Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The recycled concrete is prepared from the following components in parts by weight: 500 to 700 parts of recycled coarse aggregate, 200 to 300 parts of recycled fine aggregate, 200 to 300 parts of cement, 20 to 40 parts of fly ash, 20 to 40 parts of mineral powder, 4 to 6 parts of a water reducing agent and 90 to 120 parts of water, wherein the particle size of the recycled coarse aggregate is 5-31.5 mm, and the particle size of the recycled fine aggregate is 0-5mm; the recycled coarse aggregate is a mixture of recycled aggregate with the particle size of 5-15mm and recycled aggregate with the particle size of 15-31.5 mm according to the weight ratio of 1: (1-5). According to the invention, the recycled coarse aggregate and the recycled fine aggregate with specific particle sizes are selected and compounded with other components according to a specific proportion, so that the prepared recycled concrete product has good compressive strength and carbonization resistance, and the durability is improved.
本发明公开了一种再生混凝土，包括如下重量份的组分：再生粗骨料500‑700份、再生细骨料200‑300份、水泥200‑300份、粉煤灰20‑40份、矿粉20‑40份、减水剂4‑6份、水90‑120份；其中，所述再生粗骨料的粒径为5‑31.5mm，所述再生细骨料的粒径为0‑5mm；所述再生粗骨料为重量比为1:(1‑5)的粒径为5‑15mm的再生骨料和粒径为15‑31.5mm的再生骨料的混合物。本申请中，通过选用特定粒径的再生粗骨料和再生细骨料，将其与其它组分以特定的比例复配，制得的再生混凝土产品具有良好的抗压强度和抗碳化性能，耐久性提高。
The recycled concrete is prepared from the following components in parts by weight: 500 to 700 parts of recycled coarse aggregate, 200 to 300 parts of recycled fine aggregate, 200 to 300 parts of cement, 20 to 40 parts of fly ash, 20 to 40 parts of mineral powder, 4 to 6 parts of a water reducing agent and 90 to 120 parts of water, wherein the particle size of the recycled coarse aggregate is 5-31.5 mm, and the particle size of the recycled fine aggregate is 0-5mm; the recycled coarse aggregate is a mixture of recycled aggregate with the particle size of 5-15mm and recycled aggregate with the particle size of 15-31.5 mm according to the weight ratio of 1: (1-5). According to the invention, the recycled coarse aggregate and the recycled fine aggregate with specific particle sizes are selected and compounded with other components according to a specific proportion, so that the prepared recycled concrete product has good compressive strength and carbonization resistance, and the durability is improved.
本发明公开了一种再生混凝土，包括如下重量份的组分：再生粗骨料500‑700份、再生细骨料200‑300份、水泥200‑300份、粉煤灰20‑40份、矿粉20‑40份、减水剂4‑6份、水90‑120份；其中，所述再生粗骨料的粒径为5‑31.5mm，所述再生细骨料的粒径为0‑5mm；所述再生粗骨料为重量比为1:(1‑5)的粒径为5‑15mm的再生骨料和粒径为15‑31.5mm的再生骨料的混合物。本申请中，通过选用特定粒径的再生粗骨料和再生细骨料，将其与其它组分以特定的比例复配，制得的再生混凝土产品具有良好的抗压强度和抗碳化性能，耐久性提高。
Recycled concrete, recycled concrete prefabricated part and preparation method thereof
| Europäisches Patentamt | 2021