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A platform for research: civil engineering, architecture and urbanism
Pouring type gradient heat conduction pavement structure based on large-gap asphalt mixture framework
The invention discloses a pouring type gradient heat conduction pavement structure based on a large-gap asphalt mixture framework, which is characterized in that a large-gap asphalt mixture of a pavement is used as the framework, cement-based materials with different heat conductivities are used as fillers of framework gaps, and the framework is poured with the cement-based materials with the heat conductivities sequentially reduced from top to bottom in a layered manner; and the heat in the pavement tends to be transferred to the external environment from bottom to top under the driving of the gradient heat conductivity. The structure utilizes the structural characteristics of a large-gap asphalt mixture framework and the fluidity of a cement-based material, and exerts the thermal induction effect of gradient thermal conductivity, so that on the premise of meeting the basic use requirements of the pavement, the solar radiation heat absorbed by the pavement and transferred to the roadbed in summer can be reduced; heat in the roadbed in winter can be accelerated to be released to the external environment, the pavement is endowed with the capability of dredging cold energy in cold seasons, the problems of strong heat absorption and slow heat dissipation of a wide pavement in a plateau frozen soil region are solved, thermal disturbance of a pavement structure to frozen soil is relieved, and the stability of the frozen soil is improved.
本发明公开了一种基于大空隙沥青混合料骨架的灌注式梯度导热路面结构，通过以路面的大空隙沥青混合料作为骨架，以不同热导率的水泥基材料作为骨架空隙的填充物，对骨架分层灌注自上而下热导率依次减小的水泥基材料，使得路面内的热量在梯度热导率的驱动下趋向于从下至上传递至外界环境中。该结构利用了大空隙沥青混合料骨架的结构特点和水泥基材料的流动性，发挥梯度热导率的热诱导作用，既能在满足路面基本使用要求的前提下，减少夏季经路面吸收并传递至路基的太阳辐射热量，又能加速冬季路基内部的热量向外界环境释放，赋予路面在冷季疏导冷量的能力，解决高原冻土区宽幅路面吸热强和散热慢的问题，缓解路面结构对冻土的热扰动，提高冻土稳定性。
Pouring type gradient heat conduction pavement structure based on large-gap asphalt mixture framework
The invention discloses a pouring type gradient heat conduction pavement structure based on a large-gap asphalt mixture framework, which is characterized in that a large-gap asphalt mixture of a pavement is used as the framework, cement-based materials with different heat conductivities are used as fillers of framework gaps, and the framework is poured with the cement-based materials with the heat conductivities sequentially reduced from top to bottom in a layered manner; and the heat in the pavement tends to be transferred to the external environment from bottom to top under the driving of the gradient heat conductivity. The structure utilizes the structural characteristics of a large-gap asphalt mixture framework and the fluidity of a cement-based material, and exerts the thermal induction effect of gradient thermal conductivity, so that on the premise of meeting the basic use requirements of the pavement, the solar radiation heat absorbed by the pavement and transferred to the roadbed in summer can be reduced; heat in the roadbed in winter can be accelerated to be released to the external environment, the pavement is endowed with the capability of dredging cold energy in cold seasons, the problems of strong heat absorption and slow heat dissipation of a wide pavement in a plateau frozen soil region are solved, thermal disturbance of a pavement structure to frozen soil is relieved, and the stability of the frozen soil is improved.
本发明公开了一种基于大空隙沥青混合料骨架的灌注式梯度导热路面结构，通过以路面的大空隙沥青混合料作为骨架，以不同热导率的水泥基材料作为骨架空隙的填充物，对骨架分层灌注自上而下热导率依次减小的水泥基材料，使得路面内的热量在梯度热导率的驱动下趋向于从下至上传递至外界环境中。该结构利用了大空隙沥青混合料骨架的结构特点和水泥基材料的流动性，发挥梯度热导率的热诱导作用，既能在满足路面基本使用要求的前提下，减少夏季经路面吸收并传递至路基的太阳辐射热量，又能加速冬季路基内部的热量向外界环境释放，赋予路面在冷季疏导冷量的能力，解决高原冻土区宽幅路面吸热强和散热慢的问题，缓解路面结构对冻土的热扰动，提高冻土稳定性。
Pouring type gradient heat conduction pavement structure based on large-gap asphalt mixture framework
一种基于大空隙沥青混合料骨架的灌注式梯度导热路面结构
WEI TANGZHONG (author) / CAI GUANGNAN (author) / LI PEINING (author) / XIA XINJIE (author) / LU WANHUA (author) / DU XINJIAN (author)
2022-02-25
Patent
Electronic Resource
Chinese
IPC:
E01C
Bau von Straßen, Sportplätzen oder dgl., Decken dafür
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CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE
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