粒料

(Aggregate)

粒料

定義:粒料是一種粒狀材料，如砂、礫石、碎石、破碎的水硬性混凝土、或是爐石等，可作為混凝土或砂漿之填充材使用。

粒料為混凝土材料中主要的成分，約占混凝土體積60%~70%，粒料不僅會影響混凝土塑性，也影響混凝土耐久性、強度與熱學性質，並且影響硬固混凝土比重。粒料依顆粒大小可分為細粒料與粗粒料兩類，大部分的細粒料為砂與包含小於10mm之粉顆粒。而粗粒料為顆粒大小大於6mm以上的礫石或碎石。

Aggregate

Definition:

granular material, such as sand, gravel, crushed stone, crushed

hydraulic-cement concrete, or iron blast-furnace slag, used with a cementing

medium to produce either concrete or mortar.

Aggregates are the major constituent (ingredient) in concrete, making up 60% to

70% of the volume of concrete. Aggregates influence the workability of plastic

concrete and also the durability, strength, thermal properties, and density of

hardened concrete. Particle size divides aggregates into two categories: fine

and coarse. Most fine aggregates are sand and contain particles smaller than

3/8 in. (10 mm). Coarse aggregates may be either gravel or crushed materials,

with particles larger than about 1/4 in. (6 mm).