Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention belongs to the technical field of concrete, and provides anti-freezing concrete which is prepared by mixing the following raw materials in parts by weight: 400 to 550 parts of cement, 80 to 95 parts of mineral admixture, 600 to 700 parts of fine aggregate, 1200 to 1350 parts of coarse aggregate, 160 to 200 parts of water, 5 to 15 parts of water reducing agent and 0.2 to 0.5 part of air entraining agent, the novel anti-freezing concrete formula is prepared, an anti-freezing agent does not need to be added, the concrete reaches the anti-freezing grade, the low water-binder ratio can be kept, accordingly, the capillary porosity in the concrete is reduced, the anti-freezing performance is enhanced, sufficient microbubbles are formed in the concrete through the air entraining agent, the frost heaving pressure is buffered, and the anti-freezing performance of the concrete is improved. The compactness of the concrete can be improved through grading of the coarse aggregate and the fine aggregate, capillary pores are filled with the admixture, and the compactness and durability of the concrete are improved.
本发明属于混凝土技术领域，提供了一种抗冻混凝土，包括以下重量份的原料拌和而成：水泥400‑550份，矿物掺合料80‑95份，细骨料600‑700份，粗骨料1200‑1350份，水160‑200份，减水剂5‑15份，引气剂0.2‑0.5份；本发明通过配置新型抗冻混凝土配方，无需添加防冻剂，使混凝土达到抗冻等级，其可以保持较低的水胶比，从而降低混凝土中的毛细孔隙率，增强抗冻性能，通过引气剂使混凝土内部形成足够的微细气泡，缓冲冻胀压力，粗、细骨料的级配可以提高混凝土的密实度，使用掺合料用以填充毛细孔隙，提高混凝土的密实度和耐久性。
The invention belongs to the technical field of concrete, and provides anti-freezing concrete which is prepared by mixing the following raw materials in parts by weight: 400 to 550 parts of cement, 80 to 95 parts of mineral admixture, 600 to 700 parts of fine aggregate, 1200 to 1350 parts of coarse aggregate, 160 to 200 parts of water, 5 to 15 parts of water reducing agent and 0.2 to 0.5 part of air entraining agent, the novel anti-freezing concrete formula is prepared, an anti-freezing agent does not need to be added, the concrete reaches the anti-freezing grade, the low water-binder ratio can be kept, accordingly, the capillary porosity in the concrete is reduced, the anti-freezing performance is enhanced, sufficient microbubbles are formed in the concrete through the air entraining agent, the frost heaving pressure is buffered, and the anti-freezing performance of the concrete is improved. The compactness of the concrete can be improved through grading of the coarse aggregate and the fine aggregate, capillary pores are filled with the admixture, and the compactness and durability of the concrete are improved.
本发明属于混凝土技术领域，提供了一种抗冻混凝土，包括以下重量份的原料拌和而成：水泥400‑550份，矿物掺合料80‑95份，细骨料600‑700份，粗骨料1200‑1350份，水160‑200份，减水剂5‑15份，引气剂0.2‑0.5份；本发明通过配置新型抗冻混凝土配方，无需添加防冻剂，使混凝土达到抗冻等级，其可以保持较低的水胶比，从而降低混凝土中的毛细孔隙率，增强抗冻性能，通过引气剂使混凝土内部形成足够的微细气泡，缓冲冻胀压力，粗、细骨料的级配可以提高混凝土的密实度，使用掺合料用以填充毛细孔隙，提高混凝土的密实度和耐久性。
Anti-freezing concrete
一种抗冻混凝土
HAO ZHUANYUN (Autor:in)
02.08.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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