A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Mix proportion design method of recycled asphalt concrete doped with steel slag
The invention discloses a mix proportion design method of recycled asphalt concrete doped with steel slag. The characteristics that the steel slag is high in water absorption rate and RAP is difficult to disperse are fully considered, asphalt with the same mixing proportion design is adopted as a relative substance, and the apparent relative density of the steel slag is measured; according to the method, the modified gradation of the RAP is determined, and the asphalt existing in the RAP is used as a part of the asphalt-aggregate ratio to participate in the calculation of the maximum theoretical density, so that a test method for two key parameters of mineral aggregate gradation and the maximum theoretical relative density can be accurately provided, the volume index of the asphalt concrete is accurately calculated, and the optimal asphalt-aggregate ratio is determined; the design result of the mix proportion is closer to the actual situation of engineering, and a certain technical reference can be provided for the regeneration technology of high-water-absorption solid waste and asphalt.
本发明公开了一种掺钢渣再生沥青混凝土的配合比设计方法。本发明充分考虑钢渣吸水率高、RAP难以分散的特性，采用与配合比设计相同的沥青作为相对物，测定钢渣的表观相对密度；确定RAP的修正级配，并将RAP中存在的沥青作为油石比的一部分参与最大理论密度的计算，可以较为准确的提供矿料级配和最大理论相对密度两个关键参数的试验方法，从而准确计算沥青混凝土的体积指标，确定最佳油石比，使配合比设计结果更加贴近工程实际情况，可为高吸水率固体废弃物及沥青再生技术提供一定的技术参考。
Mix proportion design method of recycled asphalt concrete doped with steel slag
The invention discloses a mix proportion design method of recycled asphalt concrete doped with steel slag. The characteristics that the steel slag is high in water absorption rate and RAP is difficult to disperse are fully considered, asphalt with the same mixing proportion design is adopted as a relative substance, and the apparent relative density of the steel slag is measured; according to the method, the modified gradation of the RAP is determined, and the asphalt existing in the RAP is used as a part of the asphalt-aggregate ratio to participate in the calculation of the maximum theoretical density, so that a test method for two key parameters of mineral aggregate gradation and the maximum theoretical relative density can be accurately provided, the volume index of the asphalt concrete is accurately calculated, and the optimal asphalt-aggregate ratio is determined; the design result of the mix proportion is closer to the actual situation of engineering, and a certain technical reference can be provided for the regeneration technology of high-water-absorption solid waste and asphalt.
本发明公开了一种掺钢渣再生沥青混凝土的配合比设计方法。本发明充分考虑钢渣吸水率高、RAP难以分散的特性，采用与配合比设计相同的沥青作为相对物，测定钢渣的表观相对密度；确定RAP的修正级配，并将RAP中存在的沥青作为油石比的一部分参与最大理论密度的计算，可以较为准确的提供矿料级配和最大理论相对密度两个关键参数的试验方法，从而准确计算沥青混凝土的体积指标，确定最佳油石比，使配合比设计结果更加贴近工程实际情况，可为高吸水率固体废弃物及沥青再生技术提供一定的技术参考。
Mix proportion design method of recycled asphalt concrete doped with steel slag
一种掺钢渣再生沥青混凝土的配合比设计方法
SHEN FAN (author) / XIANG TIANXIANG (author) / ZHONG YADAN (author) / HUANG SHAOLONG (author) / FANG SIFA (author) / GUO PENG (author) / LU JI (author)
2024-04-12
Patent
Electronic Resource
Chinese
IPC:
G16C
Steel slag asphalt concrete mix proportion design method
| European Patent Office | 2022
Asphalt concrete mixture containing steel slag and recycled aggregate
| European Patent Office | 2021
Mix proportion design method of recycled asphalt mixture
| European Patent Office | 2024
Novel steel slag pervious concrete mix proportion design method
| European Patent Office | 2020