A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Low-shrinkage steam-curing-free self-compacting C140UHPC and preparation method thereof
The invention discloses low-shrinkage steam-curing-free self-compacting C140UHPC and a preparation method thereof, and belongs to the technical field of building materials. The low-shrinkage steam-curing-free self-compacting C140UHPC is prepared from the following raw materials: cement, fly ash, silica fume, an active admixture, quartz powder, quartz sand, fibers, water and a superplasticizer. Theactive admixture is used for replacing part of cement, the use amount of the cementing material in the concrete is reduced and self shrinkage and dry shrinkage of the concrete can be reduced. The active admixtures with different particle sizes can be used for replacing aggregates and optimizing the aggregate gradation so that the shrinkage of the concrete is reduced, the consumption of cement isreduced and the environmental pollution can be reduced. The renewable resources such as glass powder, ceramic powder and rubber powder can be used for replacing non-renewable resources such as quartzsand so that the resources are saved. The preparation process is simple and the high-performance concrete which is environment-friendly, good in working performance, good in mechanical property, low in shrinkage and the like can be prepared.
本发明公开了一种低收缩免蒸养自密实的C140UHPC及其制备方法，属于建筑材料技术领域，它以水泥、粉煤灰、硅灰、活性掺合料、石英粉、石英砂、纤维、水、高效减水剂为原材料制备而成。本发明利用活性掺合料替代部分水泥，降低混凝土中胶凝材料的用量，从而降低混凝土的自收缩和干燥收缩，还可以用不同粒径的活性掺合料替换骨料，优化骨料级配，从而减少混凝土的收缩，并且减少水泥用量可以减少环境污染，用可再生资源如玻璃粉、陶瓷粉、橡胶粉等替代不可再生资源石英砂，节约资源。本发明制备工艺简单，可制备出兼并环保、良好工作性能，力学性能和低收缩等各方面性能优良的高性能混凝土。
Low-shrinkage steam-curing-free self-compacting C140UHPC and preparation method thereof
The invention discloses low-shrinkage steam-curing-free self-compacting C140UHPC and a preparation method thereof, and belongs to the technical field of building materials. The low-shrinkage steam-curing-free self-compacting C140UHPC is prepared from the following raw materials: cement, fly ash, silica fume, an active admixture, quartz powder, quartz sand, fibers, water and a superplasticizer. Theactive admixture is used for replacing part of cement, the use amount of the cementing material in the concrete is reduced and self shrinkage and dry shrinkage of the concrete can be reduced. The active admixtures with different particle sizes can be used for replacing aggregates and optimizing the aggregate gradation so that the shrinkage of the concrete is reduced, the consumption of cement isreduced and the environmental pollution can be reduced. The renewable resources such as glass powder, ceramic powder and rubber powder can be used for replacing non-renewable resources such as quartzsand so that the resources are saved. The preparation process is simple and the high-performance concrete which is environment-friendly, good in working performance, good in mechanical property, low in shrinkage and the like can be prepared.
本发明公开了一种低收缩免蒸养自密实的C140UHPC及其制备方法，属于建筑材料技术领域，它以水泥、粉煤灰、硅灰、活性掺合料、石英粉、石英砂、纤维、水、高效减水剂为原材料制备而成。本发明利用活性掺合料替代部分水泥，降低混凝土中胶凝材料的用量，从而降低混凝土的自收缩和干燥收缩，还可以用不同粒径的活性掺合料替换骨料，优化骨料级配，从而减少混凝土的收缩，并且减少水泥用量可以减少环境污染，用可再生资源如玻璃粉、陶瓷粉、橡胶粉等替代不可再生资源石英砂，节约资源。本发明制备工艺简单，可制备出兼并环保、良好工作性能，力学性能和低收缩等各方面性能优良的高性能混凝土。
Low-shrinkage steam-curing-free self-compacting C140UHPC and preparation method thereof
一种低收缩免蒸养自密实的C140UHPC及其制备方法
LUO BAIFU (author) / LIU YANG (author) / LIAO SHIQI (author) / FENG QINQIN (author) / LI CHENG (author)
2020-04-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
B28C
Tonaufbereitung
,
PREPARING CLAY
Steam-curing-free super-early-strength C120 self-compacting concrete and preparation method thereof
| European Patent Office | 2024
Shrinkage-compensating self-compacting concrete and preparation method thereof
| European Patent Office | 2022
Formula and preparation method of steam-curing-free self-compacting concrete for prefabricated parts
| European Patent Office | 2022
Low-shrinkage high-strength self-compacting concrete and preparation method thereof
| European Patent Office | 2023
Low-shrinkage self-compacting micro-expansion concrete and preparation method thereof
| European Patent Office | 2023