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Damp Proofing
Definition:

One or more coatings of a compound that is impervious to water. Usually applied to the back or face of the stone or the back of the wall at or near grade.


Dead Load
Definition:

Permanent gravity induced loads, such as those developed by the structure, finishes, and permanently affixed elements.
See also live load.


Dentil
Definition:

Block projections on an entablature.


Dentil Course
Definition:

Mold course immediately below the cornice, comprising of small, uniformly spaced blocks referred to as “dentils.”


Derrick
Definition:

A hoisting device, usually made up of a guyed mast and hinged boom with pulleys and cables.


Diamond
Definition:

A carbon based mineral, usually manmade, used as an abrasive in stone cutting equipment.


Diamond Match
Definition:

A vein matching technique in which contiguous faces of adjacent slabs are “unfolded” about two perpendicular axes, producing a vein pattern which has approximate symmetry about a point.


Diamond Wire Saw
Definition:

A machine using cable of various diameters and lengths, impregnated with diamond dust or more commonly fitted with cylindrical diamond coated segments. Diamond wire saws are used in quarrying, slabbing, and contour sawing operations.

 


Die
Definition:

A covering layer of interior stone from wainscot to ceiling.


Digital Inventory Management
Definition:

A software and camera system allowing fabricators and distributors to have a photographic inventory of their materials.


Digital Layout Application
Definition:

Software designed to allow CAD drawing files to be used with scaled digital photographs to allow a fabricator to preplan the layout of his slab or tile project prior to cutting.


Digital Templating
Definition:

A process for virtual, digital measurement of site conditions which eliminates the need to make physical templates. Digital templating information can be interfaced with various CAD and CNC systems to allow rapid transfer and utilization of the information.


Dimension Stone
Definition:

A natural stone product that has been cut, machined, and/or finished to specific size or shape.


Dolomite
Definition:

1. The mineral form of calciummagnesium carbonate. Constituent of some building limestones.
2. A crystalline variety of limestone containing in excess of 40 percent magnesium carbonate as the dolomite molecule.
Also called “dolostone”.


Dolomitic Limestone
Definition:

Limestone that contains more than 10 percent but less than 80 percent of the mineral dolomite.


Dolostone
Definition:

See entry 2 under dolomite.


Dovetail Slot
Definition:

A continuous groove with a trapezoid section resembling a dove’s tail.


Dowel
Definition:

A short piece of cylindrical nonferous metal used as a stone anchor.


Drafted Margin (British)
Definition:

Tooled border around the face of a stone. Also called “margin draft”.


Dressing
Definition:

The shaping and squaring of natural stone blocks for storage and shipment. Sometimes called “scabbing”.


Drill Rigs
Definition:

Machines used in quarry operations to bore holes in a linear path to facilitate separation of the stone loaf from its insitu position.


Drip
Definition:

A groove or slot cut beneath and slightly behind the forward edge of a projecting stone member, such as a sill, lintel or coping to cause water to drop at that location and prevent water from running down the face of the wall.


Drip Stone
Definition:

A projecting molding over the heads of doorways, windows and archways to throw off the rain. Also known as a “hoodmold” and, when rectangular, as a “label”.


Dry Seam
Definition:

A naturally occurring unhealed fracture in stone which may be a plane of weakness.


Dry Stack
Definition:

In rubble masonry construction, a selfsupporting wall erected without mortar.


Dual Finish
Definition:

Multiple contrasting finishes, such as thermal and polished, on one piece of stone.


Durability
Definition:

The measure of the ability of natural building stone to endure and to maintain its essential and distinctive characteristics of strength, resistance to decay, and appearance, while exposed to the elements encountered in its application environment.


Dutchman
Definition:

1. A small piece of stone inserted as a patch in a larger piece of dimension stone.
2. A small piece of stone inserted in an ashlar wall.