Self-compacting concrete based on ultrasonic concussion technology and preparation method of self-compacting concrete

Abstract

The invention discloses self-compacting concrete based on an ultrasonic concussion technology and a preparation method of the self-compacting concrete. According to the method, stone powder byproducts generated in the machining process of a quarry are selected; sisal fibers and stone powder are applied to the self-compacting concrete; the working performance and the mechanical strength of the self-compacting concrete can be remarkably improved through the synergistic effect of the sisal fibers and the stone powder after the sisal fibers are modified through ultrasonic oscillation. Surface treatment is performed on the sisal fibers, ultrasonic oscillation, is performed; water and an additive are added to prepare a mixed solution; the mixed solution is stirred and oscillated, so that particles can be uniformly dispersed, so that the characteristics of the material are exerted to the greatest extent; and the finally obtained sisal fiber-stone powder self-compacting concrete can meet the flowability required by application to engineering, and the excellent mechanical property and strength are also ensured.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a sisal fiber and stone powder composite self-compacting concrete based on ultrasonic vibration technology and a preparation method thereof. Background technique [0002] Self-compacting concrete is currently one of the most widely used types of concrete in the world, mainly because of its self-compacting properties and strength. Unlike traditional concrete, self-compacting concrete does not require the use of external compaction machinery such as immersion vibrators. It is a highly fluid, non-separating, special type of concrete, and by its own weight, it Can be incorporated into a variety of templates, including heavily reinforced areas as well as narrow and deep areas. [0003] Since the 21st century, the application and research of fibers in self-compacting concrete has gradually become popular. Sisal fiber is very long, cheap, tough, elastic, strong in tension, acid-resis...

AI Technical Summary

Problems solved by technology

Adding micron-sized stone powder and modified sisal fiber to the concrete can improve the strength of self-compacting concrete under the same conditions. At the same time, the concrete can introduce stone powder to the greatest extent, which can solve the problem of introducing too much stone powder in the prior art. The problem of reduced concrete strength caused by

The self-compacting concrete is reconfigured using ultrasonic vibration technology. In addition to fully dispersing the sisal fibers, the ultrasonic vibration can wrap nano-scale silica on the sisal fibers, making the fibers rougher and significantly Increase the friction of the fiber in the concrete, and solve the problem of the decrease of the concrete strength caused by the introduction of excessive stone powder

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