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A platform for research: civil engineering, architecture and urbanism
Casting type epoxy rubber powder composite modified asphalt mixture design method and construction method
The invention provides a casting type epoxy rubber powder composite modified asphalt mixture design method and construction method, and the method comprises the following steps: primarily selecting the mixing amounts of epoxy resin, asphalt, rubber powder, an epoxy resin main agent and a curing agent, and carrying out epoxy rubber composite modified asphalt composition optimization design; carrying out elasticity modulus verification on the formed optimization design, primarily selecting different gradation, and selecting an asphalt-aggregate ratio; judging whether the requirements are met or not, taking the grade with the minimum penetration degree as the primary grade and the estimated asphalt-aggregate ratio as the median value to select multiple different asphalt dosages for testing according to set changes; based on the optimization basis, determining the optimal asphalt dosage; and performing low-temperature bending and composite beam fatigue test to judge whether the requirements are met or not. The invention mainly solves the technical problems that the rigidity of a steel bridge deck pavement material is not coordinated with the overall rigidity of a steel bridge deck slab, and the design and construction process of a pouring type epoxy rubber powder composite modified asphalt mixture are poor.
本发明提供了一种浇注式环氧橡胶粉复合改性沥青混合料设计方法及施工方法，包括：对环氧树脂、沥青、橡胶粉以及环氧树脂主剂与固化剂掺量进行初选，进行环氧橡胶复合改性沥青组成优化设计；对形成的优化设计进行弹性模量验证，初选不同级配，选择油石比；判断是否满足要求，以贯入度最小级配作为初选级配，以预估油石比为中值，按照设定的变化，选取多种不同沥青用量进行试验；基于优选依据，确定最佳沥青用量；进行低温弯曲以及复合梁疲劳试验，判断是否满足要求。本发明主要解决了钢桥面铺装材料刚度和钢桥面板整体刚度不协调、浇注式环氧橡胶粉复合改性沥青混合料设计以及施工工艺的技术问题。
Casting type epoxy rubber powder composite modified asphalt mixture design method and construction method
The invention provides a casting type epoxy rubber powder composite modified asphalt mixture design method and construction method, and the method comprises the following steps: primarily selecting the mixing amounts of epoxy resin, asphalt, rubber powder, an epoxy resin main agent and a curing agent, and carrying out epoxy rubber composite modified asphalt composition optimization design; carrying out elasticity modulus verification on the formed optimization design, primarily selecting different gradation, and selecting an asphalt-aggregate ratio; judging whether the requirements are met or not, taking the grade with the minimum penetration degree as the primary grade and the estimated asphalt-aggregate ratio as the median value to select multiple different asphalt dosages for testing according to set changes; based on the optimization basis, determining the optimal asphalt dosage; and performing low-temperature bending and composite beam fatigue test to judge whether the requirements are met or not. The invention mainly solves the technical problems that the rigidity of a steel bridge deck pavement material is not coordinated with the overall rigidity of a steel bridge deck slab, and the design and construction process of a pouring type epoxy rubber powder composite modified asphalt mixture are poor.
本发明提供了一种浇注式环氧橡胶粉复合改性沥青混合料设计方法及施工方法，包括：对环氧树脂、沥青、橡胶粉以及环氧树脂主剂与固化剂掺量进行初选，进行环氧橡胶复合改性沥青组成优化设计；对形成的优化设计进行弹性模量验证，初选不同级配，选择油石比；判断是否满足要求，以贯入度最小级配作为初选级配，以预估油石比为中值，按照设定的变化，选取多种不同沥青用量进行试验；基于优选依据，确定最佳沥青用量；进行低温弯曲以及复合梁疲劳试验，判断是否满足要求。本发明主要解决了钢桥面铺装材料刚度和钢桥面板整体刚度不协调、浇注式环氧橡胶粉复合改性沥青混合料设计以及施工工艺的技术问题。
Casting type epoxy rubber powder composite modified asphalt mixture design method and construction method
浇注式环氧橡胶粉复合改性沥青混合料设计及施工方法
XIA XIANMING (author) / DING AIMIN (author) / GU JUNHUA (author) / JIANG CHUANHUA (author) / LYU YIWEI (author)
2021-08-06
Patent
Electronic Resource
Chinese
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