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A platform for research: civil engineering, architecture and urbanism
Quick-hardening ultra-high performance concrete and preparation method thereof
The invention discloses quick-hardening ultra-high performance concrete and a preparation method thereof. The quick-hardening ultra-high performance concrete is prepared from cement, a quick-hardeningagent, a retarder, a mineral admixture, sand, an additive, steel fibers and water. 1 cubic meter of the quick-hardening ultra-high performance concrete comprises the following components: 300-600 kgof cement, 10-200 kg of the rapid hardening agent, 0-10 kg of the retarder, 0-200 kg of the mineral admixture, 500 to 1500 kg of sand, 0-20 kg of an additive and 0-200 kg of steel fibers, wherein thewater-binder ratio is 0.14 to 0.28. The quick-hardening ultra-high performance concrete overcomes the defects that in the prior art, the setting time of a quick-hardening material is not easy to control, quality fluctuation is severe, cracks are obvious, the service life is short, and durability is poor. The concrete is stable and controllable in setting time, small in shrinkage, not prone to generating cracks and good in durability, rapid high-performance maintenance and reinforcement of municipal engineering can be achieved, and the preparation method is high in quality stability, efficientin field construction, easy to operate and suitable for large-scale application and popularization.
本发明公开了一种快硬型超高性能混凝土及其制备方法，包括：水泥、快硬剂、缓凝剂、矿物掺合料、砂、外加剂、钢纤维、水；每立方米快硬型超高性能混凝土中各组分用量为：水泥300‑600千克；快硬剂10‑200千克；缓凝剂0‑10千克；矿物掺合料0‑200千克；砂500‑1500千克；外加剂0‑20千克；钢纤维0‑200千克；水胶比为0.14‑0.28。本发明公开的快硬型超高性能混凝土及其制备方法，克服了现有技术中快硬材料凝结时间不易调控、质量波动剧烈、裂缝明显、服役寿命短及耐久性差等缺陷，本发明的快硬型超高性能混凝土凝结时间稳定可控、收缩小、不易产生裂缝、耐久性好，能够实现市政工程的快速高性能维养与加固，所公开的制备方法，质量稳定性高、现场施工高效、易操作，适合规模化推广使用。
Quick-hardening ultra-high performance concrete and preparation method thereof
The invention discloses quick-hardening ultra-high performance concrete and a preparation method thereof. The quick-hardening ultra-high performance concrete is prepared from cement, a quick-hardeningagent, a retarder, a mineral admixture, sand, an additive, steel fibers and water. 1 cubic meter of the quick-hardening ultra-high performance concrete comprises the following components: 300-600 kgof cement, 10-200 kg of the rapid hardening agent, 0-10 kg of the retarder, 0-200 kg of the mineral admixture, 500 to 1500 kg of sand, 0-20 kg of an additive and 0-200 kg of steel fibers, wherein thewater-binder ratio is 0.14 to 0.28. The quick-hardening ultra-high performance concrete overcomes the defects that in the prior art, the setting time of a quick-hardening material is not easy to control, quality fluctuation is severe, cracks are obvious, the service life is short, and durability is poor. The concrete is stable and controllable in setting time, small in shrinkage, not prone to generating cracks and good in durability, rapid high-performance maintenance and reinforcement of municipal engineering can be achieved, and the preparation method is high in quality stability, efficientin field construction, easy to operate and suitable for large-scale application and popularization.
本发明公开了一种快硬型超高性能混凝土及其制备方法，包括：水泥、快硬剂、缓凝剂、矿物掺合料、砂、外加剂、钢纤维、水；每立方米快硬型超高性能混凝土中各组分用量为：水泥300‑600千克；快硬剂10‑200千克；缓凝剂0‑10千克；矿物掺合料0‑200千克；砂500‑1500千克；外加剂0‑20千克；钢纤维0‑200千克；水胶比为0.14‑0.28。本发明公开的快硬型超高性能混凝土及其制备方法，克服了现有技术中快硬材料凝结时间不易调控、质量波动剧烈、裂缝明显、服役寿命短及耐久性差等缺陷，本发明的快硬型超高性能混凝土凝结时间稳定可控、收缩小、不易产生裂缝、耐久性好，能够实现市政工程的快速高性能维养与加固，所公开的制备方法，质量稳定性高、现场施工高效、易操作，适合规模化推广使用。
Quick-hardening ultra-high performance concrete and preparation method thereof
一种快硬型超高性能混凝土及其制备方法
ZOU QI (author) / ZHOU YUAN (author) / WANG XIONG (author) / QIN LIAN (author) / XU YALING (author) / LI HUANHUAN (author) / LIU JIAYING (author) / HUANG LAN (author) / XIN JIANGANG (author) / ZHANG YUEMING (author)
2020-06-05
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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