Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-flow-state environment-friendly anti-crack premixed concrete and preparation method thereof
The invention belongs to the field of concrete, and particularly relates to high-flow-state environment-friendly anti-crack premixed concrete and a preparation method thereof. The concrete is preparedfrom the following raw materials in parts by weight: 200 to 300 parts of modified cement, 80 to 100 parts of slag powder, 50 to 60 parts of coal ash, 550 to 700 parts of fine aggregate, 570 to 700 parts of coarse aggregate, 15 to 26 parts of admixture, 2 to 2.5 parts of expanding agent, 1.2 to 3.3 parts of anti-cracking fiber and 170 to 185 parts of water, wherein the admixture comprises a polycarboxylate-type high-performance water reducing agent and a joint filling material. Ceramsite in the modified cement is adopted to ensure the water retention property, the admixture and the water reducing agent are matched to improve and ensure the high cohesiveness, and the expanding agent with a micro-expansion effect and the joint filling material are adopted to ensure the functions of no shrinkage and timely crack filling in the hardening process; and the high-flow-state environment-friendly anti-crack premixed concrete with high cohesiveness, high water-retaining property and micro-expansion property is obtained.
本发明属于混凝土领域，具体涉及一种高流态环保抗裂预拌混凝土及其制备方法。包括以下重量份数的原料为：改性水泥200～300份、矿渣粉80～100份、粉煤灰50～60份、细骨料550～700份、粗骨料570～700份、外加剂15～26份、膨胀剂2～2.5份、抗裂纤维1.2～3.3份、水170～185份；所述外加剂包括聚羧酸系高性能减水剂和填缝材料。采用改性水泥中的陶粒保证保水性，采用外加剂及减水剂的配合提高保证高粘聚性，采用有微膨胀效果的膨胀剂及填缝材料保证硬化过程不收缩及裂缝及时填堵的功能；得到高粘聚性、高保水性、微膨胀性能的高流态环保抗裂预拌混凝土。
High-flow-state environment-friendly anti-crack premixed concrete and preparation method thereof
The invention belongs to the field of concrete, and particularly relates to high-flow-state environment-friendly anti-crack premixed concrete and a preparation method thereof. The concrete is preparedfrom the following raw materials in parts by weight: 200 to 300 parts of modified cement, 80 to 100 parts of slag powder, 50 to 60 parts of coal ash, 550 to 700 parts of fine aggregate, 570 to 700 parts of coarse aggregate, 15 to 26 parts of admixture, 2 to 2.5 parts of expanding agent, 1.2 to 3.3 parts of anti-cracking fiber and 170 to 185 parts of water, wherein the admixture comprises a polycarboxylate-type high-performance water reducing agent and a joint filling material. Ceramsite in the modified cement is adopted to ensure the water retention property, the admixture and the water reducing agent are matched to improve and ensure the high cohesiveness, and the expanding agent with a micro-expansion effect and the joint filling material are adopted to ensure the functions of no shrinkage and timely crack filling in the hardening process; and the high-flow-state environment-friendly anti-crack premixed concrete with high cohesiveness, high water-retaining property and micro-expansion property is obtained.
本发明属于混凝土领域，具体涉及一种高流态环保抗裂预拌混凝土及其制备方法。包括以下重量份数的原料为：改性水泥200～300份、矿渣粉80～100份、粉煤灰50～60份、细骨料550～700份、粗骨料570～700份、外加剂15～26份、膨胀剂2～2.5份、抗裂纤维1.2～3.3份、水170～185份；所述外加剂包括聚羧酸系高性能减水剂和填缝材料。采用改性水泥中的陶粒保证保水性，采用外加剂及减水剂的配合提高保证高粘聚性，采用有微膨胀效果的膨胀剂及填缝材料保证硬化过程不收缩及裂缝及时填堵的功能；得到高粘聚性、高保水性、微膨胀性能的高流态环保抗裂预拌混凝土。
High-flow-state environment-friendly anti-crack premixed concrete and preparation method thereof
一种高流态环保抗裂预拌混凝土及其制备方法
HU YEXIAO (Autor:in) / ZUO ZHIQIANG (Autor:in) / CHENG MEI (Autor:in) / JIN QIANG (Autor:in) / ZHOU HUICHENG (Autor:in)
09.03.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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