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一、前言道路柔性路面一般使用沥青材料为结合料,铺成的路面呈黑色,故称为黑色路面。彩色路面与浅色路面(明色路面)在国外已有使用。主要用于道路标志、游览区道路、桥面、隧道以及运动场等。我国上海、天津等城建部门也曾在城市道路中使用过彩色路面。本文主要叙述在多年冻土地区,使用浅色路面来代替黑色路面,以减少路面热量的吸收,保护冻土,使冻土不发生天然冰冻上限下移的情况,以避免发生热融性沉陷。
First, the preface Flexible asphalt pavement generally use asphalt material as binder, paving the road was black, so called black pavement. Color pavement and light-colored pavement (bright pavement) have been used abroad. Mainly used for road signs, tourist area roads, bridge deck, tunnels and playgrounds. China’s urban construction departments like Shanghai and Tianjin also used colored pavement in urban roads. This paper mainly describes the use of light-colored pavement instead of black pavement in permafrost regions to reduce the heat absorption on the pavement and protect the frozen so that the natural frozen upper limit will not shift downward in order to avoid the occurrence of hot melt subsidence.