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ASTM C1372-11
Standard Specification for Dry-Cast Segmental Retaining Wall Units
3 стр.
Заменен
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84.24 $ (включая НДС 20%)
Разработчик:
Зарубежные/ASTM
ICS:
91.060.10 Walls. Partitions. Façades / Стены. Перегородки. Фасады
Сборник (ASTM):
04.05 Chemical–Resistant Nonmetallic Materials; Vitrified Clay Pipe; Concrete Pipe; Fiber-Reinforced Cement Products; Mortars and Grouts; Masonry; Precast Concrete / Химически устойчивые неметаллические материалы; Глазированные керамические трубы; Трубы бетонные; изделия из фиброцемента; Известковые цементные растворы; Монолитный бетон; Сборный бетон
Тематика:
Masonry
Описание
Реферат

This specification covers drycast segmental retaining wall units of concrete, machinemade from hydraulic cement, water, and suitable mineral aggregates with or without the inclusion of other materials. The units are intended for use in the construction of mortarless segmental retaining walls. The material composition of retaining wall units consists of cementitious materials like portland cement and its modified form, limestone, hydraulic cement, blended hydraulic cement, pozzolans, blast furnace slag cement, aggregates, and other constituents which include air-entraining agents, coloring pigments, integral water repellents, and finely ground silica. All units shall be sound and free of cracks or other defects that interfere with the proper placement of the unit or significantly impair the strength or permanence of the construction.

Область применения

1.1 This specification covers dry-cast segmental retaining wall units of concrete, machinemade from hydraulic cement, water, and suitable mineral aggregates with or without the inclusion of other materials. The units are intended for use in the construction of mortarless segmental retaining walls.

Note 1—When particular features are desired, such as density classification, higher compressive strength, surface texture, finish, color, or other special features, such properties should be specified separately by the purchaser. Suppliers should be consulted as to availability of units having the desired features.

1.2 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.

1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

Ключевые слова:
absorption; aggregates; cementitious materials; compressive strength; concrete masonry units; density classification; dimensions; durability; Building materials/applications--specifications; Cement materials/applications--specifications; Retaining walls; Segmental retaining wall units; Wall construction--specifications; Walls--specifications