardboard

a grade of hardboard has low density and used for lightweight application

Fiber cement board

A lightweight _ made of fibers and portland cement, quartz sand and additives; a versatile and durable material used for exterior and interior application such as ceiling, partitions and siding

Gypsum board or plaster board

A wallboard having a gypsum core; sometimes referred to as plasterboard that is made typically made of layer of gypsum plaster pressed between two thick sheets of paper then kiln dried.m

Gypsum wallboard

A fireproof sheathing used for interior and ceiling applications; this materials is also used for partitions that do not require framing

Gypsum Lath

Gypsum board with a gypsum core and heavy paper on both sides

Gypsum Precast Roof Decking

Perfect gypsum containing various types of fibers for additional strength; made with either square plank or edged plank

Wood wool cement board

A non structural material in low cost housing constructions which may be used for heat insulation and sound absorption but not as fire retardant material

Asbestos cement board

A dense, rigid board containing a high percentage of fibers bonded with Portland cement; characterized by its high resistance to fire, flame and weathering but has low resistance to heat flow

Wallboard

A rigid sheet composed of wood pulp, gypsum or other materials

Strawboard

A hardboard made of compressed wheat straw and processed and covered with a tough kraft paper

Structural Board

Insulation grade

Grades of strawboard

Structural Board

type of strawboard which is used as non load bearing partition, as plaster base for insulating purposes

Insulation grade

used primarily for roof deck insulation

Waferboard

a non-veneered panel product composed of large, thin wood flakes bonded under heat and pressure with a waterproof adhesive.

Corkboard

Made from cork granules and mixed with synthetic resin

Tempered board

A hardboard impregnated with a drying oil or other oxidizing resin and baked to improve its hardness and moisture resistance

Wallboard

A rigid sheet composed of wood pulp, gypsum or other materials; may be fastened to the building to provide an interior surface finish; the long edges of the board usually tapered to provide easy treatment of joints when board is erected

Peg Board/ Perforated Board

Trademark for a brand of tempered hardboard having regularly spaced perforations into which hooks may be inserted for the storage or display of articles.

Gang Nail system

system of wood construction that uses spiked metal plates to assemble members as in a truss.

Glue laminated timber

Also called "gluelam"; type of a structural timber prodict composed of several layers of dimensional lumber glued together

Glued Built up member

structural members, the sections of which are composed of built-up member, plywood or plywood in combination with lumber, all parts are bonded with adhesive

Structural Glued Laminated Timber

any member comprising an assembly of laminations of lumber in which the grain of all laminations are approximately parallel longitudinally, in which all parts are bonded with adhesive

Cast-in-place concrete

Concrete deposited, formed, cured and finished in its final position on site as part of a structure ; material of choice for slab-on ground and foundations because of its long term durability and structural support

Ready mixed concrete

Proportioned and mixed off the site

Traditional Forms

concrete forming technique uses temporary forms, typically made of aluminum; rigid foam insulation is placed inside the forms or between the forms and held in place with a system of non-conductive ties

Tunnel Forms

concrete forming technique wherein walls, floors and ceilings are cast at the same time. This technique is best suited to multi-family buildings and attached housing where room dimensions are repeated.

Pre-cast concrete

Also call Pre-fabricated. It is a from of construction, where concrete is cast in a reusable mould or form which is then cured in a controlled environment, transported to the construction site and lifted into place; mass production

Large-panel system

category of pre-cast concrete that refers to multistory structures composed of large wall and floor concrete panels connected in the vertical and horizontal directions so that the wall panels enclose appropriate spaces for the rooms within the building

Frame Systems

Precast frames can be constructed using either linear elements or spatial beam-column sub assemblages.

Slab-column systems with walls

These systems rely on shear walls to sustain lateral load effects, whereas the slab-column structure resists mainly gravity loads.

Flat Plate

A concrete slab or uniform thickness reinforced in two or more directions and supported directly by columns without beams and girders; suitable for short to medium spans with relatively light live loads; best for moderate spans

Flat Slab

a flat plate thickened at its column supports with column capitals and drop panels to increase its shear strength and moment-resisting capacity: suitable for heavily loaded spans

Ribbed slab

A reinforced concrete slab cast integrally with a series of closely spaced joists which in turn are supported by a parallel set of beams. It is designed as a series of parallel t-beams

Distribution Rib

A rib formed perpendicular to the joists of a ribbed slab to distribute possible load concentrations over a larger area one required for spans between 20 and 30 ft. and two for spans over 30ft

Joist band

A broad, shallow supporting beam for a ribbed slab that is economical to form since its depth is the same as that of the joists.

