Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses early-stage anti-cracking high-strength concrete and a preparation method thereof, and relates to the technical field of concrete. The early-stage anti-cracking high-strength concrete comprises the following components in parts by weight: 190 to 210 parts of water, 330 to 350 parts of Portland cement, 480 to 520 parts of medium sand, 720 to 790 parts of broken stone, 2.5 to3.5 parts of a water reducing agent, 60 to 80 parts of mineral powder, 4 to 6 parts of a retarder, and 30 to 35 parts of full tailings with the density of 2.69 g/cm<2>, the loose volume weight of 1.3g/cm<3> and the porosity of larger than 50%. The early-stage anti-cracking high-strength concrete is prepared by the following steps: S1, fully mixing Portland cement, medium sand, broken stone, mineral powder and full tailings in corresponding parts by weight to form a mixture, S2, adding the retarder and the water reducing agent in corresponding parts by weight into water to form a mixed solution, and S3, adding the mixed solution into the mixture, and continuously stirring and mixing to obtain the product. The prepared concrete has the advantages of being high in structural strength and not prone to cracking in the early forming process.
本发明公开了一种早期抗裂型高强度混凝土及其制备方法，涉及混凝土技术领域。早期抗裂型高强度混凝土包括如下重量份数的组分：水：190‑210份；硅酸盐水泥：330‑350份；中砂：480‑520份；石子：720‑790份；减水剂：2.5‑3.5份；矿粉：60‑80份；缓凝剂：4‑6份；全尾砂30‑35份；所述全尾砂的密度为2.69g/cm，松散容重为1.3g/cm，孔隙率大于50%。该早期抗裂型高强度混凝土由以下步骤制得：S1，将相应重量份数的硅酸盐水泥、中砂、石子、矿粉和全尾砂充分混合，形成混合物；S2，将相应重量份数的缓凝剂和减水剂加入水中，形成混合液；S3，将混合液加入到混合物中，持续搅拌混合，即得。本发明制备得到的混凝土具有结构强度高、早期成型过程中不易开裂的优点。
The invention discloses early-stage anti-cracking high-strength concrete and a preparation method thereof, and relates to the technical field of concrete. The early-stage anti-cracking high-strength concrete comprises the following components in parts by weight: 190 to 210 parts of water, 330 to 350 parts of Portland cement, 480 to 520 parts of medium sand, 720 to 790 parts of broken stone, 2.5 to3.5 parts of a water reducing agent, 60 to 80 parts of mineral powder, 4 to 6 parts of a retarder, and 30 to 35 parts of full tailings with the density of 2.69 g/cm<2>, the loose volume weight of 1.3g/cm<3> and the porosity of larger than 50%. The early-stage anti-cracking high-strength concrete is prepared by the following steps: S1, fully mixing Portland cement, medium sand, broken stone, mineral powder and full tailings in corresponding parts by weight to form a mixture, S2, adding the retarder and the water reducing agent in corresponding parts by weight into water to form a mixed solution, and S3, adding the mixed solution into the mixture, and continuously stirring and mixing to obtain the product. The prepared concrete has the advantages of being high in structural strength and not prone to cracking in the early forming process.
本发明公开了一种早期抗裂型高强度混凝土及其制备方法，涉及混凝土技术领域。早期抗裂型高强度混凝土包括如下重量份数的组分：水：190‑210份；硅酸盐水泥：330‑350份；中砂：480‑520份；石子：720‑790份；减水剂：2.5‑3.5份；矿粉：60‑80份；缓凝剂：4‑6份；全尾砂30‑35份；所述全尾砂的密度为2.69g/cm，松散容重为1.3g/cm，孔隙率大于50%。该早期抗裂型高强度混凝土由以下步骤制得：S1，将相应重量份数的硅酸盐水泥、中砂、石子、矿粉和全尾砂充分混合，形成混合物；S2，将相应重量份数的缓凝剂和减水剂加入水中，形成混合液；S3，将混合液加入到混合物中，持续搅拌混合，即得。本发明制备得到的混凝土具有结构强度高、早期成型过程中不易开裂的优点。
Early-stage anti-cracking high-strength concrete and preparation method thereof
一种早期抗裂型高强度混凝土及其制备方法
14.08.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Early-stage anti-cracking ultra-high performance concrete and preparation method thereof
| Europäisches Patentamt | 2023
High-strength anti-cracking concrete and preparation method thereof
| Europäisches Patentamt | 2022
High-strength anti-cracking concrete and preparation process thereof
| Europäisches Patentamt | 2021
High-strength anti-freezing and anti-cracking concrete and preparation process thereof
| Europäisches Patentamt | 2023
Lightweight high-strength durable anti-cracking concrete and preparation process thereof
| Europäisches Patentamt | 2023