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A platform for research: civil engineering, architecture and urbanism
Double-strength control method for cold-recycled base material
The invention relates to the technical field of recycling of cold-recycled materials, in particular to a cold-recycled base material double-strength control method, which comprises the following steps of: calculating a representative value of maximum tensile stress at the bottom of a cold-recycled base by taking a structural layer and thickness of a pavement structure, and calculating the double-strength of the cold-recycled base material by utilizing the representative value of the maximum tensile stress at the bottom of the cold-recycled base. Calculating the minimum flexural-tensile strength of the cold recycled material after standard curing for 90 days, and obtaining a conversion relation between the flexural-tensile strength of the cold recycled material after standard curing for 90 days and the flexural-tensile strength of the cold recycled material under different curing conditions; and then the minimum flexural-tensile strength of the cold-recycled material under different curing conditions is obtained, and the compressive strength standard value of the cold-recycled material is combined, so that the double strength of the cold-recycled base material is controlled, the cold-recycled material and the structural design are integrated, reference is provided for later construction, and the durability of a later cold-recycled layer is ensured. The problems that material and structure design of the embankment crest road are disjointed, so that later design and construction are disjointed, and the durability of a cold regeneration base layer is insufficient are solved.
本发明涉及冷再生材料再生利用技术领域，尤其是冷再生基层材料双强度控制方法，该方法通过取路面结构的结构层与厚度，计算冷再生基层层底最大拉应力代表值，利用冷再生基层层底最大拉应力代表值，计算标准养生90d的冷再生材料最小弯拉强度，获取标准养生90d的冷再生材料的弯拉强度与不同养生条件下的冷再生材料的弯拉强度之间的换算关系，进而获取不同养生条件下的冷再生材料的最小弯拉强度并结合冷再生材料抗压强度标准值，实现对冷再生基层材料双强度进行控制，使冷再生材料和结构设计的一体化，为后期施工提供参考，保证后期冷再生层的耐久性。解决堤顶道路由于材料与结构设计脱节，导致后期设计与施工脱节，冷再生基层耐久性不足的问题。
Double-strength control method for cold-recycled base material
The invention relates to the technical field of recycling of cold-recycled materials, in particular to a cold-recycled base material double-strength control method, which comprises the following steps of: calculating a representative value of maximum tensile stress at the bottom of a cold-recycled base by taking a structural layer and thickness of a pavement structure, and calculating the double-strength of the cold-recycled base material by utilizing the representative value of the maximum tensile stress at the bottom of the cold-recycled base. Calculating the minimum flexural-tensile strength of the cold recycled material after standard curing for 90 days, and obtaining a conversion relation between the flexural-tensile strength of the cold recycled material after standard curing for 90 days and the flexural-tensile strength of the cold recycled material under different curing conditions; and then the minimum flexural-tensile strength of the cold-recycled material under different curing conditions is obtained, and the compressive strength standard value of the cold-recycled material is combined, so that the double strength of the cold-recycled base material is controlled, the cold-recycled material and the structural design are integrated, reference is provided for later construction, and the durability of a later cold-recycled layer is ensured. The problems that material and structure design of the embankment crest road are disjointed, so that later design and construction are disjointed, and the durability of a cold regeneration base layer is insufficient are solved.
本发明涉及冷再生材料再生利用技术领域，尤其是冷再生基层材料双强度控制方法，该方法通过取路面结构的结构层与厚度，计算冷再生基层层底最大拉应力代表值，利用冷再生基层层底最大拉应力代表值，计算标准养生90d的冷再生材料最小弯拉强度，获取标准养生90d的冷再生材料的弯拉强度与不同养生条件下的冷再生材料的弯拉强度之间的换算关系，进而获取不同养生条件下的冷再生材料的最小弯拉强度并结合冷再生材料抗压强度标准值，实现对冷再生基层材料双强度进行控制，使冷再生材料和结构设计的一体化，为后期施工提供参考，保证后期冷再生层的耐久性。解决堤顶道路由于材料与结构设计脱节，导致后期设计与施工脱节，冷再生基层耐久性不足的问题。
Double-strength control method for cold-recycled base material
一种冷再生基层材料双强度控制方法
PENG BO (author) / SU YOUPENG (author) / LIU WEI (author) / LYU XUEYING (author) / TIAN JIABIN (author) / YANG HAODI (author) / WANG KE (author) / WANG JIANDONG (author) / SHANG WENYONG (author) / GOU GUOTAO (author)
2024-03-26
Patent
Electronic Resource
Chinese
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