Pan

A reusable metal or fiberglass mold used in forming a ribbed slab, available in standard 20- and 30- inch

Tapered endform

A pan to form thickened joist ends for a greater shear resistance in a ribbed slab.

Waffle Slab

A two-way concrete slab reinforced by ribs in two directions.

Waffle Slab

These are able to carry heavier loads and span longer distances than flat slabs. It is a monolithic poured concrete slab

Dome

A square metal or fiberglass pan used in forming the ribs of a waffle slab

Lift slab

____ structures are one of the most efficient and economic ways of construction. This is considered a marketable and economical technique. It is the most used method due to its flexibility and ease of assemblage. Are cast on ground level and, using jacks are lifted into position

Slip form

______ construction is a method for building large towers or bridges from concrete. Application is Skylon Tower in Niagara Falls Ontario 1965

Composite Construction Method

provides a method of using two materials together so as to utilize each material to its best advantage.

Spanstress Floor System

They are also known as spanstress pre-cast connectors. Precast fabrications are made out of rebars and concrete as specified on its particular usage by computing the span of the posts and its load. Used for earthquake-proofing

C-Joist

a pre-cast, pre-stressed concrete product use for floor and roof slab system

Pre-stressed concrete

Concrete reinforced by pre-tensioning high strength steel tendons within their elastic limit to actively resist a service load.

Pre-Tension

to prestress a concrete member by tensioning the reinforcing tendons BEFORE the concrete is cast

Post-Tension

to prestress a concrete member by tensioning the reinforcing tendons AFTER the concrete is cast

Prestress

To introduce internal stresses to a concrete member in order to counteract the stresses that will result from an applied load

Sheath

A tube for encasing tendons in a post-tensioned member by tensioning the reinforcing tendons after the concrete has set.

Bonded posttensioning

Posttensioning in which the reinforcing tendons are bonded to the surrounding concrete by injecting grout in the annular spaces around the strands.

Unbonded posttensioning

Posttensioning in which the annular spaces around the reinforcing tendons are not grouted, allowing the tendons to move relative to the surrounding concrete.

Solid Flat Slab

A pre-cast, stressed concrete plank suitable for short spans and uniform distributed floor and roof loads.

Waffle Slab

They are appropriate for most floor situations and also for irregular column layouts, curved floor shape, ramps etc.

Hollow-Core Slab

Also known as voided slab or hollow core plank. It is a pre-cast slab of pre-stressed concrete plank internally cored to reduce dead weight. It is suitable for medium to long spans and uniformly distributed floor and roof loads.

Single Tee

A precast, pre-stressed concrete slab having a broad, T-shaped cross section. It is a Load-bearing structure with a T-shaped cross section.

Double Tee

A precast, pre-stressed concrete slab having two stems and a broad cross section resembling the capital letters TT.

Double Tee

It forms a structural suspended floor concrete floor for use where large column open spaces are required.

Inverted Tee

A precast, pre-stressed ledger beam having a cross-section resembling an inverted capital T.

Inverted Tee

Precast Concrete structural _ beams are used in conjunction with double tees anywhere that a buildings construction requires a larger span than a standard double tee can accomplish such as parking slots, event centers and industrial buildings.

L-Beam

A precast, pre-stressed ledger beam having a cross section resembling the capital L. It is designed in a form of an L to provide bearing.

L-Beam

This and inverted T-beams are typical floor beams because of the reduced overall structural depth.

Channel Beam

It is used for floors in the intermediate spans. Can be used for one way slabs and is being used on a large scale in construction of low cost housing.

Box Girder

_ is in box or tubular form that forms an enclosed tube with multiple walls, rather than an I or H beam.

Box Girder

Originally constructed of riveted wrought iron, they are now found in rolled or welded steel, aluminum extrusions or pre-stressed concrete.

concrete deck

stiffened plate

web

stiff diaphragms

A box girder consists of:

I-Beams

are widely used in the construction industry and are available in a variety of standards sizes. It may be used both as beams and columns.

stiffness

the _ of the I-beam will be chosen to minimise deflection

stiffness and mass

the _ and _ are chosen to prevent unacceptable vibrations

bending failure by yielding

where the stress in the cross section exceeds yield stress

sideways or the entire cross section

bending failure by local buckling

where the flange or web is so slender as to buckle locally