Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-strength anti-crack concrete for fabricated pool prefabricated wall panel
The invention discloses high-strength anti-crack concrete for an assembly type pool prefabricated wallboard, the high-strength anti-crack concrete is prepared from the following components in parts by weight: 460-480 parts of cement, 680-710 parts of sand, 950-985 parts of stone, 210-240 parts of water, 2-5 parts of polyurethane particles, 2.3-5.5 parts of an additive and 0.65-1.5 parts of an anti-crack agent, the anti-crack agent is prepared from metal powder, graphene and reinforced fibers, the additive is a mixture of potassium salt and sodium salt. The water pool prefabricated wallboard prepared from the high-strength anti-crack concrete for the fabricated water pool prefabricated wallboard has the characteristics of high strength, good durability, light weight, strong impermeability, good thermal insulation performance, reduction of the concrete dosage and reduction of the concrete cost, and the service life of a fabricated concrete water pool is remarkably prolonged; compared with a common concrete prefabricated part, the 28-day compressive strength is improved by 40-80%, the 28-day breaking strength is improved by 60-120%, the early-stage crack resistance is greatly improved, and the compressive toughness is greatly improved; the polypropylene fibers are good in binding power, so that the plasticity of the concrete member is improved, the early cracking phenomenon in the use process of the concrete member is avoided, and the use durability of the concrete member is effectively improved; a proper amount of the anti-cracking agent composed of the metal powder, the graphene and the reinforced fibers is added, so that the strength, durability and corrosion resistance of the concrete member are remarkably improved, the service life of the concrete member can be greatly prolonged, and the scrap frequency is reduced.
本发明公开了一种用于装配式水池预制墙板的高强度抗裂混凝土，包括如下重量组分：水泥460‑480份、砂子680‑710份、石子950‑985份、水210‑240份、聚氨酯颗粒2‑5份、外加剂2.3‑5.5份、抗裂剂0.65‑1.5份，所述的抗裂剂由金属粉、石墨烯和增强纤维组成，所述的外加剂为钾盐和钠盐的混合物。本发明的用于装配式水池预制墙板的高强度抗裂混凝土制备的水池预制墙板，具有强度高、耐久性好、质量轻、抗渗性强、保温性能好、减少混凝土用量、降低混凝土成本的特点，并显著提高装配式混凝土水池的使用寿命；与普通混凝土预制构件相比，28天抗压强度提高40～80％，28天抗折强度提高60～120％，早期抗裂性能大幅度提高，抗压韧性大幅度提高；聚丙烯纤维的粘结力好，从而提高了混凝土构件的塑性，避免混凝土构件使用过程中早裂现象的产生，有效提高混凝土构件的使用耐久性；加入了适量的由金属粉、石墨烯、增强纤维组成的抗裂剂，使混凝土构件的强度、耐用性和耐腐蚀性均得到显著提高，从而可以大大提高混凝土预制构件的使用寿命，降低报废频率。
High-strength anti-crack concrete for fabricated pool prefabricated wall panel
The invention discloses high-strength anti-crack concrete for an assembly type pool prefabricated wallboard, the high-strength anti-crack concrete is prepared from the following components in parts by weight: 460-480 parts of cement, 680-710 parts of sand, 950-985 parts of stone, 210-240 parts of water, 2-5 parts of polyurethane particles, 2.3-5.5 parts of an additive and 0.65-1.5 parts of an anti-crack agent, the anti-crack agent is prepared from metal powder, graphene and reinforced fibers, the additive is a mixture of potassium salt and sodium salt. The water pool prefabricated wallboard prepared from the high-strength anti-crack concrete for the fabricated water pool prefabricated wallboard has the characteristics of high strength, good durability, light weight, strong impermeability, good thermal insulation performance, reduction of the concrete dosage and reduction of the concrete cost, and the service life of a fabricated concrete water pool is remarkably prolonged; compared with a common concrete prefabricated part, the 28-day compressive strength is improved by 40-80%, the 28-day breaking strength is improved by 60-120%, the early-stage crack resistance is greatly improved, and the compressive toughness is greatly improved; the polypropylene fibers are good in binding power, so that the plasticity of the concrete member is improved, the early cracking phenomenon in the use process of the concrete member is avoided, and the use durability of the concrete member is effectively improved; a proper amount of the anti-cracking agent composed of the metal powder, the graphene and the reinforced fibers is added, so that the strength, durability and corrosion resistance of the concrete member are remarkably improved, the service life of the concrete member can be greatly prolonged, and the scrap frequency is reduced.
本发明公开了一种用于装配式水池预制墙板的高强度抗裂混凝土，包括如下重量组分：水泥460‑480份、砂子680‑710份、石子950‑985份、水210‑240份、聚氨酯颗粒2‑5份、外加剂2.3‑5.5份、抗裂剂0.65‑1.5份，所述的抗裂剂由金属粉、石墨烯和增强纤维组成，所述的外加剂为钾盐和钠盐的混合物。本发明的用于装配式水池预制墙板的高强度抗裂混凝土制备的水池预制墙板，具有强度高、耐久性好、质量轻、抗渗性强、保温性能好、减少混凝土用量、降低混凝土成本的特点，并显著提高装配式混凝土水池的使用寿命；与普通混凝土预制构件相比，28天抗压强度提高40～80％，28天抗折强度提高60～120％，早期抗裂性能大幅度提高，抗压韧性大幅度提高；聚丙烯纤维的粘结力好，从而提高了混凝土构件的塑性，避免混凝土构件使用过程中早裂现象的产生，有效提高混凝土构件的使用耐久性；加入了适量的由金属粉、石墨烯、增强纤维组成的抗裂剂，使混凝土构件的强度、耐用性和耐腐蚀性均得到显著提高，从而可以大大提高混凝土预制构件的使用寿命，降低报废频率。
High-strength anti-crack concrete for fabricated pool prefabricated wall panel
一种用于装配式水池预制墙板的高强度抗裂混凝土
SHEN YANXIA (Autor:in)
13.08.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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