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 relates to the technical field of building materials, and particularly discloses recycled concrete and a preparation method thereof. The recycled concrete is prepared from the following raw materials in parts by weight: 40 to 50 parts of sand, 35 to 45 parts of cement, 20 to 30 parts of fly ash, 60 to 70 parts of modified recycled coarse aggregate, 1 to 2 parts of water reducing agent, 15 to 20 parts of water and 6 to 10 parts of fiber, the modified recycled coarse aggregate is obtained by performing compound modification on recycled coarse aggregate by organic silicon resin and nano silicon dioxide; the preparation method comprises the following steps: S1, mixing the sand, the cement, the fly ash and the modified recycled coarse aggregate to obtain a dry mixture; s2, mixing a water reducing agent with water, and dispersing fibers in the mixture to obtain a mixed solution; s3, adding the dry mixture into the mixed solution, and mixing to obtain the recycled concrete. The concrete disclosed by the invention is high in compressive strength and splitting strength.
本申请涉及建筑材料技术领域，具体公开了一种再生混凝土及其制备方法。一种再生混凝土，包括以下重量份原料：砂40‑50份、水泥35‑45份、粉煤灰20‑30份、改性再生粗骨料60‑70份、减水剂1‑2份、水15‑20份、纤维6‑10份；所述改性再生粗骨料由有机硅树脂与纳米二氧化硅对再生粗骨料进行复合改性得到；其制备方法为：S1.将砂、水泥、粉煤灰、改性再生粗骨料混合，得到干混料；S2将减水剂与水混合，并将纤维分散在其中，得到混合液；S3.将干混物加入混合液中，混合得到再生混凝土。本申请的混凝土抗压强度与抗劈裂强度高。
Recycled concrete and preparation method thereof
The invention relates to the technical field of building materials, and particularly discloses recycled concrete and a preparation method thereof. The recycled concrete is prepared from the following raw materials in parts by weight: 40 to 50 parts of sand, 35 to 45 parts of cement, 20 to 30 parts of fly ash, 60 to 70 parts of modified recycled coarse aggregate, 1 to 2 parts of water reducing agent, 15 to 20 parts of water and 6 to 10 parts of fiber, the modified recycled coarse aggregate is obtained by performing compound modification on recycled coarse aggregate by organic silicon resin and nano silicon dioxide; the preparation method comprises the following steps: S1, mixing the sand, the cement, the fly ash and the modified recycled coarse aggregate to obtain a dry mixture; s2, mixing a water reducing agent with water, and dispersing fibers in the mixture to obtain a mixed solution; s3, adding the dry mixture into the mixed solution, and mixing to obtain the recycled concrete. The concrete disclosed by the invention is high in compressive strength and splitting strength.
本申请涉及建筑材料技术领域，具体公开了一种再生混凝土及其制备方法。一种再生混凝土，包括以下重量份原料：砂40‑50份、水泥35‑45份、粉煤灰20‑30份、改性再生粗骨料60‑70份、减水剂1‑2份、水15‑20份、纤维6‑10份；所述改性再生粗骨料由有机硅树脂与纳米二氧化硅对再生粗骨料进行复合改性得到；其制备方法为：S1.将砂、水泥、粉煤灰、改性再生粗骨料混合，得到干混料；S2将减水剂与水混合，并将纤维分散在其中，得到混合液；S3.将干混物加入混合液中，混合得到再生混凝土。本申请的混凝土抗压强度与抗劈裂强度高。
Recycled concrete and preparation method thereof
一种再生混凝土及其制备方法
PENG SIDONG (author)
2023-04-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Recycled concrete, recycled concrete prefabricated part and preparation method thereof
| European Patent Office | 2021