瀝青混凝土是一種多層結構，通常由以下幾個主要組成部分構成：

Asphalt concrete is a multi-layered structure typically composed of the following main components:

1、基層：基層通常是路面下的底部層，它支撐和分散交通載荷，確保路面的穩(wěn)定性。基層通常由碎石或礦物顆粒組成。

1. Base layer: The base layer is usually the bottom layer under the road surface, which supports and disperses traffic loads, ensuring the stability of the road surface. The base layer is usually composed of crushed stones or mineral particles.

瀝青混凝土密度

Asphalt concrete density

2、底基層：底基層是基層之上的一層，它有助于分散交通載荷，減輕路面的壓力。底基層通常由更小的礦物顆粒組成。

2. Subbase layer: Subbase layer is a layer above the base layer, which helps to disperse traffic loads and reduce pressure on the road surface. The base layer is usually composed of smaller mineral particles.

3、瀝青層：瀝青層是瀝青混凝土的頂部層，它提供了平坦、耐磨和抗滑的路面。這一層由瀝青膠粘劑、骨料和填充劑混合而成。

3. Asphalt layer: The asphalt layer is the top layer of asphalt concrete, which provides a flat, wear-resistant, and anti-skid road surface. This layer is composed of a mixture of asphalt adhesive, aggregate, and filler.

4、表面層：表面層通常是瀝青混凝土路面的最頂部一層，它提供了更好的抗滑性和平滑度。這一層通常由細石子、沙子和特殊的表面處理材料組成。

4. Surface layer: The surface layer is usually the topmost layer of asphalt concrete pavement, which provides better skid resistance and smoothness. This layer is usually composed of fine stones, sand, and special surface treatment materials.

瀝青混凝土密度一般是多少

What is the general density of asphalt concrete

瀝青混凝土的密度通常是由其組成部分的類型和配比來決定的。一般而言，瀝青混凝土的密度在2.2克/立方厘米（g/cm?）到2.4克/立方厘米之間。這意味著每立方厘米的瀝青混凝土材料重量約在2.2克到2.4克之間。

The density of asphalt concrete is usually determined by the types and proportions of its components. Generally speaking, the density of asphalt concrete is between 2.2 grams per cubic centimeter (g/cm?) and 2.4 grams per cubic centimeter. This means that the weight of asphalt concrete material per cubic centimeter is approximately between 2.2 grams and 2.4 grams.