Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for open-graded asphalt concrete overlay of expressway
The invention relates to the technical field of road engineering, and discloses a construction method of an expressway open-graded asphalt concrete overlay, which comprises the following steps: step 1, preparation before construction, including preparation and preparation of open-graded asphalt concrete; secondly, the road surface is treated before construction; step 3, overlay: paving the asphalt concrete prepared in the step 1 on the pavement treated in the step 2; step 4, rolling and maintaining the pavement paved in the step 3; according to the method, the original pavement is subjected to heating pretreatment, so that the cooling rate after the heated asphalt concrete is in contact with the preheated original pavement is reduced, the heated asphalt concrete is prevented from being cooled too fast, the asphalt concrete overlay and the original pavement are thermally bonded, the bonding area of the asphalt concrete and the pavement is increased, and the adhesiveness is enhanced; the effective paving and rolling time is prolonged, so that the compaction is more sufficient, and the tensile strength and shear strength of the pavement are improved.
本发明涉及道路工程技术领域，本发明公开了一种高速公路开级配沥青混凝土罩面的施工方法，包括以下步骤：步骤一、施工前的准备，其中包括开级配沥青混凝土的准备和制备；步骤二、施工前对路面处理；步骤三、罩面：将步骤一制备好的沥青混凝土摊铺至步骤二中处理好的路面上；步骤四、对步骤三摊铺好的路面进行碾压和养护；本发明通过对原路面进行加热预处理，降低加热后沥青混凝土与预加热后原路面接触后的冷却速率，避免加热后的沥青混凝土过快冷却，沥青混凝土罩面与原路面为热粘结，增加沥青混凝土与路面结合面积，增强粘合性，延长了有效摊铺碾压时间，使压实更加充分，提高路面的抗拉强度和抗剪强度。
Construction method for open-graded asphalt concrete overlay of expressway
The invention relates to the technical field of road engineering, and discloses a construction method of an expressway open-graded asphalt concrete overlay, which comprises the following steps: step 1, preparation before construction, including preparation and preparation of open-graded asphalt concrete; secondly, the road surface is treated before construction; step 3, overlay: paving the asphalt concrete prepared in the step 1 on the pavement treated in the step 2; step 4, rolling and maintaining the pavement paved in the step 3; according to the method, the original pavement is subjected to heating pretreatment, so that the cooling rate after the heated asphalt concrete is in contact with the preheated original pavement is reduced, the heated asphalt concrete is prevented from being cooled too fast, the asphalt concrete overlay and the original pavement are thermally bonded, the bonding area of the asphalt concrete and the pavement is increased, and the adhesiveness is enhanced; the effective paving and rolling time is prolonged, so that the compaction is more sufficient, and the tensile strength and shear strength of the pavement are improved.
本发明涉及道路工程技术领域，本发明公开了一种高速公路开级配沥青混凝土罩面的施工方法，包括以下步骤：步骤一、施工前的准备，其中包括开级配沥青混凝土的准备和制备；步骤二、施工前对路面处理；步骤三、罩面：将步骤一制备好的沥青混凝土摊铺至步骤二中处理好的路面上；步骤四、对步骤三摊铺好的路面进行碾压和养护；本发明通过对原路面进行加热预处理，降低加热后沥青混凝土与预加热后原路面接触后的冷却速率，避免加热后的沥青混凝土过快冷却，沥青混凝土罩面与原路面为热粘结，增加沥青混凝土与路面结合面积，增强粘合性，延长了有效摊铺碾压时间，使压实更加充分，提高路面的抗拉强度和抗剪强度。
Construction method for open-graded asphalt concrete overlay of expressway
一种高速公路开级配沥青混凝土罩面的施工方法
ZHOU BINJIE (Autor:in) / WU JUTAO (Autor:in) / LI LINGZHANG (Autor:in) / WU DENGLEI (Autor:in) / NIE HUAN (Autor:in) / HUANG GUOCHENG (Autor:in) / LIANG JIANHONG (Autor:in) / MO NAIRONG (Autor:in) / WU LINA (Autor:in) / LI GEGE (Autor:in)
03.03.2023
Patent
Elektronische Ressource
Chinesisch
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