Material which is moved by a the blade of a bulldozer.
Blade teeth
The width of a cutting blade often determines the number of teeth per inch on the blade. The type of cut to be made, and the material being cut determine the proper blade selection. Thicker blades have fewer teeth per inch for faster cuts and are generally used for softer woods that might clog a blade with more teeth. Blades with more teeth per inch make finer cuts and are useful with harder materials, plywoods and veneers.
Blanch
(1) To brighten by acid-cleaning. To bleach. (2) To keep light from the leaves and stems, keeping the plant tissue soft.
Blanket
Insulation batts. 40 to 100 feet lengths of insulation filled with fiberglass or mineral (rock) wool of some type. These blankets, known as rolls, are used when lengths of over 8 feet are needed. The blanket is cut to the size needed and secured to the framing by stapling flanges to it. Blankets come in various widths to fit 16" to 24" spans. Thicker blankets have higher R-ratings. Blankets come with a vapor barrier that is directed inside the house. If the blankets come unfaced, after they are in place, polyethelene sheeting is stapled to the studs.
Blanket insulation
Insulation in rolled-sheet form, often backed by treated paper that forms a vapor barrier.
Blanket insurance policy
Insurance policy covering multiple persons or pieces of property.
Blanket mortgage
A mortgage covering more than one property owned by the same owner.
Blast
Air forced into a furnace under pressure. Sudden rise in pressure caused by an instantaneous release of energy.
Blast doors
Doors that are specially designed and built to withstand or mitigate the pressure from a blast.
