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Title: Section 702  •  Size: 3595

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SECTION 702 - DEFINITIONS

For the purposes of this chapter, the terms, phrases and words listed in this section and their derivatives shall have the indicated meanings.

CONCRETE, CARBONATE AGGREGATE, is concrete made with aggregates consisting mainly of calcium or magnesium carbonate, e.g., limestone or dolomite, and containing 40 percent or less quartz, chert or flint.

CONCRETE, LIGHTWEIGHT AGGREGATE, is concrete made with aggregates of expanded clay, shale, slag or slate or sintered fly ash and weighing 85 to 115 pounds per cubic foot (pcf) (1360 to 1840 kg/m³).

CONCRETE, SAND-LIGHTWEIGHT, is concrete made with a combination of expanded clay, shale, slag or slate or sintered fly ash and natural sand. Its unit weight is generally between 105 and 120 pcf (1680 and 1920 kg/m³).

CONCRETE, SILICEOUS AGGREGATE, is concrete made with normal-weight aggregates consisting mainly of silica or compounds other than calcium or magnesium carbonate, and may contain more than 40 percent quartz, chert or flint.

F RATING is the time period that a through-penetration fire stop limits the spread of fire, flame and hot gases through the fire-stop assembly, including penetrating elements, when tested in accordance with the time-temperature curve defined in U.B.C. Standard 7-1.

T RATING is the time period that a through-penetration fire stop limits temperature rise through the fire-stop assembly, including penetrating elements, when tested in accordance with the time-temperature curve defined in U.B.C. Standard 7-1.

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