Novel method for reinforcing and toughening concrete and concrete
A technology for strengthening and toughening concrete, applied in the field of high-performance concrete, which can solve the problems of wounding, reducing the workability of concrete, and limited addition, so as to improve the overall mechanical strength, inhibit vertical cracks, and inhibit the occurrence and development of concrete. Effect
Inactive Publication Date: 2021-11-30
HUNAN UNIV OF TECH
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Problems solved by technology
However, the amount of fiber added is limited by factors such as the degree of dispersion and the characteristics of the fiber itself. The amount of fiber added is limited, that is, it is basically impossible for the fiber to form a real continuous lap network in concrete, and it cannot assist concrete in improving its mechanical properties. promotion
[0004] Steel fiber concrete will greatly reduce the workability of concrete, and it is easy to form agglomerates when the concrete is mixed; during the preparation, construction and use of steel fiber concrete, steel fibers may stab people; the pavement made of steel fiber concrete may hurt people and puncture car tire
[0005] Since the dispersion effect of fibers in concrete is not very good, it is difficult to fully realize the theoretical reinforcement effect
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[0021] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.
[0022] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is said to be "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration ...
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The invention discloses a novel method for reinforcing and toughening concrete and the concrete. A steel ring is added into concrete, the hardened concrete is composed of a plurality of laterally-stressed concrete units, and each unit is similar to a steel pipe concrete structure. The concrete in the steel ring is restrained by the steel ring, so that the concrete in the steel ring is in a lateral compression state, lateral pressure of the concrete restrains transverse deformation of the concrete after compression, generation and development of vertical cracks in the concrete are restrained, and the overall mechanical strength of the concrete can be effectively improved.
Description
technical field [0001] The invention relates to a high-performance concrete, in particular to a reinforced and toughened ultra-high-performance concrete. Background technique [0002] Usually concrete will add additional materials to further improve its performance, commonly used are various types of fibers. [0003] The fiber reinforcement is to use the fibers to overlap each other in the concrete, which improves the continuity of the concrete after hardening, thereby improving the mechanical properties. But what the fibers form within the concrete is an unstable network that mostly does not directly overlap. However, the amount of fiber added is limited by factors such as the degree of dispersion and the characteristics of the fiber itself. The amount of fiber added is limited, that is, it is basically impossible for the fiber to form a real continuous lap network in concrete, and it cannot assist concrete in improving its mechanical properties. improvement. [0004] St...
Claims
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IPC IPC(8): C04B28/00
CPCC04B28/00C04B2201/52C04B2201/50C04B14/06C04B14/48C04B18/146C04B2103/302
Inventor 欧志华李芳涛李家楣李兆超龙广成黄春华奉瑞萍丁波
Owner HUNAN UNIV OF TECH