Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Recycled concrete and preparation method thereof
The invention relates to the 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: 5-6 parts of water, 13-15 parts of cement, 3-5 parts of a water reducing agent, 65-80 parts of recycled coarse aggregate, 35-40 parts of fine aggregate and 2-6 parts of filler, wherein the filler comprises nano silicon dioxide microspheres; the preparation method of the recycled concrete comprises the following steps: S1, primary mixing: mixing and stirring the cement and the filler according to a formula to obtain a first mixture; S2, secondary mixing: mixing and stirring the fine aggregate and the regenerated coarse aggregate, adding the first mixture, and mixing and stirring to obtain a second mixture; and S3, blending: sequentially adding a water reducing agent and water into the second mixture in the step S3, mixing and stirring, and naturally airing to obtain the recycled concrete. The recycled concrete has the advantages that the porosity of the recycled concrete is reduced, and then the strength of the recycled concrete is improved.
本申请涉及建筑材料领域，具体公开了一种再生混凝土及其制备方法。再生混凝土由包含以下重量份的原料制成：水5‑6份、水泥13‑15份、减水剂3‑5份、再生粗集料65‑80份、细集料35‑40份、填充料2‑6份；所述填充料包括纳米二氧化硅微球；再生混凝土的制备方法包括如下步骤：S1、一次混合：按配方，将水泥和填充料混合搅拌，得第一混合料；S2、二次混合：将细集料和再生粗集料混合搅拌后，加入第一混合料混合搅拌，得第二混合料；S3、共混：将减水剂、水依次加入步骤S3中的第二混合料中混合搅拌后，自然晾干，得再生混凝土。本申请的再生混凝土具有降低再生混凝土的孔隙率，进而提高再生混凝土的强度的优点。
Recycled concrete and preparation method thereof
The invention relates to the 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: 5-6 parts of water, 13-15 parts of cement, 3-5 parts of a water reducing agent, 65-80 parts of recycled coarse aggregate, 35-40 parts of fine aggregate and 2-6 parts of filler, wherein the filler comprises nano silicon dioxide microspheres; the preparation method of the recycled concrete comprises the following steps: S1, primary mixing: mixing and stirring the cement and the filler according to a formula to obtain a first mixture; S2, secondary mixing: mixing and stirring the fine aggregate and the regenerated coarse aggregate, adding the first mixture, and mixing and stirring to obtain a second mixture; and S3, blending: sequentially adding a water reducing agent and water into the second mixture in the step S3, mixing and stirring, and naturally airing to obtain the recycled concrete. The recycled concrete has the advantages that the porosity of the recycled concrete is reduced, and then the strength of the recycled concrete is improved.
本申请涉及建筑材料领域，具体公开了一种再生混凝土及其制备方法。再生混凝土由包含以下重量份的原料制成：水5‑6份、水泥13‑15份、减水剂3‑5份、再生粗集料65‑80份、细集料35‑40份、填充料2‑6份；所述填充料包括纳米二氧化硅微球；再生混凝土的制备方法包括如下步骤：S1、一次混合：按配方，将水泥和填充料混合搅拌，得第一混合料；S2、二次混合：将细集料和再生粗集料混合搅拌后，加入第一混合料混合搅拌，得第二混合料；S3、共混：将减水剂、水依次加入步骤S3中的第二混合料中混合搅拌后，自然晾干，得再生混凝土。本申请的再生混凝土具有降低再生混凝土的孔隙率，进而提高再生混凝土的强度的优点。
Recycled concrete and preparation method thereof
一种再生混凝土及其制备方法
QIU BO (Autor:in) / WANG XIAOJUN (Autor:in) / CHEN WENLONG (Autor:in) / WANG JIANJUN (Autor:in) / CHENG YUFENG (Autor:in)
12.11.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Recycled concrete, recycled concrete prefabricated part and preparation method thereof
| Europäisches Patentamt | 2021