WELCOME TO OUR Building dictionary : Hanging post to haul road PROJECT
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Summary: Building dictionary to explain building jargon and terminology from A - Z.
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Building dictionary for the letter H - Page 3
Hanging post
The post from which a gate or door is hung.
Hanging rail
The horizontal section at the top and bottom of a door, to which the hinges are secured.
Hard copy
Information from a computer in printout form.
Hard plaster
Quick-setting calcined gypsum, usually used in finishing, often requiring a retarding agent to be incorporated in the mix to help control the set.
Hard water
Water containing a concentration higher than 85.5 ppm of dissolved calcium carbonate and other mineral salts.
Hard wired
A communications link permanently joining two devices, nodes, or stations.
Hardboard
Dense sheets of building material made from heated and compressed wood fibres.
Hardener
(1) Any of several chemicals serving to reduce wear and dusting when applied to concrete sustaining heavy traffic, such as a floor. (2) The curing agent of a two-part synthetic resin, adhesive, or similar coating. (3) A substance used to harden plaster casts or gelatin molds.
Hardness
(1) The resistance of a substance, material, or surface, to cutting, scratching, denting, pressure, wear, or other deformation. (2) The degree, expressed as parts per million or grains per gallon of calcium carbonate in water, to which calcium and magnesium salts are dissolved in water.
Hardtop
A road which has been hard-surfaced.
Hardwall
A base-coat plaster made from gypsum, often without aggregate.
Hardware
(1) A general term encompassing a vast array of metal and plastic fasteners and connectors used in or on a building and its inherent or extraneous parts. The term includes rough hardware, such as nuts, bolts, and nails, and finish hardware, such as latches and hinges. (2) The mechanical equipment associated with data processing. In Building Automation Systems, computer hardware includes the Central Processing Unit (CPU), hard disk drive, monitor (CRT), keyboard, controllers, and analog or digital point modules. Digital equipment such as controls, sensors, and actuators are considered field hardware.
Hardwood
A general term referring to any of a variety of broad-leaved, deciduous trees, and the wood from those trees. The term does not designate the physical hardness of wood, as some hardwoods are actually softer than some softwood (coniferous) species.
Hasp
A metal fastening device made up of a staple secured to and protruding from one member, and a hinge with a slotted plate fastened to another member. The slotted plate can be slipped over the staple and then locked with a tapered pin or a padlock.
Hasp lock
A device permanently secured to the hasp on a door which causes the hasp to be locked as soon as the door is closed. Hasp locks are often used in prisons.
Hatch
An opening in a floor or roof of a building, as in a deck of a vessel, having a hinged or completely removable cover. When open, a hatch permits ventilation or the passage of persons or products.
Hatchet
A wood-handled tool having a steel head flattened at one end and suitable for striking or driving, and formed at the other end into a wide, sharp blade suitable for chopping. The underpart of the blade may or may not be notched for pulling.
Haul
See haul distance.
Haul distance
The distance that any material must be transported.
Haul road
A crude temporary road built to facilitate the movement of people, equipment, and/or materials along the route of a job.
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