Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Lightweight ultra-high performance concrete and preparation method thereof
The invention provides lightweight ultra-high performance concrete and a preparation method thereof, and belongs to the technical field of concrete. The lightweight ultra-high performance concrete provided by the invention is prepared from the following components in parts by weight: 600 to 700 parts of cement, 195 to 225 parts of superfine fly ash, 150 to 170 parts of silica fume, 700 to 800 parts of lightweight internal curing sand, 150 to 175 parts of steel fiber, 190 to 210 parts of water and 17 to 22 parts of a water reducing agent. By selecting the raw materials and adjusting the ratio of the raw materials, the compressive strength of the prepared lightweight ultra-high performance concrete is higher than 120 MPa, and the strength requirement of the ultra-high performance concrete can be met; and the apparent density is less than 2000kg/m < 3 >, and is reduced by 20% or more compared with the apparent density of common ultra-high performance concrete.
本发明提供了一种轻质超高性能混凝土及其制备方法，属于混凝土技术领域。本发明提供的轻质超高性能混凝土，按重量份数计，包括以下组分：水泥600‑700份、超细粉煤灰195‑225份、硅灰150‑170份、轻质内养护砂700‑800份、钢纤维150‑175份、水190‑210份、减水剂17‑22份。本发明通过原料的选择以及原料配比的调整，使制备的轻质超高性能混凝土的抗压强度高于120MPa，能够满足超高性能混凝土的强度要求；表观密度小于2000kg/m3，比普通超高性能混凝土的表观密度降低20％以上。
Lightweight ultra-high performance concrete and preparation method thereof
The invention provides lightweight ultra-high performance concrete and a preparation method thereof, and belongs to the technical field of concrete. The lightweight ultra-high performance concrete provided by the invention is prepared from the following components in parts by weight: 600 to 700 parts of cement, 195 to 225 parts of superfine fly ash, 150 to 170 parts of silica fume, 700 to 800 parts of lightweight internal curing sand, 150 to 175 parts of steel fiber, 190 to 210 parts of water and 17 to 22 parts of a water reducing agent. By selecting the raw materials and adjusting the ratio of the raw materials, the compressive strength of the prepared lightweight ultra-high performance concrete is higher than 120 MPa, and the strength requirement of the ultra-high performance concrete can be met; and the apparent density is less than 2000kg/m < 3 >, and is reduced by 20% or more compared with the apparent density of common ultra-high performance concrete.
本发明提供了一种轻质超高性能混凝土及其制备方法，属于混凝土技术领域。本发明提供的轻质超高性能混凝土，按重量份数计，包括以下组分：水泥600‑700份、超细粉煤灰195‑225份、硅灰150‑170份、轻质内养护砂700‑800份、钢纤维150‑175份、水190‑210份、减水剂17‑22份。本发明通过原料的选择以及原料配比的调整，使制备的轻质超高性能混凝土的抗压强度高于120MPa，能够满足超高性能混凝土的强度要求；表观密度小于2000kg/m3，比普通超高性能混凝土的表观密度降低20％以上。
Lightweight ultra-high performance concrete and preparation method thereof
一种轻质超高性能混凝土及其制备方法
GAO SHAN (Autor:in) / CHU HONGYAN (Autor:in) / ZHANG WENHUA (Autor:in)
30.01.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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