A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Preparation process of super-retarded cement stabilized macadam
The invention relates to the technical field of building materials, and discloses a preparation process of super-retarded cement stabilized macadam, which comprises the following steps: selection and surface treatment of raw materials: selecting super-retarded cement, graded macadam, fly ash or mineral powder, a retarder and water, and carrying out nanoscale surface treatment on the macadam to improve the binding power of the macadam and cement paste, so as to obtain the super-retarded cement stabilized macadam; the ratio of the raw materials is as follows: the super-retarding cement accounts for 4%-6% of the total weight of the mixed material, and 0.1%-0.3% of a retarder is doped; the particle size range of the graded broken stone is 5-31.5 mm, and the graded broken stone accounts for 55-65% of the total weight of the mixed material; and the fly ash or mineral powder accounts for 8-12% of the total weight of the mixed material. By adopting the super-retarding cement, three-dimensional dynamic stirring and vacuum degassing processes, the problem of unstable structure caused by non-uniform stirring and bubble residue in the construction process of the traditional cement stabilized macadam material is effectively solved. The three-dimensional dynamic stirring device can be used for mixing in multiple directions, so that materials such as cement, macadam and fly ash are more uniformly distributed.
本申请涉及建筑材料技术领域，公开了一种超缓凝水泥稳定碎石制备工艺，包括以下步骤：原材料的选择与表面处理：选用超缓凝水泥、级配碎石、粉煤灰或矿粉、缓凝剂和水，并对碎石进行纳米级表面处理，以提高其与水泥浆体的粘结力，所述原材料的配比为：超缓凝水泥占混合材料总重量的4%‑6%，掺入0.1%‑0.3%的缓凝剂；级配碎石粒径范围为5‑31.5mm，占混合材料总重量的55%‑65%；粉煤灰或矿粉占混合材料总重量的8%‑12%。通过采用超缓凝水泥、三维动态搅拌和真空脱气工艺，有效解决了传统水泥稳定碎石材料在施工过程中因搅拌不均、气泡残留而导致的结构不稳定问题。三维动态搅拌装置能够在多个方向上进行混合，使得水泥、碎石、粉煤灰等材料更加均匀分布。
Preparation process of super-retarded cement stabilized macadam
The invention relates to the technical field of building materials, and discloses a preparation process of super-retarded cement stabilized macadam, which comprises the following steps: selection and surface treatment of raw materials: selecting super-retarded cement, graded macadam, fly ash or mineral powder, a retarder and water, and carrying out nanoscale surface treatment on the macadam to improve the binding power of the macadam and cement paste, so as to obtain the super-retarded cement stabilized macadam; the ratio of the raw materials is as follows: the super-retarding cement accounts for 4%-6% of the total weight of the mixed material, and 0.1%-0.3% of a retarder is doped; the particle size range of the graded broken stone is 5-31.5 mm, and the graded broken stone accounts for 55-65% of the total weight of the mixed material; and the fly ash or mineral powder accounts for 8-12% of the total weight of the mixed material. By adopting the super-retarding cement, three-dimensional dynamic stirring and vacuum degassing processes, the problem of unstable structure caused by non-uniform stirring and bubble residue in the construction process of the traditional cement stabilized macadam material is effectively solved. The three-dimensional dynamic stirring device can be used for mixing in multiple directions, so that materials such as cement, macadam and fly ash are more uniformly distributed.
本申请涉及建筑材料技术领域，公开了一种超缓凝水泥稳定碎石制备工艺，包括以下步骤：原材料的选择与表面处理：选用超缓凝水泥、级配碎石、粉煤灰或矿粉、缓凝剂和水，并对碎石进行纳米级表面处理，以提高其与水泥浆体的粘结力，所述原材料的配比为：超缓凝水泥占混合材料总重量的4%‑6%，掺入0.1%‑0.3%的缓凝剂；级配碎石粒径范围为5‑31.5mm，占混合材料总重量的55%‑65%；粉煤灰或矿粉占混合材料总重量的8%‑12%。通过采用超缓凝水泥、三维动态搅拌和真空脱气工艺，有效解决了传统水泥稳定碎石材料在施工过程中因搅拌不均、气泡残留而导致的结构不稳定问题。三维动态搅拌装置能够在多个方向上进行混合，使得水泥、碎石、粉煤灰等材料更加均匀分布。
Preparation process of super-retarded cement stabilized macadam
一种超缓凝水泥稳定碎石制备工艺
FENG HUAXIN (author) / SUN JIANQUAN (author) / FENG XUE (author) / CUI JIEXING (author) / WANG JIAYU (author) / ZHANG BIAO (author) / HAN GUOLIANG (author) / SHI ANDU (author) / WANG JIAN (author) / LI HU (author)
2024-12-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2024
| European Patent Office | 2022
Cement stabilized macadam mixture and preparation process thereof
| European Patent Office | 2021