A clay-slag-based anti-seismic reinforcement mineral grouting material for ports and its preparation method

Abstract

A clay-slag-based anti-seismic reinforcement mineral grouting material for ports and a preparation method thereof, relating to a grouting material and a preparation method. The particle size distribution of silty clay is as follows: 47.7% of the particle size is less than 0.005mm, 42.9% of the particle size is 0.005-0.05mm, 9.4% of the particle size is greater than 0.05mm, and the plasticity index is 13.5. The percentage consists of 60-70% slag fine powder, 6-10% phosphogypsum, 10-20% clinker activator, 3-8% alkali activator, 1.5% toughening agent, 2-4% expansion agent, 2-5% anti-dispersant and 3% thixotropic agent. The source of main materials is wider, the cost is lower, the process is simple, and the setting time of slurry can be flexibly controlled to meet the performance requirements of the port's seismic reinforcement.

Description

technical field [0001] The invention relates to a grouting material and a preparation method, in particular to a clay-slag-based port seismic reinforcement mineral grouting material and a preparation method, and belongs to the technical field of seismic reinforcement of liquefiable sandy soil for high-pile wharfs in port engineering. Background technique [0002] In response to the ever-increasing social needs, more and more port projects have been developed in my country, and the liquefiable sand foundations of ports are often poor foundations, which have the characteristics of poor bearing capacity, loose structure, and large compression deformation. increasingly attracting attention. Grouting technology has been developed for a long time in the solution of rock and soil geological disasters, and it is one of the most effective solutions, and the performance of grouting materials is the key factor affecting the effect of grouting. Therefore, the preparation of grouting mat...

AI Technical Summary

Problems solved by technology

However, grouting materials for liquefiable sand foundations in port projects are not common at present, and most of them use the technology of preparing grouting materials based on special cements such as sulfoaluminate and aluminate, which can achieve corrosion resistance and micro-expansion and other requirements, but its sources are few, the cost is high, and the production process will generate a lot of greenhouse gases, so it is not suitable for the practical application of large-scale grouting projects

In addition, the existing technology mostly uses fibers to solve the toughness problem of materials, but the addition of fibers also increases the difficulty of grouting construction, which is also not conducive to the practical application of grouting

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