A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Recycled concrete and preparation method thereof
The invention discloses recycled concrete and a preparation method thereof, and relates to the technical field of concrete. According to the technical scheme, the recycled concrete is prepared from, by weight, the following raw materials: 280-300 kg/m < 3 > of cement; 70-90 kg/m < 3 > of fly ash; 800 to 820 kg/m < 3 > of sand; 790 to 810kg/m < 3 > of recycled coarse aggregate; 190-210 kg/m < 3 > of natural gravel; 9-10 kg/m < 3 > of an additive; 155 to 165 kg/m < 3 > of water; 55 to 65 kg/m < 3 > of polyether polyol; 30 to 40 kg/m < 3 > of isocyanate; 0.15-0.3 kg/m < 3 > of an amine catalyst;1-2 kg/m < 3 > of silicone oil; and a foaming agent 3-5kg/m < 3 >. The recycled concrete provided by the invention has relatively high thermal insulation property and compressive strength.
本发明公开一种再生混凝土及其制备方法，涉及混凝土技术领域技术领域。其技术要点是：一种再生混凝土，其原料包括如下重量份数的组分：水泥280‑300kg/m；粉煤灰70‑90kg/m；砂800‑820kg/m；再生粗集料790‑810kg/m；天然碎石190‑210kg/m；外加剂9‑10kg/m；水155‑165kg/m；聚醚多元醇55‑65kg/m；异氰酸酯30‑40kg/m；胺催化剂0.15‑0.3kg/m；硅油1‑2kg/m；发泡剂3‑5kg/m。本发明中的再生混凝土具有较高的保温性能和抗压强度。
Recycled concrete and preparation method thereof
The invention discloses recycled concrete and a preparation method thereof, and relates to the technical field of concrete. According to the technical scheme, the recycled concrete is prepared from, by weight, the following raw materials: 280-300 kg/m < 3 > of cement; 70-90 kg/m < 3 > of fly ash; 800 to 820 kg/m < 3 > of sand; 790 to 810kg/m < 3 > of recycled coarse aggregate; 190-210 kg/m < 3 > of natural gravel; 9-10 kg/m < 3 > of an additive; 155 to 165 kg/m < 3 > of water; 55 to 65 kg/m < 3 > of polyether polyol; 30 to 40 kg/m < 3 > of isocyanate; 0.15-0.3 kg/m < 3 > of an amine catalyst;1-2 kg/m < 3 > of silicone oil; and a foaming agent 3-5kg/m < 3 >. The recycled concrete provided by the invention has relatively high thermal insulation property and compressive strength.
本发明公开一种再生混凝土及其制备方法，涉及混凝土技术领域技术领域。其技术要点是：一种再生混凝土，其原料包括如下重量份数的组分：水泥280‑300kg/m；粉煤灰70‑90kg/m；砂800‑820kg/m；再生粗集料790‑810kg/m；天然碎石190‑210kg/m；外加剂9‑10kg/m；水155‑165kg/m；聚醚多元醇55‑65kg/m；异氰酸酯30‑40kg/m；胺催化剂0.15‑0.3kg/m；硅油1‑2kg/m；发泡剂3‑5kg/m。本发明中的再生混凝土具有较高的保温性能和抗压强度。
Recycled concrete and preparation method thereof
一种再生混凝土及其制备方法
DENG SHAOYU (author)
2020-05-05
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Recycled concrete, recycled concrete prefabricated part and preparation method thereof
| European Patent Office | 2021