B

1.Plates of steel used for making boilers and tanks.2.The accessories and appurtenances associated with a boiler plant.3.Those portions of the specifications that commonly apply to most buildings,so are commonly reproduced from one set of specifications to another.

The heat capacity of a boiler.

A device used to return condensate to a low pressure boiler when it cannot flow into the boiler by gravity.

A room in which one or  more steam or hot water boilers and associated equipment are located.

Metal from the inner surfaces of a boiler which decomposes and flakes off (in much the same manner as rust forms).

A medium hardness steel which is rolled into plates 0.25 in.(0.6 cm) to 1.5 in.(3.8 cm) thick;used in fabricating boilers.

A large tub used to slake high calcium or magnesium quicklime to form a lime putty.

Wood paneling on interior walls,usually floor to ceiling;as a rule enriched by carving,gilding,painting,or,rarely,inlaying.Also see paneling,wainscot.

A molding projecting beyond the surface of the work which it decorates,as that covering the joint between a panel and the surrounding stiles and rails;often used to conceal a joint where the joining surfaces are at different levels.

A low single post,or one of a series,usually stone,set to prevent motor vehicles from entering an area.

1.A short horizontal timber or steel member placed on top of a column to support and decrease the span of beams or girders.2.One of the rolls forming the sides of an Ionic capital,joining the volutes of the front and rear faces;a baluster or pulvinus.3.In centering an arch,a crosspiece which connects the ribs and supports the voussoirs.4.A blocking chisel for masonry work. 5.A horizontal piece of wood or a timber that caps a column,pillar,or post to provide greater bearing area for supporting a load imposed from above;often highly decorative.
 

A form of rusticated masonry;courses of masonry which are curved or bow out ward like the sides of a cushion.

1.A metallic pin or rod having a head at one end and an external thread on the other for screwing up a nut;used for holding members or parts of members together.2.A short section cut from a tree trunk.3.A short log from which veneer is peeled.

A bolt having a fixed head,but no threads or nuts;intended for a subsequent threading operation.

The enlarged shape which is preformed on one end of a bolt to provide a bearing surface.

See stud shooting.

In concrete construction,a tube which surrounds a bolt in a concrete wall to prevent the concrete from sticking to the bolt.

Same as stud.

In an electrical circuit,a type of knife-blade switch having jaws into which the knife blades fit under heavy pressure when the switch is closed;this pressure assures a low-resistance electrical connection.

See bowtell.

In days before commercial flour was readily available,a small building in which flour was sifted.

Abbr.for bill of materials.

Swelling out;having a convex shape.

A bid submitted in good faith,complete and in prescribed form which meets the conditions of the bidding requirements and is properly signed by someone legally authorized to sign such bid.

The area of interface between two elements across which adhesion develops (or  may develop),as between concrete and reinforcing steel.

A horizontal reinforced concrete beam used to strengthen a masonry wall so as to avoid its cracking;the reinforcement often extends around the perimeter of the wall.

A hollow concrete masonry unit with portions depressed to form a continuous channel in which reinforcing steel can be placed for embedment in grout.A lintel block sometimes is used as a bond-beam block.
 

A blister at the interface between the coating and core of metal clad products.

1.A material used to prevent a sealant from bonding to the bottom of a joint.2.A material used to prevent adhesion of newly placed concrete and the substrate.3.A material to facilitate independent movement between two units that would otherwise behave mono- lithically.
 

1.A coat of bonding agent or plaster to provide a bond for succeeding coats of plaster.2.A coat of primer used as a sealer or to ensure adhesion of the paint to the surface.
 

A course of headers or bond stones to bond the facing masonry to the backing masonry.

That part of the joint face to which a field molded sealant is bonded.

In masonry,a bondstone that extends the full thickness of the wall;also called a throughstone.

Obsolete term for development length.

A structural member of pre stressed concrete in which the tendons are bonded to the concrete either directly or by means of grouting.

In prestressed concrete,grouting the annular spaces around a tendon after it is stressed,thereby bonding the tendon to the concrete.

A roof which carries a written warranty (usually for a specified period of time) that protects an owner against damage from leaks or other problems related to the weather tightness of the roof.

A sponge rubber like carpet underlayment that has been adhered to the carpet backing during its manufacture.

In prestressed concrete,a prestressing tendon which is bonded to the concrete either directly or by means of grouting.

A terrazzo flooring whose underbed is poured directly on the structural floor.

A warehouse where materials may be stored before their installation on a building project if they are not stored at the job site.The materials are “in bond,”that is, under the legal control of the project’s owner.

A masonry unit that bonds;also called a bondstone.

Said of a metal surface that has been phosphate coated.

A chemical substance applied to a suitable substrate to create a bond between it and a succeeding layer,as between a subsurface and a terrazzo topping or between a surface and the plaster that is applied to it.

A brick that acts as a bond stone.

1.An indication of a contractor’s credit rating.2.The maximum amount of money a bonding company will extend in contract bonds to a building contractor.

See dressing compound. 

1.A conductor used to provide bonding between metal parts of a system.2.A reliable conductor which ensures that there is good electrical conductivity between the metal parts to which it is connected.
 

Same as bondstone.

See animal black.