Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Prefabricated part concrete containing iron tailings and preparation method of prefabricated part concrete
The invention relates to the technical field of building materials, and particularly discloses iron-tailing-containing prefabricated part concrete and a preparation method thereof.The iron-tailing-containing prefabricated part concrete is prepared from cement, iron tailing sand, iron tailing powder, fly ash, silica fume, a water reducing agent, a defoaming agent and water; the iron tailing powder is subjected to chemical-microwave irradiation pretreatment. The highest 3d compressive strength and the highest breaking strength of the obtained prefabricated part concrete are 92.0 MPa and 18.9 MPa respectively; according to the present invention, the prepared prefabricated part concrete has the highest 28d compressive strength of 113.7 MPa and the highest 28d compressive strength of 20.0 MPa, the slump of the obtained prefabricated part concrete is more than 770 mm, the minimum gas content is 0.4%, the comprehensive performance is high, the erosion resistance of the prefabricated part concrete is improved, and the service life is effectively prolonged. Therefore, the iron tailings are recycled in the concrete, and the prefabricated part concrete with relatively high comprehensive performance is obtained.
本申请涉及建筑材料技术领域，具体公开了一种含铁尾矿的预制构件混凝土及其制备方法，一种含铁尾矿的预制构件混凝土，包括如下原料：水泥、铁尾矿砂、铁尾矿粉、粉煤灰、硅灰、减水剂、消泡剂和水；铁尾矿粉经过化学‑微波辐照预处理。本申请得到的预制构件混凝土3d抗压强度和抗折强度最高分别为92.0MPa和18.9MPa；28d抗压强度和抗折强度最高分别为113.7MPa和20.0MPa，且得到的预制构件混凝土的坍落度均在770mm以上，含气量最低为0.4%，具有较高的综合性能，提高了预制构件混凝土的抗侵蚀能力，有效提高使用寿命。可见本申请在混凝土中资源化利用了铁尾矿，并得到了综合性能较强的预制构件混凝土。
Prefabricated part concrete containing iron tailings and preparation method of prefabricated part concrete
The invention relates to the technical field of building materials, and particularly discloses iron-tailing-containing prefabricated part concrete and a preparation method thereof.The iron-tailing-containing prefabricated part concrete is prepared from cement, iron tailing sand, iron tailing powder, fly ash, silica fume, a water reducing agent, a defoaming agent and water; the iron tailing powder is subjected to chemical-microwave irradiation pretreatment. The highest 3d compressive strength and the highest breaking strength of the obtained prefabricated part concrete are 92.0 MPa and 18.9 MPa respectively; according to the present invention, the prepared prefabricated part concrete has the highest 28d compressive strength of 113.7 MPa and the highest 28d compressive strength of 20.0 MPa, the slump of the obtained prefabricated part concrete is more than 770 mm, the minimum gas content is 0.4%, the comprehensive performance is high, the erosion resistance of the prefabricated part concrete is improved, and the service life is effectively prolonged. Therefore, the iron tailings are recycled in the concrete, and the prefabricated part concrete with relatively high comprehensive performance is obtained.
本申请涉及建筑材料技术领域，具体公开了一种含铁尾矿的预制构件混凝土及其制备方法，一种含铁尾矿的预制构件混凝土，包括如下原料：水泥、铁尾矿砂、铁尾矿粉、粉煤灰、硅灰、减水剂、消泡剂和水；铁尾矿粉经过化学‑微波辐照预处理。本申请得到的预制构件混凝土3d抗压强度和抗折强度最高分别为92.0MPa和18.9MPa；28d抗压强度和抗折强度最高分别为113.7MPa和20.0MPa，且得到的预制构件混凝土的坍落度均在770mm以上，含气量最低为0.4%，具有较高的综合性能，提高了预制构件混凝土的抗侵蚀能力，有效提高使用寿命。可见本申请在混凝土中资源化利用了铁尾矿，并得到了综合性能较强的预制构件混凝土。
Prefabricated part concrete containing iron tailings and preparation method of prefabricated part concrete
一种含铁尾矿的预制构件混凝土及其制备方法
LI LIYONG (Autor:in) / FAN YAPING (Autor:in) / LI YIDA (Autor:in) / ZHANG WENBO (Autor:in) / ZUO CHAO (Autor:in) / DONG LINHAO (Autor:in)
22.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Prefabricated part connecting assembly and concrete prefabricated part
| Europäisches Patentamt | 2020
| Europäisches Patentamt | 2020