沥青混凝土是一种常用的道路铺装材料，以下是关于沥青混凝土的定义、应用和施工技术的一些关键信息：

Asphalt concrete is a commonly used road paving material. Here are some key information about the definition, application, and construction techniques of asphalt concrete:

定义

definition

沥青混凝土是由骨料、填充料和沥青结合料组成的复合材料。它是一种经过加热的骨料、填料与沥青按适当比例拌合而成的均匀混合物，经压实后形成沥青混凝土。

Asphalt concrete is a composite material composed of aggregates, fillers, and asphalt binders. It is a uniform mixture of heated aggregates, fillers, and asphalt mixed in appropriate proportions, which is compacted to form asphalt concrete.

应用

application

沥青混凝土广泛应用于车道、自行车道、机场跑道、主要公路和街道。它具有延展性，可以在各种气候和条件下使用，因此非常适合各种环境。此外，沥青混凝土还用于人行道、高速公路、机场滑行道和跑道、各种场地和其他地面上，铺设坚硬的路面。坑洞修复通常需要使用液态沥青混合物，硬化速度快，铺设后无需压实或找平。

Asphalt concrete is widely used in lanes, bike lanes, airport runways, major highways, and streets. It has extensibility and can be used in various climates and conditions, making it very suitable for various environments. In addition, asphalt concrete is also used on sidewalks, highways, airport taxiways and runways, various fields, and other surfaces to lay hard road surfaces. Pit repair usually requires the use of liquid asphalt mixture, which hardens quickly and does not require compaction or leveling after laying.

施工技术

construction technique 

基层准备及透层油施工：铺筑下面层沥青混合料前，清理基层，保证基底稍干、清洁，无任何松散的石料、灰尘和杂质。喷洒透层油，采用沥青洒布机，喷嘴与路表面形成约30度角，高度使路面上喷洒的透层油形成重叠。

Preparation of base layer and construction of prime coat: Before laying the asphalt mixture for the lower layer, clean the base layer to ensure that it is slightly dry, clean, and free of any loose stones, dust, and impurities. Spray the top coat oil using an asphalt distributor, with the nozzle forming an angle of about 30 degrees with the road surface, at a height that causes the top coat oil sprayed on the road surface to overlap.

沥青混合料的拌制与运输：采用间歇式拌和机，沥青碎拌和设备每台实际生产能力为150t/h，拌和时间为40秒。按照生产配合比，确定各种材料每锅用量，对配料系统进行设定。沥青加热温度控制在170~180°C（改性沥青高10-20°C），矿料比沥青高10~20°C。控制沥青混和料生产温度在150~175°C范围内。

Mixing and transportation of asphalt mixture: Intermittent mixer is used, and the actual production capacity of each asphalt crushing mixing equipment is 150t/h, with a mixing time of 40 seconds. According to the production mix ratio, determine the amount of various materials per pot and set the ingredient system. The heating temperature of asphalt is controlled at 170-180 ° C (10-20 ° C higher for modified asphalt), and the mineral aggregate is 10-20 ° C higher than asphalt. Control the production temperature of asphalt mixture within the range of 150-175 ° C.

压实技术：压实是确保路面密实度和平整度的关键环节。高效的压实设备，如振动压路机，不仅提高压实效率，还能确保沥青混凝土的均匀密实。正确的压实技术可以减少空气孔隙，提高路面的承载能力和抗裂性。

Compaction technology: Compaction is a key step in ensuring the compactness and smoothness of the road surface. Efficient compaction equipment, such as vibratory rollers, not only improves compaction efficiency but also ensures uniform compaction of asphalt concrete. The correct compaction technique can reduce air voids, improve the bearing capacity and crack resistance of the road surface.

接缝处理技术：在公路沥青混凝土路面施工中，接缝处理技术能够对施工缝进行填充、密封和修补，以此来减少水分、杂物的渗入，防止裂缝的产生，并增强路面的承载能力和耐久性。

Joint treatment technology: In the construction of asphalt concrete pavement on highways, joint treatment technology can fill, seal, and repair construction joints to reduce the infiltration of moisture and debris, prevent the occurrence of cracks, and enhance the bearing capacity and durability of the pavement.

沥青混凝土因其自重小、抗压强度大而被广泛应用于建筑领域，尤其在道路施工中，它能够提供安全平整的驾驶表面，适合在人流量大的地方使用，因为它具有柔韧性，可以防止在压力下开裂。此外，沥青的深色能吸收热量，有助于融化冰雪，这在寒冷的气候条件下尤其有用。

Asphalt concrete is widely used in the construction field due to its low self weight and high compressive strength, especially in road construction. It can provide a safe and smooth driving surface, suitable for use in areas with high pedestrian flow, because it has flexibility and can prevent cracking under pressure. In addition, the dark color of asphalt can absorb heat and help melt ice and snow, which is particularly useful in cold weather conditions.

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This article is provided by Jinan asphalt manufacturer on our website http://www.ycgjglcl.com We will provide you with wholehearted enthusiasm and welcome your visit