Trapezoidal sleeper square steel micro-expansion concrete
A technology of micro-expanded concrete and trapezoidal pillow, applied in the field of concrete, can solve the problems of low strength, long solidification period, and linear expansion can not meet the requirements, and achieve the effect of reducing porosity, improving various properties, and shortening construction period.
Inactive Publication Date: 2020-01-17
RUZHOU ZHENGTIE SANJIA CEMENT PROD
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Problems solved by technology
[0004] In the production of trapezoidal sleepers, the intermediate connection is square steel. Generally, concrete is filled in the square steel to improve the strength of the square steel. The concrete filled with the existing square steel is ordinary concrete. After the combination of ordinary concrete and square steel, there are the following defects : Long solidification period, low strength, linear expansion cannot meet the requirements, low strength, etc.
Method used
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Embodiment 1
[0043] A kind of micro-expansion concrete with trapezoidal pillow square steel. The raw materials used are: 330kg of cement, 220kg of fly ash, 43kg of coarse-grained quartz sand, 172kg of medium-coarse-sized quartz sand, and 215kg of fine-grained quartz sand in parts by weight. , 0# colloid crystal 20 kg and expansion agent 0.2kg.
Embodiment 2
[0045] A kind of micro-expansion concrete with trapezoidal pillow square steel. The raw materials used are: 320 kg of cement, 230 kg of fly ash, 40 kg of coarse-grained quartz sand, 180 kg of medium-coarse-sized quartz sand, and 180 kg of fine-grained quartz sand in parts by weight. 210kg, 0# colloidal crystal 20 kg and expansion agent 0.2kg.
Embodiment 3
[0047] A trapezoidal pillow square steel micro-expansion concrete, the raw materials used are: cement 335kg, fly ash 210kg, coarse-grained quartz sand 50kg, medium-coarse-sized quartz sand 170kg, fine-grained quartz sand 220kg kg, 0# colloidal crystal 15kg and expansion agent 0.2kg.
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Abstract
The invention belongs to the technical field of concrete, and particularly relates to trapezoidal sleeper square steel micro-expansion concrete. The concrete is prepared from the following raw materials: cement, fly ash, coarse-particle-size quartz sand, medium-coarse-particle-size quartz sand, fine-particle-size quartz sand, 0 # colloidal crystal and an expanding agent. The micro-expansion concrete has a good linear expansion rate, a formed pouring body is free of shrinkage after being used for a long time, and tight contact between equipment and a foundation can be guaranteed.
Description
technical field [0001] The invention belongs to the technical field of concrete, and in particular relates to a trapezoidal pillow square steel micro-expansion concrete. Background technique [0002] With the rapid development of the national economy, people's quality of life has been significantly improved, and the demand for buildings is also constantly changing. More attention is paid to the appearance and use of buildings. played an important role. [0003] Micro-expansion concrete is a cement-based, micro-expansion, early-strength and high-strength concrete, with high-strength materials as aggregates, cement as a binder, and high fluidity, micro-expansion, anti-segregation and other materials. It has the characteristics of good fluidity, micro-expansion, early strength and high strength, and oil seepage resistance. It can fully fill the perfusion space. Add a certain amount of water at the construction site, and it can be used after mixing evenly. It has high quality, ...
Claims
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IPC IPC(8): C04B28/04C04B40/02
CPCC04B28/04C04B40/02C04B2201/50C04B2201/52C04B18/08C04B14/06C04B24/24C04B2103/0068
Inventor 邹红超李振杰杨佳佳王军志朱超超
Owner RUZHOU ZHENGTIE SANJIA CEMENT PROD