Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Recycled concrete as well as preparation method and application thereof
The invention discloses recycled concrete as well as a preparation method and application thereof, and belongs to the technical field of solid resource regeneration. The recycled concrete provided by the invention is prepared from the following raw materials in parts by mass: 100 parts of cement; 200 to 300 parts of river sand; 250 to 400 parts of recycled coarse aggregate; 0.2 to 0.4 part of wood fiber; 1-3 parts of steel fiber; 15-25 parts of modified fly ash; 1-2 parts of a water reducing agent; 45 to 60 parts of water; the modified fly ash contains hydroxyl and heavy metal complexing groups. According to the recycled concrete provided by the invention, the compressive strength, the splitting resistance, the tensile strength, the freeze-thaw resistance and the dry-wet cycle resistance of the obtained recycled concrete can be effectively improved. The invention also provides a preparation method and application of the recycled concrete.
本发明公开了一种再生混凝土及其制备方法和应用，属于固体资源再生技术领域。按质量份数计，本发明提供的再生混凝土的制备原料包括：水泥100份；河砂200～300份；再生粗骨料250～400份；木质纤维0.2～0.4份；钢纤维1～3份；改性粉煤灰15～25份；减水剂1～2份；水45～60份；所述改性粉煤灰中包含羟基和重金属络合基团。本发明提供的再生混凝土，能够有效提高所得再生混凝土的抗压强度、抗劈裂性能、抗拉强度、抗冻融性能以及抗干湿循环性能。本发明还提供了上述再生混凝土的制备方法和应用。
Recycled concrete as well as preparation method and application thereof
The invention discloses recycled concrete as well as a preparation method and application thereof, and belongs to the technical field of solid resource regeneration. The recycled concrete provided by the invention is prepared from the following raw materials in parts by mass: 100 parts of cement; 200 to 300 parts of river sand; 250 to 400 parts of recycled coarse aggregate; 0.2 to 0.4 part of wood fiber; 1-3 parts of steel fiber; 15-25 parts of modified fly ash; 1-2 parts of a water reducing agent; 45 to 60 parts of water; the modified fly ash contains hydroxyl and heavy metal complexing groups. According to the recycled concrete provided by the invention, the compressive strength, the splitting resistance, the tensile strength, the freeze-thaw resistance and the dry-wet cycle resistance of the obtained recycled concrete can be effectively improved. The invention also provides a preparation method and application of the recycled concrete.
本发明公开了一种再生混凝土及其制备方法和应用，属于固体资源再生技术领域。按质量份数计，本发明提供的再生混凝土的制备原料包括：水泥100份；河砂200～300份；再生粗骨料250～400份；木质纤维0.2～0.4份；钢纤维1～3份；改性粉煤灰15～25份；减水剂1～2份；水45～60份；所述改性粉煤灰中包含羟基和重金属络合基团。本发明提供的再生混凝土，能够有效提高所得再生混凝土的抗压强度、抗劈裂性能、抗拉强度、抗冻融性能以及抗干湿循环性能。本发明还提供了上述再生混凝土的制备方法和应用。
Recycled concrete as well as preparation method and application thereof
一种再生混凝土及其制备方法和应用
ZHANG YI (Autor:in) / WANG JUN (Autor:in) / JIANG ZHEN (Autor:in) / LIU YANG (Autor:in) / HE YANQI (Autor:in) / ZHOU CHENLIN (Autor:in) / LI MENGQIANG (Autor:in) / DENG YIFAN (Autor:in) / WANG CHENYU (Autor:in)
09.08.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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