Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
C60 high-strength self-compacting micro-expansive concrete and preparation method thereof
The invention discloses C60 high-strength self-compacting micro-expansive concrete which is prepared from the following components in parts by mass: 150 to 200 parts of water, 400 to 460 parts of cement, 570 to 850 parts of sand, 800 to 1100 parts of gravel, 45 to 65 parts of fly ash, 50 to 110 parts of mineral powder, 11 to 14 parts of additive and 40 to 52 parts of expanding agent. Compared with existing concrete with the same mark number, the concrete has micro-expansion and can be prevented from disengaging from the inner wall of the steel pipe column, so that the concrete and the steel pipe column are jointly stressed. The concrete has good self-compacting performance, the concrete can be free of vibration, and a cavity of a component with a complex internal structure is automatically filled with kinetic energy during high throwing. The technical problems that multiple transverse partition plates exist in the steel pipe column or an inclined steel pipe column is prone to forming air cavities at the partition plates during construction, and concrete is disengaged from the inner wall of the steel column are effectively solved.
本发明公开了一种C60高强自密实微膨胀混凝土，以质量份数计，包括水150～200份、水泥400～460份、砂570～850份、碎石800～1100份、粉煤灰45～65份、矿粉50～110份、外加剂11～14份、膨胀剂40～52份。与现有同标标号混凝土相比具有微膨胀，能防止混凝土与钢管柱内壁脱空，使其共同受力。具有良好的自密实性能，混凝土可免振捣，利用高抛时的动能自行充满内部结构复杂构件的腔体。有效解决钢管柱内横向隔板多或倾斜的钢管柱在施工时容易在隔板处形成气腔、混凝土与钢柱内壁脱开等技术难题。
C60 high-strength self-compacting micro-expansive concrete and preparation method thereof
The invention discloses C60 high-strength self-compacting micro-expansive concrete which is prepared from the following components in parts by mass: 150 to 200 parts of water, 400 to 460 parts of cement, 570 to 850 parts of sand, 800 to 1100 parts of gravel, 45 to 65 parts of fly ash, 50 to 110 parts of mineral powder, 11 to 14 parts of additive and 40 to 52 parts of expanding agent. Compared with existing concrete with the same mark number, the concrete has micro-expansion and can be prevented from disengaging from the inner wall of the steel pipe column, so that the concrete and the steel pipe column are jointly stressed. The concrete has good self-compacting performance, the concrete can be free of vibration, and a cavity of a component with a complex internal structure is automatically filled with kinetic energy during high throwing. The technical problems that multiple transverse partition plates exist in the steel pipe column or an inclined steel pipe column is prone to forming air cavities at the partition plates during construction, and concrete is disengaged from the inner wall of the steel column are effectively solved.
本发明公开了一种C60高强自密实微膨胀混凝土，以质量份数计，包括水150～200份、水泥400～460份、砂570～850份、碎石800～1100份、粉煤灰45～65份、矿粉50～110份、外加剂11～14份、膨胀剂40～52份。与现有同标标号混凝土相比具有微膨胀，能防止混凝土与钢管柱内壁脱空，使其共同受力。具有良好的自密实性能，混凝土可免振捣，利用高抛时的动能自行充满内部结构复杂构件的腔体。有效解决钢管柱内横向隔板多或倾斜的钢管柱在施工时容易在隔板处形成气腔、混凝土与钢柱内壁脱开等技术难题。
C60 high-strength self-compacting micro-expansive concrete and preparation method thereof
一种C60高强自密实微膨胀混凝土及其制备方法
HU SHANXI (Autor:in) / YANG BO (Autor:in) / LI JIANQUAN (Autor:in) / LI MENGMENG (Autor:in) / TANG XIN (Autor:in) / JIANG LIHAI (Autor:in)
17.06.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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