Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of steam-curing-free ultra-high performance concrete for bridge splicing seam
The invention discloses a preparation method of steam-curing-free ultra-high performance concrete for bridge splicing seams, and belongs to the technical field of concrete preparation, and the preparation method comprises the following steps: firstly adding cement, microbeads and silica fume into a stirring pot, stirring for 60 seconds, uniformly mixing, then adding quartz sand, stirring for 60 seconds, then adding water and a water reducing agent, stirring for 120 seconds, finally adding steel fibers, stirring for 120 seconds, and finally adding a curing agent for curing. The concrete is obtained. The prepared ultra-high performance concrete not only meets construction performance, but also meets good strength, elasticity modulus, tensile strength of an elastic section, ultimate tensile strength, ultimate tensile strain, 28d shrinkage rate and chloride ion diffusion coefficient.
本发明公开了一种用于桥梁拼接缝的免蒸养超高性能混凝土的制备方法，属于混凝土制备技术领域，包括如下步骤：先将水泥、微珠、硅灰加入搅拌锅中搅拌60s混合均匀，再加入石英砂，搅拌时间为60s，再加水和减水剂，搅拌120s,最后加入钢纤维，搅拌时间120s，得到所述混凝土。本发明所制备的超高性能混凝土不仅满足施工性能，还满足良好的强度、弹性模量、弹性段抗拉强度、极限抗拉强度、极限拉伸应变、28d收缩率、氯离子扩散系数。
Preparation method of steam-curing-free ultra-high performance concrete for bridge splicing seam
The invention discloses a preparation method of steam-curing-free ultra-high performance concrete for bridge splicing seams, and belongs to the technical field of concrete preparation, and the preparation method comprises the following steps: firstly adding cement, microbeads and silica fume into a stirring pot, stirring for 60 seconds, uniformly mixing, then adding quartz sand, stirring for 60 seconds, then adding water and a water reducing agent, stirring for 120 seconds, finally adding steel fibers, stirring for 120 seconds, and finally adding a curing agent for curing. The concrete is obtained. The prepared ultra-high performance concrete not only meets construction performance, but also meets good strength, elasticity modulus, tensile strength of an elastic section, ultimate tensile strength, ultimate tensile strain, 28d shrinkage rate and chloride ion diffusion coefficient.
本发明公开了一种用于桥梁拼接缝的免蒸养超高性能混凝土的制备方法，属于混凝土制备技术领域，包括如下步骤：先将水泥、微珠、硅灰加入搅拌锅中搅拌60s混合均匀，再加入石英砂，搅拌时间为60s，再加水和减水剂，搅拌120s,最后加入钢纤维，搅拌时间120s，得到所述混凝土。本发明所制备的超高性能混凝土不仅满足施工性能，还满足良好的强度、弹性模量、弹性段抗拉强度、极限抗拉强度、极限拉伸应变、28d收缩率、氯离子扩散系数。
Preparation method of steam-curing-free ultra-high performance concrete for bridge splicing seam
用于桥梁拼接缝的免蒸养超高性能混凝土的制备方法
DENG WENHAO (Autor:in) / WU YEJUN (Autor:in) / ZHANG SONG (Autor:in) / LU JUNYAO (Autor:in) / LIN CHAO (Autor:in) / ZENG PENG (Autor:in)
23.06.2023
Patent
Elektronische Ressource
Chinesisch
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