Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing self-compacting concrete by adopting shield muck separated aggregate
The invention relates to the technical field of concrete processing, in particular to a method for preparing self-compacting concrete from shield muck separated aggregate, which specifically comprises the following steps: 1) adding water into shield muck, and stirring to obtain muck slurry; 2) screening and cleaning the slag slurry to obtain stones with different particle sizes; (3) gradation is conducted on the stones according to a fullerene gradation curve; and 4) uniformly stirring the graded stones, Portland cement, water and polycarboxylic acid water reducer to obtain the required self-compacting concrete. The self-compacting concrete disclosed by the invention has good flowability and compactness, can flow and compact under the action of self gravity, not only improves the production efficiency and the surface quality of the concrete, but also improves the interface area structure of the concrete, so that the concrete structure is compact, the strength is improved, the permeability is low, and the durability of the concrete is remarkably improved.
本发明涉及混凝土加工技术领域，具体为一种采用盾构渣土分选骨料制备自密实混凝土的方法，具体包括以下步骤:1)将盾构渣土加水进行搅拌得到渣浆；2)将渣浆体，经筛分、清洗，得到不同粒径的石子；3)将石子按照富勒级配曲线进行级配；4)将级配过的石子、硅酸盐水泥、水以及聚羧酸减水剂搅拌均匀，即得所需得自密实混凝土。本发明中自密实混凝土，具有很好的流动性和密实性，在自身重力作用下，能够流动、密实，不仅提高了混凝土的生产效率以及表面质量，而且改善了混凝土的界面区结构，使得混凝土结构密实，强度提高，渗透性低，从而显著提高其耐久性能。
Method for preparing self-compacting concrete by adopting shield muck separated aggregate
The invention relates to the technical field of concrete processing, in particular to a method for preparing self-compacting concrete from shield muck separated aggregate, which specifically comprises the following steps: 1) adding water into shield muck, and stirring to obtain muck slurry; 2) screening and cleaning the slag slurry to obtain stones with different particle sizes; (3) gradation is conducted on the stones according to a fullerene gradation curve; and 4) uniformly stirring the graded stones, Portland cement, water and polycarboxylic acid water reducer to obtain the required self-compacting concrete. The self-compacting concrete disclosed by the invention has good flowability and compactness, can flow and compact under the action of self gravity, not only improves the production efficiency and the surface quality of the concrete, but also improves the interface area structure of the concrete, so that the concrete structure is compact, the strength is improved, the permeability is low, and the durability of the concrete is remarkably improved.
本发明涉及混凝土加工技术领域，具体为一种采用盾构渣土分选骨料制备自密实混凝土的方法，具体包括以下步骤:1)将盾构渣土加水进行搅拌得到渣浆；2)将渣浆体，经筛分、清洗，得到不同粒径的石子；3)将石子按照富勒级配曲线进行级配；4)将级配过的石子、硅酸盐水泥、水以及聚羧酸减水剂搅拌均匀，即得所需得自密实混凝土。本发明中自密实混凝土，具有很好的流动性和密实性，在自身重力作用下，能够流动、密实，不仅提高了混凝土的生产效率以及表面质量，而且改善了混凝土的界面区结构，使得混凝土结构密实，强度提高，渗透性低，从而显著提高其耐久性能。
Method for preparing self-compacting concrete by adopting shield muck separated aggregate
一种采用盾构渣土分选骨料制备自密实混凝土的方法
HUA KAIHUI (Autor:in) / GAO PINHAI (Autor:in) / SU WENZHENG (Autor:in) / DI BO (Autor:in) / ZHOU LINGZHU (Autor:in) / ZHENG YU (Autor:in)
17.01.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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